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DMCHA: The ideal catalyst for a variety of polyurethane formulations

admin 3月 9th, 2025 News

DMCHA: Ideal catalyst for a variety of polyurethane formulations

Introduction

Polyurethane (PU) is a multifunctional polymer material widely used in construction, automobile, furniture, shoe materials, packaging and other fields. Its excellent physical properties and chemical stability make it one of the indispensable materials in modern industry. However, the properties of polyurethanes depend heavily on the catalysts in their formulation. The catalyst not only affects the reaction rate of the polyurethane, but also determines the physical properties and chemical stability of the final product. Among many catalysts, DMCHA (N,N-dimethylcyclohexylamine) has become an ideal choice in polyurethane formulations due to its excellent catalytic properties and wide applicability.

This article will introduce the characteristics, application areas, product parameters and their advantages in polyurethane formulation in detail, helping readers to fully understand this important catalyst.

1. Basic characteristics of DMCHA

1.1 Chemical structure

The chemical name of DMCHA is N,N-dimethylcyclohexylamine, and its molecular formula is C8H17N. It is a colorless to light yellow liquid with a unique odor of amine compounds. The molecular structure of DMCHA contains two methyl groups and one cyclohexyl group, which gives it unique chemical properties.

1.2 Physical Properties

parameters	value
Molecular Weight	127.23 g/mol
Boiling point	160-162°C
Density	0.85 g/cm³
Flashpoint	45°C
Solution	Easy soluble in water and organic solvents
Steam Pressure	0.5 mmHg at 20°C

1.3 Chemical Properties

DMCHA is a strongly basic amine compound with high reactivity. It can react with isocyanate (NCO) groups to form carbamate bonds, thereby promoting the formation of polyurethane. In addition, DMCHA can react with other acidic or neutral compounds and exhibit good chemical stability.

2. Application of DMCHA in polyurethane formulations

2.1 Polyurethane shapeMechanism

The formation of polyurethane is mainly dependent on the reaction between isocyanate and polyol. This reaction usually requires a catalyst to accelerate the reaction rate and control the selectivity of the reaction. As a highly efficient catalyst, DMCHA can promote the reaction between isocyanate and polyol at lower temperatures to form high-quality polyurethane.

2.2 Catalytic action of DMCHA

The catalytic effect of DMCHA is mainly reflected in the following aspects:

Accelerating the reaction rate: DMCHA can significantly increase the reaction rate between isocyanate and polyol, shorten the reaction time, and improve production efficiency.
Control reaction selectivity: DMCHA can selectively promote the reaction between isocyanate and polyol, reduce the occurrence of side reactions, and improve the purity of the product.
Improving product performance: DMCHA can optimize the molecular structure of polyurethane and improve the physical and chemical stability of the product.

2.3 Application Areas

DMCHA is widely used in the following polyurethane formulations:

Rigid Foam: DMCHA is particularly well-known in rigid polyurethane foams. It can promote the reaction of isocyanate with polyols, and produce high-density rigid foams, with excellent thermal insulation properties and mechanical strength.
Soft Foam: In soft polyurethane foam, DMCHA can adjust the elasticity and softness of the foam, making it suitable for furniture, mattresses and other products.
Coatings and Adhesives: DMCHA is also widely used in polyurethane coatings and adhesives. It can improve the adhesion and wear resistance of the paint and enhance the adhesive strength.
Elastomer: The application of DMCHA in polyurethane elastomers can improve the elasticity and durability of products, and is suitable for automotive parts, shoe materials and other fields.

III. Product parameters of DMCHA

3.1 Product Specifications

parameters	value
Appearance	Colorless to light yellow liquid
Purity	?99%
Moisture content	?0.1%
Acne	?0.1 mg KOH/g
Amine Value	440-460 mg KOH/g
Flashpoint	45°C
Density	0.85 g/cm³
Boiling point	160-162°C

3.2 Storage and Transport

DMCHA should be stored in a cool, dry and well-ventilated place to avoid direct sunlight and high temperatures. Sealed containers should be used during transportation to prevent leakage and contamination. The storage period of DMCHA is generally 12 months, and its performance should be retested after the period exceeds.

3.3 Safety precautions

DMCHA is a strongly alkaline compound that has certain corrosion and irritation. Protective gloves, goggles and protective clothing should be worn during use to avoid direct contact with the skin and eyes. If you are not careful, you should immediately rinse with a lot of clean water and seek medical help.

IV. Advantages of DMCHA in polyurethane formulations

4.1 High-efficiency Catalysis

DMCHA has high efficiency catalytic properties and can promote the reaction between isocyanate and polyol at lower temperatures, significantly shorten the reaction time and improve production efficiency.

4.2 Wide applicability

DMCHA is suitable for a variety of polyurethane formulations, including rigid foams, soft foams, coatings, adhesives and elastomers. Its wide applicability makes it an ideal catalyst in the polyurethane industry.

4.3 Optimize product performance

DMCHA can optimize the molecular structure of polyurethane and improve the physical properties and chemical stability of the product. For example, in rigid foam, DMCHA can improve the thermal insulation properties and mechanical strength of the foam; in soft foam, DMCHA can adjust the elasticity and softness of the foam.

4.4 Environmental protection and safety

DMCHA will not produce harmful substances during the reaction process and has good environmental protection performance. In addition, the storage and transportation of DMCHA are relatively safe. As long as the correct operating specifications are followed, safety accidents can be effectively avoided.

V. Comparison between DMCHA and other catalysts

5.1 Comparison with tertiary amine catalysts

Term amine catalysts are one of the commonly used catalysts in the polyurethane industry. Compared with DMCHA, tertiary amine catalysts have lower catalytic efficiency,The response time is long. In addition, tertiary amine catalysts may cause side reactions in some formulations, affecting the performance of the product.

5.2 Comparison with metal catalysts

Metal catalysts (such as organotin compounds) are also widely used in the polyurethane industry. Compared with DMCHA, metal catalysts have higher catalytic efficiency, but they have certain toxicity and environmental pollution problems. As an organic amine catalyst, DMCHA has better environmental protection performance.

5.3 Comparison with acid catalysts

Acidic catalysts (such as phosphoric acid) are also used in certain polyurethane formulations. Compared with DMCHA, acid catalysts have lower catalytic efficiency and may cause corrosion to the equipment. As an alkaline catalyst, DMCHA has better equipment compatibility.

VI. Future development of DMCHA

6.1 Research and development of new catalysts

With the continuous development of the polyurethane industry, the requirements for catalysts are becoming higher and higher. In the future, researchers may develop more efficient and environmentally friendly new catalysts to meet the needs of different application areas.

6.2 Promotion of Green Chemistry

Green chemistry is an important direction for the future development of the chemical industry. As an environmentally friendly catalyst, DMCHA will be widely used under the promotion of green chemistry. In the future, DMCHA production processes may be further optimized to reduce the impact on the environment.

6.3 Application of intelligent production

With the popularity of intelligent production, the production and application process of DMCHA may be more automated and intelligent. By introducing advanced control systems and data analysis technology, the production efficiency and application effect of DMCHA can be improved.

7. Conclusion

DMCHA is a highly efficient and environmentally friendly catalyst and has a wide range of application prospects in the polyurethane industry. Its excellent catalytic properties, wide applicability and good environmental protection make it an ideal choice for polyurethane formulations. In the future, with the development of new catalysts and the promotion of green chemistry, DMCHA will play a more important role in the polyurethane industry.

Through the introduction of this article, I believe readers have a more comprehensive understanding of DMCHA. I hope this article can provide valuable reference for practitioners of the polyurethane industry and promote the sustainable development of the polyurethane industry.

The importance of DMCHA in the manufacturing process of polyurethane fibers

admin 3月 9th, 2025 News

The importance of DMCHA in the manufacturing process of polyurethane fibers

Introduction

Polyurethane fiber is a high-performance synthetic fiber that is widely used in textile, medical, automobile, construction and other fields. Its unique elasticity, wear resistance and chemical resistance make it the material of choice in many industries. In the manufacturing process of polyurethane fibers, the choice of catalyst is crucial, and N,N-dimethylcyclohexylamine (DMCHA) plays an indispensable role as an efficient catalyst. This article will discuss in detail the importance of DMCHA in the manufacturing of polyurethane fibers, covering its chemical properties, mechanism of action, product parameters, application examples and future development trends.

1. Chemical properties of DMCHA

1.1 Chemical structure

The chemical name of DMCHA is N,N-dimethylcyclohexylamine and the molecular formula is C8H17N. It is a colorless to light yellow liquid with a strong amine odor. The molecular structure of DMCHA contains a cyclohexane ring and two methyl-substituted amino groups, which imparts its unique chemical properties.

1.2 Physical Properties

parameters	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 a strong basic compound with good nucleophilicity and catalytic activity. It is able to react with isocyanate (NCO) groups to form carbamates, a key step in polyurethane synthesis. In addition, DMCHA also has good thermal stability and chemical stability, and can maintain activity in high temperatures and strong acid and alkali environments.

2. The mechanism of action of DMCHA in the manufacturing of polyurethane fibers

2.1 Catalysis

DMCHA is mainly used as a catalyst in the manufacturing process of polyurethane fibers. Its catalytic effect is mainly reflected in the following aspects:

Promote the reaction of isocyanate with polyols>: DMCHA can accelerate the reaction between isocyanate and polyol to form urethane, which is a key step in the growth of polyurethane chains.
Control reaction rate: By adjusting the amount of DMCHA, the reaction rate of polyurethane synthesis can be accurately controlled, thereby obtaining an ideal molecular weight and molecular structure.
Improving reaction efficiency: The high catalytic activity of DMCHA can significantly improve reaction efficiency, shorten reaction time, and reduce production costs.

2.2 Reaction mechanism

The catalytic action of DMCHA is mainly achieved through the following reaction mechanisms:

Nucleophilic Attack: The amino nitrogen atoms in DMCHA have lone pairs of electrons and can nucleophilic attack on carbon atoms in isocyanate to form a transition state.
Proton Transfer: In the transition state, protons are transferred from polyol to DMCHA to form carbamate.
Channel Growth: The generated carbamate continues to react with isocyanate to form polyurethane chains.

2.3 Reaction conditions

parameters	value
Reaction temperature	60-80 °C
Reaction time	2-4 hours
DMCHA dosage	0.1-0.5% (based on polyol weight)
Isocyanate/polyol ratio	1:1-1:1.2

III. Examples of application of DMCHA in polyurethane fiber manufacturing

3.1 Elastic fiber

Elastic fiber is an important type of polyurethane fiber and is widely used in the textile industry. DMCHA plays a key role in the manufacturing of elastic fibers, and its specific applications are as follows:

Improving elasticity: By precisely controlling the amount of DMCHA, polyurethane fibers with excellent elasticity can be obtained.
Improving wear resistance: The catalytic action of DMCHA can improve the molecular weight of polyurethane fibers, thereby improving its wear resistance.
Enhanced chemical resistance: The high catalytic activity of DMCHA can promote uniform cross-linking of polyurethane fibers and enhance its chemical resistance.

3.2 Medical fiber

Medical fibers require extremely high biocompatibility and chemical stability of materials. DMCHA has the following advantages in the manufacturing of medical fibers:

Improving biocompatibility: The catalytic action of DMCHA can reduce the occurrence of side reactions and improve the biocompatibility of polyurethane fibers.
Enhanced Chemical Stability: The high catalytic activity of DMCHA can promote uniform cross-linking of polyurethane fibers and enhance its chemical stability.
Improving Processing Performance: The catalytic action of DMCHA can improve the processing performance of polyurethane fibers, making it easier to spin and mold.

3.3 Car interior fiber

Automatic interior fibers need to have good wear resistance, heat resistance and chemical resistance. DMCHA has the following applications in the manufacturing of automotive interior fibers:

Improving wear resistance: The catalytic action of DMCHA can increase the molecular weight of polyurethane fibers, thereby improving its wear resistance.
Enhanced Heat Resistance: The high catalytic activity of DMCHA can promote uniform cross-linking of polyurethane fibers and enhance its heat resistance.
Improving chemical resistance: The catalytic action of DMCHA can improve the chemical resistance of polyurethane fibers, making it more suitable for automotive interior environments.

IV. Product parameters of DMCHA in polyurethane fiber manufacturing

4.1 Catalyst performance parameters

parameters	value
Catalytic Activity	High
Reaction rate	Quick
Thermal Stability	Good
Chemical Stability	Good
Solution	Easy soluble in organic solvents

4.2 PolyurethaneFiber performance parameters

parameters	value
Elasticity	Excellent
Abrasion resistance	High
Chemical resistance	High
Heat resistance	Good
Biocompatibility	Good

4.3 Processing parameters

parameters	value
Reaction temperature	60-80 °C
Reaction time	2-4 hours
DMCHA dosage	0.1-0.5% (based on polyol weight)
Isocyanate/polyol ratio	1:1-1:1.2

V. Advantages and challenges of DMCHA in polyurethane fiber manufacturing

5.1 Advantages

High-efficiency Catalysis: DMCHA has high catalytic activity and can significantly improve the synthesis efficiency of polyurethane fibers.
Precise Control: By adjusting the amount of DMCHA, the molecular weight and molecular structure of polyurethane fibers can be accurately controlled.
Widely applicable: DMCHA is suitable for manufacturing a variety of types of polyurethane fibers and has a wide range of application prospects.

5.2 Challenge

Environmental Impact: As an organic amine compound, DMCHA may have certain impacts on the environment and requires corresponding environmental protection measures.
Cost Control: The price of DMCHA is relatively high, and how to control costs while ensuring catalytic effects is a challenge.
Safety: DMCHA is toxic and irritating, and strict safety measures are required during the production process.

VI. Future development trends

6.1 Green Catalysis

With the increase in environmental awareness, developing green and environmentally friendly catalysts has become the trend of future development. Green transformation of DMCHA, such as the development of low-toxic and low-volatilization DMCHA derivatives, will be the research direction in the future.

6.2 High-efficiency Catalysis

Improving the catalytic efficiency of DMCHA and reducing its dosage is the focus of future research. Through molecular design and structural optimization, the development of DMCHA derivatives with higher catalytic activity will help improve the production efficiency of polyurethane fibers.

6.3 Multifunctional catalysis

Developing versatile DMCHA derivatives, such as compounds that have both catalytic and stabilizing effects, will be a hot topic in future research. This multifunctional catalyst can simplify production processes and improve product quality.

Conclusion

DMCHA, as an efficient catalyst, plays an important role in the manufacturing process of polyurethane fibers. Its high catalytic activity, precise control ability and wide applicability make it a key material in the manufacturing of polyurethane fibers. However, DMCHA’s environmental impact, cost control and safety issues also need attention. In the future, with the development of green catalysis, efficient catalysis and multifunctional catalysis technologies, DMCHA and its derivatives will play a greater role in the manufacturing of polyurethane fibers and promote the sustainable development of the polyurethane fiber industry.

The latest developments of catalyst PC-8 in the furniture manufacturing industry

admin 3月 9th, 2025 News

New progress of catalyst PC-8 in the furniture manufacturing industry

Introduction

Catalytic PC-8 is a highly efficient and environmentally friendly chemical additive, which has been widely used in the furniture manufacturing industry in recent years. Its unique chemical properties and versatility make it an important tool for improving furniture manufacturing efficiency, improving product quality and reducing production costs. This article will introduce in detail the new progress of the catalyst PC-8 in the furniture manufacturing industry, including its product parameters, application fields, advantage analysis and future development trends.

1. Basic introduction to the catalyst PC-8

1.1 Definition of Catalyst PC-8

Catalytic PC-8 is a multifunctional chemical additive, mainly used to accelerate the chemical reaction process and improve the reaction efficiency. In the furniture manufacturing industry, the catalyst PC-8 is mainly used in wood treatment, coating curing, adhesive reaction and other links.

1.2 Chemical properties of catalyst PC-8

The main components of the catalyst PC-8 include organometallic compounds, organic acids and stabilizers. Its chemical properties are stable, can maintain activity at room temperature, and is environmentally friendly, and meets the environmental protection requirements of the modern furniture manufacturing industry.

1.3 Product parameters of catalyst PC-8

parameter name	parameter value
Appearance	Colorless transparent liquid
Density	1.05 g/cm³
Boiling point	150°C
Flashpoint	60°C
pH value	6.5-7.5
Solution	Easy to soluble in water
Storage temperature	5-30°C
Shelf life	12 months

2. Application of catalyst PC-8 in furniture manufacturing

2.1 Wood treatment

In furniture manufacturing, wood treatment is a key link. The catalyst PC-8 can be used for corrosion, insect and waterproofing of wood to improve the durability and stability of wood.

2.1.1 Anti-corrosion treatment

UrgentThe chemical agent PC-8 can effectively inhibit the growth of fungi and bacteria in wood and extend the service life of wood. The processing process is simple, just dilute the catalyst PC-8 and spray or soak the wood.

2.1.2 Insect control treatment

Catalytic PC-8 has a significant repelling effect on common wood pests such as termites and borers. By mixing the catalyst PC-8 with insect repellent, the insect repellent can be further improved.

2.1.3 Waterproofing

Catalytic PC-8 can penetrate into the inside of the wood, forming a waterproof membrane, effectively preventing moisture penetration, reducing the expansion and contraction of the wood, and improving the stability of the furniture.

2.2 Coating Curing

In furniture manufacturing, the curing speed and effect of the paint directly affect production efficiency and product quality. The catalyst PC-8 can significantly accelerate the curing process of the coating and improve the hardness and wear resistance of the coating.

2.2.1 Accelerated curing

The catalyst PC-8 can react with the resin in the coating to form a stable crosslinking structure, thereby accelerating the curing process of the coating. Experiments show that after using the catalyst PC-8, the curing time of the coating can be shortened by more than 30%.

2.2.2 Improve coating performance

The catalyst PC-8 can not only accelerate curing, but also improve the hardness and wear resistance of the coating. By adjusting the amount of catalyst PC-8 added, the hardness and gloss of the coating can be controlled to meet the needs of different furniture products.

2.3 Adhesive reaction

In furniture manufacturing, adhesives are widely used. The catalyst PC-8 can be used to accelerate the curing process of adhesives and improve the adhesive strength and durability.

2.3.1 Accelerated curing

The catalyst PC-8 can react with the resin in the adhesive to form a stable crosslinking structure, thereby accelerating the curing process of the adhesive. Experiments show that after using the catalyst PC-8, the curing time of the adhesive can be shortened by more than 20%.

2.3.2 Improve bonding strength

Catalytic PC-8 can not only accelerate curing, but also improve the adhesive strength and durability. By adjusting the amount of catalyst PC-8, the adhesive strength and water resistance of the adhesive can be controlled to meet the needs of different furniture products.

3. Analysis of the advantages of catalyst PC-8

3.1 Improve production efficiency

Catalytic PC-8 can significantly accelerate the process of wood treatment, coating curing and adhesive reaction, thereby shortening production cycles and improving production efficiency. This is of great economic significance for large-scale furniture manufacturing companies.

3.2 Improve product quality

Catalytic PC-8 can improve the durability of woodThe quality of furniture products is significantly improved by the hardness and wear resistance of the coating, as well as the adhesive strength and durability of the adhesive. This plays an important role in improving product competitiveness and market share.

3.3 Reduce production costs

The use of catalyst PC-8 can reduce the time and energy consumption of wood treatment, coating curing and adhesive reaction, thereby reducing production costs. In addition, the environmental performance of the catalyst PC-8 also meets the environmental protection requirements of the modern furniture manufacturing industry, reducing the cost of environmental protection.

3.4 Environmental performance

The main components of the catalyst PC-8 are environmentally friendly materials, which are environmentally friendly and meet the environmental protection requirements of the modern furniture manufacturing industry. It will not produce harmful gases and wastewater during its use, reducing environmental pollution.

IV. Future development trends of catalyst PC-8

4.1 Multifunctional

In the future, the catalyst PC-8 will develop in a multifunctional direction, which can not only accelerate the chemical reaction process, but also have various functions such as anti-corrosion, insect prevention, and waterproofing, further improving its application value in furniture manufacturing.

4.2 Intelligent

With the development of intelligent manufacturing technology, the catalyst PC-8 will develop in the direction of intelligence, and can automatically adjust its chemical properties and reaction speed according to different production environments and process requirements to improve production efficiency and product quality.

4.3 Green and environmentally friendly

In the future, the catalyst PC-8 will pay more attention to green and environmental protection, adopt more environmentally friendly raw materials and production processes to reduce the impact on the environment, and meet the environmental protection requirements of the modern furniture manufacturing industry.

4.4 Customization

With the diversified development of the furniture manufacturing industry, the catalyst PC-8 will develop in the direction of customization, and can customize different chemical formulas and reaction conditions according to different furniture products and production processes to meet the needs of different customers.

V. Conclusion

As a highly efficient and environmentally friendly chemical additive, the catalyst PC-8 has a wide range of application prospects in the furniture manufacturing industry. Its unique chemical properties and versatility make it an important tool for improving furniture manufacturing efficiency, improving product quality and reducing production costs. In the future, with the development of multifunctionalization, intelligence, green and environmental protection and customization, the application of catalyst PC-8 in the furniture manufacturing industry will be more extensive and in-depth, injecting new impetus into the development of the furniture manufacturing industry.

VI. Appendix

6.1 How to use the catalyst PC-8

Application Fields	How to use
Wood Treatment	Spray or soak after dilution
Coating Curing	Add to coating in proportion
Adhesive reaction	Add to the adhesive in proportion

6.2 Catalyst PC-8 precautions

Catalytic PC-8 should be stored in a cool and dry place to avoid direct sunlight.
When using catalyst PC-8, protective gloves and glasses should be worn to avoid direct contact with the skin and eyes.
Catalytic PC-8 should be kept away from fire and heat sources to avoid high temperature environments.
The amount of catalyst PC-8 added should be adjusted according to specific process requirements to avoid excessive use.

6.3 Frequently Asked Questions and Solutions for Catalyst PC-8

Problem	Solution
Catalytic PC-8 failed	Check storage conditions to ensure use within the shelf life
The effect of the catalyst PC-8 is not obvious	Adjust the amount of additions to ensure proportional use
Catalytic PC-8 is incompatible with coatings or adhesives	Replace compatible paint or adhesive

Through the detailed introduction of the above content, I believe that readers have a comprehensive understanding of the new progress of the catalyst PC-8 in the furniture manufacturing industry. The application of catalyst PC-8 not only improves the efficiency and quality of furniture manufacturing, but also reduces production costs, which meets the environmental protection requirements of the modern furniture manufacturing industry. In the future, with the continuous advancement of technology, the application of catalyst PC-8 in the furniture manufacturing industry will be more extensive and in-depth, injecting new impetus into the development of the industry.

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