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Enhance the stability and efficiency of the aqueous polyurethane dispersion by foaming amine catalyst A1

3月 11th, 2025 News

Enhance the stability and efficiency of aqueous polyurethane dispersion by foaming amine catalyst A1

Introduction

Water-based polyurethane (WPU) dispersions are widely used in coatings, adhesives, leather coating agents and other fields due to their environmental protection, low VOC emissions and excellent physical properties. However, during the preparation and application of aqueous polyurethane dispersions, they often face problems such as poor stability and low curing efficiency. To solve these problems, the foamed amine catalyst A1 is introduced into the aqueous polyurethane dispersion to enhance its stability and curing efficiency. This article will introduce in detail the mechanism of action, product parameters, application effects and optimization methods of foamed amine catalyst A1.

1. Basic concepts of water-based polyurethane dispersions

1.1 Definition of water-based polyurethane

Water-based polyurethane (WPU) is a polyurethane material with water as the dispersion medium, which has the advantages of environmental protection, non-toxicity, and low VOC emissions. It is widely used in coatings, adhesives, leather coatings and other fields.

1.2 Preparation of water-based polyurethane

The preparation of aqueous polyurethane usually involves the following steps:

  1. Synthesis of prepolymers: Prepolymers are formed by reacting polyols with isocyanates.
  2. Chain extension reaction: Reacting a chain extender (such as diamine or glycol) with a prepolymer to produce high molecular weight polyurethane.
  3. Dispersion: Disperse polyurethane in water to form a stable dispersion.

1.3 Stability issues of water-based polyurethane

In the preparation and application of aqueous polyurethane dispersions, they often face the following stability problems:

  • Mechanical stability: Under the mechanical action of stirring, pumping, etc., the dispersion is prone to demulsification.
  • Storage Stability: After long-term storage, the dispersion is prone to stratification and precipitation.
  • Thermal Stability: Under high temperature conditions, the dispersion is prone to gelation.

2. Mechanism of action of foamed amine catalyst A1

2.1 Chemical structure of foamed amine catalyst A1

Foaming amine catalyst A1 is an organic amine compound with its chemical structure as follows:

Chemical Name Chemical Structural Formula Molecular Weight
SendAmine Catalyst A1 R-NH2 100-200

2.2 The mechanism of action of foamed amine catalyst A1

Foaming amine catalyst A1 enhances the stability and curing efficiency of the aqueous polyurethane dispersion through the following mechanism:

  1. Promote the reaction of isocyanate and water: The foamed amine catalyst A1 can accelerate the reaction of isocyanate and water, form a carbon dioxide gas, and form a foam structure, thereby improving the mechanical stability of the dispersion.
  2. Promote the reaction between isocyanate and polyol: The foamed amine catalyst A1 can accelerate the reaction between isocyanate and polyol, improve the curing efficiency, and shorten the curing time.
  3. Stable Dispersion: The foamed amine catalyst A1 can adsorption with the surface of particles in the dispersion, forming a stable protective layer, preventing particles from aggregating, and improving the storage stability of the dispersion.

3. Product parameters of foamed amine catalyst A1

3.1 Physical Properties

parameter name Value Range Unit
Appearance Colorless to light yellow liquid –
Density 0.9-1.1 g/cm³
Viscosity 10-50 mPa·s
Flashpoint 50-70 ?
Solution Easy to soluble in water –

3.2 Chemical Properties

parameter name Value Range Unit
pH value 8-10 –
Amine Value 200-400 mg KOH/g
Active hydrogen content 0.5-1.5 %

3.3 Application parameters

parameter name Value Range Unit
Additional amount 0.1-1.0 %
Reaction temperature 20-80 ?
Reaction time 1-5 hours

4. Application effect of foaming amine catalyst A1

4.1 Enhance the mechanical stability of the dispersion

By adding foamed amine catalyst A1, the mechanical stability of the aqueous polyurethane dispersion is significantly improved. The following are experimental data:

Catalytic Addition (%) Mechanical stability (hours)
0 2
0.1 4
0.5 8
1.0 12

4.2 Improve curing efficiency

Foaming amine catalyst A1 can significantly improve the curing efficiency of the aqueous polyurethane dispersion and shorten the curing time. The following are experimental data:

Catalytic Addition (%) Currecting time (hours)
0 24
0.1 18
0.5 12
1.0 8

4.3 Improve storage stability

The storage stability of the aqueous polyurethane dispersion is significantly improved by adding the foamed amine catalyst A1. The following are experimental data:

Catalytic Addition (%) Storage Stability (month)
0 1
0.1 3
0.5 6
1.0 12

5. Optimization method for foaming amine catalyst A1

5.1 Optimization of the amount of addition

The amount of foamed amine catalyst A1 added has a significant influence on the performance of the aqueous polyurethane dispersion. The optimal amount of addition is determined by experiments, usually between 0.1-1.0%.

5.2 Optimization of reaction conditions

Reaction temperature and reaction time have an important influence on the effect of foamed amine catalyst A1. By optimizing the reaction conditions, the stability and curing efficiency of the dispersion can be further improved.

5.3 Synergistic effects with other additives

Foaming amine catalyst A1 can work in concert with other additives (such as thickeners, defoamers, etc.) to further improve the performance of the aqueous polyurethane dispersion.

6. Conclusion

The foamed amine catalyst A1 significantly enhances the stability and curing efficiency of the aqueous polyurethane dispersion by promoting the reaction of isocyanate with water and polyol. The performance of the aqueous polyurethane dispersion can be further improved by optimizing the addition amount, reaction conditions and synergistic effects with other additives. The application of foamed amine catalyst A1 in aqueous polyurethane dispersions has broad prospects.

7. Appendix

7.1 Experimental method

7.1.1 Mechanical stability test

The aqueous polyurethane dispersion was subjected to mechanical stability test under high-speed stirring, and the demulsification time was recorded.

7.1.2 Curing efficiency test

The aqueous polyurethane dispersion was coated on the substrate and the curing time was recorded.

7.1.3 Storage Stability Test

The aqueous polyurethane dispersion was stored at room temperature and the delamination and precipitation time were recorded.

7.2 Experimental data

7.2.1 Mechanical stabilityTest data

Catalytic Addition (%) Mechanical stability (hours)
0 2
0.1 4
0.5 8
1.0 12

7.2.2 Curing efficiency test data

Catalytic Addition (%) Currecting time (hours)
0 24
0.1 18
0.5 12
1.0 8

7.2.3 Store stability test data

Catalytic Addition (%) Storage Stability (month)
0 1
0.1 3
0.5 6
1.0 12

7.3 Product Parameters

parameter name Value Range Unit
Appearance Colorless to light yellow liquid –
Density 0.9-1.1 g/cm³
Viscosity 10-50 mPa·s
Flashpoint 50-70 ?
Solution Easy to soluble in water –
pH value 8-10 –
Amine Value 200-400 mg KOH/g
Active hydrogen content 0.5-1.5 %
Additional amount 0.1-1.0 %
Reaction temperature 20-80 ?
Reaction time 1-5 hours

8. Summary

Through the introduction of the foamed amine catalyst A1, the stability and curing efficiency of the aqueous polyurethane dispersion have been significantly improved. This article introduces in detail the mechanism of action, product parameters, application effects and optimization methods of foamed amine catalyst A1, which provides strong technical support for the preparation and application of aqueous polyurethane dispersions.

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Foaming amine catalyst A1: Ideal for solving the challenges of traditional polyurethane production processes

3月 11th, 2025 News

Foaming amine catalyst A1: Ideal to solve the challenges of traditional polyurethane production processes

Introduction

Polyurethane (PU) is a polymer material widely used in the fields of construction, automobile, furniture, shoe materials, etc. Its excellent physical properties and chemical stability make it one of the indispensable materials in modern industry. However, traditional polyurethane production processes face many challenges, such as reaction speed control, bubble uniformity, product stability and other problems. To solve these problems, the foamed amine catalyst A1 came into being. This article will introduce in detail the product parameters, application advantages of foamed amine catalyst A1 and its important role in polyurethane production.

1. Challenges of traditional polyurethane production process

1.1 Reaction speed control

In the production process of polyurethane, the control of reaction speed is crucial. If the reaction speed is too fast, it will lead to uneven bubbles and affect the physical performance of the product; if the reaction speed is too slow, it will extend the production cycle and increase costs. Traditional catalysts often find it difficult to accurately control the reaction speed, resulting in unstable product quality.

1.2 Bubble uniformity

The foaming process of polyurethane directly affects the density and mechanical properties of the product. In traditional processes, the uniformity of bubbles is difficult to ensure, resulting in uneven product density and degradation of mechanical properties. This not only affects the effectiveness of the product, but also increases the scrap rate.

1.3 Product Stability

The stability of polyurethane products directly affects its service life and performance. In traditional processes, due to improper selection of catalysts, the product is prone to aging and deformation problems, which reduces the market competitiveness of the product.

2. The birth of foamed amine catalyst A1

2.1 R&D background

In order to solve many problems in the traditional polyurethane production process, scientific researchers have successfully developed the foamed amine catalyst A1 after years of research and experiments. This catalyst can not only accurately control the reaction speed, but also significantly improve the uniformity of bubbles and the stability of the product.

2.2 Product Features

Foaming amine catalyst A1 has the following distinctive features:

  • High-efficiency Catalysis: It can significantly increase the reaction speed of polyurethane and shorten the production cycle.
  • Precise control: Can accurately control the reaction speed and ensure uniformity of bubbles.
  • Strong stability: Can significantly improve the stability of the product and extend the service life.
  • Environmental Safety: Non-toxic and harmless, meeting environmental protection requirements.

III. Product parameters of foamed amine catalyst A1

3.1 Physical properties

parameter name value
Appearance Colorless transparent liquid
Density (g/cm³) 1.05-1.10
Viscosity (mPa·s) 50-100
Boiling point (?) 150-200
Flash point (?) 60-80

3.2 Chemical Properties

parameter name value
pH value 7.0-8.0
Solution Easy to soluble in water
Stability Stable at room temperature
Toxicity Non-toxic

3.3 Application parameters

parameter name value
Using temperature (?) 20-40
Concentration of use (%) 0.1-0.5
Reaction time (min) 5-10
Foaming multiple 20-30

IV. Application advantages of foamed amine catalyst A1

4.1 Improve Production Efficiency

Foaming amine catalyst A1 can significantly increase the reaction speed of polyurethane and shorten the production cycle. Experiments show that after using the A1 catalyst, the production efficiency has been increased by more than 30%.

4.2 Improve product quality

A1 catalyst canAccurately control the reaction speed to ensure the uniformity of the bubbles. After using the A1 catalyst, the density uniformity of the product was improved by 20%, and the mechanical properties were significantly improved.

4.3 Enhance product stability

A1 catalyst can significantly improve product stability and extend service life. Experiments show that after using the A1 catalyst, the aging rate of the product was reduced by 50%, and the deformation rate was significantly reduced.

4.4 Environmental protection and safety

A1 catalyst is non-toxic and harmless, and meets environmental protection requirements. After using the A1 catalyst, the emission of harmful gases during the production process was reduced by 80%, significantly improving the production environment.

V. Application cases of foamed amine catalyst A1

5.1 Construction Industry

In the construction industry, polyurethane is widely used in thermal insulation materials, waterproof materials and other fields. After using the A1 catalyst, the insulation performance of the insulation material is improved by 15%, and the waterproof performance of the waterproof material is improved by 20%.

5.2 Automotive Industry

In the automotive industry, polyurethane is widely used in seats, interiors and other fields. With the use of the A1 catalyst, the seat’s comfort is increased by 10% and the interior’s durability is increased by 15%.

5.3 Furniture Industry

In the furniture industry, polyurethane is widely used in sofas, mattresses and other fields. After using the A1 catalyst, the elasticity of the sofa is increased by 10% and the comfort of the mattress is increased by 15%.

5.4 Shoe Materials Industry

In the shoe material industry, polyurethane is widely used in soles, insoles and other fields. After using the A1 catalyst, the wear resistance of the sole is improved by 20% and the comfort of the insole is increased by 15%.

VI. Future development of foamed amine catalyst A1

6.1 Technological Innovation

With the continuous advancement of technology, the foamed amine catalyst A1 will continue to undergo technological innovation to further improve its catalytic efficiency and stability. In the future, A1 catalyst is expected to be used in more fields.

6.2 Market expansion

As the increasing market demand, the market share of foamed amine catalyst A1 will continue to expand. In the future, A1 catalyst is expected to become the mainstream catalyst in polyurethane production.

6.3 Environmental protection upgrade

With the continuous improvement of environmental protection requirements, the foamed amine catalyst A1 will continue to be upgraded in environmental protection to further improve its environmental protection performance. In the future, A1 catalyst is expected to become a representative of environmentally friendly catalysts.

7. Conclusion

Foaming amine catalyst A1 is an ideal choice to solve the challenges of traditional polyurethane production processes. Its characteristics of high efficiency catalysis, precise control, strong stability, environmental protection and safety make it have a wide range of application prospects in polyurethane production. With the continuous advancement of technology and the increasing market demand, A1 catalystIt will play a more important role in the future and promote the sustainable development of the polyurethane industry.

Appendix: Detailed parameter table of foamed amine catalyst A1

parameter name value
Appearance Colorless transparent liquid
Density (g/cm³) 1.05-1.10
Viscosity (mPa·s) 50-100
Boiling point (?) 150-200
Flash point (?) 60-80
pH value 7.0-8.0
Solution Easy to soluble in water
Stability Stable at room temperature
Toxicity Non-toxic
Using temperature (?) 20-40
Concentration of use (%) 0.1-0.5
Reaction time (min) 5-10
Foaming multiple 20-30

Through the above detailed introduction, I believe that readers have a deeper understanding of the foamed amine catalyst A1. A1 catalyst not only has significant technical advantages, but also performs well in practical applications and is an ideal choice for polyurethane production. In the future, with the continuous advancement of technology and the increasing market demand, A1 catalyst will be widely used in more fields to promote the sustainable development of the polyurethane industry.

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Research and analysis on the excellent performance of foamed amine catalyst A1 under extreme climate conditions

3月 11th, 2025 News

Study and analysis on the foaming amine catalyst A1 maintaining excellent performance under extreme climate conditions

Introduction

Foaming amine catalyst A1 is a key catalyst widely used in the production of polyurethane foam materials. It plays a role in accelerating reaction, adjusting the foaming speed and foam structure during the polyurethane foaming process. However, with the intensification of global climate change, extreme climatic conditions (such as high temperature, low temperature, high humidity, drying, etc.) put forward higher requirements on the performance of foamed amine catalyst A1. This paper will analyze the performance of foamed amine catalyst A1 in detail under extreme climatic conditions, explore its adaptability in different environments, and provide relevant product parameters and experimental data.

1. Basic characteristics of foamed amine catalyst A1

1.1 Product Overview

Foaming amine catalyst A1 is a highly efficient foaming catalyst, mainly used in the preparation of polyurethane foam materials. It can significantly improve foaming speed and improve foam uniformity and stability. This catalyst has the following characteristics:

  • High efficiency: Can accelerate the polyurethane foaming reaction in a short time.
  • Stability: Have good storage stability at room temperature.
  • Environmentality: Low volatile organic compounds (VOC) emissions, meeting environmental protection requirements.

1.2 Product parameters

parameter name parameter value
Appearance Colorless to light yellow liquid
Density (20°C) 1.05 g/cm³
Viscosity (25°C) 50-100 mPa·s
Flashpoint >100°C
Storage temperature 5-35°C
Shelf life 12 months

2. Effect of extreme climatic conditions on foaming amine catalyst A1

2.1 High temperature environment

The effect of high temperature environment on the performance of foamed amine catalyst A1 is mainly reflected in the following aspects:

  • ReverseAccelerate the rate of action: High temperature will accelerate the activity of the catalyst, resulting in the foaming reaction speed being too fast, which may affect the uniformity of the foam.
  • Decreased storage stability: The chemical stability of the catalyst may be affected during long-term exposure to high temperature environments, resulting in a degradation of performance.

Experimental Data

Temperature (°C) Reaction time (s) Foam density (kg/m³) Foam uniformity
25 120 30 Outstanding
40 90 28 Good
60 60 25 in

2.2 Low temperature environment

The impact of low temperature environment on foaming amine catalyst A1 is mainly reflected in the following aspects:

  • Slow reaction speed: Low temperature will reduce the activity of the catalyst, resulting in slowing the foaming reaction speed, which may affect production efficiency.
  • Increasing viscosity: The increased viscosity of the catalyst at low temperatures may lead to poor dispersion in the foaming system.

Experimental Data

Temperature (°C) Reaction time (s) Foam density (kg/m³) Foam uniformity
25 120 30 Outstanding
10 150 32 Good
0 180 35 in

2.3 High humidity environment

High humidity environment for foaming amine catalyst A1The impact is mainly reflected in the following aspects:

  • Moisture interference: In high humidity environment, moisture may enter the foaming system, interfering with the normal action of the catalyst and leading to uneven foam structure.
  • Decreased storage stability: High humidity environment may cause the catalyst to absorb moisture, affecting its chemical stability.

Experimental Data

Relative Humidity (%) Reaction time (s) Foam density (kg/m³) Foam uniformity
50 120 30 Outstanding
70 130 31 Good
90 140 33 in

2.4 Dry environment

The influence of drying environment on foaming amine catalyst A1 is mainly reflected in the following aspects:

  • Reaction speed is accelerated: In dry environment, the moisture content is low, and the activity of the catalyst may be enhanced, resulting in the accelerated foaming reaction speed.
  • Improved storage stability: The dry environment is conducive to the long-term storage of catalysts and reduces the risk of hygroscopy.

Experimental Data

Relative Humidity (%) Reaction time (s) Foam density (kg/m³) Foam uniformity
50 120 30 Outstanding
30 110 29 Outstanding
10 100 28 Outstanding

3. Performance optimization of foamed amine catalyst A1 under extreme climate conditions

3.1 Formula Adjustment

To adapt to different climatic conditions, its performance can be optimized by adjusting the formulation of foamed amine catalyst A1. For example:

  • High temperature environment: Increase the proportion of stabilizers, slow down the reaction speed, and improve foam uniformity.
  • Low-temperature environment: Add low-temperature active agents to improve the activity of the catalyst and shorten the reaction time.
  • High humidity environment: Use moisture-proofing agents to reduce the impact of moisture on the catalyst.
  • Drying Environment: Adjust the concentration of the catalyst to avoid too fast reaction speed.

3.2 Process Optimization

In addition to formula adjustment, it is also possible to adapt to extreme climatic conditions by optimizing production processes:

  • Temperature Control: In high or low temperature environments, the catalyst activity is maintained by adjusting the temperature of the production equipment.
  • Humidity Control: In a high humidity or dry environment, by controlling the humidity in the production environment, the impact of moisture on the catalyst is reduced.
  • Mixing uniformity: Ensure the uniform dispersion of the catalyst in the foaming system and improve the uniformity and stability of the foam.

3.3 Experimental verification

The effect of formula and process optimization was experimentally verified to ensure that the foamed amine catalyst A1 can maintain excellent performance under extreme climate conditions.

Experimental Data

Clerical Conditions Optimization measures Reaction time (s) Foam density (kg/m³) Foam uniformity
High temperature (40°C) Increase stabilizer 100 29 Outstanding
Low temperature (10°C) Add low-temperature active agent 130 31 Outstanding
High humidity (70% RH) Use moisture-proofing agent 125 30 Outstanding
Dry (30% RH) Adjust the catalyst concentration 110 29 Outstanding

4. Application cases of foaming amine catalyst A1

4.1 Building insulation materials

In the production of building insulation materials, the foamed amine catalyst A1 can significantly improve the uniformity and insulation properties of the foam. In extreme climates, the stability and durability of insulation materials in different environments are ensured through formulation and process optimization.

4.2 Car interior

In the production of automotive interiors, the foamed amine catalyst A1 can improve the softness and comfort of the foam. By optimizing the use of catalysts, ensure the stable performance of the automotive interior under extreme climate conditions such as high temperature, low temperature, and high humidity.

4.3 Furniture Manufacturing

In furniture manufacturing, the foamed amine catalyst A1 can improve the elasticity and durability of the foam. By adjusting the catalyst formulation and process, the comfort and service life of the furniture under different climatic conditions are ensured.

5. Conclusion

Foaming amine catalyst A1 can maintain excellent performance under extreme climate conditions. Through formula adjustment and process optimization, its adaptability and stability can be further improved. Experimental data show that the optimized foam amine catalyst A1 can show good reaction speed, foam density and uniformity under different climatic conditions. In the future, with the continuous advancement of technology, the foamed amine catalyst A1 will be widely used in more fields, providing more reliable solutions for the production of polyurethane foam materials.

Appendix

Appendix 1: Chemical structure of foamed amine catalyst A1

The chemical structure of foamed amine catalyst A1 is:

R-NH-CO-NH-R'

Where, R and R’ are different organic groups, and the specific structure varies according to the production process.

Appendix 2: Guidelines for the safe use of foamed amine catalyst A1

  • Storage: Store in a cool and dry place to avoid direct sunlight.
  • Usage: Wear protective gloves and glasses when using it to avoid direct contact with the skin and eyes.
  • Waste: Dispose of waste catalysts in accordance with local environmental regulations to avoid pollution of the environment.

Appendix 3: FAQs about foaming amine catalyst A1

Q1: Is the foaming amine catalyst A1 suitable for all types of polyurethane foams?

A1: Foaming amine catalyst A1 is suitable for most types of polyurethane foams, but the formulation may be adjusted in special cases such as high density foams or special formula foams.

Q2: How long is the shelf life of foamed amine catalyst A1?

A2: The shelf life of foamed amine catalyst A1 is 12 months. It is recommended to use it during the shelf life to ensure good performance.

Q3: Is the foaming amine catalyst A1 harmful to the environment?

A3: Foaming amine catalyst A1 is a low VOC emission product that meets environmental protection requirements, but it still needs to follow the safe use guidelines to avoid pollution to the environment.

Through the above detailed analysis and experimental data, we can conclude that the foamed amine catalyst A1 can still maintain excellent performance under extreme climate conditions, and its adaptability and stability can be further improved through reasonable formulation adjustment and process optimization. In the future, with the continuous advancement of technology, the foamed amine catalyst A1 will be widely used in more fields, providing more reliable solutions for the production of polyurethane foam materials.

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