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Retardant amine catalyst A300: Meet high-standard polyurethane requirements

admin 3月 9th, 2025 News

Retardant amine catalyst A300: Meet high-standard polyurethane requirements

Introduction

In modern industry, polyurethane materials are widely used in construction, automobiles, furniture, shoe materials, packaging and other fields due to their excellent physical properties and chemical stability. However, in the production process of polyurethane, the selection of catalyst is crucial. It not only affects the reaction rate, but also directly affects the performance of the final product. As a highly efficient and environmentally friendly catalyst, the retardant amine catalyst A300 can meet the needs of high-standard polyurethane production. This article will introduce in detail the characteristics, applications, product parameters and their advantages in polyurethane production.

1. Overview of Retarded Amine Catalyst A300

1.1 What is retarded amine catalyst A300?

The retardant amine catalyst A300 is a highly efficient catalyst designed specifically for polyurethane production. By delaying the reaction start time, it makes the polyurethane material better controllable during the processing process, thereby ensuring the uniformity and stability of the final product. A300 catalyst can not only improve production efficiency, but also significantly improve the physical properties of polyurethane materials, such as hardness, elasticity, wear resistance, etc.

1.2 Working principle of retardant amine catalyst A300

The working principle of the delayed amine catalyst A300 is based on its unique chemical structure, which can maintain low activity at the beginning of the polyurethane reaction, thereby delaying the onset of the reaction. As the reaction progresses, A300 gradually releases activity, ensuring that the reaction proceeds at the appropriate temperature and time. This delay mechanism makes polyurethane materials have better fluidity during processing, reduce the generation of bubbles and defects, and finally obtain high-quality polyurethane products.

2. Product parameters of delayed amine catalyst A300

2.1 Physical Properties

parameter name	Value/Description
Appearance	Colorless to light yellow liquid
Density (20?)	1.02 g/cm³
Viscosity (25?)	50 mPa·s
Flashpoint	120?
Solution	Easy soluble in water, alcohols, and ketones

2.2 Chemical Properties

parameter name	Value/Description
Molecular Weight	200-250 g/mol
pH value (1% aqueous solution)	8.5-9.5
Active ingredient content	?98%
Storage Stability	12 months (below 25?)

2.3 Application parameters

parameter name	Value/Description
Recommended dosage	0.1-0.5%
Applicable temperature range	20-80?
Applicable reaction system	Polyurethane foam, elastomers, coatings

III. Application fields of delayed amine catalyst A300

3.1 Polyurethane foam

Polyurethane foam is one of the main application areas of the retardant amine catalyst A300. By delaying the reaction start time, the A300 allows the foam to have better fluidity during the foaming process, reducing the generation of bubbles and defects. In addition, the A300 can significantly improve the mechanical properties of foams such as hardness, elasticity and wear resistance.

3.1.1 Rigid foam

In the production of rigid polyurethane foam, A300 can effectively control the reaction rate to ensure that the foam expands evenly during the foaming process, and finally obtain high-density and high-strength rigid foam. This foam is widely used in building insulation, refrigeration equipment and other fields.

3.1.2 Soft foam

In the production of soft polyurethane foam, A300 delays the reaction start time, so that the foam has better fluidity during the foaming process, reducing the generation of bubbles and defects. This foam is widely used in furniture, mattresses, car seats and other fields.

3.2 Polyurethane elastomer

Polyurethane elastomers are another important application area. By delaying the reaction start time, the A300 makes the elastomer more controllable during processing, thereby ensuring the uniformity and stability of the final product. In addition, the A300 can significantly improve the mechanical properties of the elastomer, such as hardness, elasticity and wear resistance.

3.2.1 Cast-type elastomer

In the production of cast polyurethane elastomers, A300 can effectively control the reaction rate to ensure that the elastomer is uniformly cured during the casting process, and finally obtain high hardness and high elasticity elastomers. This kind of elastomer is widely used in seals, tires, conveyor belts and other fields.

3.2.2 Thermoplastic elastomer

In the production of thermoplastic polyurethane elastomers, A300 delays the reaction start time, so that the elastomer has better fluidity during processing, reducing the generation of bubbles and defects. This kind of elastic body is widely used in shoe materials, cable sheaths, automotive interiors and other fields.

3.3 Polyurethane coating

Polyurethane coatings are another important application area for the retardant amine catalyst A300. By delaying the reaction start time, the A300 allows the coating to have better fluidity during construction and reduces the generation of bubbles and defects. In addition, the A300 can significantly improve the mechanical properties of the coating, such as hardness, elasticity and wear resistance.

3.3.1 Water-based coatings

In the production of water-based polyurethane coatings, A300 can effectively control the reaction rate to ensure that the coating is uniformly cured during construction, and finally obtain high hardness and high elasticity coatings. This kind of coating is widely used in construction, furniture, automobiles and other fields.

3.3.2 Solvent-based coatings

In the production of solvent-based polyurethane coatings, A300 delays the reaction start time, so that the coating has better fluidity during construction, reducing the generation of bubbles and defects. This coating is widely used in industrial equipment, ships, bridges and other fields.

IV. Advantages of Retarded amine Catalyst A300

4.1 Efficiency

The delayed amine catalyst A300 has a highly efficient catalytic effect, which can significantly increase the reaction rate of polyurethane production, shorten the production cycle, and improve production efficiency.

4.2 Controllability

A300 delays the reaction start time, so that the polyurethane material has better controllability during the processing process, thereby ensuring the uniformity and stability of the final product.

4.3 Environmental protection

A300 is an environmentally friendly catalyst that does not contain harmful substances and meets the environmental protection requirements of modern industry.

4.4 Multifunctionality

A300 is suitable for the production of a variety of polyurethane materials, such as foams, elastomers, coatings, etc., and has a wide range of application prospects.

4.5 Economy

The recommended amount of A300 is low, which can effectively reduce production costs and improve economic benefits.

V. Method of using delayed amine catalyst A300

5.1 Recommended dosage

Retardant amine catalyst A3The recommended dosage of 00 is 0.1-0.5%, and the specific dosage can be adjusted according to actual production needs.

5.2 How to use

Premix: Premix A300 with other raw materials (such as polyols, isocyanates, etc.) to ensure uniform dispersion.
Reaction: Add the premixed raw materials to the reactor, control the reaction temperature between 20-80°C, and carry out the reaction.
Currect: After the reaction is completed, the material is cured to obtain the final product.

5.3 Notes

Storage: A300 should be stored in a cool, dry and well-ventilated place to avoid direct sunlight and high temperatures.
Safety: When using the A300, you should wear appropriate protective equipment, such as gloves, goggles, etc., to avoid direct contact with the skin and eyes.
Abandoned Disposal: Disposable A300 should be treated in accordance with local environmental protection regulations to avoid pollution of the environment.

VI. Market prospects of delayed amine catalyst A300

With the wide application of polyurethane materials in various fields, the demand for efficient and environmentally friendly catalysts is also increasing. With its excellent performance and wide application prospects, the delayed amine catalyst A300 will occupy an important position in the future market. It is expected that the market demand for A300 will continue to grow in the next few years, becoming one of the important catalysts in polyurethane production.

7. Conclusion

As a highly efficient and environmentally friendly catalyst, the delayed amine catalyst A300 can meet the needs of high-standard polyurethane production. By delaying the reaction start time, A300 makes the polyurethane material better controllable during processing, thereby ensuring the uniformity and stability of the final product. In addition, the A300 also has the advantages of high efficiency, controllability, environmental protection, versatility and economy, and is suitable for the production of a variety of polyurethane materials. With the widespread application of polyurethane materials in various fields, the A300 has a broad market prospect.

Through the introduction of this article, I believe that readers have a deeper understanding of the delayed amine catalyst A300. I hope this article can provide valuable reference for polyurethane manufacturers and related practitioners and help the development of the polyurethane industry.

DMCHA’s versatility in the polyurethane industry

admin 3月 9th, 2025 News

DMCHA’s versatility manifestation in the polyurethane industry

Introduction

Polyurethane (PU) is a multifunctional polymer material widely used in the fields of construction, automobile, furniture, shoe materials, packaging, etc. Its excellent physical properties, chemical stability and processing properties make it one of the indispensable materials in modern industry. In the production process of polyurethane, the choice of catalyst is crucial, which not only affects the reaction rate, but also directly affects the performance of the final product. N,N-dimethylcyclohexylamine (DMCHA) is a highly efficient catalyst that demonstrates its versatility in the polyurethane industry. This article will discuss in detail the application of DMCHA in the polyurethane industry, product parameters and its versatility.

1. Basic properties of DMCHA

1.1 Chemical structure

The chemical name of DMCHA is N,N-dimethylcyclohexylamine, and its molecular formula is C8H17N and its molecular weight is 127.23 g/mol. Its chemical structure is as follows:

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

1.2 Physical Properties

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

Properties	value
Boiling point (?)	160-162
Density (g/cm³)	0.85-0.87
Flash point (?)	45
Solution	Easy soluble in water, alcohols, and ethers
Vapor pressure (mmHg, 20?)	1.2

1.3 Chemical Properties

DMCHA is a strong basic organic amine with good nucleophilicity and catalytic activity. It can react with isocyanate to form polyurethane precursors such as urethane and urea. In addition, DMCHA also has good thermal stability and chemical stability, and can maintain its catalytic activity under high temperatures and strong acid and alkali environments.

2. Application of DMCHA in the polyurethane industry

2.1 Catalyst

DMCHA is mainly used as a catalyst in the polyurethane industry, especially in the production of rigid polyurethane foams (Rigid Polyurethane Foam). Its catalytic effect is mainly reflected in the following aspects:

2.1.1 Reaction of isocyanate and polyol

In the production process of polyurethane, the reaction of isocyanate and polyol is a key step. DMCHA can accelerate this reaction, shorten the reaction time and improve production efficiency. The catalytic mechanism is as follows:

R-NCO + R'-OH ? R-NH-COO-R'

2.1.2 Reaction of isocyanate and water

In the production of rigid polyurethane foams, water is often used as a foaming agent. DMCHA can catalyze the reaction of isocyanate with water to form carbon dioxide gas, thereby achieving foaming. The catalytic mechanism is as follows:

R-NCO + H2O ? R-NH2 + CO2

2.1.3 Autopolymerization of isocyanate

DMCHA can also catalyze the self-polymerization reaction of isocyanate to form a polyurea structure, thereby improving the mechanical strength and heat resistance of polyurethane materials. The catalytic mechanism is as follows:

R-NCO + R-NCO ? R-NH-CO-NH-R

2.2 Foaming agent

DMCHA can be used not only as a catalyst, but also as a foaming agent. In the production of rigid polyurethane foam, DMCHA can react with water to form carbon dioxide gas, thereby achieving foaming. The foaming effect is shown in the table below:

Frothing agent type	Foaming effect	Applicable scenarios
DMCHA	High	Rough Foam
Water	in	Soft foam
Physical foaming agent	Low	Special Foam

2.3 Stabilizer

DMCHA also has a good stabilizing agent function, which can improve the chemical stability and thermal stability of polyurethane materials. In high temperature environments,DMCHA can inhibit the decomposition of polyurethane materials and extend its service life. Its stable effect is shown in the following table:

Stabilizer Type	Thermal Stability	Chemical Stability
DMCHA	High	High
Organic Tin	in	in
Organic Lead	Low	Low

2.4 Plasticizer

DMCHA also has a certain plasticizing effect, which can improve the flexibility and processing performance of polyurethane materials. In the production of soft polyurethane foam, DMCHA can improve the elasticity and comfort of the material. The plasticizing effect is shown in the following table:

Plasticizer Type	Flexibility	Processing Performance
DMCHA	High	High
Phithalate	in	in
Phosate	Low	Low

III. Product parameters of DMCHA

3.1 Industrial DMCHA

Industrial grade DMCHA is mainly used in catalysts and foaming agents in the polyurethane industry. Its product parameters are shown in the following table:

parameter name	value
Purity (%)	?99.0
Moisture (%)	?0.1
Acne value (mg KOH/g)	?0.1
Color (APHA)	?50
Density (g/cm³)	0.85-0.87
Boiling point (?)	160-162
Flash point (?)	45

3.2 Pharmaceutical-grade DMCHA

Pharmaceutical-grade DMCHA is mainly used in the synthesis of pharmaceutical intermediates. Its product parameters are shown in the following table:

parameter name	value
Purity (%)	?99.5
Moisture (%)	?0.05
Acne value (mg KOH/g)	?0.05
Color (APHA)	?20
Density (g/cm³)	0.85-0.87
Boiling point (?)	160-162
Flash point (?)	45

3.3 Electronic grade DMCHA

Electronic grade DMCHA is mainly used in the synthesis of electronic materials. Its product parameters are shown in the following table:

parameter name	value
Purity (%)	?99.9
Moisture (%)	?0.01
Acne value (mg KOH/g)	?0.01
Color (APHA)	?10
Density (g/cm³)	0.85-0.87
Boiling point (?)	160-162
Flash point (?)	45

IV. The versatility of DMCHA

4.1 High-efficiency Catalysis

DMCHA, as a highly efficient catalyst, can significantly increase the reaction rate of polyurethane production, shorten the production cycle, and reduce production costs. Its efficient catalytic performance is shown in the following table:

Catalytic Type	Reaction rate	Production cycle	Cost
DMCHA	High	Short	Low
Organic Tin	in	in	in
Organic Lead	Low	Long	High

4.2 Multifunctional application

DMCHA can be used not only as a catalyst, but also as a foaming agent, a stabilizer and a plasticizer, and has versatility. Its multifunctional application is shown in the following table:

Function Type	Application Scenario	Effect
Catalyzer	Rough Foam	High
Frothing agent	Rough Foam	High
Stabilizer	High temperature environment	High
Plasticizer	Soft foam	High

4.3 Environmental performance

DMCHA has good environmental performance, and its low toxicity and low volatility make it an ideal choice for environmentally friendly catalysts. Its environmental performance is shown in the following table:

Environmental Indicators	DMCHA	Organic Tin	Organic Lead
Toxicity	Low	In	High
Volatility	Low	in	High
Biodegradability	High	in	Low

4.4 Economy

DMCHA has low production costs, and its efficient catalytic performance can significantly reduce the overall cost of polyurethane production, and has high economicality. Its economicality is shown in the following table:

Economic Indicators	DMCHA	Organic Tin	Organic Lead
Production Cost	Low	in	High
Cost of use	Low	in	High
Comprehensive Cost	Low	in	High

V. Future development of DMCHA

5.1 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, the research and development direction of DMCHA will mainly focus on improving its catalytic efficiency, reducing its toxicity and volatile nature. The research and development of new catalysts will further improve the efficiency and environmental performance of polyurethane production.

5.2 Expansion of multi-functional applications

The versatility of DMCHA makes its application prospects in the polyurethane industry. In the future, the application of DMCHA will not only be limited to catalysts and foaming agents, but will also be expanded to stabilizers, plasticizers and other fields, further improving the performance and application range of polyurethane materials.

5.3 Promotion of environmentally friendly catalysts

With the continuous improvement of environmental awareness, the promotion of environmentally friendly catalysts will become an important direction for the future development of the polyurethane industry. As a low toxicity and low volatile environmentally friendly catalyst, DMCHA will be widely used and promoted in the future.

Conclusion

DMCHA, as a highly efficient catalyst, demonstrates its versatility in the polyurethane industry. Its efficient catalytic performance, multifunctional application, environmental protection performance and economy make it one of the indispensable materials in the polyurethane industry. In the future, with new modelsWith the development of catalysts and the expansion of multifunctional applications, DMCHA will play a more important role in the polyurethane industry and promote the sustainable development of the polyurethane industry.

DMCHA: The preferred catalyst in polyurethane foam production

admin 3月 9th, 2025 News

DMCHA: The preferred catalyst in polyurethane foam production

Introduction

Polyurethane foam is a polymer material widely used in construction, furniture, automobiles, packaging and other fields. Its excellent physical properties and chemical stability make it one of the indispensable materials in modern industry. In the production process of polyurethane foam, the choice of catalyst is crucial, which not only affects the reaction rate, but also directly affects the performance of the final product. As a highly efficient catalyst, DMCHA (N,N-dimethylcyclohexylamine) has become the preferred catalyst in the production of polyurethane foam due to its excellent catalytic properties and wide application range.

1. Basic properties 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 amine odor. The molecular structure of DMCHA contains one cyclohexane ring and two methyl substituted amino groups, which confers good solubility and reactivity.

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

1.3 Chemical Properties

DMCHA is a strong basic compound with good nucleophilicity and reactivity. It can react with isocyanate (NCO) groups to form carbamates, thereby promoting the formation of polyurethane foam. In addition, DMCHA also has good thermal stability and chemical stability, and can maintain its catalytic activity under high temperatures and strong acid and alkali environments.

2. Application of DMCHA in the production of polyurethane foam

2.1 Catalytic mechanism

DMCHA is mainly used as a foaming catalyst in the production process of polyurethane foam. The catalytic mechanism is as follows:

Reaction of isocyanate and water: DMCHA can catalyze the reaction of isocyanate and water to form carbon dioxideand amine. Carbon dioxide acts as a foaming agent to expand the polyurethane foam and form a porous structure.

[
R-NCO + H_2O xrightarrow{DMCHA} R-NH_2 + CO_2
]
Reaction of isocyanate and polyol: DMCHA can also catalyze the reaction of isocyanate and polyol to form carbamate, forming the backbone structure of polyurethane.

[
R-NCO + R’-OH xrightarrow{DMCHA} R-NH-COO-R’
]

2.2 Application Advantages

High-efficiency Catalysis: DMCHA has high catalytic activity, can significantly increase the reaction rate and shorten the production cycle.
Good foaming effect: DMCHA can catalyze the foaming reaction evenly, making the foam structure uniform and the pore size distribution reasonable.
Excellent physical properties: Polyurethane foams using DMCHA as catalyst have high mechanical strength and good elasticity.
Wide application range: DMCHA is suitable for a variety of types of polyurethane foams, including soft foams, rigid foams and semi-rigid foams.

2.3 Application Example

2.3.1 Soft polyurethane foam

Soft polyurethane foam is widely used in furniture, mattresses, car seats and other fields. As a foaming catalyst, DMCHA can make the foam have good elasticity and comfort.

parameters	value
Density	20-40 kg/m³
Tension Strength	80-120 kPa
Elongation	150-250%
Rounce rate	40-60%

2.3.2 Rigid polyurethane foam

Rough polyurethane foam is mainly used in the fields of building insulation, refrigeration equipment, etc. DMCHA can make the foam have high mechanical strength and good thermal insulation properties.

parameters	value
Density	30-50 kg/m³
Compression Strength	150-250 kPa
Thermal conductivity	0.020-0.025 W/m·K
Water absorption	<2%

2.3.3 Semi-rigid polyurethane foam

Semi-rigid polyurethane foam is often used in automotive interiors, packaging materials and other fields. DMCHA can make foam have good cushioning and energy absorption properties.

parameters	value
Density	50-80 kg/m³
Compression Strength	100-200 kPa
Rounce rate	30-50%
Energy absorption performance	Excellent

I. Comparison between DMCHA and other catalysts

3.1 Commonly used catalysts

In the production of polyurethane foam, commonly used catalysts include tertiary amine catalysts, metal catalysts, and organotin catalysts. Here are some comparisons of several common catalysts:

Catalytic Type	Pros	Disadvantages
Term amine catalysts	High catalytic activity and good foaming effect	The smell is strong and it is irritating to the skin
Metal Catalyst	High catalytic activity and fast reaction rate	The price is high and has a great impact on the environment
Organotin Catalyst	High catalytic activity and fast reaction rate	More toxic and harmful to the environment and the human body
DMCHA	High catalytic activity, good foaming effect, environmentally friendly	Relatively high price

3.2 Advantages of DMCHA

Environmentality: DMCHA has low toxicity, less harmful to the environment and the human body, and meets the environmental protection requirements of modern industry.
High efficiency: DMCHA has high catalytic activity, which can significantly increase the reaction rate and shorten the production cycle.
Veriofunction: DMCHA can not only catalyze foaming reactions, but also catalyze gel reactions, making polyurethane foam have good physical properties.

IV. DMCHA production process

4.1 Raw material preparation

DMCHA production raw materials mainly include cyclohexylamine and formaldehyde. Cyclohexylamine is a common organic amine, and formaldehyde is a commonly used aldehyde compound.

4.2 Reaction process

The production process of DMCHA mainly includes the following steps:

Reaction of cyclohexylamine and formaldehyde: Cyclohexylamine and formaldehyde react under acidic conditions to form N-methylcyclohexylamine.

[
C6H{11}NH_2 + CH_2O rightarrow C6H{11}NHCH_3 + H_2O
]
Reaction of N-methylcyclohexylamine and formaldehyde: N-methylcyclohexylamine and formaldehyde further react to form DMCHA.

[
C6H{11}NHCH_3 + CH_2O rightarrow C6H{11}N(CH_3)_2 + H_2O
]

4.3 Product Refining

After the reaction is completed, DMCHA is purified by distillation, extraction and other processes to obtain high-purity DMCHA products.

V. Market prospects of DMCHA

5.1 Market demand

With the wide application of polyurethane foam in various fields, the demand for efficient catalysts is increasing. As an efficient and environmentally friendly catalyst, DMCHA has market demandContinuous growth.

5.2 Development trends

Environmental Catalyst: With the increasing strictness of environmental protection regulations, environmentally friendly catalysts will become the mainstream in the market. DMCHA has broad market prospects due to its low toxicity and environmental protection.
High-performance catalysts: With the continuous expansion of the application field of polyurethane foam, the requirements for catalyst performance are becoming increasingly high. DMCHA will become the first choice for high-performance catalysts due to its high efficiency and versatility.

5.3 Market Challenges

Price Competition: DMCHA has relatively high production costs and faces the challenges of price competition.
Technical barriers: DMCHA’s production process is relatively complex and the technical barriers are high, and new entrants face greater technical challenges.

VI. Conclusion

DMCHA is a highly efficient and environmentally friendly catalyst and has a wide range of application prospects in the production of polyurethane foam. Its excellent catalytic properties and versatility make it a preferred catalyst in polyurethane foam production. With the increasing strict environmental regulations and the continuous expansion of the application field of polyurethane foam, the market demand for DMCHA will continue to grow. However, DMCHA has high production costs and large technical barriers. Enterprises need to continue to work hard in technological innovation and cost control to cope with market challenges and seize development opportunities.

Appendix: DMCHA product parameter table

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
Catalytic Activity	High
Environmental	Low toxicity, environmentally friendly
Scope of application	Soft, hard, semi-rigid polyurethane foam

Through the above content, we can fully understand the importance and application advantages of DMCHA in the production of polyurethane foam. I hope this article can provide valuable reference for technicians and decision makers in relevant industries.

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