Specific methods of how low-density sponge catalyst SMP improves product quality

Background and importance of low-density sponge catalyst SMP

SMP, Superior Micro Porous Catalyst, has been widely used in chemical industry, petroleum, pharmaceutical and other fields in recent years. Its unique micropore structure and high specific surface area make it exhibit excellent catalytic performance during the reaction process, which can significantly improve the reaction efficiency and product quality. The development and application of SMP not only promotes the upgrading of traditional catalysts, but also provides new solutions for modern industrial production.

SMP was born from a breakthrough in the limitations of traditional catalysts. Traditional catalysts such as solid acid and alkali catalysts often have problems such as limited active sites and large mass transfer resistance during use, resulting in a low reaction rate and a large by-product, which in turn affects the quality of the final product. By introducing microporous structures, SMP greatly increases the number of active sites and effectively reduces mass transfer resistance, thereby improving the selectivity and conversion rate of the reaction. In addition, SMP also has good thermal stability and mechanical strength, and can operate stably for a long time under harsh conditions such as high temperature and high pressure, further enhancing its application value in industrial production.

On a global scale, the research and application of SMP has become one of the hot spots in the field of catalytic science. Many well-known foreign research institutions and enterprises, such as ExxonMobil in the United States, BASF in Germany, and Mitsubishi Chemical in Japan, are actively investing resources in the development and optimization of SMP. In China, Tsinghua University, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, etc. have also achieved remarkable research results. These studies not only laid a solid foundation for the industrial application of SMP, but also provided important theoretical and technical support for improving product quality.

This article will focus on how to improve product quality through the application of SMP, including SMP preparation methods, product parameters, application examples and related literature citations. Through a comprehensive analysis of domestic and foreign research results, this article aims to provide readers with a comprehensive and in-depth understanding, helping enterprises better utilize SMP in actual production and achieve comprehensive improvement of product quality.

SMP preparation method and its characteristics

SMP preparation methods are diverse, mainly including template method, sol-gel method, precipitation method, hard template method, etc. Each method has its own unique advantages and disadvantages and is suitable for different application scenarios. The following is a detailed introduction to several common SMP preparation methods and their characteristics:

1. Template method

The template method is one of the commonly used methods for preparing SMP. Its basic principle is to control the pore structure of the catalyst by introducing a template agent. Commonly used template agents include organic molecules (such as surfactants), inorganic nanoparticles, etc. During the preparation process, the template agent is first mixed with the precursor solution to form an ordered composite; then calcined or solvent extraction, etc.Steps: Remove the template agent and leave a catalyst with a microporous structure.

Pros:

  • The pore size and shape can be precisely controlled to obtain an ideal micropore structure.
  • The preparation process is relatively simple and easy to produce on a large scale.

Disadvantages:

  • The removal process of template agent is relatively complicated and may affect the purity and stability of the catalyst.
  • The cost is high, especially when expensive template agents are used.

2. Sol-gel method

The sol-gel method is a chemical reaction-based preparation method, which is usually used to prepare SMPs with high uniformity and high specific surface area. The basic steps of the method include: first dissolving the metal salt or oxide in a solvent to form a sol; then gradually gelling the sol by adding a crosslinking agent or adjusting the pH; then drying and calcining treatment to obtain a micro-containing Catalyst for pore structure.

Pros:

  • SMPs with high specific surface area and uniform pore size distribution can be prepared.
  • The reaction conditions are mild and suitable for the preparation of temperature-sensitive catalysts.

Disadvantages:

  • The preparation cycle is long, especially during drying and calcining, the conditions are required to be strictly controlled.
  • Suitable for small batch preparation, it is difficult to achieve large-scale production.

3. Precipitation method

The precipitation method is to control the chemical reaction in the solution to precipitate the precursor substance under specific conditions to form SMP with a microporous structure. The method usually includes two main steps: first, mixing the precipitant solution with the precipitant to form a precipitate; then obtaining the final catalyst through post-treatment steps such as washing, drying and calcining.

Pros:

  • The preparation process is simple, low-cost, and suitable for large-scale production.
  • The pore structure of the catalyst can be controlled by adjusting the type and concentration of the precipitant.

Disadvantages:

  • It is difficult to obtain a uniform pore size distribution, which may lead to uneven active sites of the catalyst.
  • The morphology and structure of the precipitate are difficult to control, affecting the performance of the catalyst.

4. Hard template method

The hard template method is to prepare SM by using solid-state template agents (such as carbon nanotubes, silica, etc.)A method of P. Unlike the soft template method, the template agent of the hard template method will not be completely removed during the preparation process, but will be retained as a supporting material inside the catalyst to form a micropore network with a special structure.

Pros:

  • SMP with complex pore structures can be prepared, suitable for specific reaction systems.
  • The presence of template agents can enhance the mechanical strength and thermal stability of the catalyst.

Disadvantages:

  • The selection range of template agents is limited and it is difficult to meet the needs of all application scenarios.
  • The preparation process is relatively complicated and has high cost.

The microstructure of SMP and its influence on catalytic performance

The microstructure of SMP has a crucial influence on its catalytic performance. According to the size of the pore, SMP can be divided into three types: micropore, mesopore and macropore. The pore size of microporous SMP is usually less than 2 nm, the pore size of mesoporous SMP is between 2-50 nm, and the pore size of macroporous SMP is greater than 50 nm. Different types of SMPs show different advantages and limitations in catalytic reactions, as follows:

Operation Size Type Pore size range (nm) Features Applicable scenarios
Micropore <2 High specific surface area, large number of active sites Adsorption, gas separation, selective catalysis
Mesopore 2-50 Good mass transfer performance, moderate specific surface area Liquid phase catalysis, drug synthesis
Big Hole >50 Low mass transfer resistance, suitable for macromolecular reactions Biocatalysis, polymerization reaction

Microporous SMP is particularly suitable for adsorption and gas separation applications due to its extremely high specific surface area and abundant active sites. For example, during the carbon dioxide capture and storage (CCS), microporous SMP can effectively remove CO₂ from exhaust gases through adsorption and reduce greenhouse gas emissions. In addition, microporous SMP also exhibits excellent performance in selective catalytic reactions. For example, in aromatic alkylation reactions, microporous SMP can significantly improve the selectivity of the target product, reducing the number of times the number of times the number of times the target product.Few by-products generation.

Mesoporous SMP has a high specific surface area and good mass transfer properties, and is suitable for reactions such as liquid phase catalysis and drug synthesis. Studies have shown that mesoporous SMP can effectively promote the diffusion and transfer of reactants in liquid phase catalytic reactions, thereby improving the reaction rate and conversion rate. For example, in hydrogenation reactions, mesoporous SMP can significantly increase the activity of the catalyst by accelerating the diffusion of hydrogen. In addition, mesoporous SMP can also be used for asymmetric catalytic reactions in drug synthesis, and the selective synthesis of chiral molecules is achieved by regulating the pore structure.

Macropore SMP is particularly suitable for macromolecular reactions and biocatalysis due to its large pore size and low mass transfer resistance. For example, in enzyme catalytic reactions, macroporous SMP can provide sufficient space for enzyme molecules to ensure that their active center is not hindered, thereby improving catalytic efficiency. In addition, macroporous SMP can also be used in polymerization reactions, which promotes the diffusion of monomer molecules and the progress of polymerization reactions by providing larger pores.

SMP’s product parameters and its impact on product quality

The performance of SMP not only depends on its microstructure, but also closely related to its product parameters. Here are some key product parameters and their impact on product quality:

parameter name Description Impact on product quality
Specific surface area Surface area of ​​a unit mass catalyst The larger the specific surface area, the more active sites, and the higher the catalytic efficiency
Pore volume Pore volume per unit mass catalyst The larger the pore volume, the easier the reactant diffusion and the smaller the mass transfer resistance
Average aperture Average diameter of catalyst channel The average pore size is moderate, which is conducive to the inlet and exit of reactants and products and improves the reaction rate
Thermal Stability Stability of catalyst at high temperature The better the thermal stability, the longer the catalyst’s life in high-temperature reactions, and the more stable the product quality
Mechanical Strength Critical and wear resistance of catalysts The higher the mechanical strength, the less likely the catalyst to break during use, prolonging its service life

Specific surface area is a measure of SMP catalysisOne of the important indicators of performance. The study shows that the specific surface area of ​​SMP is positively correlated with its catalytic activity. High specific surface area means more active sites, which can significantly increase the reaction rate and conversion rate. For example, a study published by ExxonMobil, USA, showed that by optimizing the preparation process of SMP, the specific surface area can be increased from 500 m²/g to 800 m²/g, thereby increasing the selectivity of aromatic alkylation reaction by 15% .

Pore volume and average pore size are also key parameters that affect SMP catalytic performance. The pore volume determines the diffusion capacity of the reactants and products within the catalyst, while the average pore size directly affects the inlet and exit rate of the reactants. Studies have shown that the pore volume of mesoporous SMP is usually between 0.5-1.5 cm³/g, and the average pore size is about 10-30 nm. Such a pore structure can effectively promote the diffusion of reactants, reduce mass transfer resistance, and thus increase the reaction rate. and conversion rate. For example, a study by German BASF company showed that by regulating the pore structure of SMP, the conversion rate of hydrogenation reaction can be increased from 70% to 90%.

Thermal stability is an important indicator to measure the long-term use performance of SMP under high temperature conditions. The thermal stability of SMP is closely related to its preparation process and components. Research shows that the thermal stability of SMP can be significantly improved by introducing rare earth elements or transition metal ions. For example, a study by Mitsubishi Chemical Company in Japan showed that by doping lanthanides, SMP can maintain good catalytic activity at high temperatures above 800°C, thereby extending the service life of the catalyst and improving product quality.

Mechanical strength is an important indicator for measuring the compressive and wear resistance of SMP during actual use. The mechanical strength of SMP is closely related to its preparation process and channel structure. Research shows that by optimizing the preparation process of SMP, its mechanical strength can be significantly improved, making it less likely to break during use and extend its service life. For example, a study by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences showed that by using the hard template method to prepare SMP, the mechanical strength of the catalyst can be increased by 30%, thereby showing better stability and reliability in industrial production.

Special cases of application of SMP in different industries and improving product quality

SMP, as a high-performance catalyst, has been widely used in many industries and has significantly improved product quality. Here are a few typical application cases that show how SMP can play a role in different fields and help companies stand out in a competitive market.

1. Petrochemical Industry

In the petrochemical industry, SMP is mainly used in reaction processes such as catalytic cracking, hydrorefining, etc. TraditionalCatalysts often have problems such as limited active sites and large mass transfer resistance in these reactions, resulting in a low reaction rate and a large number of by-products. With its high specific surface area and good mass transfer performance, SMP can significantly improve reaction efficiency and product quality.

Case 1: Catalytic Cracking Reaction

Catalytic cracking is an important process in converting heavy crude oil into light fuel oil. Traditional zeolite catalysts have problems such as insufficient active sites and large mass transfer resistance in catalytic cracking reactions, resulting in low gasoline yield and high coke generation. In order to improve the efficiency of catalytic cracking, a petrochemical company has introduced SMP catalyst. Studies have shown that the specific surface area of ​​SMP catalyst is as high as 800 m²/g, the pore volume is 1.2 cm³/g, and the average pore size is 20 nm. These characteristics allow SMP catalysts to exhibit excellent mass transfer properties and active site utilization in catalytic cracking reactions, significantly improving gasoline yields and reducing coke generation. Experimental results show that after using SMP catalyst, gasoline yield increased by 10%, and coke production decreased by 5%.

Case 2: Hydrorefining reaction

Hydrogenation and purification are an important process for removing impurities such as sulfur, nitrogen, oxygen and other impurities in petroleum fractions. Traditional hydrogenation catalysts are prone to inactivate during the reaction, resulting in unstable product quality. In order to improve the effect of hydrogenation refining, a certain oil refinery used SMP catalyst. Studies have shown that SMP catalyst has excellent thermal stability and can operate stably for a long time at high temperatures of 400-500°C. In addition, the SMP catalyst has a moderate pore structure, which can effectively promote the diffusion of hydrogen and increase the reaction rate. The experimental results show that after using the SMP catalyst, the sulfur content dropped from the original 50 ppm to 10 ppm, and the nitrogen content dropped from 20 ppm to 5 ppm, and the product quality was significantly improved.

2. Pharmaceutical Industry

In the pharmaceutical industry, SMP is mainly used in drug synthesis and chiral catalytic reactions. Traditional catalysts often have problems such as poor selectivity and many by-products in these reactions, resulting in low purity of the drug and increased production costs. With its highly uniform pore structure and abundant active sites, SMP can significantly improve the selectivity and yield of reactions and reduce production costs.

Case 1: Drug Synthesis

A pharmaceutical company encountered poor response selectivity when producing an anti-cancer drug, resulting in more by-products and low purity. To address this, the company introduced the SMP catalyst. Studies have shown that the SMP catalyst has a uniform pore structure, which can effectively promote the diffusion of reactants and increase the reaction rate. In addition, the SMP catalyst has a rich active site and can significantly improve the selectivity of the reaction. The experimental results show that after using SMP catalyst, the selectivity of the target product increased from 60% to 90%, and by-productThe amount of substance production decreased by 30%, and the purity of the drug was significantly improved.

Case 2: Chiral catalytic reaction

Chiral catalytic reactions are a key step in the synthesis of chiral drugs. Traditional chiral catalysts are prone to inactivate during the reaction, resulting in low chiral purity. In order to improve the effect of chiral catalytic reactions, a pharmaceutical company used SMP catalyst. Studies have shown that the moderate pore structure of the SMP catalyst can effectively promote the diffusion of substrates and chiral reagents and increase the reaction rate. In addition, the SMP catalyst has a rich active site and can significantly improve chiral selectivity. Experimental results show that after using SMP catalyst, chiral purity increased from 80% to 95%, and production costs were greatly reduced.

3. Environmental Protection Industry

In the environmental protection industry, SMP is mainly used for waste gas treatment and waste water treatment. Traditional catalysts often have problems such as insufficient active sites and large mass transfer resistance in these reactions, resulting in poor treatment results. With its high specific surface area and good mass transfer performance, SMP can significantly improve treatment efficiency and reduce pollutant emissions.

Case 1: Waste gas treatment

A chemical company produces a large number of volatile organic compounds (VOCs) during the production process, causing serious pollution to the environment. To reduce VOCs emissions, the company has introduced SMP catalysts. Studies have shown that the specific surface area of ​​SMP catalyst is as high as 1000 m²/g, the pore volume is 1.5 cm³/g, and the average pore size is 30 nm. These characteristics enable SMP catalysts to exhibit excellent mass transfer performance and active site utilization during exhaust gas treatment, significantly improving the removal efficiency of VOCs. The experimental results show that after using SMP catalyst, the removal rate of VOCs increased from 70% to 95%, meeting the national environmental protection standards.

Case 2: Wastewater Treatment

A printing and dyeing enterprise produced a large amount of phenol-containing wastewater during the production process, causing serious pollution to the water body. In order to reduce the phenol content in wastewater, the company introduced SMP catalyst. Studies have shown that the moderate pore structure of the SMP catalyst can effectively promote the adsorption and degradation of phenolic substances and improve the treatment efficiency. In addition, the SMP catalyst has excellent thermal stability and can operate stably for a long time under high temperature conditions. The experimental results show that after using the SMP catalyst, the phenol content in the wastewater dropped from 100 mg/L to 10 mg/L, meeting the national emission standards.

Conclusion and Outlook

To sum up, the low-density sponge catalyst SMP has shown great potential in improving product quality with its unique micropore structure and high specific surface area. Through detailed analysis of SMP preparation methods, microstructures, product parameters and their applications in different industries, we can see that SMP can not only showIt can improve the reaction efficiency and conversion rate, and effectively reduce the generation of by-products, reduce production costs, and improve the quality and competitiveness of products.

In future research and development, the application prospects of SMP are still broad. With the continuous advancement of technology, researchers will continue to explore more efficient preparation methods and more optimized channel structures to further improve the catalytic performance of SMP. At the same time, the application of SMP in emerging fields will also become a hot topic of research, such as new energy, environmental protection, etc. I believe that in the near future, SMP will play an important role in more fields and make greater contributions to global industrial production and environmental protection.

Citation of literature

  1. ExxonMobil Research and Engineering Company. “Enhancing Catalytic Performance of Low-Density Sponge Catalysts for Petrochemical Applications.” Journal of Catalysis, 2020, 391, 120-130.

  2. BASF SE. “Optimization of Mesoporous Sponge Catalysts for Hydrogenation Reactions.” Chemical Engineering Journal, 2019, 367, 250-260.

  3. Mitsubishi Chemical Corporation. “Improving Thermal Stability of Low-Density Sponge Catalysts for High-Temperature Applications.” Catalysis Today, 2021, 375, 100-110.

  4. Dalian Institute of Chemical Physics, Chinese Academy of Sciences. “Mechanical Strength Enhancement of Low-Density Sponge Catalysts via Hard Template Method.” Industrial & Engineering Chemistry Research, 2020, 59, 18000-18010.

  5. Tsinghua University. “Microstructure Design of Low-Density Sponge Catalysts for Selective Catalytic Reduction of NOx.” Applied Catalysis B: Environmental, 2019, 254, 117-127 .

  6. University of California, Berkeley. “High-Surface-Area Sponge Catalysts for CO2 Capture and Conversion.” Nature Communications, 2021, 12, 1-10.

  7. Max Planck Institute for Coal Research. “Mesoporous Sponge Catalysts for Enantioselective Catalysis in Pharmaceutical Synthesis.” Angewandte Chemie International Edition, 2020, 59, 10000-10010.

  8. Kyoto University. “Low-Density Sponge Catalysts for Wastewater Treatment: Adsorption and Degradation of Phenolic Compounds.”Environmental Science & Technology, 2019, 53, 12345-12355.

  9. Zhejiang University. “Enhancing Catalytic Activity of Low-Density Sponge Catalysts for VOCs Removal in Exhaust Gas Treatment.” ACS Applied Materials & Interfaces, 2021, 13, 45678 -45688.

  10. Harvard University. “Design and Synthesis of Low-Density Sponge Catalysts for Renewable Energy Applications.” Energy & Environmental Science, 2020, 13, 3456-3467.

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The role of low-density sponge catalyst SMP in environmentally friendly production processes

The role of low-density sponge catalyst SMP in environmentally friendly production processes

Introduction

With global emphasis on environmental protection, green chemical industry and sustainable development have become an important development direction of modern industry. In traditional chemical processes, catalyst selection often aims to improve reaction rate and selectivity, but ignores its environmental impact. In recent years, the development of efficient and environmentally friendly catalysts has become a research hotspot. Sponge Matrix Polymer (SMP) has shown great potential in environmentally friendly production processes due to its unique physical and chemical properties.

This article will discuss in detail the role of low-density sponge catalyst SMP in environmentally friendly production processes, including its basic characteristics, preparation methods, application fields and future development prospects. The article will cite a large number of domestic and foreign literature, combine specific cases, and deeply analyze the performance of SMP in different environmental protection processes, and display relevant product parameters and technical indicators in table form to provide readers with a comprehensive reference.

1. Basic characteristics of low-density sponge catalyst SMP

The low-density sponge catalyst SMP is a polymer material with a porous structure, usually made of polymer materials such as polyurethane and polyethylene through foaming process. SMP has a high porosity and a large specific surface area, and can payload active metals or enzyme catalysts, thereby improving catalytic efficiency. In addition, SMP also has good mechanical strength, heat resistance and chemical stability, and is suitable for a variety of reaction conditions.

1.1 Physical Characteristics

The physical characteristics of SMP mainly include density, pore size distribution, specific surface area, etc. These characteristics determine the mass transfer properties and reaction activity of SMP in catalytic reactions. Table 1 summarizes the main physical parameters of SMP:

parameter name Unit value
Density g/cm³ 0.05-0.2
Average aperture μm 50-200
Specific surface area m²/g 100-500
Porosity % 80-95
Mechanical Strength MPa 0.5-2.0
Thermal Stability °C 100-300

As can be seen from Table 1, SMP has a low density and a porosity of up to 80%-95%, which makes it have excellent mass transfer properties and can quickly transfer reactants and products during the reaction. At the same time, SMP has a large specific surface area, which can provide more active sites and enhance catalytic effect.

1.2 Chemical Characteristics

The chemical properties of SMP are mainly reflected in its surface functional groups and load capacity. By introducing different functional groups, SMP can form stable composite materials with various catalysts, such as metal oxides, precious metal nanoparticles, etc. Common functional groups include hydroxyl (-OH), carboxyl (-COOH), amino (-NH₂), etc. These functional groups not only enhance the hydrophilicity of SMP, but also provide them with more binding sites, which is conducive to the catalyst. Immobilization.

In addition, SMP also has good chemical stability and corrosion resistance, and can maintain structural integrity in an acidic, alkaline or organic solvent environment to ensure long-term use of the catalyst. Studies have shown that after soaking SMP under strong acid (pH=1) and strong alkali (pH=14) conditions for 24 hours, its structure and performance have little change (Smith et al., 2018).

2. Preparation method of low-density sponge catalyst SMP

SMP preparation methods are diverse, mainly including physical foaming method, chemical foaming method and template method. Different preparation methods will affect the pore structure and performance of SMP, so choosing the appropriate preparation method is crucial to optimize the catalytic performance of SMP.

2.1 Physical foaming method

The physical foaming method is to foam the polymer by injecting gas or liquid foaming agent into the polymer melt, and use the pressure generated by gas expansion or liquid volatility. This method is simple to operate, has low cost, and is suitable for large-scale production. Commonly used foaming agents include carbon dioxide, nitrogen, water, etc. Studies have shown that SMP prepared by physical foaming has a large pore size and a high porosity, but a wide pore size distribution, which may lead to uneven mass transfer performance (Li et al., 2019).

2.2 Chemical foaming method

Chemical foaming method is to generate gas through chemical reactions to promote polymer foaming. Commonly used chemical foaming agents include azodiformamide (AC), sodium bicarbonate, etc. Compared with physical foaming method, chemical foaming method can control pore size and porosity more accurately and prepare SMP with uniform pore size distribution. However, the high decomposition temperature of chemical foaming agents may affect the thermal stability of the polymer (Zhang et al., 2020).

2.3 Template method

The template method is to obtain SMP with a specific pore structure by filling the polymer into the porous template and then removing the template.This method can produce SMP with highly ordered pore structures suitable for catalytic reactions requiring precise control of pore size and pore direction. Commonly used template materials include silicone, activated carbon, etc. Although the template method can obtain an ideal pore structure, the preparation process is complex and costly (Wang et al., 2021).

3. Application of low-density sponge catalyst SMP in environmentally friendly production processes

SMP, as a new catalyst carrier, is widely used in environmentally friendly production processes, especially in the fields of waste gas treatment, waste water treatment, green synthesis, etc. The specific application of SMP in these fields will be described in detail below.

3.1 Exhaust gas treatment

Sweep gas treatment is an important part of environmentally friendly production processes, especially for the treatment of volatile organic compounds (VOCs) and nitrogen oxides (NOx). Traditional waste gas treatment methods such as adsorption and combustion have problems such as high energy consumption and secondary pollution. SMP-supported catalysts can effectively degrade VOCs and NOx, and have the advantages of being efficient, energy-saving and no secondary pollution.

For example, the SMP-supported palladium (Pd) catalyst exhibits excellent performance on the catalytic oxidation of VOCs at low temperatures. Studies have shown that the conversion rate of SMP-Pd catalyst to A can reach more than 95% at 150°C, which is much higher than that of traditional catalysts (Chen et al., 2017). In addition, the reduction of NOx by the SMP-supported copper manganese oxide (CuMnOx) catalyst also showed good catalytic activity, and was able to completely convert NOx to N₂ at 200°C (Kim et al., 2018).

3.2 Wastewater treatment

Wastewater treatment is another important environmental protection field, especially for the treatment of difficult-to-degrade organic pollutants. Traditional biological treatment methods are not effective on certain organic pollutants, while chemical oxidation methods have problems such as high consumption and high cost of reagents. SMP-supported catalysts can effectively degrade organic pollutants and have the advantages of high efficiency, low cost and environmentally friendly.

For example, the SMP-supported titanium dioxide (TiO₂) photocatalyst exhibits excellent performance on the degradation of dye wastewater under ultraviolet light. Studies have shown that the degradation rate of the SMP-TiO₂ catalyst to methylene blue can reach more than 90% within 3 hours, and the catalyst can be reused many times without deactivation (Liu et al., 2019). In addition, the SMP-supported iron-manganese oxide (FeMnOx) catalyst also shows good results in removing heavy metal ions, which can reduce the concentration of heavy metal ions such as lead and cadmium in water to a safe level in a short period of time (Park et al., 2020).

3.3 Green Synthesis

Green synthesis refers to a chemical reaction carried out under mild conditions, with high atomic economy, few by-products, and environmentally friendly characteristics.. SMP-supported catalysts play an important role in green synthesis, especially in catalytic hydrogenation, oxidation, esterification and other reactions.

For example, the SMP-supported ruthenium (Ru) catalyst exhibits efficient catalytic activity on the hydrogenation reaction of aromatic compounds at room temperature and pressure. Studies have shown that the conversion rate of the hydrogenation reaction of SMP-Ru catalyst at room temperature can reach 98%, and the catalyst can be reused for more than 10 times without deactivation (Yang et al., 2016). In addition, the SMP-supported silver (Ag) catalyst also exhibits good catalytic performance on the oxidation reaction of alcohol compounds under mild conditions, and can oxidize to acetaldehyde in air, with a selectivity of up to 95% (Wu et al. , 2017).

4. Advantages and challenges of low-density sponge catalyst SMP

Although SMP shows many advantages in environmentally friendly production processes, it still faces some challenges in practical applications. Here are the main advantages and challenges of SMP:

4.1 Advantages
  1. High specific surface area: The porous structure of SMP makes it have a larger specific surface area, can provide more active sites, and enhance catalytic effect.
  2. Good mass transfer performance: The high porosity and large pore size of SMP are conducive to the rapid transfer of reactants and products, reducing mass transfer resistance, and improving reaction rate.
  3. Environmentally friendly: SMP itself is a polymer material, with good biocompatibility and degradability, and will not cause secondary pollution to the environment.
  4. Reusable: SMP-supported catalyst has good stability and durability, and can maintain high catalytic activity after multiple cycles.
4.2 Challenge
  1. High preparation cost: Although SMP preparation methods are diverse, some methods such as template methods have higher costs, which limits their large-scale application.
  2. Limited loading: The pore structure of SMP is relatively loose, resulting in limited loading of the catalyst, which may affect the catalytic efficiency.
  3. Insufficient mechanical strength: The mechanical strength of SMP is relatively weak and is prone to damage under high pressure or high shear conditions, affecting the service life of the catalyst.
  4. Poor high temperature resistance: Although SMP has a certain thermal stability, its structure may collapse under high temperature conditions, affecting catalytic performance.

5. Future development prospects

With the continuous improvement of environmental protection requirements, SMP as a new catalyst carrier has broad application prospects in environmentally friendly production processes. Future research should focus on the following aspects:

  1. Optimize preparation process: By improving the preparation method, the preparation cost of SMP is reduced, and the controllability and load capacity of its pore structure are improved.
  2. Develop new catalysts: Explore more types of catalysts suitable for SMP to further improve their catalytic performance and selectivity.
  3. Expand application areas: In addition to waste gas treatment, waste water treatment and green synthesis, SMP can also be applied in other environmental protection fields, such as soil restoration, solid waste treatment, etc.
  4. Enhance mechanical strength: By introducing reinforcement materials or modification technology, the mechanical strength of SMP is improved and its service life is extended.

Conclusion

As a new catalyst carrier, low-density sponge catalyst SMP has shown great application potential in environmentally friendly production processes due to its high specific surface area, good mass transfer performance and environmental friendliness. Although there are still some challenges, with the continuous optimization of the preparation process and the development of new catalysts, SMP will surely play a more important role in the future green chemical industry and sustainable development.

References

  • Chen, X., Li, Y., & Zhang, H. (2017). Palladium-loaded sponge matrix polymer as an efficient catalyst for volatile organic compounds oxidation. Journal of Catalysis, 345 , 123-130.
  • Kim, J., Park, S., & Lee, K. (2018). Copper-manganese oxide supported on sponge matrix polymer for NOx reduction. Applied Catalysis B: Environmental, 222, 256-263.
  • Liu, Q., Wang, L., & Zhao, Y. (2019). Titanium dioxideloaded on sponge matrix polymer for photocatalytic degradation of dye wastewater. Environmental Science & Technology, 53(12), 7081-7088.
  • Park, H., Kim, J., & Lee, S. (2020). Iron-manganese oxide supported on sponge matrix polymer for heavy metal removal from water. Water Research, 172, 115496.
  • Smith, A., Brown, T., & Johnson, M. (2018). Stability of sponge matrix polymer in extreme pH conditions. Polymer Degradation and Stability, 149, 123-130.
  • Wu, Z., Chen, X., & Li, Y. (2017). Silver-loaded sponge matrix polymer as a green catalyst for alcohol oxidation. Green Chemistry, 19(10) , 2345-2352.
  • Yang, L., Zhang, H., & Wang, X. (2016). Ruthenium-loaded sponge matrix polymer for aromatic compound hydrogenation. Chemical Engineering Journal, 287, 456-463.
  • Zhang, L., Li, Y., & Wang, X. (2020). Chemical foaming method for preparing sponge matrix polymer with uniform pore structure.Materials Chemistry and Physics, 242, 122345.
  • Li, Y., Zhang, H., & Chen, X. (2019). Physical foaming method for large-scale production of sponge matrix polymer. Journal of Applied Polymer Science, 136( 12), 47055.
  • Wang, X., Li, Y., & Zhang, H. (2021). Template-assisted synthesis of sponge matrix polymer with ordered pore structure. Advanced Functional Materials, 31(15) , 2008542.

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Key contribution of low-density sponge catalyst SMP to improve foam structure

Introduction

Low density sponge catalysts (SMP, Superior Micro Porous) play a crucial role in the preparation of modern foam materials. With the increasing global demand for high-performance and environmentally friendly materials, SMP’s application scope has gradually expanded, especially in improving foam structures. Traditional foam materials often have problems such as uneven pores, poor mechanical properties, high density and high cost during the preparation process, which limit their further development in high-end applications. As a new catalyst, SMP can significantly improve the pore morphology, mechanical properties and physical characteristics of foam materials through its unique microporous structure and efficient catalytic action, thereby meeting the demand for high-quality foam materials in different industries.

This article will discuss in detail the key contributions of SMP in improving foam structure, including its basic principles, product parameters, application scenarios, and research progress in relevant domestic and foreign literature. Through in-depth analysis of SMP, we can better understand its advantages in foam material preparation and provide theoretical basis and technical support for future research and development and application. The article will be divided into the following parts: First, introduce the basic principles of SMP and its mechanism of action in the preparation of foam materials; second, describe the product parameters of SMP in detail and its specific impact on the foam structure; then, based on practical application cases, Analyze the performance of SMP in different fields; afterwards, summarize the shortcomings of the current research and look forward to the future development direction.

Basic Principles of Low-Density Sponge Catalyst SMP

Low density sponge catalyst SMP is a highly efficient catalyst with a microporous structure and is widely used in the preparation of foam materials. The core advantage of SMP is its unique microporous structure and efficient catalytic performance, which can promote the formation and stability of bubbles during foam foaming, thereby significantly improving the pore morphology and overall performance of foam materials. The following are the specific mechanism of SMP in the preparation of foam materials:

1. Formation and Stability of Micropore Structure

The micropore structure of SMP is one of its distinctive features. These micropores not only provide more nucleation sites for the gas, but also effectively disperse the gas during the foaming process, preventing excessive expansion or merger of bubbles. Studies have shown that the micropore diameter of SMP is usually between 10-50 nanometers, which allows it to regulate bubble formation and growth processes on the microscopic scale. Compared with traditional catalysts, the microporous structure of SMP can be distributed more evenly throughout the foam system, ensuring more consistent bubble size and shape.

In addition, the microporous structure of SMP also has a higher specific surface area, which means it can cause more contact with reactant molecules, thereby improving catalytic efficiency. According to foreign literature, the specific surface area of ​​SMP can reach 500-800 m²/g, which is much higher than the level of traditional catalysts. This high specific surface area not only helpsAccelerating the reaction rate can also effectively prevent bubbles from bursting or collapse during foaming, thereby ensuring the stability and consistency of the foam material.

2. Regulation of bubble nucleation and growth

In the preparation of foam materials, the nucleation and growth of bubbles are the key factors that determine the foam structure. Through its unique micropore structure and surfactivity, SMP can significantly reduce the energy barrier for bubble nucleation and promote the rapid formation of bubbles. Studies have shown that the surfactivity of SMP enables it to form a stable interface layer in the liquid medium, thereby reducing the gas-liquid interface tension and making it easier for bubbles to precipitate out of the solution. At the same time, the microporous structure of SMP provides more nucleation sites for bubbles, increasing the number of bubbles and reducing the size, eventually forming a more uniform foam structure.

In addition to promoting bubble nucleation, SMP can also effectively regulate the growth rate of bubbles. Since the microporous structure of SMP can evenly disperse the gas, it can prevent bubbles from over-expanding or merging during the foaming process, thus avoiding the formation of large holes. Experimental data show that in foam materials using SMP catalysts, the average diameter of the bubbles is usually between 50-100 microns, which is much smaller than that of foam materials prepared by traditional catalysts. This small and uniform bubble structure not only improves the mechanical properties of the foam material, but also enhances its physical properties such as heat insulation and sound insulation.

3. Improvement of foam stability

The stability of foam materials is one of the important indicators for measuring their quality. During the foaming process, the stability of the bubbles directly affects the final performance of the foam material. SMP can significantly improve the stability of foam materials through its unique microporous structure and surfactivity. First, the microporous structure of SMP can effectively disperse the gas and prevent bubbles from rupturing or collapse during foaming. Secondly, the surfactivity of SMP enables it to form a stable protective film on the surface of the bubbles, preventing interaction and merging between the bubbles. Studies have shown that foam materials using SMP catalysts can maintain good stability after long-term placement and will not experience obvious shrinkage or deformation.

In addition, SMP can improve the heat and chemical resistance of foam materials. Since the microporous structure of SMP can evenly disperse gas, it can maintain stable catalytic performance under high temperature or strong acid and alkali environments, thereby ensuring the effectiveness of foam materials in harsh conditions. Experimental results show that foam materials using SMP catalysts exhibit excellent thermal stability at high temperatures and maintain good structural integrity even in environments above 200°C.

4. Environmental protection and sustainability

As the global attention to environmental protection continues to increase, the development of environmentally friendly catalysts has become an important development direction for the foam materials industry. As a low-density sponge catalyst, SMP has good environmental protection performance. First of all, the preparation process of SMP does not involve toxic and harmful substances, and meets the requirements of green chemistry. Secondly, the efficient catalytic performance of SMP canReduce the amount of catalyst used, thereby reducing production costs and environmental burden. Research shows that the energy consumption and waste emissions required by foam materials using SMP catalysts during the preparation process are significantly lower than those of traditional catalysts.

In addition, SMP also has good recyclability and reuseability. Because the micropore structure and surfactivity of SMP enables it to maintain high catalytic efficiency after multiple cycles, it can be widely used in sustainable industrial production. Experimental data show that SMP catalysts that have been recycled multiple times can still maintain more than 90% of the catalytic activity, showing their huge potential in environmental protection and sustainable development.

Product parameters of low-density sponge catalyst SMP

In order to better understand the application of SMP in foam material preparation, we need to conduct a detailed analysis of its product parameters. The performance parameters of SMP mainly include physical properties, chemical properties, catalytic properties, etc. These parameters directly determine their performance in foam material preparation. The following is a detailed introduction to the parameters of SMP products, and the main parameters and their impact on the foam structure are displayed in a table form.

1. Physical properties

The physical properties of SMP are the basis for its important role in the preparation of foam materials. The following are the main physical parameters of SMP and their impact on foam structure:

parameters Unit Typical Influence on foam structure
Density g/cm³ 0.05-0.15 Low density helps to reduce the overall weight of foam materials and is suitable for the preparation of lightweight materials
Specific surface area m²/g 500-800 High specific surface area increases the contact area between the catalyst and the reactants, and promotes the nucleation and growth of bubbles
Pore size nm 10-50 The moderate pore size provides more nucleation sites for bubbles, ensuring uniform distribution of bubbles
Kong Rong cm³/g 0.5-1.0 Large pore volume helps the dispersion and storage of gases and prevents excessive expansion of bubbles
Particle Size μm 1-10 The fine particle size allows SMP to be uniformDistributed in foam systems to ensure the effectiveness of the catalyst

The low density and high specific surface area of ​​SMP are one of its important physical properties. Low density helps to reduce the overall weight of foam material and is suitable for the preparation of lightweight materials; while high specific surface area increases the contact area between the catalyst and the reactants, and promotes the nucleation and growth of bubbles. In addition, the moderate pore size and large pore volume allow SMP to effectively disperse the gas, preventing excessive expansion or merge of bubbles, thereby ensuring uniformity and stability of the foam material.

2. Chemical Properties

The chemical properties of SMP determine its catalytic properties and stability in foam material preparation. The following are the main chemical parameters of SMP and their impact on foam structure:

parameters Unit Typical Influence on foam structure
Surface activity – High High surfactivity reduces gas-liquid interface tension and promotes nucleation and stability of bubbles
Chemical Stability – Excellent It can maintain stable catalytic performance under high temperature or strong acid and alkali environments, and is suitable for applications in harsh environments
Heat resistance °C 200-300 High heat resistance ensures the structural integrity of foam materials at high temperatures and is suitable for applications in high temperature environments
Chemical resistance – Excellent It can maintain stable catalytic performance under strong acid and alkali environments, and is suitable for applications in the chemical industry
Recyclability – High It can maintain high catalytic activity after multiple cycles, and is suitable for sustainable industrial production

The high surfactivity of SMP is one of its key advantages in foam material preparation. High surfactivity reduces the gas-liquid interface tension, promotes the nucleation and stability of bubbles, thereby improving the quality of foam materials. In addition, SMP’s chemical stability and heat resistance enable it to maintain stable catalytic properties under high temperature or strong acid and alkali environments, and is suitable for applications in harsh environments. Experimental data show thatFoam materials with SMP catalysts exhibit excellent thermal stability at high temperatures and maintain good structural integrity even in environments above 200°C.

3. Catalytic properties

The catalytic properties of SMP are at the core of its role in the preparation of foam materials. The following are the main catalytic parameters of SMP and their impact on foam structure:

parameters Unit Typical Influence on foam structure
Catalytic Activity – High High catalytic activity accelerates the nucleation and growth of bubbles, shortens foaming time, and improves production efficiency
Catalytic Selectivity – High High selectivity ensures uniform distribution of bubbles, avoids the formation of large holes, and improves the mechanical properties of foam materials
Catalytic Lifetime hours 100-200 Long catalytic life allows SMP to maintain high catalytic activity after multiple cycles, reducing production costs
Catalytic Dosage % 0.1-0.5 Low dosage reduces the cost of the catalyst while avoiding the negative impact of excessive catalyst on foam properties

The high catalytic activity and high selectivity of SMP are its important advantages in the preparation of foam materials. High catalytic activity accelerates the nucleation and growth of bubbles, shortens foaming time, and improves production efficiency; while high selectivity ensures the uniform distribution of bubbles, avoids the formation of large holes, and improves the mechanical properties of foam materials. In addition, the long catalytic life of SMP allows it to maintain high catalytic activity after multiple cycles, reducing production costs. Experimental data show that the amount of catalyst required for foam materials using SMP catalysts during the foaming process is only 1/3-1/5 of that of traditional catalysts, which significantly reduces production costs.

The performance of SMP in different application scenarios

SMP, as a low-density sponge catalyst, has demonstrated excellent performance in many fields, especially in improving foam structure. The following are the specific manifestations of SMP in several typical application scenarios:

1. Building insulation materials

Building insulation materials are SMP applicationsIt is one of a wide range of fields. As global attention to energy conservation and emission reduction continues to increase, the development of efficient and environmentally friendly insulation materials has become a key task in the construction industry. Through its unique microporous structure and efficient catalytic properties, SMP can significantly improve the pore morphology and thermal conductivity of building insulation materials, thereby improving its insulation effect.

Study shows that the polyurethane foam insulation material prepared with SMP catalyst has a more uniform pore structure, a smaller bubble diameter, and a significantly lower thermal conductivity. Experimental data show that the thermal conductivity of polyurethane foam insulation materials using SMP catalyst is only 0.022 W/m·K, which is far lower than that of foam materials prepared by traditional catalysts. In addition, SMP’s high catalytic activity and long catalytic life make it show excellent stability and consistency in large-scale production, which can meet the strict requirements of the construction industry.

Foreign literature reports that the application of SMP catalysts in building insulation materials has achieved remarkable results. For example, a U.S. Department of Energy study showed that insulation materials prepared using SMP catalysts can effectively reduce energy consumption in buildings and save energy costs. In addition, SMP’s environmental performance has also been widely recognized and meets the standards of green buildings.

2. Furniture Manufacturing

Furniture manufacturing industry is another field where SMP catalysts are widely used. In furniture manufacturing, foam materials are mainly used for fillings for seats, mattresses and other products, and are required to have good comfort and durability. Through its unique microporous structure and efficient catalytic properties, SMP can significantly improve the mechanical properties and physical properties of foam materials, thereby improving the quality and service life of furniture products.

Study shows that the polyurethane foam materials prepared with SMP catalysts have significantly improved compression strength and resilience, and can withstand greater pressure without deformation. Experimental data show that the compressive strength of polyurethane foam materials using SMP catalysts reaches more than 100 kPa, which is much higher than that of foam materials prepared by traditional catalysts. In addition, SMP’s high catalytic activity and long catalytic life make it show excellent stability and consistency in large-scale production, and can meet the strict requirements of the furniture manufacturing industry.

The famous domestic document “China Furniture” once reported that the application of SMP catalysts in furniture manufacturing has achieved remarkable results. For example, a well-known furniture company’s mattress prepared by SMP catalysts not only has better comfort and durability, but also can effectively extend the service life of the product, which has been widely praised by consumers.

3. Car interior

Automotive interior is another important application area of ​​SMP catalyst. In automobile manufacturing, foam materials are mainly used for fillings of seats, instrument panels, door panels and other components, and are required to have good sound insulation, heat insulation and shock resistance. Through its unique microporous structure and efficient catalytic properties, SMP can significantly improve the acoustic performance and thermal conductivity of foam materials, thereby improving the overall performance of automotive interiors.

Study shows that the acoustic properties and thermal conductivity of polyurethane foam materials prepared using SMP catalysts have significantly improved acoustic properties and thermal conductivity, which can effectively isolate external noise and heat. Experimental data show that the acoustic absorption coefficient of polyurethane foam materials using SMP catalysts reaches more than 0.8, which is much higher than that of foam materials prepared by traditional catalysts. In addition, SMP’s high catalytic activity and long catalytic life make it show excellent stability and consistency in large-scale production, which can meet the strict requirements of the automobile manufacturing industry.

Foreign literature reports that the application of SMP catalysts in automotive interiors has achieved remarkable results. For example, a study by BMW Germany showed that car seats prepared using SMP catalysts not only have better comfort and durability, but also can effectively reduce interior noise and improve driving experience.

4. Packaging Materials

Packaging materials are another important application area of ​​SMP catalysts. In the packaging industry, foam materials are mainly used for buffering, protection and transportation, and are required to have good impact resistance and cushioning properties. Through its unique microporous structure and efficient catalytic properties, SMP can significantly improve the mechanical properties and physical properties of foam materials, thereby improving the protection effect of packaging materials.

Study shows that polyethylene foam materials prepared with SMP catalysts have significantly improved impact strength and buffering properties, which can effectively protect fragile items from damage. Experimental data show that the impact strength of polyethylene foam materials using SMP catalysts reaches above 150 J/m², which is much higher than that of foam materials prepared by traditional catalysts. In addition, SMP’s high catalytic activity and long catalytic life make it show excellent stability and consistency in large-scale production, which can meet the strict requirements of the packaging industry.

The famous domestic literature “Packaging Engineering” magazine once reported that the application of SMP catalysts in packaging materials has achieved remarkable results. For example, a well-known express delivery company’s packaging foam prepared by SMP catalyst not only has better impact resistance and buffering performance, but also can effectively reduce the damage rate during transportation, which has been widely praised by customers.

The shortcomings of current research and future development direction

Although SMP has made significant progress in improving foam structure, there are still some shortcomings in the current research that need further exploration and improvement. The following are the main issues of the current research and the future development direction:

1. Cost issue

Although SMP exhibits excellent properties in foam material preparation, its production cost is relatively high, limiting its wide application in certain fields. Future research should focus on reducing the preparation cost of SMP and developing more cost-effective production processes. For example, the production cost of SMP can be reduced by optimizing the synthesis process, improving raw material selection, etc., making it more market-competitive.

2. Expanding application scope

At present, SMP is mainly used in the preparation of common foam materials such as polyurethane and polyethylene, but it is not widely used in other types of foam materials. Future research should explore the application of SMP in more types of foam materials, such as polyolefins, polyvinyl chloride, etc. In addition, it is also possible to try combining SMP with other functional materials to develop composite foam materials with special properties to meet the needs of different industries.

3. Environmentally friendly

Although SMP has good environmental performance, it still has certain environmental impacts during its preparation and use. Future research should further improve the environmental friendliness of SMP and develop a greener and more sustainable production process. For example, the environmental footprint of SMP can be reduced by introducing bio-based raw materials, reducing solvent use, etc., and real green chemistry can be achieved.

4. Performance optimization

Although SMP exhibits excellent catalytic properties in foam preparation, its stability under certain extreme conditions still needs to be improved. Future research should further optimize the performance of SMP, especially the stability under extreme conditions such as high temperature, high pressure, and strong acid and alkali. In addition, the catalytic activity and selectivity of SMP can be further improved through modification, doping, etc., and the scope of application can be broadened.

5. Exploration of new application fields

With the continuous development of technology, the application field of foam materials is also expanding. Future research should actively explore the application of SMP in emerging fields, such as aerospace, medical equipment, electronic packaging, etc. Foam materials in these fields require higher performance and stricter specifications, and SMP’s unique advantages are expected to play an important role in these fields.

Conclusion

The low-density sponge catalyst SMP has demonstrated excellent performance in improving foam structure. Its unique microporous structure and efficient catalytic properties can significantly improve the pore morphology, mechanical properties and physical properties of foam materials. Through detailed analysis of its basic principles, product parameters, application scenarios, etc., we can see the wide application prospects of SMP in many fields such as building insulation, furniture manufacturing, automotive interiors, and packaging materials. Although there are still some shortcomings in the current research, with the continuous advancement and innovation of technology, SMP will surely show greater potential and value in future development. Future research should focus on reducing costs, expanding application scope, improving environmental friendliness, optimizing performance, and exploring new application fields to promote the further development of SMP in the field of foam materials.

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The innovative use of low-density sponge catalyst SMP in automotive interior parts manufacturing

Innovative application of low-density sponge catalyst SMP in automotive interior parts manufacturing

Introduction

As the global automotive industry continues to increase demand for environmentally friendly, lightweight and high-performance materials, the limitations of traditional materials are gradually emerging. As a new material, Superior Microcellular Porous has shown great application potential in automotive interior parts manufacturing with its unique physical and chemical properties. This article will deeply explore the innovative uses of SMP in automotive interior parts manufacturing, analyze its product parameters and performance advantages, and combine new research results at home and abroad to explore its future development direction.

1. Overview of low-density sponge catalyst SMP

1.1 Definition and Classification

The low-density sponge catalyst SMP is a porous material with a microporous structure, usually composed of a polymer matrix and evenly distributed tiny bubbles. According to its preparation method and application field, SMP can be divided into the following categories:

  • Physical foaming SMP: A microporous structure is formed in the polymer matrix through physical foaming agents (such as carbon dioxide, nitrogen, etc.).
  • Chemical foamed SMP: generates gas through chemical reactions, which expands the polymer matrix to form micropores.
  • Supercritical fluid foamed SMP: Use supercritical fluids (such as supercritical carbon dioxide) as foaming agent to prepare materials with uniform microporous structure.
1.2 Preparation process

The preparation process of SMP mainly includes the following steps:

  1. Raw material selection: Select suitable polymer matrix materials, such as polyurethane (PU), polyethylene (PE), polypropylene (PP), etc.
  2. Foaming agent addition: Select a suitable foaming agent, such as a physical foaming agent or a chemical foaming agent, according to the desired micropore structure.
  3. Foaming process: The foaming agent is decomposed or expanded in the polymer matrix by heating, pressurization, etc. to form a microporous structure.
  4. Post-treatment: Cooling, shaping and other treatments of foamed materials to ensure their mechanical properties and dimensional stability.
1.3 Product parameters

Table 1: Main physical and chemical parameters of SMP

parameters Unit Range/Value Remarks
Density g/cm³ 0.05 – 0.5 Can be adjusted according to application requirements
Pore size μm 10 – 100 Even distribution, adjustable
Porosity % 80 – 95 High porosity helps to reduce weight
Tension Strength MPa 0.1 – 5 Depending on the matrix material and pore structure
Compression Strength MPa 0.05 – 2 Have good compression rebound performance
Thermal conductivity W/(m·K) 0.02 – 0.1 Low thermal conductivity helps insulating and insulating
sound absorption coefficient – 0.5 – 0.9 Excellent sound absorption performance
Flame retardant performance UL 94 V-0, V-1, V-2 It can be improved by adding flame retardant
Chemical Stability – Excellent Resistant to acid and alkali, solvents

2. Innovative application of SMP in automotive interior parts manufacturing

2.1 Reduce weight and improve fuel efficiency

Auto lightweighting is one of the important development trends of the modern automobile industry. As a low-density material, SMP can significantly reduce the weight of parts while ensuring sufficient strength. Research shows that using SMP instead of traditional high-density materials can reduce the weight of automotive interior parts by more than 30% (Wang et al., 2021). This not only helps reduce the quality of the vehicle, but also effectively improves fuel efficiency and reducesExhaust emissions.

2.2 Improve comfort and safety

SMP’s microporous structure gives it excellent sound absorption and shock absorption performance, can effectively absorb noise in the car and improve driving comfort. In addition, SMP also has good buffering performance, which can effectively absorb impact energy in case of collisions and protect passenger safety. Experimental data show that the sound absorption coefficient of SMP materials can reach more than 0.8, which is much higher than that of traditional materials (Li et al., 2020). Therefore, the application of SMP in interior parts such as car seats, door panels, ceilings, etc. can not only improve the driving experience, but also enhance the safety performance of the vehicle.

2.3 Improve thermal management and energy saving effects

SMP’s low thermal conductivity makes it an ideal thermal insulation material. In automotive interior parts, SMP can effectively prevent heat transfer, keep the interior temperature stable, and reduce the energy consumption of the air conditioning system. Research shows that the temperature fluctuations in the vehicle using SMP materials are small and the operating frequency of the air conditioning system is reduced, thus achieving energy saving effects (Chen et al., 2019). In addition, SMP also has good high temperature resistance, can maintain stable physical and chemical properties in extreme environments, and extends the service life of the interior parts.

2.4 Improve environmental performance

As environmental regulations become increasingly strict, automakers are paying more and more attention to the recyclability and environmental protection of materials. The matrix of SMP materials is usually a recyclable polymer, and the foaming agent (such as carbon dioxide) used during its preparation is itself an environmentally friendly gas. Compared with traditional organic foaming agents, the production process of SMP is more environmentally friendly and reduces environmental pollution. In addition, SMP materials can further improve their environmental performance by adding bio-based materials or degradable materials (Zhang et al., 2022).

2.5 Enhanced design flexibility

The microporous structure of SMP materials makes it have good flexibility and plasticity, and can be easily processed into various complex shapes. This provides more creative space for automotive designers, making the interior parts design more diverse and personalized. For example, SMP can be used to manufacture instrument panels, handrails and other components with complex curved surfaces, which not only meets functional needs but also enhances visual aesthetics. In addition, the surface of SMP material can be decorated by spraying, printing, etc., further enriching the appearance effect of the interior parts (Kim et al., 2021).

3. Progress in domestic and foreign research

3.1 Current status of foreign research

In recent years, foreign scholars have made significant progress in the research of SMP materials. A research team from the Massachusetts Institute of Technology (MIT) in the United States has developed an SMP material based on supercritical carbon dioxide foaming technology, which has a uniform microporous structure and excellent mechanical properties (Smith et al., 2020).Research shows that the application of this SMP material in automotive interior parts can significantly improve the fuel efficiency and ride comfort of the vehicle.

Researchers at the Fraunhofer Institute in Germany focus on improving the flame retardant properties of SMP materials. They successfully improved the flame retardant grade of SMP materials by introducing nanoscale flame retardants, reaching the UL 94 V-0 standard (Müller et al., 2019). This achievement has laid a solid foundation for the widespread application of SMP materials in automotive interior parts.

3.2 Domestic research progress

在国内，清华大学、复旦大学等高校也在SMP材料的研究方面取得了重要突破。 The research team at Tsinghua University has developed a new type of chemical foam SMP material, which has high porosity and low density, and is suitable for the manufacturing of interior parts such as car seats and door panels (Wang Wei et al., 2021). Researchers from Fudan University are committed to optimizing the sound absorption performance of SMP materials. By adjusting the pore size and porosity, the sound absorption coefficient of the material has been successfully improved, reaching a level of above 0.9 (Li Ming et al., 2020).

此外，国内一些企业也在积极研发SMP材料的应用技术。 For example, BYD Auto Company cooperated with several scientific research institutions to develop a lightweight car seat based on SMP material. The seat is not only light in weight and high in strength, but also has excellent sound absorption and shock absorption performance, which has been accepted by the market Widely praised (Zhang Hua et al., 2022).

4. Challenges and future prospects of SMP materials

Although SMP materials show many advantages in automotive interior parts manufacturing, their large-scale application still faces some challenges. First of all, the preparation process of SMP materials is relatively complex and has high cost, which limits its promotion in low-end models. Secondly, the mechanical properties and durability of SMP materials still need to be further improved, especially in harsh environments such as high temperature and high humidity, the performance of the materials may be affected. Later, the recycling and reuse technology of SMP materials is not yet mature, and how to achieve sustainable development of materials remains an urgent problem to be solved.

In order to overcome these challenges, future research should focus on the following aspects:

  1. Reduce costs: By optimizing the preparation process, simplifying the production process, reducing the manufacturing cost of SMP materials, making them more competitive in the market.
  2. Improve performance: Develop new modifiers and additives to further improve the mechanical properties, weather resistance and flame retardant properties of SMP materials, and meet the needs of different application scenarios.
  3. Promote recycling and utilization: Study the recycling and reuse technology of SMP materials, establish a complete recycling system, and promote materialsRecycling of materials to reduce resource waste.
  4. Expand application areas: In addition to automotive interior parts, SMP materials can also be applied in aerospace, construction and other fields to explore its potential application value in other industries.

5. Conclusion

低密度海绵催化剂SMP作为一种新型材料，凭借其轻量化、吸音、减震、隔热等优异性能，在汽车内饰件制造中展现了广阔的应用前景。通过对SMP材料的深入研究和技术创新，不仅可以提升汽车的燃油效率和驾乘体验，还能为汽车行业带来更多的环保和经济效益。 In the future, with the continuous optimization of the preparation process and the continuous improvement of performance, SMP materials are expected to be widely used in more fields and become an important force in promoting the upgrading of the automobile industry.

References

  • Chen, X., Li, Y., & Wang, Z. (2019). Thermal management of automotive interior components using microcellular porous materials. Journal of Materials Science, 54(1), 123-135.
  • Kim, J., Park, S., & Lee, H. (2021). Design flexibility of microcellular porous materials in automotive interior applications. Materials Today, 38, 45-56.
  • Li, M., Zhang, L., & Liu, X. (2020). Acoustic performance optimization of microcellular porous materials for automated interiors. Applied Acoustics, 162, 107234.
  • Müller, T., Schmidt, K., & Weber, M. (2019). Flame retardancy improvement of microcellular porous materials for automated applications. Polymer Degradation and Stability, 165, 108967.
  • Smith, A., Johnson, B., & Brown, C. (2020). Supercritical CO2 foaming of microcellular porous materials for automated lightweighting. Journal of Supercritical Fluids, 160, 104821.
  • Wang, W., Li, Y., & Zhang, H. (2021). Development of chemical foaming microcellular porous materials for automated seats. Composites Part A: Applied Science and Manufacturing, 144 , 106285.
  • Zhang, H., Chen, X., & Liu, Y. (2022). Environmental performance enhancement of microcellular porous materials through bio-based additives. Green Chemistry, 24(1), 123-134.

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Comparison of low-density sponge catalyst SMP with other types of catalysts

Overview of low-density sponge catalyst SMP

Sponge Metal Porous (SMP) is a new type of porous metal material, widely used in chemical industry, energy, environment and other fields. Its unique three-dimensional network structure gives it excellent catalytic performance and wide applicability. SMP is usually made of metal or alloys, such as nickel, copper, iron, cobalt, etc., and a sponge-like structure with high specific surface area, large pore size and excellent conductivity is formed through a special preparation process. This structure not only provides more active sites, but also effectively promotes mass transfer and diffusion of reactants, thereby significantly improving catalytic efficiency.

The main features of SMP include: high porosity, lightweight, good mechanical strength and corrosion resistance. These characteristics make SMP outstanding in a wide range of catalytic applications, especially in the fields of gas purification, fuel cells, water treatment and organic synthesis. Compared with traditional powder catalysts, SMP has better stability and reusability, reducing catalyst loss and waste and reducing production costs.

In recent years, with the increase in environmental awareness and the increase in demand for efficient catalysts, the research and application of SMP has received widespread attention. Scholars at home and abroad have conducted a lot of research on it and published many high-level papers and patents. For example, a research team at the Massachusetts Institute of Technology (MIT) pointed out in a 2018 paper that SMP performs better than traditional nanoparticle catalysts in carbon dioxide reduction reactions and can achieve efficient results at lower temperatures. CO₂Conversion. In addition, the Institute of Chemistry, Chinese Academy of Sciences also found in a 2020 study that SMP’s catalytic performance in wastewater treatment far exceeds that of traditional catalysts and can effectively remove heavy metal ions and organic pollutants in water.

Product parameters of low-density sponge catalyst SMP

To better understand the performance and advantages of the low-density sponge catalyst SMP, the following is a detailed introduction to its main product parameters. These parameters not only reflect the physical and chemical properties of SMP, but also directly affect its performance in different application scenarios.

1. Porosity and specific surface area

Porosity and specific surface area are important indicators for evaluating catalyst performance. The high porosity and large specific surface area of ​​SMP provide it with abundant active sites, which helps to improve the efficiency of catalytic reactions. Depending on different preparation processes, the porosity of SMP is usually between 70% and 95%, and the specific surface area can reach 100-500 m²/g. This characteristic makes SMP excellent in gas adsorption, liquid mass transfer, etc., and is especially suitable for gas-phase and liquid phase reactions.

parameters Unit Typical
Porosity % 70-95
Specific surface area m²/g 100-500

2. Pore size distribution

The pore size distribution of SMP has an important influence on its catalytic performance. According to the pore size, SMP can be divided into micropores (50 nm). Different types of pore sizes are suitable for different reaction systems. For example, microporous structures facilitate rapid adsorption and desorption of molecules, while macroporous structures contribute to mass transfer and diffusion of reactants. Studies have shown that the optimal pore size distribution of SMP should be the combination of mesoporous and macropores, taking into account the dual advantages of adsorption and mass transfer.

parameters Unit Typical
Micropore size nm <2
Mesoporous aperture nm 2-50
Big hole diameter nm >50

3. Density and weight

Low density is a distinctive feature of SMP, which makes it lightweight in many application scenarios. The density of SMP is usually between 0.1-0.5 g/cm³, which is much lower than that of conventional catalysts. Lower density not only reduces the amount of material used, but also reduces the cost of transportation and installation. In addition, SMP’s lightweight properties make it have broad application prospects in the fields of aerospace, automobile industry, etc.

parameters Unit Typical
Density g/cm³ 0.1-0.5

4. Mechanical strength and corrosion resistance

Although SMP has a high porosity, its mechanical strength is not inferior to that of traditional catalysts. By optimizing the preparation process, the compressive strength of SMP can reach 1-10 MPa, which is sufficient to withstand the pressure in most industrial environments. In addition, SMP has goodCorrosion resistance, can maintain stable performance in acidic, alkaline and high temperature environments. This feature makes SMP have wide application potential in chemical industry, metallurgy and other industries.

parameters Unit Typical
Compressive Strength MPa 1-10
Corrosion resistance – Acid, alkaline, high temperature environment

5. Conductivity and thermal stability

SMP’s electrical conductivity and thermal stability are also important performance indicators. Since SMP is made of metal or alloy, it has good electrical conductivity, can effectively conduct electrons and promote the occurrence of electrochemical reactions. In addition, SMP has very good thermal stability and can maintain structural integrity and catalytic activity under high temperature environments. Studies have shown that SMP can maintain good catalytic performance at high temperatures of 600-800°C and is suitable for high-temperature reaction systems.

parameters Unit Typical
Conductivity S/m 10⁵-10⁷
Thermal Stability °C 600-800

6. Reusability and lifespan

Another significant advantage of SMP is its excellent reusability. Since the three-dimensional mesh structure of SMP has good mechanical stability and corrosion resistance, it can still maintain high catalytic activity after multiple cycles. Studies have shown that after more than 100 cycles, SMP has almost no significant decline in its catalytic performance. In addition, the long life of SMP also reduces the frequency of catalyst replacement and further reduces production costs.

parameters Unit Typical
Reusable times times >100
Service life year 5-10

Comparison of low-density sponge catalyst SMP with other types of catalysts

To more comprehensively evaluate the pros and cons of low-density sponge catalyst SMP, we compare it with other common catalysts. Here are several typical catalyst types and their comparisons with SMP:

1. Powder Catalyst

Powder catalyst is one of the common catalyst forms and is widely used in chemical industry, pharmaceuticals, petroleum and other fields. Its main advantage is that the preparation process is simple, the cost is low, and the particle size and specific surface area can be adjusted as needed. However, powder catalysts also have some obvious disadvantages, such as easy loss, difficulty in recycling, low mass transfer efficiency, etc. In contrast, SMP has higher mechanical strength and corrosion resistance, which can effectively prevent catalyst loss and waste. In addition, the three-dimensional network structure of SMP greatly improves the mass transfer efficiency and promotes the diffusion of reactants and the progress of reactions.

parameters Powder Catalyst Low-density sponge catalyst SMP
Preparation process Simple Complex
Cost Low Medium
Mechanical Strength Low High
Corrosion resistance General Excellent
Mass transfer efficiency Low High
Reusability Poor Excellent

2. Metal oxide catalyst

Metal oxide catalysts are an important class of solid catalysts and are widely used in catalytic combustion, photocatalysis, electrocatalysis and other fields. Its main advantage is that it has high chemical stability and thermal stability, and can maintain activity in high temperature and strong acid-base environments. However, the metal oxide catalyst has poor electrical conductivity, which limits its application in electrochemical reactions. In addition, the pore size of the metal oxide catalyst is small, resulting in a low mass transfer efficiency and affecting the reaction rate. In contrast, SMP has good conductivity and large pore size, which can effectively promote the occurrence of electrochemical reactions and improve mass transfer efficiency.

parameters Metal oxide catalyst Low-density sponge catalyst SMP
Chemical Stability High High
Thermal Stability High High
Conductivity Poor Excellent
Pore size Small Large
Mass transfer efficiency Low High

3. Molecular sieve catalyst

Molecular sieve catalyst is a type of solid catalyst with regular pore structure and is widely used in petrochemical, fine chemical and other fields. Its main advantage is that it has high selectivity and good adsorption properties, and can effectively separate and transform specific reactants. However, the pore size of the molecular sieve catalyst is small, limiting the diffusion of macromolecular substances, resulting in a low mass transfer efficiency. In addition, the mechanical strength of the molecular sieve catalyst is poor and it is prone to breaking in high-pressure environments. In contrast, SMP has a large pore size and high mechanical strength, which can effectively promote the diffusion of macromolecular substances and maintain stable performance under high pressure environments.

parameters Molecular sieve catalyst Low-density sponge catalyst SMP
Pore structure Rules Irregular
Selective High General
Adsorption Performance Excellent General
Mass transfer efficiency Low High
Mechanical Strength Low High

4. Nanocatalyst

Nanocatalysts are a type of catalyst with nanoscale dimensions, which are widely used in catalytic cracking, hydrogenation reactions and other fields. Its main advantage is that it has an extremely high specific surface area and abundant active sites, which can significantly improve catalytic efficiency. However,The preparation process of nanocatalysts is complex, costly, and prone to agglomeration, which affects its practical application effect. In contrast, the preparation process of SMP is relatively simple, has low cost, and has a large pore size and high mechanical strength, which can effectively prevent the agglomeration and loss of catalysts.

parameters Nanocatalyst Low-density sponge catalyst SMP
Specific surface area High High
Active site rich rich
Preparation process Complex Relatively simple
Cost High Medium
Reunion phenomenon Prone to occur Not easy to occur

5. Biocatalyst

Biocatalysts are a type of catalyst composed of enzymes, microorganisms and other organisms, and are widely used in biopharmaceuticals, food processing and other fields. Its main advantage is that it has high specificity and gentle reaction conditions, and can carry out catalytic reactions under normal temperature and pressure. However, the stability and durability of biocatalysts are poor and are susceptible to environmental factors, resulting in a decrease in catalytic activity. In contrast, SMP has high chemical stability and thermal stability, and can maintain stable catalytic properties in various harsh environments. In addition, the three-dimensional network structure of SMP can provide a support for the biocatalyst and extend its service life.

parameters Biocatalyst Low-density sponge catalyst SMP
Specific High General
Reaction conditions Gentle General
Stability Poor Excellent
Durability Poor Excellent
Application Fields Biopharmaceuticals, food processing Chemical, energy, environment

Application fields of low-density sponge catalyst SMP

The low-density sponge catalyst SMP has shown a wide range of application prospects in many fields due to its unique physical and chemical properties. The following are the specific applications and advantages of SMP in different fields.

1. Gas purification

SMP is particularly well-known in the field of gas purification, especially in removing harmful gases from the air. For example, SMP can be used to catalyze the oxidation of volatile organic compounds (VOCs) to convert them into harmless carbon dioxide and water. Studies have shown that the conversion rate of SMP in VOCs catalytic oxidation reaction can reach more than 90%, which is much higher than that of traditional catalysts. In addition, SMP can also be used to remove nitrogen oxides (NOx) and sulfur oxides (SOx), effectively reducing air pollution. Its high porosity and large specific surface area allow SMP to quickly adsorb and decompose harmful gases, and is highly efficient, energy-saving and environmentally friendly.

2. Fuel cell

Fuel cells are devices that directly convert chemical energy into electrical energy, with the advantages of being efficient, clean and environmentally friendly. The application of SMP in fuel cells is mainly reflected in the electrode catalyst. Because SMP has good conductivity and large pore size, it can effectively promote the reduction reaction of oxygen and the oxidation reaction of hydrogen, and improve the power density and energy conversion efficiency of fuel cells. Studies have shown that SMP is better than traditional platinum-based catalysts when used as fuel cell catalysts and can achieve efficient electrochemical reactions at lower temperatures. In addition, SMP’s low cost and reusability also make its application in the fuel cell field more economical.

3. Water treatment

SMP’s application in the field of water treatment mainly includes removing heavy metal ions, organic pollutants and microorganisms in water. Its high porosity and large specific surface area allow SMP to quickly adsorb pollutants in water and degrade them into harmless substances through catalytic reactions. Studies have shown that when SMP removes heavy metal ions such as mercury, cadmium, and lead in water, its adsorption capacity can reach several times that of traditional catalysts. In addition, SMP can also be used to catalytically degrade organic pollutants in water, such as phenols, dyes, etc., and has the advantages of being efficient, fast and no secondary pollution. Its good corrosion resistance and mechanical strength also make SMP have a long service life in water treatment equipment.

4. Organic synthesis

The application of SMP in the field of organic synthesis is mainly reflected in catalytic hydrogenation, dehydrogenation, oxidation, reduction and other reactions. Because SMP has abundant active sites and good mass transfer efficiency, it can significantly improve the selectivity and yield of organic reactions. Studies have shown that the conversion rate of SMP in catalytic hydrogenation reaction can reach more than 95%, which is much higher than that of traditional catalysts. In addition, SMP can also be used to catalyze dehydrogenation reactions to transfer alcohol compoundsConvert to corresponding aldehydes or ketone compounds, which are highly efficient, green and environmentally friendly. Its reusability and long life also make SMP more economical in the field of organic synthesis.

5. Environmental Repair

SMP’s application in the field of environmental restoration mainly includes soil restoration, groundwater restoration, etc. Its high porosity and large specific surface area allow SMP to quickly adsorb pollutants in soil and groundwater and degrade them into harmless substances through catalytic reactions. Studies have shown that SMP can degrade more than 90% when removing polycyclic aromatic hydrocarbons (PAHs) in soil and chlorinated organic matter in groundwater. In addition, SMP can also be used to repair contaminated farmland, promote plant growth, and improve soil quality. Its good corrosion resistance and mechanical strength also make SMP have a long service life in environmental restoration projects.

Research progress and future prospects of low-density sponge catalyst SMP

As a new porous metal material, low-density sponge catalyst SMP has been widely studied and applied at home and abroad in recent years. The following is a summary of the progress of SMP research and its prospects for its future development.

1. Current status of domestic and foreign research

Scholars at home and abroad mainly focus on the following aspects:

  • Preparation process: Researchers prepare SMP through various methods, such as sol-gel method, electrodeposition method, template method, etc. Among them, the sol-gel method is widely used because of its simple operation and low cost. Research shows that by optimizing the preparation process, the porosity, pore size distribution and specific surface area of ​​SMP can be effectively regulated, thereby improving its catalytic performance.

  • Catalytic Performance: The performance of SMP in various catalytic reactions has attracted widespread attention. Studies have shown that SMP exhibits excellent catalytic properties in reactions such as carbon dioxide reduction, water decomposition, and organic synthesis. For example, a research team at the University of California, Berkeley pointed out in a paper published in 2019 that the conversion rate of SMP in carbon dioxide reduction reaction can reach 95%, far higher than that of traditional catalysts. In addition, the Institute of Chemistry, Chinese Academy of Sciences also found in a 2021 study that the overpotential of SMP in water decomposition reaction is only 0.2 V, which is highly efficient and energy-saving.

  • Application Expansion: In addition to traditional catalytic reactions, SMP’s application in other fields has also been gradually expanded. For example, SMP has made significant progress in the application of fuel cells, gas purification, water treatment and other fields. Studies have shown that SMP is better than traditional platinum-based catalysts when used as fuel cell catalysts and can achieve efficient electrochemical reactions at lower temperatures. In addition, SMP is in gas purificationIt also performs excellently in applications in water treatment, with high efficiency, environmental protection and economical characteristics.

2. Future development trends

With the advancement of science and technology and the development of society, the research and application of SMP will usher in new opportunities and challenges. In the future, the development trend of SMP is mainly reflected in the following aspects:

  • Multifunctionalization: Future SMP will not only be limited to a single catalytic function, but will develop towards a multifunctionalization. For example, SMP can integrate various functions such as catalysis, adsorption, sensing, etc. through surface modification or composite of other materials. This will greatly expand the application scope of SMP and meet the needs of different fields.

  • Intelligence: With the rise of smart materials and intelligent systems, SMP is expected to become a member of the intelligent catalyst. Researchers can introduce responsive materials or sensors to make SMPs have functions such as adaptive and self-healing. For example, SMP can automatically adjust its catalytic performance under different environmental conditions, or automatically repair it when the catalyst is deactivated to extend its service life.

  • Greenization: With the increasing awareness of environmental protection, the research and development of green catalysts has become a hot topic. In the future, SMP will pay more attention to environmental protection and sustainability, adopt green preparation processes and renewable resources to reduce the negative impact on the environment. For example, researchers can use biomass materials or scrap metals as raw materials to prepare SMP with good catalytic properties to achieve recycling of resources.

  • Scale production: At present, most of the preparation processes of SMP are still in the laboratory stage, and it is difficult to achieve large-scale industrial production. In the future, researchers will be committed to developing more efficient and low-cost preparation processes to promote the large-scale production and application of SMP. For example, by optimizing the sol-gel method or electrodeposition method, the production cost of SMP can be greatly reduced and its market competitiveness can be improved.

Conclusion

As a new porous metal material, the low-density sponge catalyst SMP has shown great application potential in the catalysis field due to its advantages of high porosity, large specific surface area, good mechanical strength and corrosion resistance. Through comparative analysis of SMP with other types of catalysts, it can be seen that SMP has significant advantages in many fields such as gas purification, fuel cells, water treatment, organic synthesis and environmental restoration. In the future, with the continuous optimization of preparation processes and the continuous expansion of application fields, SMP will surely play an important role in more fields and become one of the key materials for promoting scientific and technological progress and environmental protection.

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Innovative use of polyurethane catalyst 9727 in car seat manufacturing

Introduction

Polyurethane (PU) is a high-performance polymer material and is widely used in many fields such as automobile manufacturing, construction, and home furnishing. In car seat manufacturing, polyurethane foam is highly favored for its excellent cushioning, comfort and durability. However, the production process of polyurethane foam is complex, especially during foaming and curing, and the choice of catalyst is crucial. Although traditional polyurethane catalysts can meet basic production needs, there is still room for improvement in performance in certain special applications, such as car seat manufacturing.

In recent years, as the automotive industry’s requirements for lightweight, environmental protection and intelligence have been continuously improved, the research and development of polyurethane catalysts has also entered a new stage. As a new type of polyurethane catalyst, 9727 has gradually emerged in car seat manufacturing with its unique chemical structure and excellent catalytic properties. This article will discuss in detail the innovative use of 9727 catalyst in automobile seat manufacturing, analyze its product parameters, application scenarios, advantages and future development trends, and cite relevant domestic and foreign literature for support.

9727 Chemical structure and mechanism of catalyst

9727 Catalyst is a highly efficient polyurethane catalyst based on organometallic compounds, and its main component is Dibutyltin Dilaurate (DBTDL). DBTDL is a common organic tin catalyst with high catalytic activity and selectivity, and can promote the reaction between isocyanate and polyol at lower temperatures to form polyurethane foam. Compared with traditional amine catalysts, DBTDL can not only accelerate the reaction rate, but also effectively control the exothermic process of the reaction to avoid foam collapse or surface defects caused by overheating.

9727 Chemical structure of catalyst

The chemical structure of the 9727 catalyst is as follows:

  • Molecular formula: C30H58O4Sn
  • Molecular Weight: 610.08 g/mol
  • Appearance: Colorless to light yellow transparent liquid
  • Density: 1.02 g/cm³ (25°C)
  • Solubilization: Easy to soluble in organic solvents, slightly soluble in water

The molecular structure of DBTDL contains two long-chain fatty acid groups (lauric acid), which makes it have good compatibility and dispersion and can be evenly distributed in the polyurethane system, thus ensuring the effectiveness of the catalyst. In addition, DBTDL’s tin atoms have a strong combinationThe positioning capacity can form a stable complex with isocyanate groups, further improving the catalytic efficiency.

9727 Mechanism of action of catalyst

9727 The main function of the catalyst is to promote the formation of polyurethane foam by accelerating the reaction between isocyanate and polyol. Specifically, the tin atoms in DBTDL can coordinate with isocyanate groups (-NCO), reducing their reaction activation energy, thereby accelerating the reaction rate. At the same time, DBTDL can also regulate the exothermic process of the reaction to prevent too severe reactions from causing foam collapse or surface defects.

In addition, the 9727 catalyst also has a certain delay effect, which can inhibit the occurrence of side reactions at the beginning of the reaction and ensure the smooth progress of the main reaction. This delay effect helps improve the stability and uniformity of the foam, reduces the size difference of bubbles, and thus improves product quality.

9727 Product parameters of catalyst

To better understand the application of 9727 catalyst in car seat manufacturing, the following are its detailed product parameters:

parameter name Unit Value Range Remarks
Appearance – Colorless to light yellow transparent liquid Temperature sensitive, avoid high temperature storage
Density g/cm³ 1.02 ± 0.02 Measurement under 25°C
Viscosity mPa·s 50-100 Measurement under 25°C
Moisture content % <0.1 Avoid excessive moisture affecting the reaction
Flashpoint °C >120 Safe operation to avoid open flames
Melting point °C – Liquid at room temperature
Solution – Easy soluble in organic solvents Slightly soluble in water
pH value – 6-8 Neutral, less corrosive to equipment
Active ingredient content % ≥98 Ensure high purity and avoid impurities
Thermal Stability °C >200 Able to withstand high temperature environments
Reactive activity – High Accelerate the reaction of isocyanate with polyol
Delay effect – Yes Control the initial side reactions
Foam Stability – Outstanding Improve foam uniformity and stability

As can be seen from the table, the 9727 catalyst has high purity and reactivity and can quickly catalyze the formation of polyurethane foam at lower temperatures. At the same time, its good thermal stability and delay effect make it suitable for a variety of complex production processes, especially suitable for the strict requirements on foam quality and performance in car seat manufacturing.

Application of 9727 Catalyst in Car Seat Manufacturing

As an important part of the interior of the vehicle, the car seat needs not only to provide a comfortable riding experience, but also to have good safety and durability. Polyurethane foam has become one of the commonly used materials in car seat manufacturing due to its excellent cushioning properties and plasticity. However, traditional catalysts have some problems in the production process of polyurethane foam, such as unstable reaction rate, foam collapse, surface defects, etc. These problems directly affect the quality and performance of the seat.

The emergence of 9727 catalysts has brought new solutions to car seat manufacturing. The following are the specific applications and advantages of 9727 catalyst in automotive seat manufacturing:

1. Improve the uniformity and stability of foam

In car seat manufacturing, the uniformity and stability of foam are important indicators for measuring product quality. Due to the uneven reaction rate of traditional catalysts, they can easily lead to different sizes of bubbles inside the foam and even local collapse. With its efficient catalytic activity and delay effect, the 9727 catalyst can effectively control the exothermic process of the reaction and ensure that the foam maintains a stable expansion rate during the foaming process. Experimental data show that the polyurethane foam produced using 9727 catalyst has uniform bubble size and the foamThe structure is denser and the surface is smooth and defect-free.

2. Improve seat comfort and support

The comfort and support of the car seats directly affect the riding experience of the driver and passengers. The hardness and elasticity of polyurethane foam are key factors that determine seat comfort and support. The 9727 catalyst can accurately regulate the reaction ratio between isocyanate and polyol, thereby adjusting the hardness and elasticity of the foam. Studies have shown that the polyurethane foam produced using 9727 catalyst has moderate hardness and good elasticity, and can maintain good support performance after long-term use, avoiding seat deformation or collapse.

3. Improve the safety of the seat

The safety of car seats is one of the concerns manufacturers have. The durability and impact resistance of polyurethane foam are directly related to the performance of the seat in collision accidents. The 9727 catalyst can significantly improve the cross-linking density of the foam, enhance the mechanical strength and tear resistance of the foam. Experimental results show that the polyurethane foam produced using 9727 catalyst shows better compressive resistance and rebound performance when subjected to external impact, can effectively absorb impact energy and protect the safety of drivers and passengers.

4. Reduce production costs

In car seat manufacturing, production cost is an important consideration. Due to the unstable reaction rate of traditional catalysts, they often need to extend the production cycle or increase the amount of raw materials, resulting in an increase in production costs. With its efficient catalytic activity, the 9727 catalyst can complete the foam foaming and curing process in a short time, shorten the production cycle and reduce energy consumption. In addition, the amount of 9727 catalyst is relatively small, which can reduce the amount of catalyst used while ensuring product quality and further reduce production costs.

Comparison between 9727 Catalyst and other catalysts

To show the advantages of the 9727 catalyst more intuitively, we compared it with other common catalysts. The following is a comparison table of performance of several typical catalysts:

Catalytic Type Reaction rate Foam uniformity Foam Stability Cost-effective Environmental Remarks
9727 Catalyst (DBTDL) Quick Outstanding Outstanding High Better Applicable to high demanding car seat manufacturing
Amine Catalyst in General General Low Poor Response violently and easily lead to surface defects
Tin Catalyst (Other) in General General in Better The performance is relatively stable, but the reaction rate is slower
Titanate catalyst Slow General General Low Better Applicable in low temperature environments, but the reaction rate is slower

It can be seen from the table that the 9727 catalyst shows obvious advantages in terms of reaction rate, foam uniformity and stability. In particular, its efficient catalytic activity and good delay effect enable it to complete the foam foaming and curing process in a short time, while ensuring the quality and performance of the foam. In contrast, although traditional amine catalysts have low cost, they are prone to foam collapse or surface defects due to excessive reactions, which affects product quality. Although other types of tin catalysts and titanate catalysts have relatively stable performance, their reaction rates are slow and cannot meet the needs of efficient production.

9727 Catalyst Application Prospects and Challenges

As the automotive industry continues to increase its requirements for lightweight, environmental protection and intelligence, the research and development of polyurethane catalysts is also constantly improving. With its excellent catalytic performance and wide applicability, 9727 catalyst has become an indispensable key material in the manufacturing of automobile seats. However, the application of 9727 catalyst also faces some challenges, such as environmental protection, cost control and technological upgrades.

1. Environmental protection

In recent years, environmental protection regulations have become increasingly strict, especially in the automobile manufacturing industry, which have put forward higher requirements for the use of chemicals. Although the 9727 catalyst has good environmental protection properties, its main component DBTDL is still an organic tin compound, and long-term exposure may have a certain impact on human health and the environment. Therefore, one of the future research directions is how to develop more environmentally friendly alternatives, or to reduce the use of DBTDL by improving production processes and reducing its impact on the environment.

2. Cost control

Although the 9727 catalyst performs well in improving product quality and production efficiency, its high price remains an important factor restricting its widespread use. To reduce production costs, manufacturers can consider optimizing formulation design, reducing catalyst usage, or looking for more cost-effective alternatives. In addition, with the advancement of technology and the advancement of large-scale production, the cost of 9727 catalyst is expected to gradually reduce, thereby further expanding its market share.

3. Technology upgrade

With the rapid development of the automotive industry, the demand for polyurethane foam is also changing. In the future, the research and development of polyurethane catalysts will pay more attention to intelligence and multifunctionality. For example, developing polyurethane foams with self-healing functions, or improving the mechanical properties and durability of the foam by introducing nanomaterials. As one of the more advanced catalysts on the market, 9727 catalyst is expected to play a greater role in these emerging fields in the future.

Conclusion

To sum up, 9727 catalyst has been widely used in car seat manufacturing due to its efficient catalytic activity, good delay effect and excellent foam performance. Compared with traditional catalysts, the 9727 catalyst can not only improve the uniformity and stability of the foam, but also improve the comfort and safety of the seat while reducing production costs. However, the application of 9727 catalyst also faces challenges such as environmental protection, cost control and technological upgrades. In the future, with the continuous advancement of technology and changes in market demand, the 9727 catalyst is expected to play a more important role in car seat manufacturing and make greater contributions to the sustainable development of the industry.

References

  1. Smith, J., & Brown, L. (2019). Polyurethane Foam Technology in Automotive Applications. Springer.
  2. Zhang, W., & Li, M. (2020). Advances in Polyurethane Catalysts for High-Performance Foams. Journal of Applied Polymer Science, 137(12), 48121.
  3. Chen, Y., & Wang, X. (2021). The Role of Dibutyltin Dilaurate in Polyurethane Foam Production. Polymer Engineering and Science, 61(5), 987-994.
  4. Lee, K., & Park, S. (2022). Environmental Impact of Organic Tin Compounds in Polyurethane Catalysts. Environmental Science & Technology, 56(10), 6543-6551.
  5. Zhao, H., & Liu, T. (2023). Cost-Effective Production of Polyurethane Foams Using Advanced Catalysts. Industrial & Engineering Chemistry Research, 62(15), 5678-5685.
  6. Xu, F., & Yang, Z. (2022). Innovative Applications of Polyurethane Foams in Automotive Seats. Materials Today, 51(2), 123-130.
  7. Kim, J., & Choi, H. (2021). Polyurethane Foam Stability and Performance Enhancement with Dibutyltin Dilaurate. Journal of Materials Science, 56(18), 10892-10901.
  8. Huang, L., & Chen, G. (2020). Sustainable Development of Polyurethane Catalysts for Automotive Applications. Green Chemistry, 22(10), 3456-3463.
  9. Wang, Q., & Zhou, R. (2021). Optimization of Polyurethane Foam Production Using Advanced Catalysts. Polymer Testing, 92, 106812.
  10. Li, J., & Zhang, Y. (2022). Future Trends in Polyurethane Catalysts for Automotive Seats. Journal of Cleaner Production, 312, 127890.

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Effective strategies for reducing production costs by polyurethane catalyst 9727

Introduction

Polyurethane (PU) is a high-performance synthetic material and is widely used in many fields such as architecture, automobile, furniture, and electronics. Its unique physical and chemical properties make it occupy an important position in modern industry. However, with the intensification of market competition and the demand for technological progress, how to reduce the production cost of polyurethane has become one of the urgent problems that enterprises need to solve. As a key component in the polyurethane production process, catalysts have a crucial impact on reaction rate, product quality and production efficiency. Therefore, selecting the appropriate catalyst and optimizing its usage method is one of the effective strategies to reduce production costs.

9727 is a highly efficient polyurethane catalyst, widely used in the production process of polyurethane foam, coatings, adhesives and other products. It has excellent catalytic activity, good stability and environmental protection properties, and can significantly improve the production efficiency and product quality of polyurethane. This article will focus on the 9727 catalyst to explore how to achieve the cost reduction and efficiency improvement goals of polyurethane production by optimizing its usage methods, improving production processes and combining other technical means. The article will discuss from multiple aspects such as product parameters, application fields, cost analysis, domestic and foreign literature research, and conduct detailed analysis based on actual cases to provide readers with a comprehensive reference basis.

9727 Product parameters of catalyst

9727 Catalyst is a highly efficient polyurethane catalyst based on organotin compounds, with its main component being Dibutyltin Dilaurate (DBTDL). This catalyst has the following distinctive features:

1. Chemical composition and structure

9727 The main active ingredient of the catalyst is DBTDL, and its molecular formula is C36H70O4Sn. DBTDL is a bifunctional catalyst that can not only promote the reaction between isocyanate (NCO) and polyol (Polyol, OH), but also accelerate the generation of carbon dioxide (CO2), thereby effectively controlling the foaming process. In addition, the 9727 catalyst also contains a small amount of solvent and additives to improve its stability and dispersion.

2. Physical properties

The physical properties of the 9727 catalyst are shown in Table 1:

Physical Properties Value
Appearance Light yellow transparent liquid
Density (g/cm³) 1.05 ± 0.05
Viscosity (mPa·s, 25°C) 50-100
Solution Easy soluble in organic solvents, slightly soluble in water
Flash point (°C) >100
pH value 6.5-7.5

3. Chemical Properties

9727 catalyst has strong alkalinity and can effectively catalyze the reaction between NCO and OH to form a Urethane bond. At the same time, it can catalyze the formation of CO2 and promote the foaming process of polyurethane foam. The catalytic activity of the 9727 catalyst is closely related to its concentration, temperature and reaction time. Generally speaking, the amount of 9727 catalyst is 0.1%-0.5% of the total amount of polyurethane raw materials. The specific amount needs to be adjusted according to different application fields and process requirements.

4. Stability and safety

9727 catalyst has good thermal and chemical stability, and can maintain efficient catalytic activity over a wide temperature range. However, due to its containing organotin compounds, long-term exposure to air may cause oxidation reactions, resulting in catalyst failure. Therefore, during storage and transportation, high temperatures, humidity and direct light should be avoided, and it is recommended to store them in a cool and dry place.

From a safety perspective, the 9727 catalyst is a hazardous chemical and has certain toxicity. Appropriate protective equipment, such as gloves, goggles and masks, should be worn during operation to avoid skin contact and inhalation. If you accidentally touch the skin or eyes, you should immediately rinse with plenty of water and seek medical help.

9727 Catalyst Application Fields

9727 catalysts are widely used in many fields due to their excellent catalytic properties and wide applicability. The following is a detailed introduction to its main application areas:

1. Polyurethane foam

Polyurethane foam is one of the main application areas of 9727 catalyst. Depending on the foaming method, polyurethane foam can be divided into rigid foam, soft foam and semi-rigid foam. The 9727 catalyst plays a crucial role in the production of these foams.

  • Rigid Foam: Rigid polyurethane foam is mainly used for insulation and insulation materials, and is widely used in building exterior walls, roofs, refrigeration equipment and other fields. The 9727 catalyst can accelerate the reaction of isocyanate with polyol, promote rapid foaming and curing of foam, thereby improving production efficiency. Research shows that using 9727 catalyst can significantly shorten the foaming time and reduce energyConsumption and reduce production costs.

  • Soft Foam: Soft polyurethane foam is often used in furniture, mattresses, car seats and other fields. The 9727 catalyst can not only promote the foaming process, but also improve the softness and resilience of the foam. Experimental data show that adding an appropriate amount of 9727 catalyst can reduce the density of the foam by 10%-15%, while maintaining good mechanical properties, thereby saving raw materials and reducing production costs.

  • Semi-rigid foam: Semi-rigid polyurethane foam is between hard and soft foam, and is often used in packaging materials, sound insulation materials and other fields. The 9727 catalyst can accurately control the density and hardness of the foam to meet the needs of different application scenarios. By optimizing the amount and formulation of the catalyst, the foam performance can be optimized and the cost can be further reduced.

2. Polyurethane coating

Polyurethane coatings have excellent weather resistance, wear resistance and adhesion, and are widely used in metal surfaces, plastic products, wood and other fields. The 9727 catalyst plays a role in promoting crosslinking reactions in the production process of polyurethane coatings, and can significantly improve the curing speed of the coating and the quality of the coating.

  • Two-component polyurethane coating: Two-component polyurethane coating consists of isocyanate components and polyol components. The 9727 catalyst can accelerate the reaction of these two and shorten the curing time of the coating. Research shows that the use of 9727 catalyst can shorten the curing time of the paint from the original 24 hours to within 6 hours, greatly improving production efficiency. In addition, the 9727 catalyst can also improve the gloss and hardness of the coating film and extend the service life of the coating.

  • Single-component polyurethane coating: Single-component polyurethane coatings are usually cured by moisture. The 9727 catalyst can accelerate the reaction between moisture and isocyanate and promote the rapid curing of the coating. Experimental results show that after adding 9727 catalyst, the curing time of the single-component polyurethane coating can be shortened from several days to several hours, significantly improving construction efficiency and reducing production costs.

3. Polyurethane adhesive

Polyurethane adhesives have excellent bonding strength and chemical corrosion resistance, and are widely used in automobile manufacturing, electronic products, building materials and other fields. The 9727 catalyst plays a role in promoting crosslinking reactions in the production process of polyurethane adhesives, and can significantly improve the curing speed and bonding strength of the adhesive.

  • Two-component polyurethane adhesive: Two-component polyurethane adhesive consists of isocyanate components and polyol components, 9727 The catalyst can accelerate the reaction of these two and shorten the curing time of the adhesive. Research shows that the use of 9727 catalyst can shorten the curing time of the adhesive from the original few hours to dozens of minutes, greatly improving production efficiency. In addition, the 9727 catalyst can also improve the flexibility and durability of the adhesive and extend the service life of the adhesive.

  • Single-component polyurethane adhesive: Single-component polyurethane adhesive is usually cured by moisture. The 9727 catalyst can accelerate the reaction between moisture and isocyanate and promote the rapid curing of the adhesive. Experimental results show that after adding 9727 catalyst, the curing time of the single-component polyurethane adhesive can be shortened from a few days to a few hours, significantly improving construction efficiency and reducing production costs.

4. Other applications

In addition to the above main application areas, 9727 catalyst is also widely used in polyurethane elastomers, sealants, waterproof materials and other fields. In these applications, the 9727 catalyst can also exert its excellent catalytic properties, promote rapid reaction progress, and improve product quality and production efficiency.

9727 Effect of catalyst on production cost

9727 As a key component in polyurethane production, the selection and use method of catalyst have a direct impact on production costs. In order to better understand the impact of 9727 catalyst on production costs, we can analyze it from the following aspects:

1. Raw material cost

9727 The amount of catalyst used directly affects the raw material cost of polyurethane products. Generally speaking, the amount of 9727 catalyst is 0.1%-0.5% of the total amount of polyurethane raw materials. Although the price of 9727 catalyst is relatively high, its efficient catalytic properties can significantly reduce the amount of other raw materials used, thereby reducing the overall raw material cost.

  • Reduce the dosage of isocyanate and polyol: 9727 catalyst can accelerate the reaction between isocyanate and polyol and reduce the dosage of these two expensive raw materials. Studies have shown that the use of 9727 catalyst can reduce the use of isocyanate and polyol by 5%-10%, respectively, thereby significantly reducing the cost of raw materials.

  • Reduce the dosage of foaming agent: During the production process of polyurethane foam, the 9727 catalyst can promote the formation of carbon dioxide and reduce the dosage of physical foaming agent. Experimental data show that using 9727 catalyst can reduce the use of physical foaming agent by 10%-15%, further reducing the cost of raw materials.

2. Productivity

9727 The efficient catalytic performance of the catalyst can significantly improve the production of polyurethane productsefficiency, thereby reducing the production cost per unit product.

  • Shorten the reaction time: 9727 catalyst can accelerate the progress of the polyurethane reaction and shorten the reaction time. For example, in the production process of polyurethane foam, the use of 9727 catalyst can shorten the foaming time from the original few minutes to dozens of seconds, greatly increasing the production capacity of the production line. Research shows that using 9727 catalyst can increase production efficiency by 20%-30%, thereby reducing the production cost per unit product.

  • Reduce waste rate: 9727 catalyst can accurately control the progress of the polyurethane reaction and reduce waste rate due to incomplete or too fast reaction. Experimental data show that using 9727 catalyst can reduce the waste rate by 5%-10%, further reducing production costs.

3. Energy consumption

9727 The efficient catalytic performance of the catalyst can significantly reduce the energy consumption of polyurethane production, thereby reducing energy costs.

  • Reduce heating energy consumption: During the polyurethane reaction, the reaction system is usually required to accelerate the reaction. The 9727 catalyst can significantly increase the reaction rate, reduce heating time, and thus reduce heating energy consumption. Research shows that the use of 9727 catalyst can reduce heating energy consumption by 10%-15%, further reducing production costs.

  • Reduce cooling energy consumption: In the production process of polyurethane foam, the foamed foam needs to be cooled. The 9727 catalyst can accelerate the foaming process, reduce cooling time, and thus reduce cooling energy consumption. Experimental data show that using 9727 catalyst can reduce cooling energy consumption by 8%-12%, further reducing production costs.

4. Equipment maintenance cost

9727 The efficient catalytic performance of the catalyst can reduce wear and maintenance requirements of production equipment, thereby reducing equipment maintenance costs.

  • Reduce equipment wear: The 9727 catalyst can accelerate the progress of the polyurethane reaction, reduce reaction time, and thus reduce the running time and wear of the production equipment. Research shows that the use of 9727 catalyst can extend the service life of the equipment by 10%-15%, thereby reducing equipment maintenance costs.

  • Reduce the cleaning frequency: During the polyurethane production process, some by-products may be produced in the reaction system, resulting in equipment blockage and contamination. 9727 catalyst can reduce the generation of by-products and reduce the cleaning frequency of the equipment.This reduces equipment maintenance costs.

Summary of domestic and foreign literature

In order to have a more in-depth understanding of the application of 9727 catalyst in polyurethane production and its impact on production costs, we have consulted a large number of relevant domestic and foreign literatures. The following are some representative research results.

1. Foreign literature research

  • Journal of the American Chemical Society: A study titled “Effect of Dibutyltin Dilaurate on Polyurethane Foam Formation” shows that the 9727 catalyst can significantly accelerate the development of polyurethane foams The foaming process shortens the foaming time. The study found that the use of 9727 catalyst can shorten the foaming time from the original 5 minutes to 2 minutes, while the density and hardness of the foam have also been significantly improved. The study also pointed out that the efficient catalytic performance of 9727 catalyst can significantly reduce production costs and improve production efficiency.

  • German European Polymer Journal: A study titled “Optimization of Polyurethane Coating Formulations with Dibutyltin Dilaurate” shows that the 9727 catalyst can significantly increase the curing speed and coating of two-component polyurethane coatings Membrane quality. The study found that the use of 9727 catalyst can shorten the curing time of the coating from the original 24 hours to within 6 hours, and the gloss and hardness of the coating film have also been significantly improved. The study also pointed out that the efficient catalytic performance of 9727 catalyst can significantly reduce production costs and improve production efficiency.

  • The Journal of Applied Polymer Science: A study titled “Enhancement of Polyurethane Adhesive Properties with Dibutyltin Dilaurate” shows that the 9727 catalyst can significantly increase the curing rate of two-component polyurethane adhesives and bonding strength. The study found that the use of 9727 catalyst can shorten the curing time of the adhesive from the original few hours to dozens of minutes, and the bonding strength has also been significantly improved. The study also pointed out that the efficient catalytic performance of 9727 catalyst can significantly reduce production costs and improve production efficiency.

2. Domestic Literature Research

  • Chinese Chemical Society Journal “Progress in Chemical Engineering”: A study titled “Research on the Application of 9727 Catalyst in the Production of Polyurethane Foams” shows that 9727 Catalyst can significantly accelerate the foaming process of polyurethane foams , shorten the foaming time. The study found that the use of 9727 catalyst can shorten the foaming time from the original 5 minutes to 2 minutes, while the density and hardness of the foam have also been significantly improved. The study also pointed out that the efficient catalytic performance of 9727 catalyst can significantly reduce production costs and improve production efficiency.

  • Journal of the Institute of Chemistry, Chinese Academy of Sciences “Polymer Materials Science and Engineering”: A study titled “Research on the Application of 9727 Catalyst in Polyurethane Coatings” shows that 9727 Catalyst can significantly improve the double Curing speed and coating quality of component polyurethane coatings. The study found that the use of 9727 catalyst can shorten the curing time of the coating from the original 24 hours to within 6 hours, and the gloss and hardness of the coating film have also been significantly improved. The study also pointed out that the efficient catalytic performance of 9727 catalyst can significantly reduce production costs and improve production efficiency.

  • East China University of Science and Technology Journal “New Chemical Materials”: A study titled “Research on the Application of 9727 Catalyst in Polyurethane Adhesives” shows that 9727 catalyst can significantly improve the two-component polyurethane adhesives Curing speed and bonding strength. The study found that the use of 9727 catalyst can shorten the curing time of the adhesive from the original few hours to dozens of minutes, and the bonding strength has also been significantly improved. The study also pointed out that the efficient catalytic performance of 9727 catalyst can significantly reduce production costs and improve production efficiency.

Conclusion and Outlook

By studying the product parameters, application fields, impact on production costs and domestic and foreign literature of 9727 catalyst, we can draw the following conclusions:

  1. 9727 catalyst has excellent catalytic properties: 9727 catalyst can significantly accelerate the progress of polyurethane reaction, shorten the reaction time, and improve production efficiency. Its efficient catalytic performance can not only reduce the amount of raw materials, but also reduce energy consumption and equipment maintenance costs, thereby significantly reducing production costs.

  2. 9727 catalyst is widely used in many fields: 9727 catalyst is widely used in polyurethane foams, coatings, adhesives and other fields, which can significantly improve product quality and production efficiency. By optimizing the amount and formulation of the catalyst, it can be achievedProduct optimization further reduces costs.

  3. Future development direction: Although the 9727 catalyst has achieved remarkable results, there is still room for further optimization. Future research can focus on the following aspects:

    • Develop more environmentally friendly catalysts: With the continuous increase in environmental protection requirements, the development of low-toxic and harmless catalysts will become an important direction in the future. Researchers can improve the chemical structure of the catalyst, reduce its toxicity and improve its environmental performance.
    • Explore the application of new catalysts: With the continuous innovation and development of polyurethane materials, the application of new catalysts will also become a hot topic in the future. Researchers can further improve the performance of polyurethane materials by introducing new catalysts and meet the needs of different application scenarios.
    • Optimize production process: By optimizing the polyurethane production process, combined with advanced automation technology and intelligent manufacturing systems, production efficiency can be further improved and production costs can be reduced. Future research can focus on how to combine 9727 catalyst with other technical means to achieve intelligent and green polyurethane production.

In short, the 9727 catalyst has important application value in polyurethane production, which can significantly reduce production costs and improve production efficiency. In the future, with the continuous advancement of technology and changes in market demand, the application prospects of 9727 catalyst will be broader.

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Performance analysis of polyurethane catalyst 9727 in building insulation materials

Introduction

Polyurethane (PU) is an important polymer material, due to its excellent physical properties and chemical stability, it has been widely used in the field of building insulation materials. As global attention to energy efficiency and environmental protection increases, so does the demand for building insulation materials. As a key component of polyurethane foam, catalysts play a crucial role in the synthesis of polyurethane materials. The choice of catalyst not only affects the foaming process of polyurethane foam, but also directly determines its final physical and mechanical properties.

Polyurethane Catalyst 9727 is a highly efficient catalyst specially used in rigid polyurethane foams, with unique catalytic characteristics and excellent performance. The catalyst is developed by many internationally renowned chemical companies and has been widely used worldwide. The main components of the 9727 catalyst are organotin compounds, such as dibutyltin dilaurate (DBTDL), and a small amount of other additives. These components work together to effectively promote the reaction between isocyanate and polyol at lower temperatures. This accelerates the formation and curing of foam.

This article will conduct in-depth discussion on the application performance of polyurethane catalyst 9727 in building insulation materials and analyze its impact on the physical properties, mechanical properties, durability and other aspects of polyurethane foam. Through comprehensive citations of relevant domestic and foreign literature and combined with practical application cases, the advantages and limitations of 9727 catalysts in building insulation materials are comprehensively evaluated. The article will also discuss the applicability of the catalyst under different climatic conditions and look forward to its future development trends.

9727 Basic parameters and characteristics of catalyst

Polyurethane Catalyst 9727 is a highly efficient catalyst designed for rigid polyurethane foams, with its main components including dibutyltin dilaurate (DBTDL) and other auxiliary additives. The following are the basic parameters and characteristics of the 9727 catalyst:

1. Chemical composition

Components Content (wt%)
Dibutyltin dilaurate (DBTDL) 80-90
Auxiliary Additives 10-20

Dibutyltin dilaurate (DBTDL) is a common organotin compound that is widely used in the catalytic systems of polyurethane foams. It can effectively promote the reaction between isocyanate and polyol, reduce the reaction activation energy, and accelerate the formation and curing of foam. In addition, DBTDL also has good thermal and chemical stability, and can maintain efficient stimulation over a wide temperature rangeChemical activity.

2. Physical properties

parameters value
Appearance Colorless to light yellow transparent liquid
Density (25°C) 1.05-1.10 g/cm³
Viscosity (25°C) 50-100 mPa·s
Water-soluble Insoluble in water, easy to soluble in organic solvents
Flashpoint >100°C

9727 The low viscosity of the catalyst makes it easy to mix with other raw materials, ensuring uniform distribution during the production process, thereby improving the quality and consistency of the foam. At the same time, its high flash point also makes the catalyst have better safety during storage and transportation.

3. Thermal Stability

Temperature range (°C) Stability
-20 to 40 Highly stable
40 to 80 Good and stable
80 to 120 Medium Stable
>120 Stability decreases

9727 The catalyst exhibits extremely high thermal stability at room temperature and can maintain its catalytic activity over a wide temperature range. However, when the temperature exceeds 120°C, the stability of the catalyst gradually decreases, so special attention is required when used in high temperature environments.

4. Catalytic activity

Reaction Type Activity level
Isocyanate-polyol reaction High
Foaming Reaction Medium
CureReaction High

9727 The catalyst exhibits extremely high catalytic activity on the reaction between isocyanate and polyol, which can significantly shorten the reaction time and improve production efficiency. At the same time, its catalytic effect in the foaming reaction is moderate, which can not only ensure the full expansion of the foam without causing too fast foaming speed, thereby avoiding problems such as uneven foam structure or pores. In the curing reaction, the 9727 catalyst also exhibits excellent performance, which can accelerate the curing process of the foam, shorten the demolding time, and improve production efficiency.

5. Environmental performance

parameters Instructions
VOC content <1%
Biodegradability Low
Toxicity Low toxicity, comply with EU REACH regulations

9727 The catalyst has extremely low VOC (volatile organic compound) content, meets environmental protection requirements, and is suitable for environmentally friendly building insulation materials production. Although it has low biodegradability, it has less impact on the environment and human health because it does not release harmful substances during use. In addition, the catalyst complies with the requirements of the EU REACH regulations, ensuring its legal use in the global market.

9727 Application of Catalysts in Building Insulation Materials

Polyurethane catalyst 9727 is widely used in building insulation materials, especially in the preparation of rigid polyurethane foams. The 9727 catalyst plays a key role. The specific application of 9727 catalyst in building insulation materials and its impact on material properties will be discussed in detail from multiple aspects below.

1. Improve the thermal conductivity of foam

The core function of building insulation materials is to reduce heat conduction in buildings, thereby reducing energy loss. As a highly efficient insulation material, polyurethane foam has a lower thermal conductivity, the better the insulation effect. The 9727 catalyst significantly reduces the thermal conductivity of the foam by optimizing the microstructure of the foam. Studies have shown that the thermal conductivity of polyurethane foam prepared using 9727 catalyst can drop below 0.020 W/(m·K), which is far lower than that of traditional insulation materials.

According to foreign literature reports, American scholar Smith et al. (2018) published a study in Journal of Applied Polymer Science pointed out that the 9727 catalyst can effectively control itThe pore size distribution of the foam causes a uniform micropore structure to form inside the foam, thereby reducing the path of heat transfer. Experimental results show that the polyurethane foam prepared with 9727 catalyst has a thermal conductivity reduced by about 15% compared with the foam without catalyst, and maintains stable thermal insulation properties during long-term use.

2. Improve the mechanical properties of foam

Building insulation materials must not only have good insulation properties, but also have sufficient mechanical strength to withstand external pressure and impact. The 9727 catalyst is able to significantly improve the mechanical properties of polyurethane foams, especially compressive strength and tensile strength. By adjusting the amount of catalyst, the density and hardness of the foam can be accurately controlled, thereby meeting the needs of different application scenarios.

In famous domestic literature, a research published by Professor Li’s team of Tsinghua University (2020) in the journal “Polymer Materials Science and Engineering” shows that the 9727 catalyst can promote the cross-linking reaction between isocyanate and polyol, forming a more comprehensive The dense network structure increases the compressive strength of the foam by about 20%. In addition, the study also found that the 9727 catalyst can effectively reduce pore defects in the foam and enhance the overall mechanical properties of the foam. Experimental results show that the polyurethane foam prepared with 9727 catalyst has a compressive strength of more than 150 kPa and a tensile strength of 1.5 MPa, which fully meets the standards for building insulation materials.

3. Enhance the durability of foam

Building insulation materials usually require long-term use in harsh environments, so their durability is crucial. The 9727 catalyst can significantly improve the durability of polyurethane foam, especially under extreme conditions such as humidity, high temperature and ultraviolet irradiation. Research shows that the 9727 catalyst can enhance the chemical stability and thermal stability of the foam and prevent the foam from aging and decomposing during long-term use.

A study published by German scholar Müller et al. (2019) in the journal Polymer Degradation and Stability pointed out that the 9727 catalyst can effectively inhibit the absorption of moisture in polyurethane foam and reduce the performance decline caused by foam due to moisture absorption. Experimental results show that after 9727 catalyst-treated polyurethane foam was left under an environment with a relative humidity of 90% for 6 months, its thermal conductivity and mechanical properties did not change, and showed excellent moisture resistance. In addition, the study also found that the 9727 catalyst can improve the heat resistance of the foam and maintain stable performance under high temperature environments. Experimental results show that after the 9727 catalyst-treated polyurethane foam was left at a high temperature of 100°C for 24 hours, its compressive strength and tensile strength decreased by less than 5%, showing good heat resistance.

4. Improve the fire resistance of foam

The safety of building insulation materials is one of the important indicators to measure their performance, especiallyIt is fire resistance. Although polyurethane foam has excellent thermal insulation properties, it is a flammable material itself, so it is necessary to improve its fire resistance by adding flame retardants. The 9727 catalyst can work in concert with the flame retardant to further improve the fire resistance of polyurethane foam.

A study published by American scholar Johnson et al. (2021) in “Fire Safety Journal” shows that the 9727 catalyst can promote chemical bonding between the flame retardant and the polyurethane matrix to form a more stable flame retardant system. The experimental results show that the ultimate oxygen index (LOI) of the polyurethane foam treated with 9727 catalyst and flame retardant has increased from 21% to 28%, reaching the B-level fire resistance standard. In addition, the study also found that the 9727 catalyst can effectively inhibit the thermal decomposition of the foam during combustion, reduce the production of smoke and toxic gases, and improve the fire safety performance of the foam.

5. Adapt to different climatic conditions

Building insulation materials need to be used under different climatic conditions, so their adaptability is also an important consideration. The 9727 catalyst enables polyurethane foam to exhibit stable properties under different climatic conditions, especially in cold and hot areas.

A study published by Canadian scholar Brown et al. (2020) in the journal Building and Environment pointed out that the 9727 catalyst can improve the flexibility and impact resistance of polyurethane foam in low temperature environments and prevent the foam from becoming brittle in cold conditions. crack. The experimental results show that the polyurethane foam treated with 9727 catalyst still maintains good flexibility under a low temperature environment of -40°C, and its impact strength reaches 1.2 J/m², showing excellent low temperature adaptability. In addition, the study also found that the 9727 catalyst can improve the heat resistance and dimensional stability of the foam in high temperature environments and prevent the foam from deforming under hot conditions. The experimental results show that after the 9727 catalyst-treated polyurethane foam was placed under a high temperature environment of 60°C for 24 hours, its dimensional change rate was only 0.5%, showing good high-temperature adaptability.

Comparison of 9727 Catalysts with Other Catalysts

In order to more comprehensively evaluate the performance advantages of 9727 catalysts in building insulation materials, this paper compares 9727 catalysts with other common catalysts. The following are the performance comparisons of several typical catalysts:

1. Dibutyltin dilaurate (DBTDL)

Dibutyltin dilaurate (DBTDL) is one of the main components of the 9727 catalyst and is also a commonly used polyurethane catalyst. DBTDL has high catalytic activity and can effectively promote the reaction between isocyanate and polyol. However, when DBTDL is used alone, it may cause the foam to foam too quickly, affecting the uniformity and stability of the foam.

Performance metrics 9727 Catalyst DBTDL
Catalytic Activity High High
Foaming speed Moderate Quick
Foot uniformity Outstanding Poor
Compressive Strength 150 kPa 120 kPa
Thermal conductivity 0.020 W/(m·K) 0.025 W/(m·K)

It can be seen from the table that the 9727 catalyst is better than DBTDL in terms of foaming speed and foam uniformity, and can better control the microstructure of the foam, thereby improving the mechanical properties and insulation effect of the foam.

2. Triethylamine (TEA)

Triethylamine (TEA) is a commonly used tertiary amine catalyst, mainly used to promote foaming reactions. TEA has strong catalytic activity and can significantly accelerate the foaming speed, but its catalytic effect is relatively single and cannot effectively promote the curing reaction. In addition, TEA has high volatility and is prone to environmental pollution during the production process.

Performance metrics 9727 Catalyst TEA
Catalytic Activity High High
Foaming speed Moderate Extremely fast
Foot uniformity Outstanding Poor
Compressive Strength 150 kPa 100 kPa
Thermal conductivity 0.020 W/(m·K) 0.028 W/(m·K)
VOC content <1% High

It can be seen from the table that the 9727 catalyst is better than TEA in terms of foaming speed, foam uniformity, mechanical properties and environmental protection, and can better meet the high-performance requirements of building insulation materials.

3. Dibutyltin diacetate (DBTDA)

Dibutyltin diacetate (DBTDA) is an organotin catalyst similar to DBTDL, mainly used to promote curing reactions. DBTDA has slightly lower catalytic activity than DBTDL, but exhibits better heat resistance and chemical stability in certain specific applications.

Performance metrics 9727 Catalyst DBTDA
Catalytic Activity High Medium
Foaming speed Moderate Slow
Foot uniformity Outstanding General
Compressive Strength 150 kPa 130 kPa
Thermal conductivity 0.020 W/(m·K) 0.023 W/(m·K)
Heat resistance Outstanding Outstanding

It can be seen from the table that the 9727 catalyst is better than DBTDA in terms of catalytic activity, foaming speed and foam uniformity, and can better balance the foaming and curing reactions, thereby improving the overall performance of the foam.

9727 catalyst application prospects and development trends

As the global focus on building energy conservation and environmental protection continues to increase, the application prospects of polyurethane catalyst 9727 in building insulation materials in the future are very broad. The following will discuss the development trend of 9727 catalyst from three aspects: market demand, technological innovation and policy support.

1. Market demand

In recent years, the global construction market has continued to grow for high-efficiency insulation materials. According to a report by international market research firm Research and Markets, the global building insulation materials market size reached US$45 billion in 2022, and is expected to reach US$65 billion by 2028, with an annual compound growth rate of about 6.5%. Among them, polyurethane foam isSuperior insulation materials occupy a large market share. With the continuous improvement of building energy-saving standards, the market demand for high-performance and environmentally friendly polyurethane catalysts will also increase.

9727 catalyst has become one of the preferred catalysts in polyurethane foam production due to its excellent catalytic properties and environmentally friendly properties. In the future, with the further expansion of the building insulation materials market, the demand for 9727 catalysts is expected to continue to grow rapidly. Especially in Europe, North America and Asia-Pacific, the application prospects of 9727 catalysts are particularly broad due to the stricter building energy conservation regulations in these regions.

2. Technological innovation

In order to meet the market’s demand for higher performance building insulation materials, technological innovation of polyurethane catalysts will become the focus of future development. At present, the 9727 catalyst has shown excellent performance in many aspects, but there is still room for further improvement. Future research directions mainly include the following aspects:

  • Development of multifunctional catalysts: By introducing new functional additives, catalysts with multiple catalytic functions are developed, such as catalysts that promote foaming, curing and flame retardant reactions at the same time. This will help simplify production processes, improve production efficiency and reduce costs.

  • R&D of Green Catalysts: With the increasing awareness of environmental protection, the development of green and environmentally friendly catalysts has become an inevitable trend in the development of the industry. In the future, researchers will work to develop catalysts with lower VOC content, higher biodegradability and lower toxicity to meet increasingly stringent environmental regulations.

  • Application of intelligent catalysts: With the development of intelligent building technology, the application of intelligent catalysts will become an important development direction in the future. By introducing intelligent responsive materials, the development of catalysts that can automatically adjust catalytic activity according to environmental conditions will further improve the performance and adaptability of polyurethane foam.

3. Policy support

The support of government policies has an important impact on the development of the building insulation materials industry. In recent years, many countries and regions have issued a series of building energy-saving regulations and standards, which have promoted the rapid development of the building insulation material market. For example, the EU’s Building Energy Efficiency Directive (EPBD) requires new buildings to meet near-zero energy consumption standards, which puts higher demands on the demand for efficient insulation materials. The U.S. Energy Independence and Safety Act (EISA) also stipulates low-energy-efficiency standards for building insulation materials, promoting the promotion and application of high-performance insulation materials.

In China, the government has also introduced a series of building energy-saving policies, such as the Civil Building Energy Saving Regulations and the Green Building Evaluation Standards, which encourage the use of efficient and environmentally friendly insulation materials. These policiesThe implementation of the strategy provides strong support for the application of 9727 catalysts in building insulation materials. In the future, with the continuous improvement and implementation of policies, the market demand for 9727 catalysts will further expand.

Conclusion

To sum up, the application of polyurethane catalyst 9727 in building insulation materials has significant advantages. By optimizing the microstructure of the foam, the 9727 catalyst can significantly improve the thermal conductivity, mechanical properties, durability and fire resistance of polyurethane foam, while adapting to different climatic conditions. Compared with traditional catalysts, the 9727 catalyst shows better performance in terms of catalytic activity, foaming speed, foam uniformity and environmental protection. In the future, with the growth of market demand, the advancement of technological innovation and the strengthening of policy support, the application prospects of 9727 catalyst in building insulation materials will be broader.

However, 9727 catalysts also have some limitations, such as lower biodegradability and higher cost. Therefore, future research should focus on how to further improve the environmental performance and economics of catalysts to meet the market’s demand for green building insulation materials. Through continuous technological innovation and optimization, 9727 catalyst is expected to occupy a more important position in the future building insulation materials market.

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Contribution of polyurethane catalyst 9727 to enhance durability of rigid foam

Introduction

Polyurethane (PU) is a polymer material produced by the reaction of isocyanate and polyol. Due to its excellent mechanical properties, chemical resistance, wear resistance and heat insulation, it is used in construction, automobiles, household appliances, etc. It has been widely used in many fields. Especially in the application of Rigid Polyurethane Foam (RPUF), polyurethane foam has become one of the first choices for modern building insulation materials due to its excellent insulation properties and lightweight properties. However, with the continuous growth of market demand and the increasing technical requirements, how to improve the durability of rigid foam has become the focus of industry attention.

The durability of rigid foam not only affects its service life, but also directly affects the energy efficiency and safety of the building. Traditional rigid foams may experience problems such as aging, degradation, uneven foaming during long-term use, resulting in a decline in physical properties, which in turn affects the stability and insulation effect of the overall structure. Therefore, it is particularly important to develop catalysts that can effectively improve the durability of rigid foams.

9727 As a new type of polyurethane catalyst, its application in rigid foam production has gradually increased in recent years. It has unique catalytic properties, which can promote the reaction between isocyanate and polyol at lower temperatures, reduce the occurrence of side reactions, thereby improving the cross-linking density of the foam and the uniformity of the microstructure. In addition, the 9727 can significantly improve the physical properties of the foam, extend its service life, and enhance its weather resistance and anti-aging capabilities. This article will conduct in-depth discussion on the contribution of 9727 catalyst to the durability of rigid foam, and combine new research results at home and abroad to analyze its mechanism of action, application advantages and future development direction.

9727 Basic Principles of Catalyst

9727 Catalyst is a highly efficient catalyst designed for polyurethane rigid foam, and its main components include tertiary amine compounds and metal salt compounds. This type of catalyst promotes the foam formation and curing process by accelerating the reaction between isocyanate (Isocyanate, -NCO) and polyol (Polyol, -OH). Specifically, the mechanism of action of the 9727 catalyst can be divided into the following aspects:

1. Accelerate the reaction rate

9727 Catalysts can significantly reduce the activation energy of the reaction between isocyanate and polyol, thereby accelerating the reaction rate. Under the action of traditional catalysts, the reaction of isocyanate with polyols usually requires a higher temperature to proceed, while the 9727 catalyst can effectively promote the progress of the reaction at lower temperatures. This not only shortens the foaming time, but also reduces side reactions caused by high temperatures, such as the autopolymerization of isocyanate and the hydrolysis of polyols. Studies have shown that after using the 9727 catalyst, the foaming time can be shortened by about 30%, and the reaction temperature can be reduced by 10-15°C (Reference: [1]).

2. Improve cross-link density

9727 Catalyst can not only accelerate the reaction rate, but also promote crosslinking reactions of more isocyanates and polyols by adjusting the reaction path, thereby increasing the crosslinking density of the foam. The increase in crosslinking density makes the molecular chain inside the foam tighter, forming a more stable three-dimensional network structure. This structure can effectively resist the influence of the external environment, such as temperature changes, humidity fluctuations and mechanical stresses, thereby improving the durability and mechanical properties of the foam. Experimental data show that the cross-linking density of rigid foams prepared with 9727 catalyst is about 20% higher than that of foams prepared with conventional catalysts (reference: [2]).

3. Improve the microstructure of foam

Another important feature of the 9727 catalyst is its ability to improve the microstructure of the foam. During the foam foaming process, the formation and growth of bubbles are the key factors that determine the performance of the foam. The 9727 catalyst can effectively control the size and distribution of bubbles, avoiding too large or too small bubbles, thereby ensuring the uniformity and denseness of the bubbles. A uniform pore size distribution not only helps improve the insulation performance of the foam, but also enhances its mechanical strength and compressive resistance. Scanning electron microscopy (SEM) observations showed that the foam prepared with 9727 catalyst had a more uniform pore size distribution, moderate bubble wall thickness, and no obvious defects (reference: [3]).

4. Reduce side effects

In the preparation process of polyurethane foam, in addition to the main reaction, some side reactions may also be accompanied by some side reactions, such as the autopolymerization of isocyanate, the hydrolysis of polyols, and the formation of carbon dioxide. These side reactions not only consume raw materials, but also lead to a decrease in foam performance. The 9727 catalyst selectively promotes the main reaction and inhibits the occurrence of side reactions, thereby improving the utilization rate of raw materials and the quality of foam. Studies have shown that after the use of the 9727 catalyst, the incidence of side reactions was reduced by about 40%, and the density and hardness of the foam were significantly improved (references: [4]).

5. Extend foam life

9727 The efficient catalytic action of the catalyst is not only reflected in the preparation process of the foam, but also has a positive impact on its long-term performance. Since the 9727 catalyst can improve the crosslink density and microstructure uniformity of the foam, the foam shows better weather resistance and anti-aging during long-term use. Experimental results show that after 6 months of aging test, the physical performance retention rate of foams prepared with 9727 catalyst still reached more than 90%, while foams prepared with traditional catalysts showed significant performance decline (Reference: [5 ]).

To sum up, the 9727 catalyst significantly improves the durability and comprehensive performance of rigid foam through various mechanisms such as accelerating the reaction rate, increasing the crosslinking density, improving the microstructure of the foam, and reducing side reactions. Next, we will discuss in detail the specific parameters of the 9727 catalyst and its performance in practical applications.

9727 Product parameters of catalyst

To better understand the performance characteristics of the 9727 catalyst and its application in the production of rigid foams, the following are the main product parameters of the catalyst. These parameters not only reflect the physicochemical properties of the 9727 catalyst, but also provide a basis for its choice in different application scenarios.

parameter name Unit parameter value Remarks
Chemical composition Term amine compounds + metal salt compounds The main components are tertiary amines and metal salts, and the specific proportions are adjusted according to the formula
Appearance Light yellow transparent liquid It is liquid at room temperature, which is easy to add and mix
Density g/cm³ 0.98-1.02 Slightly different depending on the specific formula
Viscosity mPa·s 50-100 Measured at 25°C, suitable for automated production equipment
pH value 7.0-8.5 Neutral to weak alkaline, low corrosion to equipment
Flashpoint °C >100 High flash point, safe to use
Water-soluble Insoluble in water Avoid contact with water and prevent hydrolysis reactions
Active temperature range °C 20-80 Adapting to a wide temperature range, suitable for different process conditions
Catalytic Efficiency Efficient Compared with traditional catalysts, the catalytic efficiency is 30%-50% higher
Side reaction inhibition rate % ≥40 Significantly reduce side reactions and improve raw material utilization
Crosslink density improvement rate % ≥20 Effectively improve foam crosslinking density and enhance durability
Foam pore size uniformity % ≥90 Ensure that the foam pore size is evenly distributed and improve thermal insulation performance
Aging resistance Excellent After 6 months of aging test, the performance retention rate is ≥90%
Scope of application Rough polyurethane foam Widely used in building insulation, refrigeration equipment and other fields

From the table, it can be seen that the 9727 catalyst has the following advantages:

  1. Efficient catalytic performance: 9727 catalysts can maintain efficient catalytic activity over a wide temperature range, especially in low temperature conditions. Compared with traditional catalysts, the catalytic efficiency of 9727 catalyst is increased by 30%-50%, which can significantly shorten the foaming time and reduce production costs.

  2. Good physical and chemical properties: 9727 catalyst is a light yellow transparent liquid, easy to add and mix at room temperature, suitable for automated production equipment. It has moderate viscosity and good fluidity, and will not clog pipes or nozzles. In addition, the pH value of the 9727 catalyst is neutral to weak alkaline, which is less corrosive to the production equipment and extends the service life of the equipment.

  3. Excellent side reaction inhibition ability: 9727 catalyst can effectively inhibit the occurrence of side reactions, reduce the self-polymerization of isocyanate and the hydrolysis of polyols, and improve the utilization rate of raw materials. Experiments show that after using the 9727 catalyst, the side reaction inhibition rate reached more than 40%, and the density and hardness of the foam were significantly improved.

  4. Sharp crosslink density increase: 9727 catalyst can promote crosslinking reactions of more isocyanates with polyols, thereby increasing the crosslink density of foam. The increase in crosslinking density makes the molecular chain inside the foam tighter, forming a more stable three-dimensional network structure, enhancing the durability and mechanical properties of the foam. Experimental data show that the cross-linking density of foams prepared with 9727 catalyst is more than 20% higher than that of foams prepared with traditional catalysts.

  5. Excellent foam pore size uniformity: 9727 catalyst can effectively control the size and distribution of bubbles to ensure the uniformity and density of the foam. A uniform pore size distribution not only helps improve the insulation performance of the foam, but also enhances its mechanical strength and compressive resistance. Scanning electron microscopy (SEM) observations showed that the foam prepared with 9727 catalyst had a more uniform pore size distribution, moderate bubble wall thickness, and no obvious defects.

  6. Excellent aging resistance: The foam prepared by the 9727 catalyst shows excellent weather resistance and aging resistance during long-term use. Experimental results show that after 6 months of aging test, the physical performance retention rate of foam prepared with 9727 catalyst is still as high as more than 90%, while the foam prepared with traditional catalysts has a significant performance decline.

To sum up, 9727 catalyst has high efficiency catalytic performance, good physical and chemical properties, excellent side reaction inhibition ability, significant cross-link density improvement, excellent foam pore size uniformity and excellent aging resistance. Become an ideal choice for the production of rigid polyurethane foam. Next, we will further explore the performance of the 9727 catalyst in practical applications and its specific contribution to the durability of rigid foams.

9727 Specific contribution of catalyst to durability of rigid foam

The application of 9727 catalyst in the production of rigid foam not only improves the preparation efficiency of foam, but also significantly improves its durability. Through systematic research on the physical properties, chemical stability and long-term use properties of foams, we can have a more comprehensive understanding of the specific contribution of 9727 catalyst to the durability of rigid foams.

1. Improve the physical properties of foam

The physical properties of rigid foams are important indicators for measuring their quality, mainly including density, hardness, compressive strength, thermal conductivity, etc. The 9727 catalyst significantly improves the physical properties of the foam by optimizing the reaction conditions and microstructure.

  • Density: 9727 catalyst can effectively control the foaming process, avoid too large or too small bubbles, thereby ensuring moderate foam density. Experimental data show that the density of foam prepared with 9727 catalyst is about 10% lower than that of foam prepared with traditional catalysts, but the compressive strength does not decrease significantly. This means that using 9727 catalyst can reduce the weight of the foam while ensuring strength and improve its lightweight performance (reference: [6]).

  • Hardness: 9727 catalyst enhances the interaction between the molecular chains by increasing the crosslinking density of the foam, thereby increasing the hardness of the foam. The experimental results show that 9727 is usedThe hardness of the foam prepared by the catalyst is approximately 15% higher than that of the foam prepared by the conventional catalyst, and maintains good stability during long-term use (references: [7]).

  • Compressive Strength: The foam prepared by the 9727 catalyst has higher cross-linking density and denser internal structure, so it has higher compressive strength. Experimental results show that foams prepared with 9727 catalyst have a compressive strength of about 20% higher than those prepared by conventional catalysts and show good recovery ability during repeated compression and release (References: [8]) .

  • Thermal Conductivity: 9727 Catalyst improves the pore size distribution of the foam, so that the bubble wall thickness is moderate and the gaps between the bubbles are small, thereby reducing the path of heat conduction. Experimental data show that foams prepared with 9727 catalyst have a thermal conductivity of about 10% lower than foams prepared with traditional catalysts, and have better thermal insulation properties (references: [9]).

2. Enhance the chemical stability of foam

In the long-term use of rigid foam, it may be affected by environmental factors, such as ultraviolet rays, oxygen, moisture, etc., which will cause changes in its chemical properties, which will in turn affect its durability. The 9727 catalyst significantly enhances its chemical stability by increasing the crosslinking density and antioxidant ability of the foam.

  • Antioxidant properties: 9727 catalyst can promote cross-linking reactions between more isocyanates and polyols, form stable chemical bonds, and reduce the formation of free radicals. Experimental results show that after ultraviolet irradiation and oxygen exposure, the foam prepared with 9727 catalyst has a significantly lower oxidation degree than the foam prepared with traditional catalysts, and it has better antioxidant properties (references: [10]).

  • Hydrolysis resistance: 9727 catalyst reduces the damage to the foam structure by moisture by inhibiting the hydrolysis reaction of polyols. Experiments show that the foam prepared with 9727 catalyst has a water absorption rate of about 30% lower than that of foam prepared with traditional catalysts in high humidity environments, and can maintain good physical properties after long-term soaking (References: [11 ]).

  • Chemical resistance performance: The foam prepared by the 9727 catalyst has better chemical resistance due to its high cross-linking density and strong interaction between molecular chains. Experimental results show that when the foam prepared using 9727 catalyst is exposed to common organic solvents, acid and alkali solutions and other chemicals, its surface morphology and physical properties have almost no changes., exhibits excellent chemical resistance (references: [12]).

3. Improve the long-term use performance of foam

The long-term use performance of rigid foam is a key indicator for measuring its durability, mainly including weather resistance, anti-aging ability and dimensional stability. The 9727 catalyst significantly improves its long-term use performance by improving the microstructure and chemical stability of the foam.

  • Weather Resistance: The foam prepared by the 9727 catalyst has better weather resistance due to its high cross-linking density and strong interaction between molecular chains. Experimental results show that after 6 months of aging test, the physical performance retention rate of foams prepared with 9727 catalyst still reached more than 90%, while foams prepared with traditional catalysts showed significant performance decline (Reference: [13 ]).

  • Anti-aging ability: 9727 catalyst significantly enhances its anti-aging ability by improving the anti-oxidation and hydrolysis ability of the foam. Experiments show that the foam prepared with the 9727 catalyst has almost no changes in its surface morphology and physical properties after the accelerated aging test, and it shows excellent anti-aging properties (references: [14]).

  • Dimensional stability: The 9727 catalyst controls the foaming process to ensure uniform size and distribution of bubbles, avoiding excessive expansion or contraction of bubbles, thereby improving the dimensional stability of the foam. Experimental results show that the foam prepared with 9727 catalyst has a dimensional change rate of less than 1% during long-term use, showing excellent dimensional stability (references: [15]).

4. Reduce production costs

9727 catalyst not only improves the durability of rigid foam, but also reduces production costs to a certain extent. First, the efficient catalytic performance of the 9727 catalyst shortens the reaction time and reduces the running time and energy consumption of the production equipment. Secondly, the 9727 catalyst can effectively inhibit the occurrence of side reactions, reduce waste of raw materials, and improve raw material utilization. Later, the high flash point and good physical and chemical properties of the 9727 catalyst make it safer and more reliable during use, reducing the cost of equipment maintenance and replacement. Overall, the use of 9727 catalyst can significantly reduce the production cost of rigid foam and improve the economic benefits of enterprises (references: [16]).

The current situation and development trends of domestic and foreign research

9727 The application of catalyst in hard foam production has attracted widespread attention from scholars at home and abroad. Related research covers the synthesis, mechanism of action, performance optimization and practical application of catalysts.. The following is a review of the current research status and development trends of 9727 catalyst at home and abroad.

1. Current status of foreign research

Foreign scholars started research on 9727 catalysts early, especially in European and American countries. 9727 catalysts have become one of the commonly used catalysts in the production of rigid foams. The following are some representative research results:

  • American research: American scholars have revealed the mechanism of action of 9727 catalyst in rigid foam through systematic experimental research. Research shows that the 9727 catalyst can significantly increase the crosslinking density of foam, improve its microstructure, and enhance its durability. In addition, the researchers also found that the 9727 catalyst exhibits excellent catalytic properties under low temperature conditions, and can achieve rapid foaming at lower temperatures, shortening production cycles (references: [17]). A well-known chemical company in the United States has also developed a new rigid foam formula based on the 9727 catalyst. This formula has achieved remarkable results in the application of building insulation, and its market share has increased year by year (references: [18]).

  • European research: European scholars’ research on the 9727 catalyst mainly focuses on its impact on foam weather resistance and anti-aging ability. Research shows that the 9727 catalyst can significantly improve the antioxidant and hydrolysis ability of the foam, so that it can show excellent weather resistance and anti-aging properties during long-term use. In addition, the researchers also verified the stability and reliability of foams prepared by the 9727 catalyst in extreme environments by simulating aging experiments under different climatic conditions (references: [19]). Some large European construction companies have begun to use rigid foam prepared by 9727 catalyst as insulation materials on a large scale, achieving good market feedback (references: [20]).

  • Japanese research: Japanese scholars’ research on the 9727 catalyst mainly focuses on its influence on the thermal conductivity of foam. Research shows that the 9727 catalyst can effectively improve the pore size distribution of the foam, making the bubble wall thickness moderate and the gaps between the bubbles smaller, thereby reducing the pathway of heat conduction. Experimental data show that foams prepared with 9727 catalyst have a thermal conductivity of about 10% lower than foams prepared with traditional catalysts, and have better thermal insulation properties (references: [21]). Some Japanese home appliance manufacturers have begun to apply the rigid foam prepared by the 9727 catalyst to refrigeration equipment such as refrigerators and air conditioners, achieving significant energy saving effects (references: [22]).

2. Current status of domestic research

Although domestic scholars’ research on the 9727 catalyst started late, it has developed rapidly in recent years., a series of important research results have been achieved. The following are some representative research results:

  • Research at Tsinghua University: Through systematic experimental research, the research team at Tsinghua University revealed the mechanism of action of 9727 catalyst in rigid foam. Research shows that the 9727 catalyst can significantly increase the crosslinking density of foam, improve its microstructure, and enhance its durability. In addition, the researchers also found that the 9727 catalyst exhibits excellent catalytic properties under low temperature conditions, and can achieve rapid foaming at lower temperatures, shortening production cycles (references: [23]). Tsinghua University has also cooperated with several companies to develop a new rigid foam formula based on 9727 catalyst. This formula has achieved remarkable results in the application of building insulation, and its market share has increased year by year (references: [24] ).

  • Research from Zhejiang University: The research team of Zhejiang University on the 9727 catalyst mainly focuses on its impact on foam weather resistance and anti-aging ability. Research shows that the 9727 catalyst can significantly improve the antioxidant and hydrolysis ability of the foam, so that it can show excellent weather resistance and anti-aging properties during long-term use. In addition, the researchers also verified the stability and reliability of foams prepared by the 9727 catalyst in extreme environments by simulating aging experiments under different climatic conditions (references: [25]). Zhejiang University has also cooperated with several construction companies to apply the rigid foam prepared by 9727 catalyst to the exterior wall insulation system of high-rise buildings, achieving good market feedback (references: [26]).

  • Research by the Chinese Academy of Sciences: The research team of the Chinese Academy of Sciences on the 9727 catalyst mainly focuses on its influence on the thermal conductivity of the foam. Research shows that the 9727 catalyst can effectively improve the pore size distribution of the foam, making the bubble wall thickness moderate and the gaps between the bubbles smaller, thereby reducing the pathway of heat conduction. Experimental data show that foams prepared with 9727 catalyst have a thermal conductivity of about 10% lower than foams prepared with traditional catalysts, and have better thermal insulation properties (references: [27]). The Chinese Academy of Sciences has also cooperated with many home appliance manufacturers to apply the rigid foam prepared by the 9727 catalyst to refrigeration equipment such as refrigerators and air conditioners, achieving significant energy saving effects (references: [28]).

3. Development trend

With the global emphasis on energy conservation, environmental protection and sustainable development, the demand for rigid foam continues to increase, and the application prospects of 9727 catalysts are becoming more and more broad. In the future, the development trend of 9727 catalyst is mainly reflected in the following aspects:

  • Greenization: With the increasing strictness of environmental protection regulations, the development of green and environmentally friendly catalysts has become an inevitable trend in the industry. In the future, the 9727 catalyst will pay more attention to reducing the emission of harmful substances, using renewable resources as raw materials, and reducing its impact on the environment (references: [29]).

  • Multifunctionalization: The future 9727 catalyst will not only be limited to improving the durability of the foam, but will also have other functions, such as fire resistance, antibacterial, mildew resistance, etc. By introducing functional additives, the 9727 catalyst will be able to give the foam more performance advantages and meet the needs of different application scenarios (references: [30]).

  • Intelligence: With the development of intelligent manufacturing technology, the future 9727 catalyst will be combined with intelligent control systems to achieve automated production and monitoring. By monitoring reaction conditions and foam properties in real time, the 9727 catalyst will be able to dynamically adjust the catalytic efficiency to ensure the stability and consistency of product quality (references: [31]).

  • Customization: The future 9727 catalyst will pay more attention to personalized needs and develop catalysts with specific performance according to the requirements of different application scenarios. For example, for different fields such as building insulation, refrigeration equipment, and automotive interiors, catalysts with different crosslinking density, pore size distribution and thermal conductivity have been developed to meet diverse needs (references: [32]).

To sum up, the application of 9727 catalyst in rigid foam production has made significant progress, and the future development prospects are very broad. With the continuous innovation of technology and the continuous expansion of the market, 9727 catalyst will surely play an important role in more fields and promote the sustainable development of the rigid foam industry.

Conclusion

To sum up, as a highly efficient polyurethane catalyst, 9727 catalyst has significant advantages in the production of rigid foams. Through systematic research on the physical properties, chemical stability and long-term use properties of foams, we can draw the following conclusions:

  1. Enhance physical properties: The 9727 catalyst can significantly improve the density, hardness, compressive strength and thermal conductivity of the foam, ensuring that it maintains excellent mechanical properties and thermal insulation while reducing weight.

  2. Enhanced Chemical Stability: 9727 Catalyst significantly enhances its chemical stability by improving the crosslinking density and antioxidant ability of the foam, making it show better weather resistance during long-term use and anti-aging properties.

  3. Improving long-term use performance: The foam prepared by the 9727 catalyst shows excellent dimensional stability and anti-aging ability during long-term use, and can maintain good physical properties in extreme environments.

  4. Reduce production costs: The efficient catalytic performance and good physical and chemical properties of the 9727 catalyst can shorten the reaction time, reduce raw material waste, reduce production costs, and improve the economy of the enterprise during the production process. benefit.

  5. Wide application prospects: 9727 catalyst has not only been widely used in the field of building insulation, but also has great potential in the fields of refrigeration equipment, automotive interiors, etc. With the continuous innovation of technology and the continuous expansion of the market, 9727 catalyst will surely play an important role in more fields and promote the sustainable development of the rigid foam industry.

Looking forward, the development trend of 9727 catalyst will move towards green, multifunctional, intelligent and customized. By introducing green and environmentally friendly materials, functional additives and intelligent control systems, the 9727 catalyst will be able to meet the needs of different application scenarios and further improve the durability and comprehensive performance of rigid foam. We look forward to 9727 catalyst making more breakthroughs in future research and application and making greater contributions to the development of the rigid foam industry.

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The technical path to realize low-odor products by polyurethane catalyst 9727

Introduction

Polyurethane (PU) is a widely used polymer material. Due to its excellent mechanical properties, chemical resistance, wear resistance and elasticity, polyurethane (PU) is used in construction, automobile, furniture, footwear, coatings, etc. Many fields have been widely used. However, traditional polyurethane products are often accompanied by strong odors during production and use, which not only affects the user experience, but may also have a negative impact on the environment and human health. As consumers’ attention to environmental protection and health continues to increase, the market demand for low-odor polyurethane products is gradually increasing.

In recent years, significant progress has been made in the research and development of low-odor polyurethanes worldwide. As a key additive in the polyurethane synthesis process, the selection and optimization of catalysts play a crucial role in the final performance and odor control of the product. As a new high-efficiency and low-odor catalyst, the 9727 polyurethane catalyst has shown excellent performance in many application fields. This article will discuss in detail the technical path for the 9727 polyurethane catalyst to achieve low-odor products, including its chemical structure, mechanism of action, process parameter optimization, application scenarios, and future development direction.

By citing relevant domestic and foreign literature, this paper will systematically analyze the performance of 9727 catalysts in different application scenarios, and combine them with actual cases to explore its advantages and challenges in reducing the odor of polyurethane products. The article will also compare the performance of other common catalysts to further highlight the uniqueness of the 9727 catalyst. Later, this article will summarize the shortcomings of the current research and make suggestions for future research directions, in order to provide theoretical basis and technical support for the development of low-odor polyurethane products.

Chemical structure and characteristics of 9727 polyurethane catalyst

The 9727 polyurethane catalyst is a highly efficient catalyst based on organometallic compounds, mainly composed of metal ions and organic ligands. Its chemical structure can be represented as M(L)n, where M represents metal ion, L represents organic ligand, and n is the number of ligands. According to literature reports, the metal ions in the 9727 catalyst are usually zinc (Zn), bismuth (Bi) or tin (Sn), while the organic ligands are mostly carboxylates, amines or other organic molecules with specific functions. This unique chemical structure imparts a range of excellent properties to the 9727 catalyst, allowing it to exhibit excellent catalytic efficiency and low odor properties during polyurethane synthesis.

Chemical structure analysis

The specific chemical structure of the 9727 catalyst can vary according to different formulations, but its basic structural unit is a metal-ligand complex. Taking the zinc-based 9727 catalyst as an example, its chemical formula can be represented as Zn(COOH)2 or Zn(OAc)2, where COOH or OAc represents a carboxylate or root. The metal ions of such catalysts are usually located in a central position and are surrounded by multiple organic ligands to form a stableOctahedral or tetrahedral structure. This structure not only improves the stability of the catalyst, but also enhances its affinity for reactants, thereby accelerating the crosslinking reaction of polyurethane.

Physical and chemical properties

The physicochemical properties of the 9727 catalyst have an important influence on its performance in polyurethane synthesis. The following are the main physical and chemical parameters of the catalyst:

parameters Description
Appearance Slight yellow to brown transparent liquid
Density 1.05-1.15 g/cm³
Viscosity 30-50 mPa·s (25°C)
Solution Easy soluble in organic solvents such as alcohols, ketones, and esters
Thermal Stability Stable below 150°C, decomposition begins above 150°C
Active temperature range 40-80°C
pH value 6.5-7.5

From the table, it can be seen that the 9727 type catalyst has good solubility and thermal stability, and can maintain activity over a wide temperature range. In addition, its viscosity is moderate, which facilitates even mixing with other raw materials during the production process, ensuring effective dispersion and uniform distribution of the catalyst.

Catalytic Mechanism

The mechanism of action of type 9727 catalyst is mainly reflected in the following aspects:

  1. Promote the reaction between isocyanate and polyol: The 9727 catalyst can effectively reduce the reaction activation energy between isocyanate (NCO) and polyol (OH) and speed up the reaction rate. Studies have shown that the catalyst reduces the energy barrier of the reaction by forming a transition state complex with NCO groups, thereby accelerating the crosslinking reaction of polyurethane.

  2. Inhibition of side reactions: In the process of polyurethane synthesis, in addition to the main reaction, some side reactions may also be accompanied by hydrolysis reactions, oxidation reactions, etc. These side reactions not only reduce the performance of the product, but also produce volatile organic compounds (VOCs), causing odor problems. Type 9727 catalyst can regulate reaction conditions, inhibit the occurrence of side reactions and reduce the generation of VOCs.to achieve a low odor effect.

  3. Improving the selectivity of reactions: The 9727 catalyst has a high selectivity and can preferentially promote the reaction between NCO and OH without excessively promoting other side reactions. This selectivity helps improve the purity and quality of the product and reduce unnecessary impurities generation.

  4. Extend opening hours: In certain applications, such as spray-coated polyurethane foam (SPF) or cast molding, it is very important to extend the opening hours. The 9727 catalyst can appropriately extend the opening time while ensuring the reaction rate, making the operation more flexible and reducing product defects caused by improper operation.

Application of 9727 catalyst in polyurethane synthesis

The 9727 catalyst is widely used in the synthesis of various types of polyurethanes due to its unique chemical structure and excellent catalytic properties. Depending on different application scenarios, the 9727 catalyst can play different roles to meet diverse needs. The following are several typical application areas and their specific application methods.

1. Polyurethane foam

Polyurethane foam is one of the common applications in polyurethane materials and is widely used in building insulation, furniture manufacturing, automotive interiors and other fields. During the foam preparation process, the 9727 catalyst can effectively promote the reaction between isocyanate and polyol, while inhibiting the occurrence of side reactions, thereby preparing high-quality foam materials with uniform density and consistent pore size.

Application Example

In a study on building insulation materials, researchers used the 9727 catalyst to prepare rigid polyurethane foam. Experimental results show that compared with traditional catalysts, the 9727 catalyst not only significantly improves the density and thermal conductivity of the foam, but also greatly reduces the odor of the foam. Through the odor test of the foam samples, it was found that the odor intensity of the foam samples using the 9727 catalyst was only about 1/3 of that of the traditional catalyst within 24 hours, showing a significant low odor advantage.

Process parameter optimization

In order to further optimize the application effect of the 9727 catalyst in foam preparation, the researchers conducted a systematic study of the process parameters. The results show that when the catalyst dosage is 0.5-1.0 wt%, the foam has good comprehensive performance; the reaction temperature is controlled between 60-70°C, which can not only ensure the reaction rate, but also avoid excessive temperatures causing the catalyst to decompose; The choice of foaming agent is also crucial. When using cyclopentane as the foaming agent, the foam’s expansion rate and density are better than other foaming agents.

2. Polyurethane coating

Polyurethane coatings are widely used in automobiles, ships, bridges and other fields due to their excellent weather resistance, adhesion and wear resistance.anticorrosion coating. During the coating preparation process, the 9727 catalyst can effectively promote the curing reaction, shorten the drying time, and reduce VOC emissions, achieving the preparation of low-odor and environmentally friendly coatings.

Application Example

A car manufacturer has introduced the 9727 catalyst in the coating process of its new models. After practical application, the catalyst not only significantly shortens the drying time of the paint, but also greatly reduces the odor concentration of the coating workshop. Through the odor test of the car body after coating, it was found that the odor intensity of the coating using the 9727 catalyst was only about 1/4 of that of the traditional catalyst within 24 hours, which greatly improved the working environment of workers.

Process parameter optimization

In order to optimize the application effect of the 9727 catalyst in coatings, the researchers adjusted the coating formulation and coating process. The results show that when the catalyst dosage is 0.2-0.5 wt%, the curing speed and hardness of the coating reach an optimal balance; the coating temperature is controlled between 40-50°C, which can ensure the rapid curing of the coating without affecting it. The appearance quality of the coating; the use of aqueous solvents instead of traditional organic solvents can further reduce VOC emissions and achieve a more environmentally friendly coating process.

3. Polyurethane elastomer

Polyurethane elastomers have excellent elasticity and wear resistance, and are widely used in soles, conveyor belts, seals and other fields. During the elastomer preparation process, the 9727 catalyst can effectively promote crosslinking reactions, improve the mechanical properties of the material, and reduce the generation of odors, meeting the needs of high-end applications.

Application Example

A sneaker manufacturer has introduced the 9727 catalyst to the sole material of its new running shoes. After practical application, this catalyst not only significantly improves the elasticity and wear resistance of the sole, but also greatly reduces the odor of the sole. Through the odor test of finished shoes, it was found that the odor intensity of the sole using the 9727 catalyst was only about 1/5 of that of the traditional catalyst within 24 hours, which greatly improved the user’s wearing experience.

Process parameter optimization

In order to optimize the application effect of the 9727 catalyst in elastomers, the researchers adjusted the material formulation and production process. The results show that when the catalyst dosage is 0.3-0.8 wt%, the mechanical properties of the elastomer are good; the reaction temperature is controlled between 70-80°C, which can ensure the full progress of the crosslinking reaction without affecting the processing of the material. Performance; Kneading with twin screw extruder can ensure uniform dispersion of the catalyst and further improve the performance of the material.

Comparison between 9727 type catalyst and other catalysts

In the process of polyurethane synthesis, there are many types of commonly used catalysts, mainly including tertiary amines, organic tin, organic bismuth, etc. Each catalyst has its own unique advantages and limitations, so it needs to be selected according to specific needs in practical applications.To better understand the performance characteristics of the 9727 catalyst, this article will compare it in detail with other common catalysts.

1. Tertiary amine catalysts

Term amine catalysts are one of the catalysts that have been used in polyurethane synthesis early, with high catalytic activity and low cost. However, tertiary amine catalysts are prone to produce strong odors during use, especially at high temperatures, which may release volatile amine substances, causing harm to the environment and human health.

parameters 9727 Catalyst Term amine catalysts
Odor intensity Low High
Thermal Stability Stable below 150°C Easy to decompose above 120°C
Active temperature range 40-80°C 60-100°C
VOC emissions Low High
Cost Medium Low

It can be seen from the table that the 9727 catalyst is significantly better than the tertiary amine catalyst in terms of odor intensity, thermal stability and VOC emissions, and is especially suitable for application scenarios with high odor and environmental protection requirements.

2. Organotin catalyst

Organotin catalysts are one of the widely used polyurethane catalysts, with high catalytic activity and good selectivity. However, organotin catalysts have certain toxicity and long-term exposure may cause harm to human health, so they are subject to strict use restrictions in some countries and regions.

parameters 9727 Catalyst Organotin catalyst
Toxicity Low Medium
Odor intensity Low Medium
Thermal Stability Stable below 150°C Stable below 180°C
Active temperature range 40-80°C 60-100°C
Cost Medium High

It can be seen from the table that the 9727 catalyst is better than the organotin catalyst in terms of toxicity and odor intensity, and is relatively low in cost, so it has more advantages in terms of environmental protection and economics.

3. Organic bismuth catalyst

Organic bismuth catalysts have gradually attracted attention in recent years, with low toxicity and good catalytic properties. However, the catalytic activity of organic bismuth catalysts is relatively weak, especially at low temperature conditions, and the reaction rate is slow, which affects its effectiveness in some applications.

parameters 9727 Catalyst Organic bismuth catalyst
Toxicity Low Low
Odor intensity Low Low
Thermal Stability Stable below 150°C Stable below 150°C
Active temperature range 40-80°C 60-100°C
Cost Medium High

It can be seen from the table that the 9727 catalyst is better than the organic bismuth catalyst in terms of catalytic activity and active temperature ranges, and can maintain efficient catalytic performance over a wider temperature range, so it is more suitable for the reaction rate There are high-demand application scenarios.

The market prospects and development trends of 9727 catalysts

With the increasing global environmental awareness and the increasing demand for low-odor and high-performance polyurethane products from consumers, the 9727 catalyst has gradually become an important choice in the polyurethane industry with its excellent catalytic performance and low-odor characteristics. According to the forecast of market research institutions, the annual growth rate of the global polyurethane catalyst market will reach 5%-8% in the next few years, of which the market share of low-odor catalysts will expand year by year.

1. Market demand growth

In traditional applications such as construction, automobiles, and furniture, the demand for low-odor polyurethane products is growing rapidly.Especially in odor-sensitive scenarios such as interior decoration and car interior, consumers are increasingly inclined to choose environmentally friendly materials that are not odor-free. As a representative of low-odor catalysts, the 9727 catalyst can effectively meet this market demand and promote the green transformation of the polyurethane industry.

2. Promote technological innovation

With the advancement of technology, the research and development of polyurethane catalysts is also constantly making new breakthroughs. Researchers are exploring the development of more novel catalysts to further improve catalytic efficiency, reduce odor and reduce VOC emissions. For example, the emergence of new catalysts such as nanoscale catalysts and intelligent responsive catalysts is expected to bring more innovative opportunities to the polyurethane industry. As the leader in the existing technology, the 9727 catalyst will continue to lead this trend and promote the technological upgrade of the industry.

3. Policy and regulations support

In recent years, governments of various countries have issued a series of environmental protection policies and regulations to strictly limit VOC emissions and promote enterprises to adopt more environmentally friendly production processes. Against this background, the market demand for low-odor polyurethane catalysts will further expand. The 9727 catalyst complies with a number of international environmental protection standards, such as the EU REACH regulations, the US EPA standards, etc., and has broad market prospects.

4. International cooperation and competition

In the context of globalization, international cooperation and competition in the polyurethane catalyst industry are becoming increasingly fierce. Developed countries such as Europe and the United States have strong technological advantages in catalyst research and development, while emerging economies such as China and India have a leading position in market demand and production capacity. As a product with independent intellectual property rights, the 9727 catalyst not only has strong competitiveness in the domestic market, but also gradually moves to the international market and compete with internationally renowned brands.

Conclusion and Outlook

To sum up, the 9727 polyurethane catalyst has shown wide application prospects in polyurethane synthesis due to its unique chemical structure, excellent catalytic properties and low odor characteristics. Through practical applications in polyurethane foam, coatings, elastomers and other fields, the 9727 catalyst not only improves the performance of the product, but also significantly reduces odor and VOC emissions, meeting the market’s demand for environmentally friendly and low-odor polyurethane products.

Although the 9727 catalyst has achieved remarkable results, it still faces some challenges in practical applications. For example, in-depth research is still needed on how to further improve the catalytic efficiency of catalysts, reduce costs, and expand the scope of application. In the future, with the continuous emergence of new materials and new technologies, the 9727 catalyst is expected to be applied in more fields to promote the sustainable development of the polyurethane industry.

Looking forward, the development direction of the 9727 catalyst will focus on the following aspects:

  1. Further optimization of catalyst structure: By introducing new ligands or modified goldIt is an ionic, further improving the catalytic efficiency and selectivity of the catalyst, reducing the amount of the catalyst, thereby reducing the cost.

  2. Expand application fields: In addition to existing foams, coatings, elastomers and other fields, the 9727 catalyst can also be used in the synthesis of other new polyurethane materials, such as biodegradable polyurethane, conductive polyurethane, etc. , broaden its application scope.

  3. Strengthen international cooperation: Cooperate with internationally renowned enterprises and research institutions to jointly promote the technological innovation and marketing of 9727 catalysts, and enhance their competitiveness in the global market.

  4. Promote green manufacturing: In combination with the concept of green chemistry, develop more environmentally friendly and efficient polyurethane catalysts to reduce the impact on the environment and help achieve the goals of carbon peak and carbon neutrality.

In short, as a representative of low-odor catalysts, the 9727 polyurethane catalyst will play an important role in the future polyurethane industry and make greater contributions to promoting the green development of the industry.

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