Application of N,N-dimethylcyclohexylamine as a high-efficiency catalyst in the coating industry

2025-03-09by admin

Application of N,N-dimethylcyclohexylamine in the coating industry

Introduction

N,N-dimethylcyclohexylamine (DMCHA) is an important organic compound that is widely used as a high-efficiency catalyst in the coating industry. Its unique chemical structure and properties make it play a key role in coating formulations. This article will introduce in detail the physical and chemical properties of N,N-dimethylcyclohexylamine, product parameters, application and advantages in the coating industry, and display relevant data in the form of tables so that readers can better understand its application value.

1. Physical and chemical 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
       |
  C6H11-N-CH3

1.2 Physical Properties

Properties	Value/Description
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
odor	Ammonia

1.3 Chemical Properties

N,N-dimethylcyclohexylamine is a strong basic compound with good nucleophilicity and catalytic activity. Its alkalinity enables it to effectively promote cross-linking reactions in the coating and improves the hardness and durability of the coating film.

2. Product parameters

2.1 Industrial grade N,N-dimethylcyclohexylamine

parameters	Value/Description
Purity	≥99%
Moisture content	≤0.1%
Acne	≤0.1 mg KOH/g
Color	≤50 APHA
Packaging	200 kg/barrel

2.2 High purity N,N-dimethylcyclohexylamine

parameters	Value/Description
Purity	≥99.5%
Moisture content	≤0.05%
Acne	≤0.05 mg KOH/g
Color	≤30 APHA
Packaging	25 kg/barrel

3. Application of N,N-dimethylcyclohexylamine in the coating industry

3.1 Polyurethane coating

N,N-dimethylcyclohexylamine acts as a catalyst in polyurethane coatings, and can significantly improve the curing speed and coating performance of the coating. Its catalytic effect is mainly reflected in the following aspects:

Promote the reaction between isocyanate and hydroxyl group: N,N-dimethylcyclohexylamine can accelerate the reaction between isocyanate and polyol and shorten the curing time of the coating.
Improve the hardness of the coating film: By promoting crosslinking reaction, N,N-dimethylcyclohexylamine can improve the hardness and wear resistance of the coating film.
Improve the gloss of the coating: Its catalytic effect helps to form a uniform coating film and improves the gloss of the coating film.

3.2 Epoxy resin coating

In epoxy resin coatings, N,N-dimethylcyclohexylamine as a curing agent can effectively promote the reaction between epoxy resin and amine-based curing agent, and improve the mechanical properties and chemical resistance of the coating film.

Accelerating the curing reaction: N,N-dimethylcyclohexylamine can significantly shorten the curing time of epoxy resin coatings and improve production efficiency.
Enhance the adhesion of the coating: Its catalytic effect helps improve coatingAdhesion between the film and the substrate enhances the durability of the coating.
Improve the chemical resistance of coating films: By promoting crosslinking reactions, N,N-dimethylcyclohexylamine can improve the chemical resistance and corrosion resistance of coating films.

3.3 Acrylic coating

In acrylic coatings, N,N-dimethylcyclohexylamine as a catalyst can promote the polymerization reaction of acrylic monomers and improve the hardness and weather resistance of the coating film.

Promote polymerization: N,N-dimethylcyclohexylamine can accelerate the polymerization of acrylic monomers and shorten the curing time of the coating.
Improve the hardness of the coating film: Its catalytic effect helps to improve the hardness and wear resistance of the coating film.
Improve the weather resistance of the coating film: By promoting crosslinking reactions, N,N-dimethylcyclohexylamine can improve the weather resistance and UV resistance of the coating film.

4. Advantages of N,N-dimethylcyclohexylamine in the coating industry

4.1 High-efficiency Catalysis

N,N-dimethylcyclohexylamine has high catalytic activity, which can significantly shorten the curing time of the coating and improve production efficiency.

4.2 Improve coating performance

By promoting crosslinking reaction, N,N-dimethylcyclohexylamine can improve the hardness, wear resistance, chemical resistance and weather resistance of the coating and extend the service life of the coating.

4.3 Environmental protection

The application of N,N-dimethylcyclohexylamine in coatings can reduce the amount of organic solvents, reduce VOC emissions, and meet environmental protection requirements.

4.4 Economy

Due to its efficient catalytic effect, N,N-dimethylcyclohexylamine can reduce the amount of coating, reduce production costs, and improve economic benefits.

5. Application Cases

5.1 Automotive Paint

In automotive coatings, N,N-dimethylcyclohexylamine as a catalyst can significantly improve the curing speed and coating performance of the coating, meeting the automotive industry’s demand for high-performance coatings.

5.2 Building paint

In architectural coatings, N,N-dimethylcyclohexylamine as a curing agent can improve the hardness and weather resistance of the coating film and extend the service life of the building.

5.3 Industrial Coatings

In industrial coatings, N,N-dimethylcyclohexylamine as a catalyst can improve the chemical resistance and wear resistance of the coating and meet the needs of industrial equipment for high-performance coatings.

6. Conclusion

N,N-dimethylcyclohexylamine as a highly efficient catalyst,There are wide application prospects in the material industry. Its unique chemical structure and properties make it play a key role in polyurethane coatings, epoxy coatings and acrylic coatings. By promoting crosslinking reactions, N,N-dimethylcyclohexylamine can significantly improve the curing speed and coating performance of the coating, meeting the demand for high-performance coatings in different fields. In the future, with the continuous development of the coating industry, the application of N,N-dimethylcyclohexylamine will be more widely used, making greater contributions to the development of the coating industry.

Appendix: Application data of N,N-dimethylcyclohexylamine in the coating industry

Coating Type	Application Effect	Advantages
Polyurethane coating	Improve curing speed and enhance coating hardness	Efficient catalysis to improve production efficiency
Epoxy resin coating	Accelerate the curing reaction and enhance adhesion	Improve the chemical resistance and corrosion resistance of coating films
Acrylic Paints	Promote polymerization reaction and improve weather resistance	Improve the hardness and wear resistance of the coating

Through the above data and case analysis, it can be seen that the application of N,N-dimethylcyclohexylamine in the coating industry has significant advantages and wide application prospects.