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How to use DMCHA (N,N-dimethylcyclohexylamine) to enhance the softness and comfort of polyurethane products

3月 12th, 2025 News

Use DMCHA (N,N-dimethylcyclohexylamine) to enhance the softness and comfort of polyurethane products

Introduction

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

1. Basic characteristics and mechanism of DMCHA

1.1 Chemical structure and characteristics of DMCHA

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

Chemical Name Molecular Formula Molecular Weight Appearance Boiling point (?) Density (g/cm³)
N,N-dimethylcyclohexylamine C8H17N 127.23 Colorless transparent liquid 159-161 0.85-0.87

DMCHA has the following characteristics:

  • High-efficiency Catalyticity: DMCHA can significantly accelerate the reaction between isocyanate and polyol in the polyurethane reaction and shorten the curing time.
  • Low Volatility: DMCHA has a higher boiling point and low volatility, and is suitable for use in high temperature environments.
  • Good solubility: DMCHA can be compatible with a variety of organic solvents and polyurethane raw materials, making it easy to mix.

1.2 The mechanism of action of DMCHA in polyurethane

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

  1. Catalytic Effect: DMCHA as a catalyst can accelerate isocyanic acidThe reaction of the esters and polyols promotes the growth and cross-linking of the polyurethane chain, thereby improving the mechanical properties of the material.
  2. Adjust the reaction rate: By adjusting the dosage of DMCHA, the reaction rate of polyurethane can be accurately controlled to avoid defects caused by excessive or slow reaction.
  3. Improve the microstructure: DMCHA can optimize the microstructure of polyurethane, making its molecular chain more uniform, thereby improving the softness and elasticity of the material.

2. Application method of DMCHA in polyurethane products

2.1 Process flow for adding DMCHA

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

  1. Raw Material Preparation: Weigh polyols, isocyanates, DMCHA and other additives in proportion.
  2. Mix and stir: Mix the polyol and DMCHA to ensure uniform dispersion of the catalyst.
  3. Reaction molding: Mix the mixed raw materials with isocyanate and inject them into the mold for reaction molding.
  4. Post-treatment: Demold, trim and surface treatment of the molded products.

2.2 Addition of DMCHA and Effect

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

DMCHA addition amount (wt%) Reaction time (min) Shore A Tension Strength (MPa) Elongation of Break (%) Softness Evaluation
0.1 15 85 25 300 General
0.3 10 75 22 400 Better
0.5 8 65 20 500 Excellent
0.8 6 60 18 550 Excellent

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

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

3.1 Optimized formula design

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

Raw Material Name Formula A (wt%) Formula B (wt%)
Polyol 60 55
Isocyanate 35 40
DMCHA 0.5 0.8
Other additives 4.5 4.2

Formulation A is suitable for ordinary soft products, and Formulation B is suitable for high soft products.

3.2 Control reaction conditions

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

Reaction temperature (?) Reaction time (min) Shore A Softness Evaluation
60 10 70 Better
80 8 65 Excellent
100 6 60 Excellent

3.3 Surface treatment technology

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

Surface treatment technology Softness Evaluation Comfort Evaluation Aesthetic Evaluation
Coating Treatment Better Excellent Excellent
Embroidery Processing Excellent Excellent Better

IV. Application cases of DMCHA in different polyurethane products

4.1 Soft foam

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

Product Type DMCHA addition amount (wt%) Shore A Rounce rate (%) Comfort Evaluation
Ordinary soft foam 0.3 75 60 Better
High soft foam 0.5 65 70 Excellent

4.2 Elastomer

Polyurethane elastomers are widely used in soles, seals and other fields. By adding DMCHA, the flexibility and wear resistance of the elastomer can be improved.

Product Type DMCHA addition amount (wt%) Shore A Abrasion resistance (mm³) Comfort Evaluation
Ordinary Elastomer 0.2 80 50 General
High soft elastic body 0.4 70 40 Excellent

4.3 Coating material

Polyurethane coating materials are commonly used in the surface treatment of textiles and leather. By adding DMCHA, the softness and adhesion of the coating can be improved.

Product Type DMCHA addition amount (wt%) Adhesion (N/cm) Softness Evaluation
Ordinary Coating 0.1 5 General
High soft coating 0.3 6 Excellent

V. Summary and Outlook

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

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

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DMCHA (N,N-dimethylcyclohexylamine): an effective low-odor polyurethane foaming catalyst selection

3月 12th, 2025 News

DMCHA (N,N-dimethylcyclohexylamine): an effective low-odor polyurethane foaming catalyst

Catalog

  1. Introduction
  2. Overview of polyurethane foaming technology
  3. Basic Characteristics of DMCHA
  4. The application of DMCHA in polyurethane foaming
  5. Comparison of DMCHA with other catalysts
  6. DMCHA product parameters
  7. The safety and environmental protection of DMCHA
  8. DMCHA market prospects
  9. Conclusion

1. Introduction

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

2. Overview of polyurethane foaming technology

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

2.1 Gel reaction

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

2.2 Foaming reaction

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

3. Basic characteristics of DMCHA

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

  • Chemical Structure: C8H17N
  • Molecular Weight: 127.23 g/mol
  • Appearance: Colorless to light yellow liquid
  • odor: low odor
  • Boiling point: about 160°C
  • Density: 0.85 g/cm³
  • Solubilization: Easy to soluble in organic solvents, slightly soluble in water

3.1 Low odor characteristics

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

3.2 High-efficiency catalytic performance

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

4. Application of DMCHA in polyurethane foaming

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

4.1 Hard foam

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

4.2 Soft foam

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

4.3 Semi-rigid foam

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

5. Comparison of DMCHA with other catalysts

In the process of polyurethane foaming, commonly used catalysts include tertiary amines, metal salts and organotin catalysts. Here is a comparison of DMCHA with these catalysts:

Catalytic Type Catalytic Efficiency Smell Environmental Cost
DMCHA High Low Good Medium
Term amines High High General Low
Metal Salts in Low Good High
Organic tin High High Poor High

5.1 Catalytic efficiency

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

5.2 Odor

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

5.3 Environmental protection

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

5.4 Cost

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

6. DMCHA product parameters

The following are the detailed product parameters of DMCHA:

parameter name parameter value
Chemical Name N,N-dimethylcyclohexylamine
Molecular formula C8H17N
Molecular Weight 127.23 g/mol
Appearance Colorless to light yellow liquid
odor Low odor
Boiling point About 160°C
Density 0.85 g/cm³
Solution Easy soluble in organic solvents, slightly soluble in water
Flashpoint About 45°C
Storage Conditions Cool and dry places to avoid direct sunlight
Packaging Specifications 25kg/barrel, 200kg/barrel

7. Safety and environmental protection of DMCHA

7.1 Security

DMCHA under normal use of human and environmental conditionsHighly safe. The following are the safe use suggestions for DMCHA:

  • Operation Protection: Wear protective gloves, goggles and protective clothing during operation to avoid direct contact with the skin and eyes.
  • Ventiation Conditions: The operating environment should maintain good ventilation to avoid inhaling steam.
  • Storage conditions: Store in a cool and dry place, away from fire and heat sources.

7.2 Environmental protection

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

8. DMCHA market prospects

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

8.1 Promotion of environmental protection regulations

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

8.2 Diversified demand for polyurethane materials

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

8.3 Technological Innovation

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

9. Conclusion

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

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

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Discussion on the potential of DMCHA (N,N-dimethylcyclohexylamine) in reducing energy consumption in production process

3月 12th, 2025 News

Discussion on the potential of DMCHA (N,N-dimethylcyclohexylamine) in reducing energy consumption in the production process

Catalog

  1. Introduction
  2. The basic properties of DMCHA
  3. Application of DMCHA in industrial production
  4. The potential of DMCHA in reducing energy consumption
  5. Application cases of DMCHA in different industries
  6. Environmental Impact and Sustainability of DMCHA
  7. Conclusion

1. Introduction

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

2. Basic properties of DMCHA

2.1 Chemical structure

The chemical formula of DMCHA is C8H17N and the molecular weight is 127.23 g/mol. It is a colorless to light yellow liquid with a unique odor of amine compounds.

2.2 Physical Properties

Properties value
Boiling point 160-162°C
Melting point -60°C
Density 0.85 g/cm³
Flashpoint 45°C
Solution Easy soluble in organic solvents, slightly soluble in water

2.3 Chemical Properties

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

3. Application of DMCHA in industrial production

3.1 Catalyst

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

3.2 Solvent

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

3.3 Intermediate

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

4. The potential of DMCHA in reducing energy consumption

4.1 Improve reaction efficiency

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

4.2 Reduce the reaction temperature

In some reactions, DMCHA can reduce the temperature required for the reaction, thereby reducing the energy required for heating.

4.3 Reduce by-products

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

4.4 Extend the life of the equipment

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

5. Application cases of DMCHA in different industries

5.1 Polyurethane foam production

Application Effect
Catalyzer Improve the reaction speed and reduce energy consumption
Frothing agent Reduce foaming temperature and reduce heating energy

5.2 Coatings and inks

Application Effect
Solvent Improve solubility and reduce solvent usage
Addant Improve the performance of the coating and reduce the number of coatings

5.3 Drug Synthesis

Application Effect
Intermediate Improve synthesis efficiency and reduce reaction time
Catalyzer Reduce the reaction temperature and reduce heating energy

6. Environmental Impact and Sustainability of DMCHA

6.1 Environmental Impact

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

6.2 Sustainability

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

7. Conclusion

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

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

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