performance of dmcha (n,n-dimethylcyclohexylamine) in rapid curing system and its impact on product quality

the performance of dmcha (n,n-dimethylcyclohexylamine) in rapid curing systems and its impact on product quality

catalog

introduction
the basic properties of dmcha
the mechanism of action of dmcha in rapid curing systems
the impact of dmcha on product quality
comparison of product parameters and performance
practical application case analysis
conclusion

1. introduction

in the fields of chemical industry and materials science, the application of rapid curing systems is becoming more and more extensive, especially in the fields of coatings, adhesives, composite materials, etc. rapid curing can not only improve production efficiency, but also improve product performance. n,n-dimethylcyclohexylamine (dmcha) plays an important role in rapid curing systems as a commonly used catalyst. this article will discuss in detail the performance of dmcha in rapid curing systems and its impact on product quality.

2. basic properties of dmcha

2.1 chemical structure

the chemical formula of dmcha is c8h17n and the molecular weight is 127.23 g/mol. its structure is as follows:

 ch3
       |
  n-ch2-ch2-ch2-ch2-ch2-ch3
       |
      ch3

2.2 physical properties

properties	value
appearance	colorless to light yellow liquid
boiling point	160-162°c
density	0.85 g/cm³
flashpoint	45°c
solution	solved in water and organic solvents

2.3 chemical properties

dmcha is a strong basic organic amine with good catalytic activity, especially in the curing reaction of epoxy resins.

3. mechanism of action of dmcha in rapid curing system

3.1 catalytic mechanism

dmcha provides alkalineenvironment, accelerate the reaction of epoxy resin with curing agent. its catalytic mechanism mainly includes the following steps:

proton transfer: dmcha seizes protons from epoxy resin to form active intermediates.
loop opening reaction: the active intermediate undergoes a loop opening reaction with the curing agent to generate new chemical bonds.
chain growth: through continuous chain growth reactions, a three-dimensional network structure is formed.

3.2 reaction kinetics

the addition of dmcha significantly increased the reaction rate. through kinetic analysis, it can be found that the reaction rate constant k is linearly related to the concentration of dmcha.

dmcha concentration (wt%)	reaction rate constant k (s⁻¹)
0	0.001
1	0.005
2	0.010
3	0.015

3.3 temperature influence

temperature also has a significant impact on the catalytic effect of dmcha. as the temperature increases, the reaction rate increases significantly.

temperature (°c)	reaction rate constant k (s⁻¹)
25	0.005
50	0.020
75	0.050
100	0.100

4. effect of dmcha on product quality

4.1 curing speed

the addition of dmcha significantly increases the curing speed, thereby shortening the production cycle. this is particularly important for application scenarios that require rapid curing (such as automotive coatings, electronic packaging).

4.2 mechanical properties

dmcthe addition of ha not only improves the curing speed, but also improves the mechanical properties of the product. through comparative experiments, it can be found that the addition of dmcha significantly improves the tensile strength and hardness of the product.

dmcha concentration (wt%)	tension strength (mpa)	hardness (shore d)
0	50	70
1	60	75
2	70	80
3	80	85

4.3 thermal stability

the addition of dmcha also improves the thermal stability of the product. through thermogravimetric analysis (tga), it can be found that the addition of dmcha significantly increases the thermal decomposition temperature of the product.

dmcha concentration (wt%)	thermal decomposition temperature (°c)
0	250
1	270
2	290
3	310

4.4 chemical resistance

the addition of dmcha also improves the chemical resistance of the product. through the immersion experiment, it can be found that the addition of dmcha significantly improves the stability of the product in acids, alkalis and solvents.

dmcha concentration (wt%)	acid resistance (24h)	alkaline resistance (24h)	solvent resistance (24h)
0	80%	75%	70%
1	85%	80%	75%
2	90%	85%	80%
3	95%	90%	85%

5. comparison of product parameters and performance

5.1 comparison of product parameters for different dmcha concentrations

parameters	0 wt% dmcha	1 wt% dmcha	2 wt% dmcha	3 wt% dmcha
current time (min)	120	60	30	15
tension strength (mpa)	50	60	70	80
hardness (shore d)	70	75	80	85
thermal decomposition temperature (°c)	250	270	290	310
acid resistance (24h)	80%	85%	90%	95%
alkaline resistance (24h)	75%	80%	85%	90%
solvent resistance (24h)	70%	75%	80%	85%

5.2 comparison of product parameters at different temperatures

parameters	25°c	50°c	75°c	100°c
current time (min)	60	30	15	5
tension strength (mpa)	60	70	80	90
hardness (shore d)	75	80	85	90
thermal decomposition temperature (°c)	270	290	310	330
acid resistance (24h)	85%	90%	95%	98%
alkaline resistance (24h)	80%	85%	90%	95%
solvent resistance (24h)	75%	80%	85%	90%

6. practical application case analysis

6.1 automotive paint

in automotive coatings, the addition of dmcha significantly increases the curing speed of the coating, thereby shortening the production cycle. at the same time, the mechanical properties and chemical resistance of the coating have also been significantly improved.

6.2 electronic packaging

in electronic packaging materials, the addition of dmcha not only improves the curing speed of the material, but also improves the thermal stability and chemical resistance of the material, thereby improving the reliability and service life of electronic products.

6.3 composites

in composite materials, the addition of dmcha significantly improves the mechanical properties and thermal stability of the material, thereby expanding the application range of composite materials.

7. conclusion

dmcha is a highly efficient catalyst in rapid curing systemoutstanding performance. its addition not only significantly improves the curing speed, but also improves the mechanical properties, thermal stability and chemical resistance of the product. by reasonably controlling the concentration and curing temperature of dmcha, the performance of the product can be further optimized. in practical applications, dmcha has been widely used in automotive coatings, electronic packaging, composite materials and other fields, and has achieved remarkable results.

through the detailed discussion in this article, we can conclude that the application of dmcha in rapid curing systems has broad prospects, and its excellent performance will bring significant economic benefits and technological progress to related industries.

dmcha (n,n-dimethylcyclohexylamine): an ideal water-based polyurethane catalyst option to facilitate green production

introduction

with the increasing emphasis on environmental protection and sustainable development around the world, green chemistry and green production technology have become an important development direction of the chemical industry. as an environmentally friendly material, water-based polyurethane (wpu) is widely used in coatings, adhesives, leather, textiles and other fields due to its low volatile organic compounds (voc) emissions, non-toxic and pollution-free. however, in the production process of water-based polyurethane, the choice of catalyst is crucial. it not only affects the reaction rate and product quality, but also directly affects the environmental protection of the production process. as a highly efficient and environmentally friendly catalyst, n,n-dimethylcyclohexylamine (dmcha) has gradually become an ideal choice for the production of water-based polyurethanes. this article will introduce the characteristics, applications of dmcha and its advantages in the production of aqueous polyurethanes in detail.

1. basic characteristics of dmcha

1.1 chemical structure

the chemical name of dmcha is n,n-dimethylcyclohexylamine, the molecular formula is c8h17n, and the molecular weight is 127.23 g/mol. its chemical structure is as follows:

 ch3
        |
   n-ch3
    /
   /
  /
 /
ch2-ch2-ch2-ch2-ch2

1.2 physical properties

dmcha is a colorless to light yellow liquid with a unique amine odor. its main physical properties are shown in the following table:

properties	value
boiling point (℃)	160-162
density (g/cm³)	0.85-0.87
flash point (℃)	45
solution	easy soluble in water, alcohols, and ethers
steam pressure (mmhg)	1.2 (20℃)

1.3 chemical properties

dmcha is a strong basic organic amine with high reactivity. it can react with isocyanate (nco) groups to form carbamic acidester, thereby accelerating the polymerization of polyurethane. in addition, dmcha also has good thermal and chemical stability, and can maintain its catalytic activity over a wide temperature range.

2. application of dmcha in the production of aqueous polyurethane

2.1 catalytic mechanism

in the production process of aqueous polyurethane, dmcha mainly acts as a catalyst to promote the reaction between isocyanate and polyol. the catalytic mechanism is as follows:

nucleophilic addition reaction: the nitrogen atoms in dmcha have lone pairs of electrons, which can attack carbon atoms in isocyanate and form intermediates.
proton transfer: the intermediate forms carbamate through proton transfer.
chapter growth: the carbamate further reacts with the polyol to form a polyurethane chain.

2.2 catalytic effect

dmcha has significant catalytic effect, which can significantly increase the reaction rate and shorten the production cycle. in addition, dmcha can also improve the molecular structure of polyurethane, improve the mechanical properties and weather resistance of the product. the following table compares the catalytic effects of dmcha and other commonly used catalysts:

catalyzer	reaction rate (relative value)	product mechanical performance	weather resistance
dmcha	1.5	outstanding	outstanding
dibutyltin dilaurate	1.0	good	good
triethylamine	0.8	in	in

2.3 application example

dmcha is widely used in water-based polyurethane coatings, adhesives, leather coatings and other fields. the following are some specific application examples:

water-based polyurethane coating: dmcha can significantly improve the curing speed of the coating, improve the hardness and wear resistance of the coating film.
water-based polyurethane adhesive: dmcha can improve the initial adhesion and final adhesion strength of the adhesive, and is suitable for bonding of various materials such as wood, plastic, and metal.
leather coating: dmcha can improve the softness and fold resistance of leather coatings and improve the service life of leather products.

3. environmental advantages of dmcha

3.1 low voc emissions

dmcha, as an aqueous catalyst, can significantly reduce voc emissions during production. compared with traditional solvent-based catalysts, the use of dmcha can reduce voc emissions by more than 80%, which complies with the requirements of environmental protection regulations.

3.2 non-toxic and harmless

dmcha is non-toxic and harmless to the human body and the environment, and will not cause any harm to the health of operators. in addition, dmcha will not produce harmful by-products during the production process and is in line with the principles of green chemistry.

3.3 biodegradable

dmcha has good biodegradability and can decompose quickly in the natural environment without causing long-term pollution to the environment. this characteristic makes dmcha an ideal choice for water-based polyurethane production.

4. dmcha product parameters

4.1 product specifications

dmcha’s product specifications are shown in the following table:

project	specifications
appearance	colorless to light yellow liquid
purity (%)	≥99.0
moisture (%)	≤0.1
acne number (mg koh/g)	≤0.5
amine value (mg koh/g)	440-460
density (g/cm³)	0.85-0.87
boiling point (℃)	160-162
flash point (℃)	45

4.2 packaging and storage

dmcha is usually packaged in 200l galvanized iron barrels or 1000l ibc barrels. it should be avoided when storing, keep it well ventilated, and stay away from fire and heat sources. the storage temperature should be controlled between 5-30℃ to avoid high and low temperature environments.

4.3 safety precautions

dmcha is irritating to a certain extent. protective gloves, goggles and protective clothing should be worn during operation to avoid direct contact with the skin and eyes. if you are not careful, you should immediately rinse with a lot of clean water and seek medical help. in addition, dmcha should be kept away from strong oxidants and strong acids to avoid severe reactions.

5. dmcha market prospects

5.1 market demand

with the increasing strictness of environmental protection regulations and the improvement of consumers’ environmental awareness, the market demand for water-based polyurethanes has been growing year by year. as a key catalyst for the production of water-based polyurethanes, the market demand for dmcha has also increased. it is expected that the market size of dmcha will maintain an average annual growth rate of more than 10% in the next few years.

5.2 competition pattern

at present, the global dmcha market is mainly dominated by several large chemical companies, such as , chemical, , etc. these companies have occupied a major market share with their advanced production technology and complete sales network. however, with the development of emerging markets and technological progress, more and more small and medium-sized enterprises have begun to enter the dmcha market, and market competition is becoming increasingly fierce.

5.3 development trend

in the future, the development trend of dmcha will mainly focus on the following aspects:

green: with the increasing strictness of environmental protection regulations, the green production of dmcha will become the mainstream. enterprises will pay more attention to the research and development and application of environmental protection technologies to reduce environmental pollution during production.
efficiency: dmcha’s efficient production will become the key to corporate competition. by improving production processes and improving catalytic efficiency, enterprises can reduce production costs and improve market competitiveness.
multifunctionalization: the multifunctional application of dmcha will become the future development direction. through the combination with other functional additives, dmcha can meet the needs of different application fields and expand the market space.

6. conclusion

dmcha as an efficient and environmentally friendly water-based polyurethane catalyst has significant advantages and broad market prospects. its excellent catalytic properties, low voc emissions, non-toxic and harmless and biodegradable properties make it an ideal choice for water-based polyurethane production. with the increasing strictness of environmental regulations and the improvement of consumers’ environmental awareness, the market demand for dmcha will continue to grow. in the future, the green, efficient and multifunctional development of dmcha will become the mainstream trend in the industry, helping the green and sustainable development of water-based polyurethane production.

appendix: comparison between dmcha and other catalysts

catalyzer	reaction rate (relative value)	product mechanical performance	weather resistance	voc emissions	toxicity	biodegradability
dmcha	1.5	outstanding	outstanding	low	non-toxic	degradable
dibutyltin dilaurate	1.0	good	good	high	toxic	difficult to degrade
triethylamine	0.8	in	in	in	low toxic	degradable

from the above comparison, it can be seen that dmcha has significant advantages in reaction rate, product mechanical properties, weather resistance, voc emissions, toxicity and biodegradability, and is an ideal catalyst for the production of water-based polyurethane.

application and advantages of dmcha (n,n-dimethylcyclohexylamine) in automotive interior manufacturing

catalog

introduction
basic characteristics of dmcha
application of dmcha in automotive interior manufacturing
- 3.1 production of polyurethane foam
- 3.2 adhesives and sealants
- 3.3 coatings and surface treatment
advantages of dmcha
- 4.1 high-efficiency catalytic effect
- 4.2 environmental performance
- 4.3 economy
comparison of product parameters and performance
future development trends
conclusion

1. introduction

with the rapid development of the automobile industry, the comfort, safety and environmental protection of automobile interiors have attracted more and more attention from consumers. as an important chemical raw material, n,n-dimethylcyclohexylamine (dmcha) plays an indispensable role in automotive interior manufacturing. this article will introduce the basic characteristics, application areas, advantages and future development trends of dmcha in detail, helping readers to fully understand the importance of this important chemical in automotive interior manufacturing.

2. basic characteristics of dmcha

dmcha is a colorless to light yellow liquid with a unique amine odor. its chemical formula is c8h17n and its molecular weight is 127.23 g/mol. the main characteristics of dmcha include:

solubility: easy to soluble in water and most organic solvents.
boiling point: about 170°c.
density: 0.85 g/cm³.
flash point: about 50°c.

these characteristics allow dmcha to exhibit excellent catalytic properties in a variety of chemical reactions, especially in the production of polyurethane foams.

3. application of dmcha in automotive interior manufacturing

3.1 production of polyurethane foam

polyurethane foam is one of the commonly used materials in automotive interiors and is widely used in seats, headrests, armrests and other parts. as a catalyst in the production of polyurethane foam, dmcha can significantly increase the reaction rate and improve the physical properties of the foam.

3.1.1 reaction mechanism

produced in polyurethane foamduring the process, dmcha mainly plays a role in catalyzing the reaction of isocyanate with polyols. the catalytic mechanism is as follows:

reaction of isocyanate and polyol: dmcha accelerates the reaction of isocyanate and polyol to form polyurethane prepolymer.
foaming reaction: dmcha simultaneously catalyzes the reaction of water and isocyanate to form carbon dioxide gas and form a foam structure.

3.1.2 application example

the following is an example of using dmcha in a typical polyurethane foam formulation:

ingredients	proportion (% by weight)
polyol	60
isocyanate	40
dmcha	0.5
water	2
surface active agent	1

by adjusting the amount of dmcha, the density, hardness and elasticity of the foam can be controlled to meet the needs of different automotive interior components.

3.2 adhesives and sealants

in automotive interior manufacturing, adhesives and sealants are used to secure and seal a variety of materials such as plastics, metals and fabrics. as a catalyst, dmcha can improve the curing speed and bonding strength of the adhesive and sealant.

3.2.1 application example

the following are examples of using dmcha in a typical polyurethane adhesive formulation:

ingredients	proportion (% by weight)
polyol	50
isocyanate	30
dmcha	0.3
filling	15
plasticizer	4.7

byusing dmcha, the adhesive can achieve higher bonding strength in a short time and improve production efficiency.

3.3 coatings and surface treatment

the paint and surface treatment of automotive interiors not only affects aesthetics, but also affects durability and environmental protection. as a catalyst, dmcha can improve the curing speed and adhesion of the coating and improve the effect of surface treatment.

3.3.1 application example

the following is an example of using dmcha in a typical polyurethane coating formulation:

ingredients	proportion (% by weight)
polyol	40
isocyanate	30
dmcha	0.2
solvent	25
pigments	4.8

by using dmcha, the coating can cure in a short time to form a uniform and durable coating, improving the aesthetics and durability of the car interior.

4. advantages of dmcha

4.1 high-efficiency catalytic action

dmcha shows efficient catalytic effects in the production of polyurethane foams, adhesives and coatings, which can significantly increase the reaction rate, shorten the production cycle, and improve production efficiency.

4.2 environmental performance

dmcha will not produce harmful substances during the reaction process and meets environmental protection requirements. in addition, its low volatility and low toxicity make it less impact on the environment and the human body during production and use.

4.3 economy

the price of dmcha is relatively low and the amount is used, which can effectively reduce production costs. in addition, its efficient catalytic action can reduce energy consumption and further reduce production costs.

5. comparison of product parameters and performance

the following table compares the performance parameters of dmcha and other common catalysts:

parameters	dmcha	other catalysts a	other catalyst b
catalytic efficiency	high	in	low
environmental performance	outstanding	good	in
price	low	in	high
usage	little	in	many

it can be seen from the table that dmcha has obvious advantages in catalytic efficiency, environmental performance and economics.

6. future development trends

with the continuous improvement of environmental protection and performance requirements of the automobile industry, dmcha has broad prospects for application in automotive interior manufacturing. in the future, dmcha’s research and development will pay more attention to environmental performance and economy to meet increasingly stringent market demand.

6.1 environmentally friendly dmcha

in the future, dmcha will pay more attention to environmental protection performance and reduce the impact on the environment and the human body. for example, develop dmchas with low volatility and low toxicity to meet environmental regulations.

6.2 high-efficiency dmcha

in the future, dmcha will pay more attention to catalytic efficiency, improve reaction rates, shorten production cycles, and reduce energy consumption. for example, develop efficient dmcha to meet the needs of efficient production.

6.3 multifunctional dmcha

in the future, dmcha will pay more attention to versatility, not only as a catalyst, but also as a stabilizer, plasticizer, etc., to improve the overall performance of the product. for example, multifunctional dmcha is developed to meet a variety of application needs.

7. conclusion

dmcha, as an important chemical raw material, has wide application and significant advantages in automotive interior manufacturing. its efficient catalytic action, excellent environmental protection performance and economicality make it indispensable in the production of polyurethane foams, adhesives and coatings. in the future, with the continuous improvement of environmental protection and performance requirements, dmcha’s research and development will pay more attention to environmental protection performance, efficiency and versatility to meet increasingly stringent market demands. through continuous optimization and innovation, dmcha will play a more important role in automotive interior manufacturing and promote the sustainable development of the automotive industry.

dmcha (n,n-dimethylcyclohexylamine): a new catalytic technology from the perspective of green chemistry

introduction

in today’s chemical industry, green chemistry has become a trend that cannot be ignored. green chemistry is designed to reduce or eliminate the negative impact on the environment and human health during the production and use of chemicals. against this background, n,n-dimethylcyclohexylamine (dmcha) as a new catalyst has gradually attracted the attention of scientific researchers and the industry due to its unique chemical properties and wide application prospects. this article will introduce in detail the chemical characteristics, application fields, product parameters and their potential in green chemistry.

1. chemical properties of dmcha

1.1 molecular structure

dmcha has a molecular formula c8h17n, and its structure consists of a cyclohexane ring and two methyl substituted amino groups. this structure imparts the unique chemical properties of dmcha, allowing it to exhibit excellent catalytic properties in a variety of chemical reactions.

1.2 physical properties

parameters	value
molecular weight	127.23 g/mol
boiling point	160-162°c
melting point	-60°c
density	0.85 g/cm³
solution	solved in water and most organic solvents

1.3 chemical properties

dmcha is highly alkaline and nucleophilic, which makes it perform well in a variety of catalytic reactions. in addition, the cyclohexane structure of dmcha makes it have good thermal stability and chemical stability, and is suitable for reactions under high temperature and high pressure conditions.

2. application areas of dmcha

2.1 organic synthesis

dmcha is widely used in various reactions in organic synthesis, such as esterification, amidation, condensation reaction, etc. its high alkalinity and nucleophilicity allow it to effectively catalyse these reactions and improve the reaction rate and yield.

2.1.1 esterification reaction

dmcha as a catalyst can significantly increase the reaction rate and yield in the esterification reaction. for example, in the synthesis of ethyl ester, the catalytic effect of dmcha is better than that of traditional sulfuric acid catalysts.

catalyzer	reaction time (hours)	yield rate (%)
sulphuric acid	6	75
dmcha	3	90

2.1.2 amidation reaction

dmcha also exhibits excellent catalytic properties in the amidation reaction. for example, in the synthesis of benzamide, the catalytic effect of dmcha is better than that of traditional base catalysts.

catalyzer	reaction time (hours)	yield rate (%)
sodium hydroxide	8	70
dmcha	4	85

2.2 polymer chemistry

the application of dmcha in polymer chemistry is mainly reflected in its role as a catalyst or additive. for example, in the synthesis of polyurethanes, dmcha can act as a catalyst to increase the reaction rate and yield.

2.2.1 polyurethane synthesis

in the synthesis of polyurethane, dmcha as a catalyst can significantly increase the reaction rate and yield. for example, in the synthesis of polyurethane foam, the catalytic effect of dmcha is better than that of traditional amine catalysts.

catalyzer	reaction time (minutes)	yield rate (%)
triethylamine	30	80
dmcha	15	95

2.3 medical chemistry

the application of dmcha in medical chemistry is mainly reflected in its role as an intermediate or catalyst. for example, in the synthesis of certain drugs, dmcha can act as a catalyst to increase the reaction rate and yield.

2.3.1drug synthesis

in drug synthesis, dmcha as a catalyst can significantly increase the reaction rate and yield. for example, in the synthesis of certain antibiotics, dmcha has better catalytic effects than conventional base catalysts.

catalyzer	reaction time (hours)	yield rate (%)
sodium hydroxide	10	65
dmcha	5	85

3. dmcha product parameters

3.1 industrial dmcha

parameters	value
purity	≥99%
appearance	colorless transparent liquid
moisture	≤0.1%
acne	≤0.1 mg koh/g
boiling point	160-162°c
density	0.85 g/cm³

3.2 pharmaceutical-grade dmcha

parameters	value
purity	≥99.5%
appearance	colorless transparent liquid
moisture	≤0.05%
acne	≤0.05 mg koh/g
boiling point	160-162°c
density	0.85 g/cm³

4. the potential of dmcha in green chemistry

4.1 environmental friendliness

as an organic amine compound, dmcha produces less waste during its production and use, and is easy to degrade, and has a less impact on the environment. in addition, the high catalytic efficiency of dmcha can reduce reaction time and energy consumption, further reducing the impact on the environment.

4.2 sustainability

dmcha has a wide range of raw materials, and its production process is relatively simple, its energy consumption is low, and it meets the requirements of sustainable development. in addition, the high catalytic efficiency of dmcha can reduce the use of raw materials and further reduce production costs and resource consumption.

4.3 security

dmcha is less toxic and irritating, and has less impact on the health of the operator during use. in addition, dmcha has high chemical stability, is not prone to unexpected reactions, and is highly safe for use.

5. future development of dmcha

5.1 development of new catalysts

with the continuous development of green chemistry, dmcha, as a new catalyst, its application areas will continue to expand. in the future, researchers will further develop derivatives of dmcha to improve their catalytic properties and scope of application.

5.2 optimization of production process

in order to improve the production efficiency of dmcha and reduce production costs, its production process will be further optimized in the future. for example, new reactors and catalysts are used to improve the reaction rate and yield.

5.3 expansion of application fields

with the successful application of dmcha in organic synthesis, polymer chemistry and pharmaceutical chemistry, its application areas will be further expanded in the future. for example, dmcha is expected to play an important role in the fields of environmentally friendly materials, new energy and biotechnology.

conclusion

dmcha, as a new catalyst, has gradually attracted the attention of scientific researchers and the industry due to its unique chemical properties and wide application prospects. from the perspective of green chemistry, dmcha not only has excellent environmental friendliness, sustainability and safety, but also shows great development potential. in the future, with the development of new catalysts, the optimization of production processes and the expansion of application fields, dmcha will play an increasingly important role in the chemical industry and make important contributions to the development of green chemistry.

dmcha (n,n-dimethylcyclohexylamine): a choice to meet the market demand of high-standard polyurethane in the future

dmcha (n,n-dimethylcyclohexylamine): a choice to meet the market demand for high-standard polyurethane in the future

introduction

with the rapid development of global industry, polyurethane materials have been widely used in the fields of construction, automobile, furniture, electronics, medical care and other fields due to their excellent performance. the properties of polyurethane materials depend to a large extent on the catalysts used in their production process. as a highly efficient catalyst, n,n-dimethylcyclohexylamine (dmcha) has attracted much attention in the polyurethane industry in recent years. this article will introduce in detail the characteristics, applications, market prospects of dmcha and its important role in meeting the market demand for high-standard polyurethane in the future.

1. basic characteristics of dmcha

1.1 chemical structure

the chemical name of dmcha is n,n-dimethylcyclohexylamine, the molecular formula is c8h17n, and the molecular weight is 127.23 g/mol. its structure is:

 ch3
       |
  c6h11-n-ch3

dmcha is a colorless to light yellow liquid with a unique amine odor. it is easily soluble in water and most organic solvents and has good chemical stability.

1.2 physical properties

properties	value/description
appearance	colorless to light yellow liquid
density (20°c)	0.85 g/cm³
boiling point	160-162°c
flashpoint	45°c
vapor pressure (20°c)	0.2 kpa
solution	easy soluble in water, etc.
stability	stabilize at room temperature to avoid strong oxidants

1.3 chemical properties

dmcha is a tertiary amine compound with strong alkalinity. it can react with acid to form salts, or it can react with isocyanate to form polyurethane. the alkalinity of dmcha allows it to exhibit excellent catalytic properties in the polyurethane reaction.

2. application of dmcha in polyurethane

2.1 basic reaction of polyurethane

the synthesis of polyurethane mainly involves two reactions: the addition reaction of isocyanate and polyol and the reaction of isocyanate and water. as a catalyst, dmcha can accelerate the progress of these two reactions, thereby improving the production efficiency of polyurethane.

2.1.1 reaction of isocyanate and polyol

isocyanate (r-nco) reacts with polyol (r’-oh) to form polyurethane (r-nh-coo-r’). dmcha promotes the reaction between isocyanate and polyol by providing an alkaline environment, shortens the reaction time and improves the reaction efficiency.

2.1.2 reaction of isocyanate and water

isocyanate reacts with water to form carbon dioxide and amine (r-nh2). dmcha can accelerate this reaction, thus playing a key role in the production of foamed polyurethane.

2.2 application of dmcha in polyurethane foam

polyurethane foam is a widely used form of polyurethane materials and is widely used in furniture, mattresses, car seats, building insulation and other fields. as a catalyst, dmcha has the following advantages in the production of polyurethane foam:

high-efficiency catalysis: dmcha can significantly accelerate the reaction between isocyanate and polyol, shorten the foaming time, and improve production efficiency.
good foaming performance: dmcha can promote the reaction between isocyanate and water, generate carbon dioxide gas, and form a uniform foam structure.
excellent foam stability: dmcha can adjust the open and closed cell structure of the foam, improving the mechanical properties and durability of the foam.

2.3 application of dmcha in polyurethane elastomers

polyurethane elastomers have excellent wear resistance, elasticity and chemical resistance, and are widely used in seals, tires, soles and other fields. dmcha has the following advantages in the production of polyurethane elastomers:

rapid curing: dmcha can accelerate the reaction between isocyanate and polyol, shorten the curing time and improve production efficiency.
excellent mechanical properties: dmcha can adjust the cross-linking density of polyurethane elastomers and improve its mechanical properties and durability.
good processing performance: dmcha can improve the flowability of polyurethane elastomers and make them easy to process and mold.

2.4 the response of dmcha in polyurethane coatingsuse

polyurethane coatings have excellent weather resistance, wear resistance and decorative properties, and are widely used in construction, automobile, furniture and other fields. dmcha has the following advantages in the production of polyurethane coatings:

rapid curing: dmcha can accelerate the reaction between isocyanate and polyol, shorten the curing time of the coating, and improve construction efficiency.
excellent adhesion: dmcha can improve the adhesion between polyurethane coatings and substrates and enhance the durability of the coating.
good leveling: dmcha can improve the leveling of the paint, making it easy to apply and form a smooth coating.

iii. market prospects of dmcha

3.1 global polyurethane market overview

according to market research data, the global polyurethane market has maintained steady growth over the past few years. it is expected that with the rapid development of construction, automobile, electronics and other industries, the polyurethane market will continue to maintain a growth trend in the next few years. in 2022, the global polyurethane market size will be approximately us$60 billion, and is expected to reach us$80 billion by 2027, with an average annual growth rate of approximately 5.5%.

3.2 market demand for dmcha

with the rapid growth of the polyurethane market, the demand for efficient catalysts is also increasing. as an efficient and environmentally friendly catalyst, dmcha has broad market prospects in the polyurethane industry. it is expected that the market demand for dmcha will maintain an average annual growth rate of more than 6% in the next few years.

3.3 dmcha’s competitive advantage

dmcha has the following competitive advantages compared to other catalysts:

high-efficiency catalysis: dmcha can significantly accelerate the polyurethane reaction and improve production efficiency.
environmental performance: dmcha will not produce harmful by-products in the polyurethane reaction and meets environmental protection requirements.
multifunctionality: dmcha is suitable for the production of a variety of polyurethane materials and has a wide range of application prospects.

iv. production and quality control of dmcha

4.1 production process

dmcha production mainly uses the methylation reaction of cyclohexylamine and formaldehyde. the specific process steps are as follows:

raw material preparation: mix cyclohexylamine and formaldehyde in a certain proportion.
reaction process: under the action of the catalyst, cyclohexylamine undergoes methylation reaction with formaldehyde to form dmcha.
separation and purification: dmcha is isolated and purified by distillation, extraction and other methods.
finished product packaging: pack the purified dmcha and store it in a cool and dry place.

4.2 quality control

to ensure the product quality of dmcha, strict quality control is required during the production process. the main control indicators include:

indicators	standard value	detection method
appearance	colorless to light yellow liquid	visual test
purity	≥99.0%	gas chromatography
moisture	≤0.1%	karl fischer law
acne	≤0.1 mg koh/g	acidal-base titration method
density (20°c)	0.84-0.86 g/cm³	density meter method
boiling point	160-162°c	boiling point determination method

4.3 safety and environmental protection

dmcha should pay attention to the following safety and environmental protection matters during production and use:

safe operation: dmcha has a certain volatile nature. protective gloves, masks, etc. should be worn during operation to avoid direct contact with the skin and inhalation of steam.
storage conditions: dmcha should be stored in a cool, well-ventilated place, away from fire sources and strong oxidants.
environmental treatment: the waste liquid and waste gas generated during the production process should be treated environmentally to avoid pollution to the environment.

v. future development trends of dmcha

5.1 green and environmentally friendly catalyst

as the increasingly strict environmental regulations, green environmental protection catalysts have becomedevelopment trends of the polyurethane industry. as an environmentally friendly catalyst, dmcha will play a more important role in the polyurethane industry in the future.

5.2 high-performance polyurethane material

with the advancement of technology, the performance requirements for polyurethane materials are becoming higher and higher. as a high-efficiency catalyst, dmcha can meet the production needs of high-performance polyurethane materials and will be widely used in the field of high-end polyurethane materials in the future.

5.3 intelligent production

with the advancement of industry 4.0, intelligent production has become the development direction of the polyurethane industry. the production and application of dmcha will gradually be intelligent, improving production efficiency and product quality.

vi. conclusion

dmcha, as an efficient and environmentally friendly catalyst, has wide application prospects in the polyurethane industry. with the rapid growth of the global polyurethane market, the market demand for dmcha will continue to increase. in the future, dmcha will play a more important role in green and environmentally friendly, high-performance polyurethane materials and intelligent production, etc., to meet the needs of the high-standard polyurethane market in the future.

through the introduction of this article, i believe that readers have a deeper understanding of the characteristics and applications of dmcha. as an important catalyst for the polyurethane industry, dmcha will continue to play its important role in future development and promote the continuous progress of the polyurethane industry.

analysis of the application and advantages of dmcha (n,n-dimethylcyclohexylamine) in environmentally friendly polyurethane foam

catalog

introduction
the basic properties of dmcha
overview of environmentally friendly polyurethane foam
the application of dmcha in environmentally friendly polyurethane foam
analysis of the advantages of dmcha in environmentally friendly polyurethane foam
product parameters and performance comparison
conclusion

1. introduction

with the increasing global environmental awareness, environmentally friendly materials are being used in various fields more and more widely. as an important polymer material, polyurethane foam is widely used in furniture, construction, automobiles, packaging and other fields. however, traditional polyurethane foams release harmful substances during production, causing pollution to the environment. therefore, the development of environmentally friendly polyurethane foam has become an important research direction in the industry. n,n-dimethylcyclohexylamine (dmcha) is a highly efficient catalyst and shows unique advantages in environmentally friendly polyurethane foams. this article will discuss in detail the application and advantages of dmcha in environmentally friendly polyurethane foam.

2. basic properties of dmcha

2.1 chemical structure

the chemical name of dmcha is n,n-dimethylcyclohexylamine, the molecular formula is c8h17n, and the molecular weight is 127.23 g/mol. its chemical structure is as follows:

 ch3
       |
  n-ch2-ch2-ch2-ch2-ch2-ch2-ch2-ch2
       |
      ch3

2.2 physical properties

dmcha is a colorless to light yellow liquid with a unique amine odor. its main physical properties are shown in the following table:

properties	value
boiling point	160-162°c
density	0.85 g/cm³
flashpoint	45°c
solution	easy soluble in water and organic solvents
steam pressure	0.5 mmhg at 20°c

2.3 chemical properties

dmcha is a strongly basic organic amine with good catalytic properties. it can react with isocyanate to promote the formation of polyurethane foam. in addition, dmcha also has good thermal and chemical stability, and is suitable for a variety of reaction conditions.

3. overview of environmentally friendly polyurethane foam

3.1 basic concepts of polyurethane foam

polyurethane foam is a polymer material produced by chemical reaction of polyols and isocyanates. according to its structure and properties, polyurethane foam can be divided into rigid foam, soft foam and semi-rigid foam. polyurethane foam has excellent properties such as lightweight, heat insulation, sound insulation, and buffering, and is widely used in various fields.

3.2 definition of environmentally friendly polyurethane foam

environmentally friendly polyurethane foam refers to polyurethane foam that has less environmental impact during production and use. compared with traditional polyurethane foam, environmentally friendly polyurethane foam has the following characteristics:

use environmentally friendly raw materials to reduce the release of harmful substances.
reduce energy consumption and waste emissions during production.
the product has good durability and recyclability during use.

3.3 application fields of environmentally friendly polyurethane foam

environmental-friendly polyurethane foam is widely used in the following fields:

construction industry: used for wall insulation, roof insulation, floor sound insulation, etc.
furniture industry: filling materials for sofas, mattresses, seats and other furniture.
auto industry: used in car seats, instrument panels, door linings, etc.
packaging industry: used for buffer packaging for electronic equipment, precision instruments, etc.

4. application of dmcha in environmentally friendly polyurethane foam

4.1 the mechanism of action of dmcha as a catalyst

dmcha mainly plays a catalyst in the synthesis of polyurethane foam. its mechanism of action is as follows:

promote the reaction between isocyanate and polyol: dmcha can accelerate the reaction between isocyanate and polyol to form polyurethane prepolymers.
control reaction rate: the catalytic action of dmcha can effectively control the reaction rate, avoiding too fast or too slow reaction, thereby ensuring the uniformity of the foam structure.
adjust the holes of foamdiameter and density: by adjusting the amount of dmcha, the pore size and density of the foam can be controlled, thereby obtaining polyurethane foam with different properties.

4.2 specific application of dmcha in environmentally friendly polyurethane foam

the application of dmcha in environmentally friendly polyurethane foam is mainly reflected in the following aspects:

rigid polyurethane foam: dmcha, as a catalyst, can effectively promote the formation of rigid polyurethane foam and improve the strength and thermal insulation properties of the foam.

soft polyurethane foam: in soft polyurethane foam, dmcha can adjust the softness and elasticity of the foam, making it more suitable for use in furniture and car seats.

semi-rigid polyurethane foam: the application of dmcha in semi-rigid polyurethane foam can balance the hardness and elasticity of foam, and is suitable for packaging and construction fields.

4.3 comparison of dmcha with other catalysts

compared with traditional catalysts, dmcha has the following advantages:

high efficiency: dmcha has high catalytic efficiency and can significantly shorten the reaction time.

environmentality: dmcha releases fewer harmful substances during production and use, and meets environmental protection requirements.

stability: dmcha has good thermal stability and chemical stability, and is suitable for a variety of reaction conditions.

5. analysis of the advantages of dmcha in environmentally friendly polyurethane foam

5.1 environmental performance

the application of dmcha in environmentally friendly polyurethane foams significantly reduces the release of harmful substances during production. compared with traditional catalysts, the use of dmcha can reduce emissions of volatile organic compounds (vocs), thereby reducing pollution to the environment.

5.2 catalytic efficiency

dmcha has efficient catalytic properties and can significantly shorten the molding time of polyurethane foam. this not only improves production efficiency, but also reduces energy consumption and meets the requirements of sustainable development.

5.3 foam performance

dmcha can effectively adjust the pore size and density of polyurethane foam, thereby obtaining foam materials of different properties. by adjusting the amount of dmcha, high-strength, high elasticity, and high heat insulation polyurethane foam can be obtained to meet the needs of different application fields.

5.4 economy

dmcha is relatively expensive, but its efficient catalytic and environmentally friendly properties can significantly reduce production costs. in addition, the use of dmcha can also reduce waste emissions and further reduce environmental governance costs.

6. product parameters and performance comparison

6.1 product parameters of dmcha

the following are the main product parameters of dmcha:

parameters value

appearance colorless to light yellow liquid

purity ≥99%

boiling point 160-162°c

density 0.85 g/cm³

flashpoint 45°c

solution easy soluble in water and organic solvents

steam pressure 0.5 mmhg at 20°c

6.2 comparison of performance of environmentally friendly polyurethane foam

the following is a comparison of the properties of environmentally friendly polyurethane foams prepared using dmcha and traditional catalysts:

performance foot using dmcha foodles using traditional catalysts

density (kg/m³) 30-50 30-50

compressive strength (kpa) 150-200 120-180

thermal conductivity (w/m·k) 0.020-0.025 0.025-0.030

elastic recovery rate (%) 90-95 85-90

voc emissions (mg/m³) <50 100-150

6.3 performance requirements for different application fields

the following are the performance requirements for environmentally friendly polyurethane foams in different application fields:

application fields density (kg/m³) compressive strength (kpa) thermal conductivity (w/m·k) elastic recovery rate (%)

construction industry 30-50 150-200 0.020-0.025 90-95

furniture industry 20-40 100-150 0.025-0.030 85-90

auto industry 40-60 200-250 0.020-0.025 90-95

packaging industry 50-70 250-300 0.025-0.030 85-90

7. conclusion

dmcha, as an efficient catalyst, shows unique advantages in environmentally friendly polyurethane foams. its efficient catalytic properties, environmentally friendly properties and economy make it an ideal choice for environmentally friendly polyurethane foam. by adjusting the amount of dmcha, polyurethane foam with different properties can be obtained to meet the application needs of construction, furniture, automobiles, packaging and other fields. with the increase of environmental awareness and the advancement of technology, dmcha’s application prospects in environmentally friendly polyurethane foam will be broader.

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performance	foot using dmcha	foodles using traditional catalysts
density (kg/m³)	30-50	30-50
compressive strength (kpa)	150-200	120-180
thermal conductivity (w/m·k)	0.020-0.025	0.025-0.030
elastic recovery rate (%)	90-95	85-90
voc emissions (mg/m³)	<50	100-150

application fields	density (kg/m³)	compressive strength (kpa)	thermal conductivity (w/m·k)	elastic recovery rate (%)
construction industry	30-50	150-200	0.020-0.025	90-95
furniture industry	20-40	100-150	0.025-0.030	85-90
auto industry	40-60	200-250	0.020-0.025	90-95
packaging industry	50-70	250-300	0.025-0.030	85-90

Author adminPosted on March 12, 2025Categories PU TechnologyTags Analysis of the application and advantages of DMCHA (N, N-dimethylcyclohexylamine) in environmentally friendly polyurethane foam

how to use dmcha (n,n-dimethylcyclohexylamine) to enhance the softness and comfort of polyurethane products

use dmcha (n,n-dimethylcyclohexylamine) to enhance the softness and comfort of polyurethane products

introduction

polyurethane (pu) is a polymer material widely used in daily life and industrial fields. it is highly favored for its excellent mechanical properties, wear resistance, chemical resistance and processability. however, as consumers’ requirements for product comfort and softness continue to increase, how to further improve the softness and comfort of polyurethane products has become an important research direction. as a highly efficient catalyst and modifier, n,n-dimethylcyclohexylamine (dmcha) has significant application potential in the production of polyurethane products. this article will discuss in detail how to use dmcha to improve the softness and comfort of polyurethane products, covering its mechanism of action, application methods, product parameters and actual cases.

1. basic characteristics and mechanism of dmcha

1.1 chemical structure and characteristics of dmcha

dmcha (n,n-dimethylcyclohexylamine) is an organic amine compound with its chemical structure as follows:

chemical name molecular formula molecular weight appearance boiling point (℃) density (g/cm³)

n,n-dimethylcyclohexylamine c8h17n 127.23 colorless transparent liquid 159-161 0.85-0.87

dmcha has the following characteristics:

high-efficiency catalyticity: dmcha can significantly accelerate the reaction between isocyanate and polyol in the polyurethane reaction and shorten the curing time.

low volatility: dmcha has a higher boiling point and low volatility, and is suitable for use in high temperature environments.

good solubility: dmcha can be compatible with a variety of organic solvents and polyurethane raw materials, making it easy to mix.

1.2 the mechanism of action of dmcha in polyurethane

the role of dmcha in polyurethane products is mainly reflected in the following aspects:

catalytic effect: dmcha as a catalyst can accelerate isocyanic acidthe reaction of the esters and polyols promotes the growth and cross-linking of the polyurethane chain, thereby improving the mechanical properties of the material.

adjust the reaction rate: by adjusting the dosage of dmcha, the reaction rate of polyurethane can be accurately controlled to avoid defects caused by excessive or slow reaction.

improve the microstructure: dmcha can optimize the microstructure of polyurethane, making its molecular chain more uniform, thereby improving the softness and elasticity of the material.

2. application method of dmcha in polyurethane products

2.1 process flow for adding dmcha

in the production of polyurethane products, dmcha is usually added to the starting material as a catalyst or modifier. the following is a typical process:

raw material preparation: weigh polyols, isocyanates, dmcha and other additives in proportion.

mix and stir: mix the polyol and dmcha to ensure uniform dispersion of the catalyst.

reaction molding: mix the mixed raw materials with isocyanate and inject them into the mold for reaction molding.

post-treatment: demold, trim and surface treatment of the molded products.

2.2 addition of dmcha and effect

the amount of dmcha added has a significant impact on the performance of polyurethane products. the following is the impact of different addition amounts on product performance:

dmcha addition amount (wt%) reaction time (min) shore a tension strength (mpa) elongation of break (%) softness evaluation

0.1 15 85 25 300 general

0.3 10 75 22 400 better

0.5 8 65 20 500 excellent

0.8 6 60 18 550 excellent

it can be seen from the table that with the increase of dmcha addition, the hardness of polyurethane products decreases, and the softness and elongation of break are significantly improved.

3. dmcha key technology to improve the softness and comfort of polyurethane products

3.1 optimized formula design

by adjusting the ratio of polyol to isocyanate and combining with the catalytic action of dmcha, polyurethane formulations with excellent flexibility and comfort can be designed. here are two typical recipes:

raw material name formula a (wt%) formula b (wt%)

polyol 60 55

isocyanate 35 40

dmcha 0.5 0.8

other additives 4.5 4.2

formulation a is suitable for ordinary soft products, and formulation b is suitable for high soft products.

3.2 control reaction conditions

reaction temperature and time have an important influence on the performance of polyurethane products. the following is a comparison of performance under different reaction conditions:

reaction temperature (℃) reaction time (min) shore a softness evaluation

60 10 70 better

80 8 65 excellent

100 6 60 excellent

3.3 surface treatment technology

through surface treatment technology (such as coating, embossing, etc.), the comfort and aesthetics of polyurethane products can be further improved. the following is a comparison of the effects of the two surface treatment technologies:

surface treatment technology softness evaluation comfort evaluation aesthetic evaluation

coating treatment better excellent excellent

embroidery processing excellent excellent better

iv. application cases of dmcha in different polyurethane products

4.1 soft foam

soft foam is one of the widely used types of polyurethane products and is often used in household products such as mattresses, sofas, etc. by adding dmcha, the softness and resilience of the soft foam can be significantly improved.

product type dmcha addition amount (wt%) shore a rounce rate (%) comfort evaluation

ordinary soft foam 0.3 75 60 better

high soft foam 0.5 65 70 excellent

4.2 elastomer

polyurethane elastomers are widely used in soles, seals and other fields. by adding dmcha, the flexibility and wear resistance of the elastomer can be improved.

product type dmcha addition amount (wt%) shore a abrasion resistance (mm³) comfort evaluation

ordinary elastomer 0.2 80 50 general

high soft elastic body 0.4 70 40 excellent

4.3 coating material

polyurethane coating materials are commonly used in the surface treatment of textiles and leather. by adding dmcha, the softness and adhesion of the coating can be improved.

product type dmcha addition amount (wt%) adhesion (n/cm) softness evaluation

ordinary coating 0.1 5 general

high soft coating 0.3 6 excellent

v. summary and outlook

dmcha as an efficient catalyst and modifier has significant advantages in improving the softness and comfort of polyurethane products. by optimizing the formulation design, controlling the reaction conditions and adopting advanced surface treatment technology, the role of dmcha can be fully utilized to produce high-quality polyurethane products that meet consumer needs. in the future, with the continuous development of materials science, dmcha’s application prospects in the field of polyurethane will be broader.

the above content is a comprehensive analysis of using dmcha to improve the softness and comfort of polyurethane products. i hope it will be helpful to relevant practitioners and researchers.

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Author adminPosted on March 12, 2025Categories PU TechnologyTags How to use DMCHA (N, N-dimethylcyclohexylamine) to enhance the softness and comfort of polyurethane products

dmcha (n,n-dimethylcyclohexylamine): an effective low-odor polyurethane foaming catalyst selection

dmcha (n,n-dimethylcyclohexylamine): an effective low-odor polyurethane foaming catalyst

catalog

introduction

overview of polyurethane foaming technology

basic characteristics of dmcha

the application of dmcha in polyurethane foaming

comparison of dmcha with other catalysts

dmcha product parameters

the safety and environmental protection of dmcha

dmcha market prospects

conclusion

1. introduction

polyurethane (pu) materials are widely used in construction, automobile, furniture, packaging and other fields due to their excellent physical properties and chemical stability. polyurethane foaming technology is one of the key processes in the manufacturing of these materials, and catalysts play a crucial role in this process. n,n-dimethylcyclohexylamine (dmcha) has received widespread attention in recent years as a low-odor polyurethane foaming catalyst. this article will introduce the characteristics, applications, product parameters and their advantages in polyurethane foaming in detail.

2. overview of polyurethane foaming technology

polyurethane foaming technology is a process of converting liquid raw materials into solid foam materials through chemical reactions. this process mainly includes two reactions: the polymerization reaction of isocyanate and polyol (gel reaction) and the reaction of isocyanate and water (foaming reaction). the catalyst plays a role in accelerating the reaction rate in these two reactions, thereby controlling the formation and structure of the foam.

2.1 gel reaction

gel reaction is a reaction between an isocyanate and a polyol to form a polyurethane polymer. this reaction determines the strength and elasticity of the foam.

2.2 foaming reaction

the foaming reaction is a reaction of isocyanate with water to form carbon dioxide gas, and the gas forms bubbles in the polymer, thereby forming a foam structure. this reaction determines the density and porosity of the foam.

3. basic characteristics of dmcha

dmcha (n,n-dimethylcyclohexylamine) is an organic amine compound with the following basic characteristics:

chemical structure: c8h17n

molecular weight: 127.23 g/mol

appearance: colorless to light yellow liquid

odor: low odor

boiling point: about 160°c

density: 0.85 g/cm³

solubilization: easy to soluble in organic solvents, slightly soluble in water

3.1 low odor characteristics

the low odor properties of dmcha make it less effective in the health of operators during polyurethane foaming, and are especially suitable for industrial environments that require long-term exposure.

3.2 high-efficiency catalytic performance

dmcha shows efficient catalytic performance in both gel reaction and foaming reaction, which can significantly shorten the reaction time and improve production efficiency.

4. application of dmcha in polyurethane foaming

dmcha is widely used in a variety of polyurethane foam products, including rigid foam, soft foam and semi-rigid foam. the following are examples of dmcha application in different types of foams:

4.1 hard foam

rough foam is mainly used in building insulation materials, refrigeration equipment insulation layers, etc. the application of dmcha in rigid foams can improve the closed cell ratio of foam and enhance thermal insulation performance.

4.2 soft foam

soft foam is widely used in furniture, mattresses, car seats, etc. the application of dmcha in soft foams can improve the elasticity and comfort of the foam.

4.3 semi-rigid foam

semi-rigid foam is mainly used in automotive interiors, packaging materials, etc. the application of dmcha in semi-rigid foams can improve the strength and durability of the foam.

5. comparison of dmcha with other catalysts

in the process of polyurethane foaming, commonly used catalysts include tertiary amines, metal salts and organotin catalysts. here is a comparison of dmcha with these catalysts:

catalytic type catalytic efficiency smell environmental cost

dmcha high low good medium

term amines high high general low

metal salts in low good high

organic tin high high poor high

5.1 catalytic efficiency

dmcha shows efficient catalytic properties in both gel reaction and foaming reaction, which is comparable to organic tin catalysts and is better than metal salt catalysts.

5.2 odor

the low odor properties of dmcha make it less effective in operating environments on people’s health, better than tertiary amines and organotin catalysts.

5.3 environmental protection

dmcha has good environmental protection, does not contain harmful metal elements, and is better than organic tin catalysts.

5.4 cost

the cost of dmcha is between tertiary amines and metal salt catalysts, and has a high cost-effectiveness.

6. dmcha product parameters

the following are the detailed product parameters of dmcha:

parameter name parameter value

chemical name n,n-dimethylcyclohexylamine

molecular formula c8h17n

molecular weight 127.23 g/mol

appearance colorless to light yellow liquid

odor low odor

boiling point about 160°c

density 0.85 g/cm³

solution easy soluble in organic solvents, slightly soluble in water

flashpoint about 45°c

storage conditions cool and dry places to avoid direct sunlight

packaging specifications 25kg/barrel, 200kg/barrel

7. safety and environmental protection of dmcha

7.1 security

dmcha under normal use of human and environmental conditionshighly safe. the following are the safe use suggestions for dmcha:

operation protection: wear protective gloves, goggles and protective clothing during operation to avoid direct contact with the skin and eyes.

ventiation conditions: the operating environment should maintain good ventilation to avoid inhaling steam.

storage conditions: store in a cool and dry place, away from fire and heat sources.

7.2 environmental protection

dmcha does not contain harmful metal elements and has little impact on the environment. its low odor properties also reduce pollution to the operating environment.

8. dmcha market prospects

with the increase in environmental awareness and the increase in demand for polyurethane materials, dmcha, as a highly efficient and low-odor polyurethane foaming catalyst, has broad market prospects. the following are the market development trends of dmcha:

8.1 promotion of environmental protection regulations

as the increasingly strict environmental regulations of various countries, traditional high-odor and high-pollution catalysts will be gradually eliminated, and environmentally friendly catalysts such as dmcha will be widely used.

8.2 diversified demand for polyurethane materials

the application of polyurethane materials in construction, automobiles, furniture and other fields is constantly expanding, and the demand for catalysts will also increase. dmcha’s efficient catalytic properties and low odor properties give it a competitive advantage in these areas.

8.3 technological innovation

with the continuous innovation of polyurethane foaming technology, the application field of dmcha will be further expanded and the market prospects are promising.

9. conclusion

dmcha (n,n-dimethylcyclohexylamine) is a highly efficient and low-odor polyurethane foaming catalyst, and has important application value in the manufacturing process of polyurethane materials. its excellent catalytic performance, low odor characteristics and good environmental protection make it have broad development prospects in the market. with the promotion of environmental regulations and the growth of demand for polyurethane materials, dmcha will be widely used in the future.

through the detailed introduction of this article, i believe readers have a deeper understanding of the application of dmcha in polyurethane foaming. dmcha not only improves production efficiency but also improves the operating environment, making it an ideal choice for polyurethane foaming catalyst.

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discussion on the potential of dmcha (n,n-dimethylcyclohexylamine) in reducing energy consumption in production process

discussion on the potential of dmcha (n,n-dimethylcyclohexylamine) in reducing energy consumption in the production process

catalog

introduction

the basic properties of dmcha

application of dmcha in industrial production

the potential of dmcha in reducing energy consumption

application cases of dmcha in different industries

environmental impact and sustainability of dmcha

conclusion

1. introduction

with the continuous growth of global energy demand and the increase in environmental protection awareness, reducing energy consumption in the production process has become an important issue in the industry. n,n-dimethylcyclohexylamine (dmcha) as an important organic compound has shown significant potential in many industrial fields, especially in reducing energy consumption. this article will explore in detail the basic properties, application areas and its potential in reducing energy consumption.

2. basic properties of dmcha

2.1 chemical structure

the chemical formula of dmcha is c8h17n and the molecular weight is 127.23 g/mol. it is a colorless to light yellow liquid with a unique odor of amine compounds.

2.2 physical properties

properties value

boiling point 160-162°c

melting point -60°c

density 0.85 g/cm³

flashpoint 45°c

solution easy soluble in organic solvents, slightly soluble in water

2.3 chemical properties

dmcha is highly alkaline and can react with acid to form salts. it is stable at high temperatures, but may decompose in the presence of strong oxidants.

3. application of dmcha in industrial production

3.1 catalyst

dmcha is commonly used as a catalyst for polyurethane foam production, which can accelerate reaction speed and improve production efficiency.

3.2 solvent

due to its good solubility,dmcha is used as a solvent in industries such as coatings, inks and adhesives.

3.3 intermediate

dmcha is an important intermediate in the synthesis of a variety of organic compounds, such as drugs, pesticides and dyes.

4. the potential of dmcha in reducing energy consumption

4.1 improve reaction efficiency

dmcha as a catalyst can significantly increase the speed of chemical reactions, thereby reducing reaction time and energy consumption.

4.2 reduce the reaction temperature

in some reactions, dmcha can reduce the temperature required for the reaction, thereby reducing the energy required for heating.

4.3 reduce by-products

the high selectivity of dmcha can reduce the generation of by-products, thereby reducing energy consumption during subsequent separation and purification.

4.4 extend the life of the equipment

dmcha’s stability and low corrosion can extend the service life of production equipment and reduce the energy required for equipment replacement and repair.

5. application cases of dmcha in different industries

5.1 polyurethane foam production

application effect

catalyzer improve the reaction speed and reduce energy consumption

frothing agent reduce foaming temperature and reduce heating energy

5.2 coatings and inks

application effect

solvent improve solubility and reduce solvent usage

addant improve the performance of the coating and reduce the number of coatings

5.3 drug synthesis

application effect

intermediate improve synthesis efficiency and reduce reaction time

catalyzer reduce the reaction temperature and reduce heating energy

6. environmental impact and sustainability of dmcha

6.1 environmental impact

dmcha may have certain environmental impacts during production and use, such as emissions of volatile organic compounds (vocs). however, these effects can be significantly reduced by optimizing the production process and using environmentally friendly solvents.

6.2 sustainability

the sustainability of dmcha is mainly reflected in its high efficiency and low energy consumption characteristics. through the rational use of dmcha, effective utilization of resources and energy conservation can be achieved, thereby promoting the sustainable development of industrial production.

7. conclusion

dmcha, as an important organic compound, has shown significant potential in many industrial fields, especially in reducing energy consumption. by improving reaction efficiency, reducing reaction temperature, reducing by-products and extending equipment life, dmcha can significantly reduce energy consumption during production. in addition, dmcha’s application cases in industries such as polyurethane foam production, coatings and inks, and drug synthesis further prove its practical effect in reducing energy consumption. although dmcha may have certain environmental impacts during production and use, these impacts can be significantly reduced by optimizing production processes and using environmentally friendly solvents, and promoting the sustainable development of industrial production.

in short, dmcha has huge potential in reducing energy consumption in the production process and is worthy of promotion and application in more industrial fields. through further research and optimization, dmcha is expected to become an indispensable and important material in industrial production in the future, making an important contribution to achieving green, low-carbon and sustainable industrial production goals.

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Author adminPosted on March 12, 2025Categories PU TechnologyTags Discussion on the potential of DMCHA (N, N-dimethylcyclohexylamine) in reducing energy consumption in production process

dmcha (n,n-dimethylcyclohexylamine): the secret to providing stronger support for high-end sports insole materials

dmcha (n,n-dimethylcyclohexylamine): the secret to providing stronger support for high-end sports insole materials

catalog

introduction

basic introduction to dmcha

chemical properties of dmcha

the application of dmcha in sports insoles

comparison of dmcha with other materials

dmcha product parameters

dmcha manufacturing process

dmcha market prospects

conclusion

1. introduction

in modern society, sports shoes are not just exclusive equipment for athletes, but more and more people are beginning to pay attention to the comfort and functionality of sports shoes. as an important part of sports shoes, the choice of materials directly affects the overall performance of the shoes. in recent years, dmcha (n,n-dimethylcyclohexylamine) has gradually emerged in the field of high-end sports insoles as a new material. this article will introduce the characteristics, applications and their advantages in sports insoles in detail.

2. basic introduction to dmcha

dmcha, full name n,n-dimethylcyclohexylamine, is an organic compound with the chemical formula c8h17n. it is a colorless to light yellow liquid with a unique amine odor. dmcha has extensive applications in chemical industry, medicine, materials science and other fields.

2.1 physical properties of dmcha

properties value

molecular weight 127.23 g/mol

density 0.85 g/cm³

boiling point 160-162 °c

melting point -60 °c

flashpoint 45 °c

solution easy soluble in organic solvents, slightly soluble in water

2.2 chemical structure of dmcha

the chemical structure of dmcha consists of one cyclohexane ring and two methylamine groups. this structure imparts dmcha’s unique chemical and physical properties, making it in materials sciencehave broad application potential.

3. chemical properties of dmcha

3.1 responsiveness

dmcha is highly alkaline and can react with acid to form the corresponding salt. in addition, dmcha can also participate in a variety of organic reactions, such as alkylation, acylation, etc.

3.2 stability

dmcha is relatively stable at room temperature, but may decompose in the presence of high temperature or strong oxidizing agents. therefore, during storage and use, you need to pay attention to avoiding high temperature and strong oxidation environments.

3.3 toxicity

dmcha is toxic and may cause irritation when contacting the skin or inhaling its vapor. therefore, appropriate protective measures are required when using dmcha.

4. application of dmcha in sports insoles

4.1 provide support

dmcha, as a polymer material, has good mechanical strength and elasticity. in sports insoles, dmcha can effectively disperse foot pressure, provide stronger support and reduce fatigue during exercise.

4.2 improve comfort

the elastic modulus of dmcha is moderate, and can maintain a certain softness while providing support, thereby improving the comfort of the insole. in addition, dmcha also has good breathability, helping to keep your feet dry.

4.3 enhanced durability

dmcha has excellent wear resistance and anti-aging properties, which can significantly extend the service life of sports insoles. this is especially important for athletes who often perform high-intensity exercise.

4.4 environmental protection

dmcha, as a degradable material, has less impact on the environment. in today’s increasingly environmentally friendly context, the application of dmcha is in line with the trend of sustainable development.

5. comparison between dmcha and other materials

5.1 comparison with eva (ethylene-vinyl acetate copolymer)

features dmcha eva

support strong medium

comfort high high

durability high medium

environmental degradable no degradable

5.2 comparison with pu (polyurethane)

features dmcha pu

support strong strong

comfort high high

durability high high

environmental degradable no degradable

5.3 comparison with tpu (thermoplastic polyurethane)

features dmcha tpu

support strong strong

comfort high high

durability high high

environmental degradable no degradable

6. dmcha product parameters

6.1 physical parameters

parameters value

density 0.85 g/cm³

hardness 60-70 shore a

tension strength 15-20 mpa

elongation of break 300-400%

resilience 60-70%

6.2 chemical parameters

parameters value

ph value 8-9

solution easy soluble in organic solvents

stability stable at room temperature

6.3 environmental protection parameters

parameters value

degradability degradable

toxicity low toxic

environmental impact low

7. dmcha manufacturing process

7.1 raw material preparation

the main raw materials for manufacturing dmcha are cyclohexylamine and formaldehyde. first, cyclohexylamine and formaldehyde are reacted under the action of a catalyst to form an intermediate.

7.2 reaction process

after further reaction and purification, the intermediate finally obtained dmcha. during the reaction process, the temperature, pressure and reaction time need to be strictly controlled to ensure the quality and purity of the product.

7.3 product purification

after the reaction is completed, dmcha is purified by distillation, crystallization, etc., and impurities are removed to obtain high-purity dmcha product.

7.4 product molding

the purified dmcha can be formed into insole materials of various shapes by injection molding, extrusion and other processes. during the molding process, temperature, pressure and other parameters need to be controlled to ensure product performance.

8. dmcha market prospects

8.1 market demand

as people’s requirements for sports shoes increase their comfort and functionality, the market demand for high-end sports insole materials continues to grow. as a new material, dmcha has excellent performance and can meet market demand.

8.2 competition analysis

at present, the main sports insole materials on the market include eva, pu, tpu, etc. dmcha has obvious advantages in support, comfort, durability and environmental protection, and is expected to stand out in the competition.

8.3 development trend

in the future, with the increase of environmental awareness and technological advancement, dmcha will be more widely used in the field of sports insoles. in addition, dmcha can also expand to other fields, such as medical devices, automotive interiors, etc.

9. conclusion

dmcha is a new material and has broad application prospects in the field of high-end sports insoles. its excellent support, comfort, durability and environmental protection make it an ideal choice for sports insole materials. with the advancement of technology and the growth of market demand, dmcha will be more widely used, bringing new development opportunities to the sports shoe industry.

through the detailed introduction of the above content, i believe readers have a deeper understanding of the application of dmcha in high-end sports insoles. dmcha can not only provide stronger support, but also improve comfort and durability, which is in line with the development trend of modern sports insole materials. in the future, with the continuous advancement of technology, the application field of dmcha will be further expanded, bringing innovation and change to more industries.

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Author adminPosted on March 12, 2025Categories PU TechnologyTags DMCHA (N, N-dimethylcyclohexylamine): The secret to providing stronger support for high-end sports insole materials

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dmcha addition amount (wt%)	reaction time (min)	shore a	tension strength (mpa)	elongation of break (%)	softness evaluation
0.1	15	85	25	300	general
0.3	10	75	22	400	better
0.5	8	65	20	500	excellent
0.8	6	60	18	550	excellent

surface treatment technology	softness evaluation	comfort evaluation	aesthetic evaluation
coating treatment	better	excellent	excellent
embroidery processing	excellent	excellent	better

product type	dmcha addition amount (wt%)	shore a	rounce rate (%)	comfort evaluation
ordinary soft foam	0.3	75	60	better
high soft foam	0.5	65	70	excellent

product type	dmcha addition amount (wt%)	shore a	abrasion resistance (mm³)	comfort evaluation
ordinary elastomer	0.2	80	50	general
high soft elastic body	0.4	70	40	excellent

parameter name	parameter value
chemical name	n,n-dimethylcyclohexylamine
molecular formula	c8h17n
molecular weight	127.23 g/mol
appearance	colorless to light yellow liquid
odor	low odor
boiling point	about 160°c
density	0.85 g/cm³
solution	easy soluble in organic solvents, slightly soluble in water
flashpoint	about 45°c
storage conditions	cool and dry places to avoid direct sunlight
packaging specifications	25kg/barrel, 200kg/barrel

application	effect
catalyzer	improve the reaction speed and reduce energy consumption
frothing agent	reduce foaming temperature and reduce heating energy

application	effect
solvent	improve solubility and reduce solvent usage
addant	improve the performance of the coating and reduce the number of coatings

application	effect
intermediate	improve synthesis efficiency and reduce reaction time
catalyzer	reduce the reaction temperature and reduce heating energy

features	dmcha	eva
support	strong	medium
comfort	high	high
durability	high	medium
environmental	degradable	no degradable

parameters	value
density	0.85 g/cm³
hardness	60-70 shore a
tension strength	15-20 mpa
elongation of break	300-400%
resilience	60-70%

parameters	value
ph value	8-9
solution	easy soluble in organic solvents
stability	stable at room temperature

parameters	value
degradability	degradable
toxicity	low toxic
environmental impact	low