Catalyst PC-8: Opening a new chapter in polyurethane leather manufacturing

Catalytic PC-8: Opening a new chapter in polyurethane leather manufacturing

Introduction

Polyurethane leather (PU leather) is an important synthetic material and is widely used in clothing, footwear, furniture, automotive interiors and other fields. With the increasing demand for high-performance and environmentally friendly materials in the market, the manufacturing process of polyurethane leather is also constantly improving. As a new high-efficiency catalyst, the catalyst PC-8 is bringing revolutionary changes to the manufacturing of polyurethane leather. This article will introduce in detail the characteristics, application of the catalyst PC-8 and its important role in the manufacturing of polyurethane leather.

Overview of Catalyst PC-8

1.1 Definition of Catalyst PC-8

Catalytic PC-8 is a highly efficient catalyst specially designed for polyurethane reaction. It is mainly used to promote the reaction between isocyanate and polyol, thereby accelerating the formation of polyurethane. Compared with traditional catalysts, PC-8 has higher catalytic efficiency and better environmental performance.

1.2 Main features of catalyst PC-8

High-efficiency Catalysis: PC-8 can significantly increase the rate of polyurethane reaction and shorten the production cycle.
Environmental Performance: PC-8 does not contain heavy metals and harmful substances, and meets environmental protection requirements.
Good stability: PC-8 can maintain stable catalytic performance under both high and low temperature conditions.
Wide application scope: PC-8 is suitable for a variety of polyurethane systems, including soft, hard and semi-rigid polyurethanes.

1.3 Chemical structure of catalyst PC-8

The chemical structure of the catalyst PC-8 has been carefully designed to show excellent catalytic activity in the polyurethane reaction. Its molecular structure contains multiple active groups, which can form stable intermediates with isocyanate and polyols, thereby accelerating the progress of the reaction.

Application of Catalyst PC-8 in the manufacture of polyurethane leather

2.1 Manufacturing process of polyurethane leather

The manufacturing process of polyurethane leather mainly includes the following steps:

Raw Material Preparation: Select suitable isocyanates, polyols, solvents and additives.
Mixed Reaction: Mixing isocyanate and polyol under the action of a catalyst to form a polyurethane prepolymer.
Coating and forming: Coating the polyurethane prepolymer is coated on the substrate and cured by heating to form a polyurethane film.
Post-treatment: Perform post-treatment of polyurethane films such as embossing, dyeing, and matte to make them have the desired surface effect and performance.

2.2 The role of catalyst PC-8 in the manufacture of polyurethane leather

Catalytic PC-8 plays a crucial role in the manufacturing of polyurethane leather, mainly reflected in the following aspects:

Accelerating reaction: PC-8 can significantly increase the reaction rate between isocyanate and polyol, shorten the production cycle, and improve production efficiency.
Improving Performance: PC-8 can promote the orderly arrangement of polyurethane molecular chains and improve the mechanical properties and durability of polyurethane leather.
Environmental Advantages: PC-8 does not contain heavy metals and harmful substances, meets environmental protection requirements, and helps in the production of environmentally friendly polyurethane leather.

2.3 Application examples of catalyst PC-8

The following are some specific application examples of catalyst PC-8 in polyurethane leather manufacturing:

Application Fields	Specific application	Effect
Clothing Leather	Used to produce high-end clothing leather	Improve the softness and wear resistance of leather
Footwear leather	Used to produce sports shoes	Enhance the elasticity and tear resistance of leather
Furniture Leather	Used to produce sofa leather	Improve the weather resistance and aging resistance of leather
Auto interior leather	Used to produce car seat leather	Enhance the stain resistance and easy cleaning of leather

Product parameters of catalyst PC-8

3.1 Physical and chemical properties

parameter name	value	Unit
Appearance	Colorless transparent liquid	–
Density	1.05	g/cm³
Viscosity	50	mPa·s
Flashpoint	120	℃
Solution	Easy soluble in organic solvents	–

3.2 Catalytic properties

parameter name	value	Unit
Catalytic Efficiency	95%	–
Reaction temperature	50-80	℃
Reaction time	10-30	min
Applicable System	Soft, hard, semi-rigid polyurethane	–

3.3 Environmental performance

parameter name	value	Unit
Heavy Metal Content	Not detected	ppm
Hazardous substance content	Not detected	ppm
Volatile organic compounds (VOC) content	0.1	g/L

Advantages and challenges of catalyst PC-8

4.1 Advantages

High-efficiency Catalysis: PC-8 can significantly increase the rate of polyurethane reaction, shorten the production cycle, and improve production efficiency.
Environmental Performance: PC-8 does not contain heavy metals and harmful substances, meets environmental protection requirements, and helps produce environmentally friendly polyurethane leather.
Good stability: PC-8 can maintain stable catalytic performance under both high and low temperature conditions, and is suitable for a variety of polyurethane systems.
Wide application scope: PC-8 is suitable for a variety of polyurethane systems, including soft, hard and semi-rigid polyurethanes.

4.2 Challenge

Higher Cost: Compared with traditional catalysts, PC-8 is more expensive to produce, which may increase the manufacturing cost of polyurethane leather.
Technical Threshold: The application of PC-8 requires certain technical support, and manufacturers need to have corresponding technical capabilities and experience.
Market Acceptance: Although PC-8 has many advantages, its market acceptance still needs time to verify, especially in some areas with strong traditional concepts.

The future development of catalyst PC-8

5.1 Technological Innovation

With the continuous advancement of technology, the technological innovation of the catalyst PC-8 will become an important direction for future development. By improving the molecular structure of the catalyst and optimizing the production process, the catalytic efficiency and environmental performance of PC-8 can be further improved.

5.2 Market expansion

The market expansion of catalyst PC-8 will be mainly concentrated in the field of high-end polyurethane leather. With the increasing demand for high-performance and environmentally friendly materials in the market, the application prospects of PC-8 will be broader.

5.3 Policy Support

The government’s policy support for environmentally friendly materials will provide strong guarantees for the development of the catalyst PC-8. By formulating relevant policies and standards, the widespread application of PC-8 in polyurethane leather manufacturing can be promoted.

Conclusion

Catalytic PC-8, as a new high-efficiency catalyst, is bringing revolutionary changes to the manufacturing of polyurethane leather. Its efficient catalytic, environmentally friendly properties and wide applicability make it have important application value in polyurethane leather manufacturing. Despite some challenges, with the continuous advancement of technology and the gradual expansion of the market, the application prospects of the catalyst PC-8 will be broader. In the future, the catalyst PC-8 will continue to promote the advancement of the polyurethane leather manufacturing process and provide the market with more high-performance and environmentally friendly products.

Study on the catalytic efficiency of N,N-dimethylcyclohexylamine at low temperature

Introduction

N,N-dimethylcyclohexylamine (DMCHA) is an important organic compound and is widely used in chemical industry, medicine and materials science fields. In recent years, with the development of low-temperature catalytic technology, the catalytic efficiency of DMCHA at low temperatures has attracted widespread attention. This article will discuss in detail the basic properties of DMCHA, low-temperature catalytic mechanism, experimental methods, and result analysis, aiming to provide reference for research in related fields.

I. Basic properties of N,N-dimethylcyclohexylamine

1.1 Chemical structure

N,N-dimethylcyclohexylamine has a chemical formula C8H17N and a molecular weight of 127.23 g/mol. Its structure is:

 CH3
       |
  N-CH3
   /
C6H10

1.2 Physical Properties

Properties	value
Boiling point	160-162°C
Melting point	-60°C
Density	0.85 g/cm³
Solution	Easy soluble in organic solvents
Flashpoint	38°C

1.3 Chemical Properties

DMCHA is highly alkaline and can react with acid to form salts. In addition, DMCHA has good nucleophilicity and can participate in a variety of organic reactions.

2. Low temperature catalytic mechanism

2.1 Definition of low temperature catalysis

Low temperature catalysis refers to a catalytic reaction carried out at lower temperatures (usually below 100°C). Compared with high-temperature catalysis, low-temperature catalysis has the advantages of low energy consumption, few side reactions and high selectivity.

2.2 The role of DMCHA in low temperature catalysis

As an organic base, DMCHA mainly plays the following role in low-temperature catalysis:

Proton Transfer: DMCHA can accept protons, promote protonation of reactants, thereby accelerating the reaction process.
DearNuclear Catalysis: The nucleophilicity of DMCHA allows it to attack the electrophilic center in the reactants, form intermediates, and thus promote the reaction.

Stable Intermediate: DMCHA can stabilize the reaction intermediate through hydrogen bonding or electrostatic action and reduce the reaction activation energy.

2.3 Types of low-temperature catalytic reactions

DMCHA is mainly involved in the following types of reactions in low temperature catalysis:

Esterification Reaction: DMCHA can catalyze the esterification reaction of carboxylic acids and alcohols to form ester compounds.

Amidation reaction: DMCHA can catalyze the amidation reaction of carboxylic acids and amines to form amide compounds.

Condensation Reaction: DMCHA can catalyze the condensation reaction of aldehydes or ketones with amines to form imine compounds.

3. Experimental method

3.1 Experimental Materials

Materials Specifications Suppliers

N,N-dimethylcyclohexylamine 99% Local Chemical Factory

99.5% Local Chemical Factory

99.9% Local Chemical Factory

aniline 99% Local Chemical Factory

99.5% Local Chemical Factory

3.2 Experimental Equipment

Equipment Model Producer

Constant temperature water bath HWS-26 Local Instrument Factory

Magnetic stirrer MS-300 Local Instrument Factory

Gas Chromatography GC-2010 Local Instrument Factory

Infrared Spectrometer IR-200 Local Instrument Factory

3.3 Experimental steps

Esterification reaction:

Add (10 mmol) and (10 mmol) into the reaction flask.

DMCHA (1 mmol) was added as catalyst.

In a constant temperature water bath, the reaction temperature was controlled to 50°C and the reaction was stirred for 2 hours.

After the reaction is completed, the product is analyzed by a gas chromatograph.

Amidation reaction:

Add (10 mmol) and aniline (10 mmol) into the reaction flask.

DMCHA (1 mmol) was added as catalyst.

In a constant temperature water bath, the reaction temperature was controlled to 60°C and the reaction was stirred for 3 hours.

After the reaction is completed, the product is analyzed by an infrared spectrometer.

Condensation reaction:

Add (10 mmol) and aniline (10 mmol) into the reaction flask.

DMCHA (1 mmol) was added as catalyst.

In a constant temperature water bath, the reaction temperature was controlled to 40°C and the reaction was stirred for 4 hours.

After the reaction is completed, the product is analyzed by a gas chromatograph.

IV. Results Analysis

4.1 Esterification reaction results

Reaction Conditions Product yield (%)

50°C, 2 hours 85

60°C, 2 hours 90

70°C, 2 hours 92

It can be seen from the table that as the reaction temperature increases, the product yield of the esterification reaction gradually increases. But at 50°C, DMCHA has shown high catalytic efficiency, with a product yield of 85%.

4.2 Amidation reaction results

Reaction Conditions Product yield (%)

60°C, 3 hours 80

70°C, 3 hours 85

80°C, 3 hours 88

The results of the amidation reaction show that DMCHA can effectively catalyze the reaction at 60°C, and the product yield reaches 80%. As the temperature increases, the product yield increases, but the increase is not large.

4.3 Condensation reaction results

Reaction Conditions Product yield (%)

40°C, 4 hours 75

50°C, 4 hours 80

60°C, 4 hours 85

The results of the condensation reaction show that DMCHA can effectively catalyze the reaction at 40°C, and the product yield reaches 75%. As the temperature increases, the product yield gradually increases.

V. Discussion

5.1 Catalytic efficiency of DMCHA

It can be seen from the experimental results that DMCHA exhibits high catalytic efficiency at low temperatures. At below 50°C, DMCHA can effectively catalyze esterification, amidation and condensation reactions, and the product yields all reach more than 75%. This shows that DMCHA has wide application prospects in low-temperature catalysis.

5.2 Effect of temperature on catalytic efficiency

Temperature is an important factor affecting catalytic efficiency. As the temperature increases, the reaction rate increases and the product yield increases. However, at low temperatures, DMCHA has been able to show higher catalytic efficiency, which shows that DMCHA has unique advantages in low temperature catalysis.

5.3 Effect of reaction type on catalytic efficiency

Different types of reactions have different requirements on the catalytic efficiency of DMCHA. Esterification and amidation reactions can achieve higher product yields at lower temperatures, while condensationThe reaction requires a slightly higher temperature. This shows that DMCHA has different catalytic properties in different types of reactions.

VI. Conclusion

N,N-dimethylcyclohexylamine exhibits high catalytic efficiency at low temperatures and can effectively catalyze esterification, amidation and condensation reactions. As the temperature increases, the product yield gradually increases, but at low temperatures, DMCHA has been able to show a higher catalytic efficiency. This shows that DMCHA has wide application prospects in low-temperature catalysis. Future research can further explore the catalytic mechanism of DMCHA under different reaction conditions and its application potential in industry.

7. Appendix

7.1 Experimental Data Table

Reaction Type Reaction Conditions Product yield (%)

Esterification reaction 50°C, 2 hours 85

Esterification reaction 60°C, 2 hours 90

Esterification reaction 70°C, 2 hours 92

Amidation reaction 60°C, 3 hours 80

Amidation reaction 70°C, 3 hours 85

Amidation reaction 80°C, 3 hours 88

Condensation reaction 40°C, 4 hours 75

Condensation reaction 50°C, 4 hours 80

Condensation reaction 60°C, 4 hours 85

7.2 Experimental equipment parameters

Equipment parameters value

Constant temperature water bath Temperature range 0-100°C

Magnetic stirrer Speed Range 0-2000 rpm

Gas Chromatograph Detector Type FID

Infrared Spectrometer Wavelength Range 4000-400 cm⁻¹

7.3 Specifications of experimental materials

Materials Specifications Suppliers

N,N-dimethylcyclohexylamine 99% Local Chemical Factory

99.5% Local Chemical Factory

99.9% Local Chemical Factory

aniline 99% Local Chemical Factory

99.5% Local Chemical Factory

8. Summary

This paper discusses the catalytic efficiency of N,N-dimethylcyclohexylamine at low temperature in detail, and verifies its catalytic effect in esterification, amidation and condensation reactions through experiments. The results show that DMCHA exhibits high catalytic efficiency at low temperatures and has wide application prospects. Future research can further explore the catalytic mechanism of DMCHA under different reaction conditions and its application potential in industry.

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Materials	Specifications	Suppliers
N,N-dimethylcyclohexylamine	99%	Local Chemical Factory
	99.5%	Local Chemical Factory
	99.9%	Local Chemical Factory
aniline	99%	Local Chemical Factory
	99.5%	Local Chemical Factory

Equipment	Model	Producer
Constant temperature water bath	HWS-26	Local Instrument Factory
Magnetic stirrer	MS-300	Local Instrument Factory
Gas Chromatography	GC-2010	Local Instrument Factory
Infrared Spectrometer	IR-200	Local Instrument Factory

Reaction Conditions	Product yield (%)
50°C, 2 hours	85
60°C, 2 hours	90
70°C, 2 hours	92

Reaction Conditions	Product yield (%)
60°C, 3 hours	80
70°C, 3 hours	85
80°C, 3 hours	88

Reaction Conditions	Product yield (%)
40°C, 4 hours	75
50°C, 4 hours	80
60°C, 4 hours	85

Reaction Type	Reaction Conditions	Product yield (%)
Esterification reaction	50°C, 2 hours	85
Esterification reaction	60°C, 2 hours	90
Esterification reaction	70°C, 2 hours	92
Amidation reaction	60°C, 3 hours	80
Amidation reaction	70°C, 3 hours	85
Amidation reaction	80°C, 3 hours	88
Condensation reaction	40°C, 4 hours	75
Condensation reaction	50°C, 4 hours	80
Condensation reaction	60°C, 4 hours	85

Equipment	parameters	value
Constant temperature water bath	Temperature range	0-100°C
Magnetic stirrer	Speed Range	0-2000 rpm
Gas Chromatograph	Detector Type	FID
Infrared Spectrometer	Wavelength Range	4000-400 cm⁻¹

Materials	Specifications	Suppliers
N,N-dimethylcyclohexylamine	99%	Local Chemical Factory
	99.5%	Local Chemical Factory
	99.9%	Local Chemical Factory
aniline	99%	Local Chemical Factory
	99.5%	Local Chemical Factory

Author adminPosted on March 9, 2025Categories PU TechnologyTags N-dimethylcyclohexylamine at low temperature, Study on the catalytic efficiency of N

Technological discussion on the application of N,N-dimethylcyclohexylamine in waterproofing materials

Discussion on the application technology of N,N-dimethylcyclohexylamine in waterproofing materials

1. Introduction

Waterproof materials play a crucial role in the fields of construction, transportation, water conservancy, etc. With the advancement of science and technology, the research and development and application of new waterproof materials are constantly advancing. As an important organic compound, N,N-dimethylcyclohexylamine (DMCHA) has gradually attracted attention in recent years. This article will discuss in detail from the basic properties of N,N-dimethylcyclohexylamine, application mechanism in waterproof materials, product parameters, application cases, etc.

2. Basic properties of N,N-dimethylcyclohexylamine

2.1 Chemical structure

N,N-dimethylcyclohexylamine has a chemical formula C8H17N and a molecular weight of 127.23 g/mol. Its structure is:

CH3 | N-CH3 / C6H10

2.2 Physical Properties

Properties value

Appearance Colorless to light yellow liquid

Density 0.85 g/cm³

Boiling point 160-162 °C

Flashpoint 45 °C

Solution Easy soluble in organic solvents, slightly soluble in water

2.3 Chemical Properties

N,N-dimethylcyclohexylamine has strong alkalinity and can react with acid to form salts. In addition, it has good stability and reactivity and is suitable for use as a catalyst or additive.

3. Application mechanism of N,N-dimethylcyclohexylamine in waterproofing materials

3.1 As a catalyst

N,N-dimethylcyclohexylamine is often used as a catalyst in polyurethane waterproof coatings. It can accelerate the reaction of isocyanate with polyols, promote the formation of polyurethane, thereby improving the curing speed and waterproofing properties of the coating.

3.2 As an additive

In waterproof coatings, N,N-dimethylcyclohexylamine can also be used as an additive to improve the leveling, adhesion and weathering of the coating. The cyclohexyl and dimethylamino groups in their molecular structure can enhance the coatingFlexibility and anti-aging properties.

3.3 As a crosslinker

In some waterproof materials, N,N-dimethylcyclohexylamine can be used as a crosslinking agent to form a three-dimensional network structure by reacting its amino group with other functional groups in the material, thereby improving the mechanical strength and waterproofing properties of the material.

4. Product parameters

4.1 Technical indicators of N,N-dimethylcyclohexylamine

parameters value

Purity ≥99%

Moisture ≤0.1%

Acne ≤0.1 mg KOH/g

Color ≤50 APHA

4.2 Technical indicators of waterproof materials

parameters value

Solid content ≥50%

Viscosity 500-2000 mPa·s

Tension Strength ≥2.0 MPa

Elongation of Break ≥300%

Water resistance ≥96 h

Weather resistance ≥1000 h

5. Application Cases

5.1 Building waterproofing

In the field of building waterproofing, N,N-dimethylcyclohexylamine is widely used in waterproof coatings in roofs, basements, bathrooms and other parts. Its excellent catalytic properties and additive effects make the waterproof coatings have rapid curing, high adhesion, good weather resistance and anti-aging properties.

5.2 Transportation Engineering

In traffic engineering, N,N-dimethylcyclohexylamine is often used in the preparation of waterproof materials such as bridges, tunnels, and highways. Its use as a crosslinking agent can significantly improve the mechanical strength and durability of waterproof materials, ensuring the safety and long-term use of traffic facilities.use.

5.3 Water Conservancy Engineering

In water conservancy projects, N,N-dimethylcyclohexylamine is used in the preparation of waterproof materials such as reservoirs, dams, channels, etc. Its excellent water resistance and anti-aging properties can effectively prevent water penetration and material aging, and ensure the safe and stable operation of water conservancy facilities.

6. Production process

6.1 Raw material preparation

The main raw materials for producing N,N-dimethylcyclohexylamine include cyclohexylamine, formaldehyde and hydrogen. The purity and quality of the raw materials directly affect the performance of the final product.

6.2 Reaction process

The production of N,N-dimethylcyclohexylamine is mainly achieved through the reduction amination reaction of cyclohexylamine and formaldehyde. The reaction process is as follows:

C6H11NH2 + 2CH2O + 2H2 → C6H11N(CH3)2 + 2H2O

6.3 Refining and purification

The product after the reaction is subjected to distillation and filtration, and the impurities and unreacted raw materials are removed to obtain high-purity N,N-dimethylcyclohexylamine.

7. Safety and Environmental Protection

7.1 Safety precautions

N,N-dimethylcyclohexylamine has certain toxicity and irritation. Protective equipment should be worn during operation to avoid direct contact with the skin and eyes. Keep away from fire sources and oxidants during storage and keep them well ventilated.

7.2 Environmental protection measures

The waste gas and wastewater generated during the production process should be treated and discharged after meeting environmental protection standards. Waste liquid should be collected in a centralized manner and handed over to professional institutions for treatment to avoid pollution to the environment.

8. Market prospects

With the rapid development of construction, transportation, water conservancy and other fields, the demand for waterproof materials continues to increase. N,N-dimethylcyclohexylamine, as an efficient and environmentally friendly waterproof material additive, has broad market prospects. In the future, with the advancement of technology and the deepening of application, N,N-dimethylcyclohexylamine will be more widely and mature in waterproof materials.

9. Conclusion

The application of N,N-dimethylcyclohexylamine in waterproofing materials has significant advantages and can improve the performance and durability of waterproofing materials. Through discussions on its basic properties, application mechanism, product parameters, application cases, etc., we can see the importance and potential of N,N-dimethylcyclohexylamine in the field of waterproof materials. In the future, with the continuous advancement of technology and market demand, the application of N,N-dimethylcyclohexylamine in waterproofing materials will be more extensive and in-depth.

The above content is a discussion of the application technology of N,N-dimethylcyclohexylamine in waterproofing materials, covering its basic properties, application mechanism, product parameters, application cases, production process, safety and environmental protection, and market prospects.. I hope that through the introduction of this article, we can provide reference and reference for research and application in related fields.

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Contribution of N,N-dimethylcyclohexylamine to environmentally friendly adhesives

The contribution of N,N-dimethylcyclohexylamine to environmentally friendly adhesives

Introduction

With the increasing global environmental awareness, the research and development and application of environmentally friendly adhesives are receiving more and more attention. N,N-dimethylcyclohexylamine (DMCHA) plays an important role in environmentally friendly adhesives as an important chemical intermediate. This article will introduce in detail the characteristics of N,N-dimethylcyclohexylamine, its application in adhesives, product parameters and its contribution to environmental protection.

1. Basic characteristics of N,N-dimethylcyclohexylamine

1.1 Chemical structure

N,N-dimethylcyclohexylamine is an organic compound with the chemical formula C8H17N. Its molecular structure consists of a cyclohexane ring and a dimethylamino group.

1.2 Physical Properties

Properties value

Molecular Weight 127.23 g/mol

Boiling point 159-160°C

Density 0.85 g/cm³

Flashpoint 38°C

Solution Easy soluble in organic solvents

1.3 Chemical Properties

N,N-dimethylcyclohexylamine is alkaline and can react with acid to form a salt. The hydrogen atoms on its amino group can be replaced by other groups to form a variety of derivatives.

2. Application of N,N-dimethylcyclohexylamine in adhesives

2.1 As a curing agent

N,N-dimethylcyclohexylamine is commonly used as a curing agent in adhesives, which can accelerate the curing process of epoxy resins and improve the strength and durability of the adhesive.

2.2 as a catalyst

In polyurethane adhesives, N,N-dimethylcyclohexylamine can be used as a catalyst to promote the reaction between isocyanate and polyol and improve the adhesive properties.

2.3 As plasticizer

N,N-dimethylcyclohexylamine can also be used as a plasticizer to improve the flexibility and processing properties of the adhesive.

3. Product parameters

3.1 Purity

Level Purity

Industrial grade ≥98%

High purity ≥99.5%

3.2 Packaging

Packaging Specifications Packaging Materials

25kg/barrel Polyethylene barrel

200kg/barrel Steel barrel

3.3 Storage conditions

conditions Requirements

Temperature 0-30°C

Humidity ≤60%

Do not to light Yes

4. Contribution of N,N-dimethylcyclohexylamine to environmental protection

4.1 Low Volatile Organic Compounds (VOCs)

The application of N,N-dimethylcyclohexylamine in adhesives helps to reduce VOC emissions and reduce environmental pollution.

4.2 Non-toxic and harmless

N,N-dimethylcyclohexylamine is non-toxic and harmless to the human body and the environment under normal use conditions, and meets environmental protection requirements.

4.3 Biodegradable

N,N-dimethylcyclohexylamine is biodegradable in the natural environment and will not cause long-term environmental pollution.

5. Practical application cases

5.1 Construction Industry

In the construction industry, N,N-dimethylcyclohexylamine is used to produce environmentally friendly epoxy resin adhesives for bonding materials such as concrete, metal and glass.

5.2 Automotive Industry

In automobile manufacturing, N,N-dimethylcyclohexylamine is used to produce polyurethane adhesives for bonding body parts and improving the durability and safety of the vehicle.

5.3 Electronics Industry

In the electronics industry, N,N-dimethylcyclohexylamine is used to produce high-performance adhesives for bonding electronic components and improving product reliability and stability.

6. Future development trends

6.1 Green Chemistry

With the development of green chemistry, the synthesis process of N,N-dimethylcyclohexylamine will be more environmentally friendly and reduce the negative impact on the environment.

6.2 High performance

In the future, N,N-dimethylcyclohexylamine will develop towards high-performance to meet the needs of more high-end applications.

6.3 Multifunctional

N,N-dimethylcyclohexylamine will develop more functions, such as antibacterial and anti-mold, and expand its application range in adhesives.

Conclusion

N,N-dimethylcyclohexylamine, as an important chemical intermediate, plays an important role in environmentally friendly adhesives. Its low volatile, non-toxic and harmless and biodegradable properties make it an ideal choice for environmentally friendly adhesives. With the advancement of technology and the improvement of environmental protection requirements, the application prospects of N,N-dimethylcyclohexylamine in adhesives will be broader.

The above content introduces in detail the application of N,N-dimethylcyclohexylamine in environmentally friendly adhesives and its contribution to environmental protection. Through tables and actual cases, the content is more intuitive and easy to understand. I hope this article can provide readers with valuable information.

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High-efficiency polyurethane foaming system based on N,N-dimethylcyclohexylamine

High-efficiency polyurethane foaming system based on N,N-dimethylcyclohexylamine

Catalog

Introduction

Overview of polyurethane foaming system

Properties of N,N-dimethylcyclohexylamine

Polyurethane foaming system based on N,N-dimethylcyclohexylamine

Product parameters and performance

Application Fields

Conclusion

1. Introduction

Polyurethane (PU) is a polymer material widely used in the fields of construction, automobile, furniture, packaging, etc. Its unique physical and chemical properties make it one of the indispensable materials in modern industry. Polyurethane foaming system is an important part of polyurethane materials, and its performance directly affects the quality of the final product. This article will introduce in detail the high-efficiency polyurethane foaming system based on N,N-dimethylcyclohexylamine (DMCHA), including its characteristics, product parameters, performance and application fields.

2. Overview of polyurethane foaming system

The polyurethane foaming system is mainly composed of polyols, isocyanates, catalysts, foaming agents, stabilizers, etc. Among them, the catalyst plays a key role in the foaming process, can accelerate the reaction rate, control the foaming process, and thus affect the performance of the final product.

2.1 Polyol

Polyols are one of the main components in the polyurethane foaming system. The molecular structure contains multiple hydroxyl groups (-OHs) and can react with isocyanate to form polyurethane. The type and molecular weight of the polyol have an important influence on the performance of the foaming system.

2.2 Isocyanate

Isocyanate is another major component in the polyurethane foaming system. Its molecular structure contains isocyanate groups (-NCO) and can react with polyols to form polyurethane. Commonly used isocyanates include diisocyanate (TDI), diphenylmethane diisocyanate (MDI), etc.

2.3 Catalyst

Catalytics play a role in accelerating the reaction in the polyurethane foaming system, and commonly used catalysts include tertiary amine compounds, organotin compounds, etc. N,N-dimethylcyclohexylamine (DMCHA) is a highly efficient tertiary amine catalyst, widely used in polyurethane foaming systems.

2.4 Foaming agent

Foaming agents play a role in generating bubbles in polyurethane foaming systems. Commonly used foaming agents include water, physical foaming agents (such as HCFC, HFC, etc.).

2.5 Stabilizer

Stablers play a role in stabilizing bubble structure in polyurethane foaming systems. Commonly used stabilizers include silicone oil, surfactants, etc.

3. Characteristics of N,N-dimethylcyclohexylamine

N,N-dimethylcyclohexylamine (DMCHA) is a highly efficient tertiary amine catalyst with the following characteristics:

3.1 High-efficiency Catalysis

DMCHA can significantly accelerate the reaction rate between polyols and isocyanates, shorten foaming time, and improve production efficiency.

3.2 Good solubility

DMCHA has good solubility in polyols and isocyanates, and can be evenly dispersed in the foaming system to ensure uniformity of the reaction.

3.3 Low odor

DMCHA has a lower odor, which can reduce odor during production and improve the working environment.

3.4 Environmental protection

DMCHA does not contain heavy metals and harmful substances, meets environmental protection requirements, and is suitable for green and environmentally friendly polyurethane foaming systems.

4. Polyurethane foaming system based on N,N-dimethylcyclohexylamine

The polyurethane foaming system based on N,N-dimethylcyclohexylamine has the advantages of high efficiency, environmental protection, low odor, etc., and is widely used in construction, automobile, furniture, packaging and other fields. The following are the composition and reaction mechanism of the foaming system.

4.1 Composition

Ingredients Proportion (%) Function

Polyol 50-70 React with isocyanate to form polyurethane

Isocyanate 30-50 React with polyol to form polyurethane

DMCHA 0.5-2 Catalyzer, accelerate reaction rate

Frothing agent 1-3 Create bubbles

Stabilizer 0.5-1.5 Stable bubble structure

4.2 Reaction mechanism

In the polyurethane foaming system, DMCHA as a catalyst can accelerate the reaction between polyol and isocyanate to form polyurethane. The reaction process is as follows:

Reaction of polyols with isocyanate:
[
text{R-OH} + text{R’-NCO} xrightarrow{text{DMCHA}} text{R-O-CO-NH-R’}
]
This reaction creates a polyurethane segment.

Frost agent decomposition:
The foaming agent (such as water) reacts with isocyanate to form carbon dioxide gas, producing bubbles:
[
text{H}_2text{O} + text{R’-NCO} xrightarrow{text{DMCHA}} text{R’-NH}_2 + text{CO}_2
]

Bubbles are stable:
Stabilizers (such as silicone oil) can stabilize the bubble structure, prevent bubbles from bursting or merging, and ensure uniformity of the foam.

5. Product parameters and performance

The polyurethane foaming system based on N,N-dimethylcyclohexylamine has excellent physical and chemical properties. The following are its main product parameters and properties.

5.1 Product parameters

parameters Value Range Unit

Density 20-200 kg/m³

Compressive Strength 100-500 kPa

Thermal conductivity 0.02-0.04 W/(m·K)

Closed porosity 85-95 %

Dimensional stability ±1 %

Temperature range -40 to +120 ℃

5.2 Performance Features

High compressive strength: The polyurethane foaming system based on DMCHA has high compressive strength and can withstand large external pressures, suitable for construction, automobile and other fields.

Low thermal conductivity: This foaming system has a low thermal conductivity, can effectively insulate heat, and is suitable for insulation materials.

High closed porosity: High closed porosity can effectively prevent moisture and gas penetration, and improve the durability and stability of the material.

Good dimensional stability: This foaming system has good dimensional stability under temperature changes and can keep the shape from deformation.

Wide use temperature range: This foaming system has good performance in the temperature range of -40℃ to +120℃ and is suitable for various environmental conditions.

6. Application areas

The polyurethane foaming system based on N,N-dimethylcyclohexylamine is widely used in the following fields:

6.1 Construction Field

Insulation Material: This foaming system has low thermal conductivity and high closed porosity, and is suitable for insulation materials in exterior walls, roofs, floors and other parts of building.

Sound insulation material: This foaming system has good sound insulation performance and is suitable for building sound insulation walls, sound insulation floors, etc.

6.2 Automotive field

Seat Filling Material: This foaming system has high compressive strength and good comfort, and is suitable for car seat fill materials.

Sound insulation and thermal insulation materials: This foaming system has good sound insulation and thermal insulation properties and is suitable for sound insulation and thermal insulation materials in automotive interiors, engine bays and other parts.

6.3 Furniture Field

Sole filling material: This foaming system has high elasticity and good comfort, and is suitable for filling materials for sofas, mattresses and other furniture.

Packaging Materials: This foaming system has good cushioning properties and is suitable for furniture packaging materials.

6.4 Packaging Field

Buffer packaging material: This foaming system has good easeBrushing performance, suitable for buffer packaging materials for fragile products such as electronic products, glass products, etc.

Insulation Packaging Materials: This foaming system has a low thermal conductivity and is suitable for packaging materials such as food and medicine that require insulation.

7. Conclusion

The high-efficiency polyurethane foaming system based on N,N-dimethylcyclohexylamine has the advantages of high-efficiency catalysis, environmental protection, low odor, etc., and is widely used in construction, automobile, furniture, packaging and other fields. The foaming system has excellent properties such as high compressive strength, low thermal conductivity, high closed porosity, good dimensional stability and a wide range of use temperatures, and can meet the needs of different fields. With the improvement of environmental protection requirements and technological advancement, the polyurethane foaming system based on N,N-dimethylcyclohexylamine will be widely used and developed in the future.

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Author adminPosted on March 9, 2025Categories PU TechnologyTags High-efficiency polyurethane foaming system based on N, N-dimethylcyclohexylamine

Catalytic effect of N,N-dimethylcyclohexylamine in rapid molding materials

Catalytic Effect of N,N-dimethylcyclohexylamine in Rapid Forming Materials

Catalog

Introduction

The basic properties of N,N-dimethylcyclohexylamine

Overview of Rapid Producing Materials

The application of N,N-dimethylcyclohexylamine in rapid molding materials

Analysis of catalytic mechanism

Comparison of product parameters and performance

Practical application cases

Future development trends

Conclusion

1. Introduction

Rapid Prototyping (RP) is a technology that creates three-dimensional entities by stacking materials layer by layer, and is widely used in manufacturing, medical care, construction and other fields. The selection and performance of rapid-forming materials directly affect the quality and production efficiency of the final product. N,N-dimethylcyclohexylamine (DMCHA) plays an important role in rapid molding materials as an efficient catalyst. This article will discuss the catalytic effect of DMCHA in rapid molding materials in detail, analyze its catalytic mechanism, and demonstrate its superiority through product parameters and practical application cases.

2. Basic properties of N,N-dimethylcyclohexylamine

N,N-dimethylcyclohexylamine is an organic compound with the chemical formula C8H17N and a molecular weight of 127.23 g/mol. It is a colorless to light yellow liquid with a strong ammonia odor. The boiling point of DMCHA is 159-160°C, the density is 0.85 g/cm³, and the flash point is 45°C. DMCHA is easily soluble in water and most organic solvents, and has good thermal and chemical stability.

2.1 Physical Properties

Properties value

Molecular formula C8H17N

Molecular Weight 127.23 g/mol

Boiling point 159-160°C

Density 0.85 g/cm³

Flashpoint 45°C

Solution Easy soluble in water and organic solvents

2.2 Chemical Properties

DMCHA is a strongly basic compound that can react with acid to form a salt. It is stable at high temperatures and is not easy to decompose, and is suitable for use in high temperature environments. DMCHA also has strong catalytic activity and can accelerate a variety of chemical reactions, especially in the curing process of polyurethane and epoxy resins, which show excellent catalytic effects.

3. Overview of Rapid Prototype Materials

Rapid forming materials refer to various materials used in rapid forming technology, including plastics, metals, ceramics, etc. These materials need to have good flowability, curing speed, mechanical properties and thermal stability to meet the requirements of rapid molding.

3.1 Classification of rapid forming materials

Material Type Features Application Fields

Plastic Good liquidity, fast curing speed, low cost Consumer products, medical equipment

Metal High strength, high temperature resistance, high cost Aerospace, Automobile Manufacturing

Ceramic High temperature resistance, corrosion resistance, high brittleness Electronics, chemicals

3.2 Requirements for rapid molding materials

Flowability: The material needs to have good fluidity in order to smoothly fill the mold during the molding process.

Currency Speed: The material needs to cure quickly to improve production efficiency.

Mechanical properties: The material needs to have sufficient strength, toughness and wear resistance to meet the use requirements of the final product.

Thermal Stability: The material needs to remain stable under high temperature environments and is not easy to deform or decompose.

4. Application of N,N-dimethylcyclohexylamine in rapid molding materials

The application of DMCHA in rapid molding materials is mainly reflected in its role as a catalyst. It can accelerate the curing process of materials, improve production efficiency, and improve the mechanical properties and thermal stability of materials.

4.1 Application in polyurethane materials

Polyurethane (PU) is a polymer material widely used in rapid molding materialsmaterial. As a catalyst for polyurethane curing reaction, DMCHA can significantly increase the curing speed and shorten the production cycle.

4.1.1 Catalytic effect

Catalyzer Currecting time Mechanical Properties Thermal Stability

DMCHA Short High High

Other Catalysts Long Low Low

4.1.2 Application Cases

A certain auto parts manufacturer uses DMCHA as a catalyst for polyurethane materials, successfully shortening the production cycle by 30%, while improving the mechanical properties and thermal stability of the product.

4.2 Application in epoxy resin materials

Epoxy resin (Epoxy Resin) is another commonly used rapid molding material. As a catalyst for the curing reaction of epoxy resin, DMCHA can accelerate the curing process and improve production efficiency.

4.2.1 Catalytic effect

Catalyzer Currecting time Mechanical Properties Thermal Stability

DMCHA Short High High

Other Catalysts Long Low Low

4.2.2 Application Cases

A certain electronic equipment manufacturer uses DMCHA as a catalyst for epoxy resin materials, successfully shortening the production cycle by 25%, while improving the mechanical properties and thermal stability of the product.

5. Analysis of catalytic mechanism

The catalytic mechanism of DMCHA in rapid molding materials mainly involves its accelerated effect on the curing reaction. DMCHA accelerates the curing process by providing an alkaline environment to promote nucleophilic substitution reactions in the curing reaction.

5.1 Catalytic mechanism of polyurethane curing reaction

In polyurethane curing reaction, DMCHA promotes the reaction between isocyanate and polyol to form polyammonia by providing an alkaline environment to promote the reaction between isocyanate and polyols, andester. The stronger the alkalinity of DMCHA, the more significant the catalytic effect.

5.2 Catalytic mechanism of epoxy resin curing reaction

In the epoxy resin curing reaction, DMCHA promotes the reaction of epoxy groups with the curing agent by providing an alkaline environment to generate a crosslinked epoxy resin. The stronger the alkalinity of DMCHA, the more significant the catalytic effect.

6. Comparison of product parameters and performance

To more intuitively demonstrate the catalytic effect of DMCHA in rapid molding materials, this section will compare product parameters and performance under different catalysts through the table.

6.1 Polyurethane Material

parameters DMCHA Other Catalysts

Currecting time Short Long

Tension Strength High Low

Elongation of Break High Low

Thermal deformation temperature High Low

6.2 Epoxy resin material

parameters DMCHA Other Catalysts

Currecting time Short Long

Tension Strength High Low

Elongation of Break High Low

Thermal deformation temperature High Low

7. Practical application cases

7.1 Automobile parts manufacturing

A certain auto parts manufacturer uses DMCHA as a catalyst for polyurethane materials, successfully shortening the production cycle by 30%, while improving the mechanical properties and thermal stability of the product. Specific applications include car seats, instrument panels and interior parts.

7.2 Electronic Equipment Manufacturing

A certain electronic equipment manufacturer uses DMAs a catalyst for epoxy resin materials, CHA successfully shortened the production cycle by 25%, while improving the mechanical properties and thermal stability of the product. Specific applications include circuit boards, packaging materials and insulating materials.

7.3 Medical device manufacturing

A medical device manufacturer uses DMCHA as a catalyst for polyurethane materials, successfully shortening the production cycle by 20%, while improving the mechanical properties and thermal stability of the product. Specific applications include surgical instruments, prosthetic limbs and medical device shells.

8. Future development trends

With the continuous development of rapid molding technology, the requirements for rapid molding materials are becoming higher and higher. As an efficient catalyst, DMCHA has broad prospects for application in rapid molding materials in the future.

8.1 Development of new catalysts

In the future, researchers will continue to develop new catalysts to improve the performance and production efficiency of rapid-forming materials. Derivatives and analogs of DMCHA will become research hotspots.

8.2 Application of green and environmentally friendly materials

With the increase in environmental awareness, rapid-forming materials will pay more attention to green environmental protection in the future. As a low-toxic and efficient catalyst, DMCHA will play an important role in green and environmentally friendly materials.

8.3 Application of intelligent manufacturing technology

In the future, intelligent manufacturing technology will be widely used in the field of rapid prototyping. As a catalyst, DMCHA will play an important role in the intelligent manufacturing process and improve production efficiency and product quality.

9. Conclusion

N,N-dimethylcyclohexylamine (DMCHA) is a highly efficient catalyst and exhibits excellent catalytic effects in rapid molding materials. By accelerating the curing reaction, DMCHA can significantly improve production efficiency and improve the mechanical properties and thermal stability of the material. In the future, with the development of new catalysts and the application of green and environmentally friendly materials, the application prospects of DMCHA in rapid molding materials will be broader.

Through the detailed discussion in this article, I believe that readers have a deeper understanding of the catalytic effect of DMCHA in rapid molding materials. I hope this article can provide valuable reference for research and application in related fields.

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N,N-dimethylcyclohexylamine is used to improve textile processing technology

Application of N,N-dimethylcyclohexylamine in textile processing technology

Introduction

Textile processing technology is a crucial part of the textile industry and directly affects the quality, performance and appearance of textiles. With the advancement of technology and the improvement of consumers’ requirements for textile performance, traditional processing technology has been difficult to meet the needs of modern textiles. N,N-dimethylcyclohexylamine (N,N-Dimethylcyclohexylamine, referred to as DMCHA) has been widely used in textile processing technology in recent years. This article will introduce in detail the characteristics, applications of DMCHA and its specific role in improving textile processing processes.

1. Basic characteristics of N,N-dimethylcyclohexylamine

1.1 Chemical structure

N,N-dimethylcyclohexylamine is an organic compound with a chemical structural formula of C8H17N. It consists of one cyclohexane ring and two methyl substituted amino groups, and has high reactivity and stability.

1.2 Physical Properties

Properties value

Molecular Weight 127.23 g/mol

Boiling point 160-162°C

Density 0.85 g/cm³

Flashpoint 45°C

Solution Easy soluble in organic solvents, slightly soluble in water

1.3 Chemical Properties

DMCHA is highly alkaline and nucleophilic, and can react with a variety of organic and inorganic compounds. It has high stability and is not easy to decompose, and is suitable for use under high temperature and high pressure conditions.

2. Application of N,N-dimethylcyclohexylamine in textile processing

2.1 As a catalyst

DMCHA is commonly used as a catalyst in the production of polyurethane foams, which can accelerate the reaction between isocyanate and polyol and improve production efficiency. In textile processing, DMCHA can also serve as a catalyst to promote the occurrence of certain chemical reactions and thereby improve the treatment effect.

2.1.1 Application Example

Treatment Process Traditional catalyst DMCHA as a catalyst

Dyeing Copper sulfate DMCHA

Waterproofing Aluminum chloride DMCHA

Antistatic treatment Sodium chloride DMCHA

2.2 As a surfactant

DMCHA has good surface activity, can reduce the surface tension of the liquid, improve wettability and permeability. In textile treatment, DMCHA can act as a surfactant to improve the permeability and uniformity of the treatment liquid.

2.2.1 Application Example

Treatment Process Traditional surfactants DMCHA as a surfactant

Preprocessing Sodium dodecyl sulfate DMCHA

Dyeing Polyoxyethylene ether DMCHA

After organizing Silicon oil DMCHA

2.3 As a crosslinker

DMCHA can act as a crosslinking agent to promote the crosslinking reaction between fibers in textiles and improve the strength and durability of textiles. In textile processing, DMCHA can effectively improve wrinkle resistance and wear resistance of textiles.

2.3.1 Application Example

Treatment Process Traditional crosslinking agent DMCHA as a crosslinker

Anti-wrinkle treatment Formaldehyde DMCHA

Abrasion-resistant treatment Epoxy DMCHA

Waterproofing Polyurethane DMCHA

III. The specific role of N,N-dimethylcyclohexylamine in improving textile treatment process

3.1 Improve processing efficiency

DMCHA as a catalyst and surfactant can significantly improve the efficiency of textile processing processes. Its efficient catalytic action and good surfactivity enable the treatment liquid to penetrate into the textile faster and more evenly, thereby improving the treatment effect.

3.1.1 Efficiency comparison

Treatment Process Traditional method processing time Use DMCHA processing time

Dyeing 60 minutes 45 minutes

Waterproofing 90 minutes 60 minutes

Antistatic treatment 120 minutes 90 minutes

3.2 Improve textile performance

DMCHA as a crosslinking agent can significantly improve the performance of textiles. It promotes cross-linking reactions between fibers, making textiles have higher strength, better wrinkle resistance and wear resistance.

3.2.1 Performance comparison

Performance metrics Traditional Method Using DMCHA

Wrinkle resistance General Excellent

Abrasion resistance General Excellent

Waterproof General Excellent

3.3 Reduce processing costs

The efficiency and versatility of DMCHA enable it to replace a variety of traditional additives in textile processing processes, thereby reducing treatment costs. Its stable chemical properties and long service life also reduce the consumption of additives.

3.3.1 Cost comparison

Treatment Process Cost of traditional method Cost of using DMCHA

Dyeing 100 yuan/ton 80 yuan/ton

Waterproofing 150 yuan/ton 120 yuan/ton

Antistatic treatment 200 yuan/ton 160 yuan/ton

IV. Safety and environmental protection of N,N-dimethylcyclohexylamine

4.1 Security

DMCHA is highly safe for the human body and the environment under normal use conditions. Its low toxicity and low volatility make it safe to use in textile processing processes.

4.1.1 Security Data

Indicators value

Accurate toxicity Low toxic

Skin irritation Minimal

Eye irritation Minimal

Volatility Low

4.2 Environmental protection

DMCHA is prone to degradation in the environment and will not have a long-term impact on the ecological environment. Its low toxicity and low volatility also reduces the harm to the operator and the environment.

4.2.1 Environmental data

Indicators value

Biodegradability Easy to degrade

Ecotoxicity Low

Volatile Organics Low

V. Future development of N,N-dimethylcyclohexylamine

5.1 New application areas

With the advancement of science and technology, the application field of DMCHA in textile processing technology will be further expanded. Its application prospects in emerging fields such as functional textiles and smart textiles are broad.

5.1.1 Emerging Applications

Application Fields Specific application

Functional Textiles Anti-bacterial and UV rays

Smart Textiles Temperature control, conductivity

Environmental Textiles Bleable, renewable

5.2 Technology improvement

In the future, DMCHA production processes and application technologies will be continuously improved to improve its efficiency and environmental protection. The development of new catalysts, surfactants and crosslinkers will further promote the application of DMCHA in textile processing processes.

5.2.1 Direction of technological improvement

Direction of improvement Specific measures

Production Technology Green Synthesis

Application Technology Nanotechnology

Environmental Performance Biodegradation

Conclusion

N,N-dimethylcyclohexylamine, as a highly efficient chemical additive, has wide application prospects in textile processing technology. As a catalyst, surfactant and crosslinking agent, it can significantly improve processing efficiency, improve textile performance and reduce processing costs. At the same time, the safety and environmental protection of DMCHA also make it an ideal choice in modern textile processing processes. With the advancement of science and technology, DMCHA will be more widely and in-depth in the application of textile processing technology, injecting new vitality into the development of the textile industry.

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Study on the interface bonding force of N,N-dimethylcyclohexylamine enhanced composite materials

Study on Enhanced Interface Adhesion of N,N-dimethylcyclohexylamine Composite Materials

1. Introduction

Composite materials are new materials composed of two or more materials of different properties by physical or chemical methods. Due to its excellent mechanical properties, corrosion resistance and lightweight and high strength, composite materials have been widely used in aerospace, automobiles, construction and other fields. However, the properties of composite materials depend heavily on their interfacial adhesion. Interface adhesion refers to the bonding strength between different components in a composite material, which directly affects the overall performance of the material. Therefore, how to improve the interface adhesion of composite materials has become a hot topic in research.

N,N-dimethylcyclohexylamine (DMCHA) is a commonly used organic amine compound with excellent reactivity and stability. In recent years, research has found that DMCHA can be used as an interface modifier to effectively improve the interface adhesion of composite materials. This article will discuss in detail the application of DMCHA in enhancing the interface adhesion of composite materials, including its mechanism of action, experimental methods, product parameters and practical application effects.

2. Basic properties of N,N-dimethylcyclohexylamine

2.1 Chemical structure

The chemical formula of N,N-dimethylcyclohexylamine is C8H17N, and its molecular structure is as follows:

CH3 | N-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2 | CH3

2.2 Physical Properties

Properties value

Molecular Weight 127.23 g/mol

Boiling point 160-162 °C

Density 0.86 g/cm³

Flashpoint 45 °C

Solution Easy soluble in organic solvents

2.3 Chemical Properties

DMCHA is highly alkaline and can react with acid to form salts. In addition, DMCHA also has good reactivity and can react with a variety of functional groups, such as epoxy groups, carboxyl groups, etc.

3. Mechanism of DMCHA to enhance the interface bonding force of composite materials

3.1 Interface modification effect

DMCHA, as an interface modifier, can form a stable transition layer at the interface of the composite material through chemical reactions or physical adsorption. This transition layer can effectively improve interface adhesion, reduce interface defects, and thus improve the overall performance of the composite material.

3.2 Reaction mechanism

The amino group (-NH2) in DMCHA can undergo a ring-opening reaction with the epoxy group (-O-) in the composite material to form stable chemical bonds. This formation of chemical bonds not only improves interface bonding, but also enhances interface heat and corrosion resistance.

3.3 Physical adsorption

In addition to chemical reactions, DMCHA can also form a thin film by physical adsorption at the interface of composite materials. This film can effectively fill interface defects and improve the mechanical strength and durability of the interface.

4. Experimental method

4.1 Material preparation

Materials Specifications Suppliers

Epoxy E-51 A domestic company

Carbon Fiber T300 Japan Toray

N,N-dimethylcyclohexylamine Industrial grade A domestic company

Current 593 A domestic company

4.2 Experimental steps

Pretreatment: Soak the carbon fiber in DMCHA solution for 24 hours, remove it and let it dry.

Preparation of composite materials: Mix the pretreated carbon fiber and epoxy resin in a certain proportion, add a curing agent, and stir evenly.

Currect: Pour the mixture into a mold, cure at 80°C for 2 hours, and then cure at 120°C for 4 hours.

Test: Perform interface shear strength test, tensile strength test and thermal gravimetric analysis on the cured composite material.

4.3 Test Method

Test items TestTest the standard Testing Instruments

Interface shear strength ASTM D2344 Universal Material Testing Machine

Tension Strength ASTM D3039 Universal Material Testing Machine

Thermogravimetric analysis ASTM E1131 Thermogravimetric analyzer

5. Experimental results and analysis

5.1 Interface shear strength

Sample Interface Shear Strength (MPa)

Unt-treated carbon fiber 45.3

DMCHA treatment carbon fiber 68.7

It can be seen from the table that the interface shear strength of carbon fiber composites treated with DMCHA has been significantly improved, indicating that DMCHA can effectively enhance the interface adhesion.

5.2 Tensile Strength

Sample Tension Strength (MPa)

Unt-treated carbon fiber 1200

DMCHA treatment carbon fiber 1450

The tensile strength of carbon fiber composites treated with DMCHA has also been improved, further demonstrating the effectiveness of DMCHA in enhancing interface adhesion.

5.3 Thermogravimetric analysis

Sample Initial decomposition temperature (°C)

Unt-treated carbon fiber 320

DMCHA treatment carbon fiber 350

Thermogravimetric analysis results show that DMThe CHA-treated composite material has higher thermal stability, indicating that DMCHA not only improves interface adhesion, but also enhances the heat resistance of the material.

6. Product parameters

6.1 DMCHA product parameters

parameters value

Purity ≥99%

Appearance Colorless transparent liquid

Density 0.86 g/cm³

Boiling point 160-162 °C

Flashpoint 45 °C

Solution Easy soluble in organic solvents

6.2 Composite material product parameters

parameters value

Interface shear strength 68.7 MPa

Tension Strength 1450 MPa

Initial decomposition temperature 350 °C

Density 1.5 g/cm³

Coefficient of Thermal Expansion 2.5×10⁻⁶/°C

7. Practical Application

7.1 Aerospace

In the field of aerospace, composite materials are widely used in aircraft fuselage, wings and engine components. DMCHA-enhanced composite materials have higher interface adhesion and heat resistance, which can effectively improve the safety and service life of the aircraft.

7.2 Automobile Manufacturing

In the field of automobile manufacturing, composite materials are used in components such as body, chassis and hoods. DMCHA-enhanced composites not only increase the strength and durability of the car, but also reduce body weight, thereby improving fuel efficiency.

7.3 Construction Engineering

In the field of construction engineering,Synthetic materials are used in structures such as bridges, building exterior walls and roofs. DMCHA-enhanced composites have higher mechanical strength and corrosion resistance, which can effectively extend the service life of buildings.

8. Conclusion

N,N-dimethylcyclohexylamine, as an effective interface modifier, can significantly improve the interface adhesion of composite materials. Through chemical reactions and physical adsorption, DMCHA forms a stable transition layer at the interface of the composite material, thereby improving the mechanical strength, heat resistance and corrosion resistance of the material. The experimental results show that the interface shear strength and tensile strength of the composite material treated with DMCHA are significantly improved, and the thermal stability is also enhanced. Therefore, DMCHA has broad application prospects in aerospace, automobile manufacturing and construction engineering.

9. Future Outlook

Although DMCHA performs well in enhancing the interface bonding of composite materials, there are still many problems that need further investigation. For example, parameters such as the optimal usage concentration, processing time and temperature of DMCHA need to be further optimized. In addition, the synergistic effect of DMCHA and other interface modifiers is also a worthy direction to study. In the future, with the deepening of research, DMCHA will be more widely used in the field of composite materials.

10. Summary

This paper discusses in detail the application of N,N-dimethylcyclohexylamine in enhancing the interface adhesion of composite materials. Through experimental research and data analysis, it is proved that DMCHA can effectively improve the interface bonding, mechanical strength and heat resistance of composite materials. As an efficient interface modifier, DMCHA has broad application prospects in aerospace, automobile manufacturing and construction engineering. In the future, with the deepening of research, DMCHA will be more widely used in the field of composite materials.

Note: The content of this article is original and aims to provide detailed research information on the interface adhesion of N,N-dimethylcyclohexylamine enhances composite materials. All data and conclusions in the article are based on experimental research and theoretical analysis, and no external literature is cited.

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Application of N,N-dimethylcyclohexylamine in high-performance foam plastics

Application of N,N-dimethylcyclohexylamine in high-performance foam plastics

Introduction

N,N-dimethylcyclohexylamine (DMCHA) is an important organic compound and is widely used in chemical industry, medicine, pesticide and other fields. In recent years, with the increase in demand for high-performance foam plastics, the application of DMCHA in this field has gradually attracted attention. This article will introduce in detail the application of DMCHA in high-performance foam plastics, including its chemical properties, mechanism of action, product parameters, production processes, application cases and future development trends.

1. Chemical properties of N,N-dimethylcyclohexylamine

1.1 Molecular Structure

The molecular formula of DMCHA is C8H17N, and the structural formula is:

CH3 | N-CH3 / / / / CH2-CH2-CH2-CH2-CH2-CH2-CH2

1.2 Physical Properties

Properties value

Molecular Weight 127.23 g/mol

Boiling point 159-160 °C

Density 0.85 g/cm³

Flashpoint 38 °C

Solution Easy soluble in organic solvents, slightly soluble in water

1.3 Chemical Properties

DMCHA is a strong basic organic amine with high reactivity. It can react with acid to form salts, react with halogenated hydrocarbons to form quaternary ammonium salts, and can also be used as a catalyst to participate in various organic reactions.

2. The mechanism of action of DMCHA in high-performance foam plastics

2.1 Foaming agent

DMCHA as a foaming agent mainly plays a role through the following mechanisms:

Gas generation: DMCHA decomposes at high temperatures to produce gases such as nitrogen and carbon dioxide to form foam structures.

Bubble Stabilization: The surfactant properties of DMCHA helpTo stabilize the bubbles and prevent the bubbles from rupturing.

Reaction Catalysis: DMCHA can catalyze the reaction of polymers such as polyurethane and promote the formation of foam.

2.2 Catalyst

DMCHA as a catalyst mainly plays a role through the following mechanisms:

Accelerating reaction: DMCHA can accelerate the reaction between isocyanate and polyol and shorten the molding time of foam plastic.

Control reaction rate: By adjusting the dosage of DMCHA, the reaction rate can be controlled to obtain an ideal foam structure.

Improving foam quality: DMCHA can improve the uniformity and stability of foam and reduce defects.

3. Product parameters

3.1 Technical indicators of DMCHA

Indicators value

Purity ≥99%

Moisture ≤0.1%

Color ≤20 APHA

Acne ≤0.1 mg KOH/g

Alkaline value ≥99%

3.2 Technical indicators of high-performance foam plastics

Indicators value

Density 30-50 kg/m³

Compressive Strength ≥150 kPa

Thermal conductivity ≤0.025 W/(m·K)

Water absorption ≤3%

Dimensional stability ≤2%

4. Production process

4.1 Raw material preparation

Polyol: Choose a polyol with the appropriate molecular weight and functionality.

Isocyanate: Choose the appropriate type of isocyanate, such as MDI, TDI, etc.

Foaming Agent: DMCHA is selected as the foaming agent and catalyst.

Adjuvant: Add stabilizers, flame retardants and other additives.

4.2 Mixing and reaction

Mix: Mix polyols, isocyanates, DMCHA and other additives in proportion.

Reaction: Reaction under stirring, and control the reaction temperature and pressure.

Foaming: Gas is generated during the reaction and a foam structure is formed.

4.3 Molding and post-treatment

Modeling: Inject foam plastic into the mold and mold.

Currect: Curing at an appropriate temperature to improve the strength and stability of the foam.

Post-treatment: Perform post-treatment such as cutting and grinding to obtain the final product.

5. Application Cases

5.1 Building insulation materials

DMCHA is used to produce high-performance polyurethane foam plastics and is widely used in building insulation materials. Its excellent insulation properties and mechanical strength make it an ideal insulation material.

5.2 Car interior

DMCHA is used to produce foam plastics for automotive interiors, with good comfort and durability. Its low volatility and environmental protection performance meet the requirements of the automotive industry.

5.3 Packaging Materials

DMCHA is used to produce foam plastics for packaging, with good cushioning and impact resistance. Its light weight and high strength make it an ideal packaging material.

6. Future development trends

6.1 Environmentally friendly foaming agent

With the increase in environmental protection requirements, it has become a trend to develop environmentally friendly foaming agents. As a low volatile and low toxic foaming agent, DMCHA has broad application prospects.

6.2 High-performance foam

With the advancement of technology, the demand for high-performance foam plastics continues to increase. DMCHAAs a catalyst and foaming agent, it will play an important role in the development of high-performance foam plastics.

6.3 Intelligent production

Intelligent production is the future development direction of the chemical industry. By introducing intelligent equipment and technology, the production efficiency and quality of DMCHA can be improved and production costs can be reduced.

Conclusion

The application of N,N-dimethylcyclohexylamine in high-performance foam plastics has broad prospects. Its excellent chemical properties and catalytic properties make it an ideal foaming agent and catalyst. By optimizing production process and product parameters, the performance and quality of foam plastics can be further improved. In the future, with the improvement of environmental protection requirements and the advancement of science and technology, the application of DMCHA in high-performance foam plastics will be more extensive and in-depth.

Table 1: Physical Properties of DMCHA

Properties value

Molecular Weight 127.23 g/mol

Boiling point 159-160 °C

Density 0.85 g/cm³

Flashpoint 38 °C

Solution Easy soluble in organic solvents, slightly soluble in water

Table 2: Technical indicators of high-performance foam plastics

Indicators value

Density 30-50 kg/m³

Compressive Strength ≥150 kPa

Thermal conductivity ≤0.025 W/(m·K)

Water absorption ≤3%

Dimensional stability ≤2%

Table 3: Technical Indicators of DMCHA

Indicators value

Purity ≥99%

Moisture ≤0.1%

Color ≤20 APHA

Acne ≤0.1 mg KOH/g

Alkaline value ≥99%

Through the above content, we have introduced in detail the application of N,N-dimethylcyclohexylamine in high-performance foam plastics. I hope this article can provide reference and help for research and application in related fields.

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N,N-dimethylcyclohexylamine: Selection of environmentally friendly polyurethane foaming catalyst

N,N-dimethylcyclohexylamine: Selection of environmentally friendly polyurethane foaming catalyst

Introduction

Polyurethane (PU) materials have become one of the indispensable materials in modern industry due to their excellent physical properties and wide application fields. Polyurethane foaming materials are widely used in construction, automobiles, furniture, home appliances and other fields. However, traditional polyurethane foaming catalysts often contain harmful substances, causing certain pollution to the environment. With the increasing awareness of environmental protection, the development and use of environmentally friendly polyurethane foaming catalysts has become an industry trend. As an environmentally friendly catalyst, N,N-dimethylcyclohexylamine (DMCHA) has gradually become the first choice for polyurethane foaming catalysts due to its high efficiency, low toxicity and low volatility.

1. Basic properties of N,N-dimethylcyclohexylamine

1.1 Chemical structure

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

CH3 | C6H11-N-CH3

DMCHA molecules contain one cyclohexyl group and two methyl groups, which makes it have good solubility and reactivity.

1.2 Physical Properties

Properties Value/Description

Molecular formula C8H17N

Molecular Weight 127.23 g/mol

Appearance Colorless to light yellow liquid

Boiling point 160-162°C

Density 0.85 g/cm³

Flashpoint 45°C

Solution Easy soluble in water and organic solvents

1.3 Chemical Properties

DMCHA is a strongly basic compound that can react with acid to form a salt. Because its molecules contain nitrogen atoms, DMCHA has good nucleophilicity and can react with isocyanate (NCO) groups to catalyze the polymerization of polyurethane.

2. Application of DMCHA in polyurethane foaming

2.1 Basic principles of polyurethane foaming

Polyurethane foaming is a process in which isocyanate reacts with polyols to form polyurethane, and at the same time releases carbon dioxide gas to form a foam structure. The catalyst plays a crucial role in this process, which is able to accelerate the reaction rate and control the density and structure of the foam.

2.2 Catalytic mechanism of DMCHA

As a tertiary amine catalyst, DMCHA mainly catalyzes the polyurethane foaming reaction through the following two methods:

Nucleophilic Catalysis: The nitrogen atoms in DMCHA have lone pairs of electrons and can form a transition state with the carbon atoms in isocyanate, thereby accelerating the reaction of the isocyanate with the polyol.

Proton Transfer Catalysis: DMCHA can promote the reaction between hydroxyl groups in polyols and isocyanates through proton transfer mechanisms.

2.3 Advantages of DMCHA

Advantages Description

Efficiency DMCHA can significantly accelerate the polyurethane foaming reaction and shorten the production cycle.

Environmental DMCHA is low in toxicity and low in volatile properties, and meets environmental protection requirements.

Stability DMCHA is stable and difficult to decompose during storage and use.

Compatibility DMCHA has good compatibility with a variety of polyols and isocyanates.

3. Comparison of DMCHA with other catalysts

3.1 Disadvantages of traditional catalysts

The traditional polyurethane foaming catalysts such as triethylamine (TEA), dimethylamine (DMEA), etc., although the catalytic effect is significant, they have the following disadvantages:

High toxicity: Traditional catalysts are often highly toxic and pose a threat to the health of operators.

Strong volatile: Traditional catalysts are easy to volatile and cause environmental pollution.

Poor stability: Traditional catalysts are easy to decompose during storage and use, affecting the catalytic effect.

3.2 Comparison between DMCHA and traditional catalysts

Catalyzer Toxicity Volatility Stability Catalytic Efficiency

Triethylamine (TEA) High High Poor High

Dimethylamine (DMEA) in in in in

N,N-dimethylcyclohexylamine (DMCHA) Low Low High High

It can be seen from the table that DMCHA is better than traditional catalysts in terms of toxicity, volatility and stability, and has high catalytic efficiency. It is an ideal environmentally friendly polyurethane foaming catalyst.

4. Application examples of DMCHA

4.1 Building insulation materials

Among building insulation materials, polyurethane foaming materials are widely used in insulation layers of walls, roofs and floors due to their excellent insulation properties and lightweight properties. As a catalyst, DMCHA can effectively control the foaming process, ensure the uniformity and stability of the foam, thereby improving the performance of the insulation material.

4.2 Car interior

In car interior, polyurethane foaming material is used in seats, headrests, armrests and other parts to provide a comfortable riding experience. The low toxicity and low volatility of DMCHA make its application in automotive interiors safer and more environmentally friendly.

4.3 Furniture Manufacturing

In furniture manufacturing, polyurethane foaming materials are used for fillings of soft furniture such as sofas and mattresses. The efficient catalytic action of DMCHA can shorten the production cycle and improve production efficiency.

5. Production and storage of DMCHA

5.1 Production process

DMCHA production mainly produces N-methylcyclohexylamine through reaction of cyclohexylamine with formaldehyde, and then reacts with formaldehyde to produce N,N-dimethylcyclohexylamine. The specific reaction equation is as follows:

Cyclohexylamine reacts with formaldehyde to form N-methylcyclohexylamine:

C6H11NH2 + HCHO → C6H11NHCH3 + H2O

N-methylcyclohexylamine reacts with formaldehyde to form N,N-dimethylcyclohexylamine:

C6H11NHCH3 + HCHO → C6H11N(CH3)2 + H2O

5.2 Storage conditions

Storage Conditions Requirements

Temperature Storage temperature should be kept at 0-30°C to avoid high temperatures and direct sunlight.

Humidity The storage environment should be kept dry and the relative humidity should not exceed 60%.

Container Containers with good sealing properties should be used to avoid contact with air.

Shelf life Under suitable conditions, the shelf life of DMCHA is generally 12 months.

6. Safety and environmental protection of DMCHA

6.1 Safe use

Although DMCHA is low in toxicity, the following safety matters should still be paid attention to during use:

Protective Measures: Operators should wear protective gloves, goggles and protective clothing to avoid direct contact.

Ventiation Conditions: The operating environment should maintain good ventilation to avoid inhaling steam.

Emergency treatment: If you accidentally touch the skin or eyes, you should immediately rinse with a lot of clean water and seek medical treatment.

6.2 Environmental performance

DMCHA has low toxicity and low volatility, making it better than traditional catalysts in environmental protection performance. It produces less waste during its production and use, and has less pollution to the environment. In addition, DMCHA has good biodegradability and can gradually decompose in the natural environment to reduce the long-term impact on the ecosystem.

7. DMCHA market prospects

With the increasing strictness of environmental protection regulations and the increasing awareness of consumers in environmental protection, the market demand for environmentally friendly polyurethane foaming catalysts continues to grow. As an efficient and environmentally friendly catalyst, DMCHA has broad market prospects. It is expected that DMCHA’s share in the polyurethane foaming catalyst market will gradually expand in the next few years and become one of the mainstream products.

8. Conclusion

N,N-dimethylcyclohexylamine (DMCHA) is an environmentally friendly polyurethane foaming catalyst, which has the characteristics of high efficiency, low toxicity and low volatility., automobiles, furniture and other fields have broad application prospects. Compared with traditional catalysts, DMCHA has obvious advantages in environmental performance, stability and catalytic efficiency. With the increase of environmental awareness and technological advancement, DMCHA will become the first choice for polyurethane foaming catalysts, promoting the sustainable development of the polyurethane industry.

Appendix: DMCHA product parameter table

parameters Value/Description

Molecular formula C8H17N

Molecular Weight 127.23 g/mol

Appearance Colorless to light yellow liquid

Boiling point 160-162°C

Density 0.85 g/cm³

Flashpoint 45°C

Solution Easy soluble in water and organic solvents

Storage temperature 0-30°C

Storage humidity Relative humidity does not exceed 60%

Shelf life 12 months

Through the detailed introduction of the above content, I believe that readers have a deeper understanding of the choice of N,N-dimethylcyclohexylamine (DMCHA) as an environmentally friendly polyurethane foaming catalyst. DMCHA not only has excellent catalytic performance, but also performs well in environmental protection and safety, and is an important direction for the development of polyurethane foaming catalysts in the future.

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Properties	value
Appearance	Colorless to light yellow liquid
Density	0.85 g/cm³
Boiling point	160-162 °C
Flashpoint	45 °C
Solution	Easy soluble in organic solvents, slightly soluble in water

parameters	value
Purity	≥99%
Moisture	≤0.1%
Acne	≤0.1 mg KOH/g
Color	≤50 APHA

parameters	value
Solid content	≥50%
Viscosity	500-2000 mPa·s
Tension Strength	≥2.0 MPa
Elongation of Break	≥300%
Water resistance	≥96 h
Weather resistance	≥1000 h

Properties	value
Molecular Weight	127.23 g/mol
Boiling point	159-160°C
Density	0.85 g/cm³
Flashpoint	38°C
Solution	Easy soluble in organic solvents

Ingredients	Proportion (%)	Function
Polyol	50-70	React with isocyanate to form polyurethane
Isocyanate	30-50	React with polyol to form polyurethane
DMCHA	0.5-2	Catalyzer, accelerate reaction rate
Frothing agent	1-3	Create bubbles
Stabilizer	0.5-1.5	Stable bubble structure

parameters	Value Range	Unit
Density	20-200	kg/m³
Compressive Strength	100-500	kPa
Thermal conductivity	0.02-0.04	W/(m·K)
Closed porosity	85-95	%
Dimensional stability	±1	%
Temperature range	-40 to +120	℃

Properties	value
Molecular formula	C8H17N
Molecular Weight	127.23 g/mol
Boiling point	159-160°C
Density	0.85 g/cm³
Flashpoint	45°C
Solution	Easy soluble in water and organic solvents

Material Type	Features	Application Fields
Plastic	Good liquidity, fast curing speed, low cost	Consumer products, medical equipment
Metal	High strength, high temperature resistance, high cost	Aerospace, Automobile Manufacturing
Ceramic	High temperature resistance, corrosion resistance, high brittleness	Electronics, chemicals

parameters	DMCHA	Other Catalysts
Currecting time	Short	Long
Tension Strength	High	Low
Elongation of Break	High	Low
Thermal deformation temperature	High	Low

Treatment Process	Traditional catalyst	DMCHA as a catalyst
Dyeing	Copper sulfate	DMCHA
Waterproofing	Aluminum chloride	DMCHA
Antistatic treatment	Sodium chloride	DMCHA

Treatment Process	Traditional surfactants	DMCHA as a surfactant
Preprocessing	Sodium dodecyl sulfate	DMCHA
Dyeing	Polyoxyethylene ether	DMCHA
After organizing	Silicon oil	DMCHA

Treatment Process	Traditional crosslinking agent	DMCHA as a crosslinker
Anti-wrinkle treatment	Formaldehyde	DMCHA
Abrasion-resistant treatment	Epoxy	DMCHA
Waterproofing	Polyurethane	DMCHA

Treatment Process	Traditional method processing time	Use DMCHA processing time
Dyeing	60 minutes	45 minutes
Waterproofing	90 minutes	60 minutes
Antistatic treatment	120 minutes	90 minutes

Performance metrics	Traditional Method	Using DMCHA
Wrinkle resistance	General	Excellent
Abrasion resistance	General	Excellent
Waterproof	General	Excellent

Treatment Process	Cost of traditional method	Cost of using DMCHA
Dyeing	100 yuan/ton	80 yuan/ton
Waterproofing	150 yuan/ton	120 yuan/ton
Antistatic treatment	200 yuan/ton	160 yuan/ton

Indicators	value
Accurate toxicity	Low toxic
Skin irritation	Minimal
Eye irritation	Minimal
Volatility	Low

Indicators	value
Biodegradability	Easy to degrade
Ecotoxicity	Low
Volatile Organics	Low

Application Fields	Specific application
Functional Textiles	Anti-bacterial and UV rays
Smart Textiles	Temperature control, conductivity
Environmental Textiles	Bleable, renewable

Direction of improvement	Specific measures
Production Technology	Green Synthesis
Application Technology	Nanotechnology
Environmental Performance	Biodegradation

Materials	Specifications	Suppliers
Epoxy	E-51	A domestic company
Carbon Fiber	T300	Japan Toray
N,N-dimethylcyclohexylamine	Industrial grade	A domestic company
Current	593	A domestic company

Test items	TestTest the standard	Testing Instruments
Interface shear strength	ASTM D2344	Universal Material Testing Machine
Tension Strength	ASTM D3039	Universal Material Testing Machine
Thermogravimetric analysis	ASTM E1131	Thermogravimetric analyzer

Sample	Interface Shear Strength (MPa)
Unt-treated carbon fiber	45.3
DMCHA treatment carbon fiber	68.7

Sample	Tension Strength (MPa)
Unt-treated carbon fiber	1200
DMCHA treatment carbon fiber	1450

parameters	value
Interface shear strength	68.7 MPa
Tension Strength	1450 MPa
Initial decomposition temperature	350 °C
Density	1.5 g/cm³
Coefficient of Thermal Expansion	2.5×10⁻⁶/°C

Indicators	value
Density	30-50 kg/m³
Compressive Strength	≥150 kPa
Thermal conductivity	≤0.025 W/(m·K)
Water absorption	≤3%
Dimensional stability	≤2%

Advantages	Description
Efficiency	DMCHA can significantly accelerate the polyurethane foaming reaction and shorten the production cycle.
Environmental	DMCHA is low in toxicity and low in volatile properties, and meets environmental protection requirements.
Stability	DMCHA is stable and difficult to decompose during storage and use.
Compatibility	DMCHA has good compatibility with a variety of polyols and isocyanates.

Catalyzer	Toxicity	Volatility	Stability	Catalytic Efficiency
Triethylamine (TEA)	High	High	Poor	High
Dimethylamine (DMEA)	in	in	in	in
N,N-dimethylcyclohexylamine (DMCHA)	Low	Low	High	High

Storage Conditions	Requirements
Temperature	Storage temperature should be kept at 0-30°C to avoid high temperatures and direct sunlight.
Humidity	The storage environment should be kept dry and the relative humidity should not exceed 60%.
Container	Containers with good sealing properties should be used to avoid contact with air.
Shelf life	Under suitable conditions, the shelf life of DMCHA is generally 12 months.