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Retarded amine catalyst A400: Optimizing the mechanical properties of polyurethane cast parts

admin 3月 11th, 2025 News

Retardant amine catalyst A400: Optimizing the mechanical properties of polyurethane castable parts

Introduction

Polyurethane (PU) materials are widely used in automobiles, construction, electronics, medical and other fields due to their excellent mechanical properties, wear resistance, chemical resistance and processability. However, the performance of polyurethane products depends largely on their processing technology and formulation design, especially the choice of catalyst. As a highly efficient catalyst, the retardant amine catalyst A400 can significantly optimize the mechanical properties of polyurethane casting parts. This article will introduce in detail the characteristics, applications of the retardant amine catalyst A400 and its optimization effects in polyurethane castings.

1. Overview of Retarded Amine Catalyst A400

1.1 Product Introduction

The retardant amine catalyst A400 is a catalyst specially designed for polyurethane materials, with the characteristics of delayed reaction and efficient catalysis. It can maintain low activity at the beginning of the polyurethane reaction and avoid premature gelation, thus ensuring good fluidity of the material during the pouring process. As the reaction progresses, the catalytic activity of A400 gradually increases, and eventually achieves rapid curing.

1.2 Product parameters

parameter name	parameter value
Appearance	Colorless to light yellow liquid
Density (25°C)	1.05 g/cm³
Viscosity (25°C)	50 mPa·s
Flashpoint	120°C
Solution	Easy soluble in water and alcohols
Recommended dosage	0.1-0.5%

1.3 Product Advantages

Delayed reaction: A400 has low activity in the early stage of the reaction, ensuring that the material has good fluidity during the casting process.
High-efficiency Catalysis: As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing.
Good stability: The A400 is highly stable during storage and use and is not easy to decompose.
Environmentality: A400 is free of heavy metals and harmful substances, and meets environmental protection requirements.

2. Mechanical properties of polyurethane castable parts

2.1 The importance of mechanical properties

The mechanical properties of polyurethane casting parts directly affect their performance in practical applications. Mechanical properties include tensile strength, elongation at break, tear strength, hardness, wear resistance, etc. These performance indicators determine the service life and reliability of the material in different environments.

2.2 Factors that affect mechanical properties

Formula Design: The formula design of polyurethane materials directly affects its mechanical properties. Choosing the appropriate polyols, isocyanates, catalysts and additives is key.
Processing Technology: Process parameters such as casting temperature, pressure, and time have a significant impact on the mechanical properties of the material.
Catalytic Selection: The choice of catalyst not only affects the reaction rate, but also affects the microstructure and mechanical properties of the material.

3. Application of retarded amine catalyst A400 in polyurethane castable parts

3.1 Application Areas

Automotive Industry: Used to manufacture car seats, instrument panels, steering wheels and other components.
Construction Industry: Used to manufacture insulation materials, sealants, waterproof coatings, etc.
Electronics Industry: Packaging materials used to manufacture electronic components.
Medical Industry: used to manufacture medical devices, prosthetics, etc.

3.2 Application Cases

3.2.1 Car seat

In the manufacturing process of car seats, the use of the delay amine catalyst A400 can significantly improve the comfort and durability of the seat. The delayed reaction characteristics of the A400 ensure that the material has good fluidity during the casting process and can fully fill every corner of the mold. As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing, ensuring that the mechanical properties of the seat meet the design requirements.

3.2.2 Building insulation materials

In the manufacturing process of building insulation materials, the use of retardant amine catalyst A400 can improve the insulation performance and durability of the material. The delayed reaction characteristics of the A400 ensure that the material has good fluidity during the casting process and can fully fill every corner of the mold. As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing, ensuring that the mechanical properties of the material meet the design requirements.

4. Optimization of mechanical properties of retardant amine catalyst A400 on polyurethane castables

4.1 Tensile strength

Tenable strength is a measure of the ability of a material to resist tensile failure. The use of the retardant amine catalyst A400 can significantly increase the tensile strength of the polyurethane casting. The delayed reaction characteristics of the A400 ensure that the material has good fluidity during the casting process and can fully fill every corner of the mold. As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing, ensuring that the tensile strength of the material meets the design requirements.

4.2 Elongation of break

Elongation of break is a measure of the large amount of deformation a material can withstand before breaking. The use of the retardant amine catalyst A400 can significantly increase the elongation of the break of the polyurethane cast members. The delayed reaction characteristics of the A400 ensure that the material has good fluidity during the casting process and can fully fill every corner of the mold. As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing, ensuring that the material’s elongation of break meets the design requirements.

4.3 Tear strength

Tear strength is a measure of the ability of a material to resist tear damage. The use of the retardant amine catalyst A400 can significantly increase the tear strength of the polyurethane casting. The delayed reaction characteristics of the A400 ensure that the material has good fluidity during the casting process and can fully fill every corner of the mold. As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing, ensuring that the tear strength of the material meets the design requirements.

4.4 Hardness

Hardness is a measure of the ability of a material to resist local deformation. The use of the retardant amine catalyst A400 can significantly increase the hardness of the polyurethane casting. The delayed reaction characteristics of the A400 ensure that the material has good fluidity during the casting process and can fully fill every corner of the mold. As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing, ensuring that the hardness of the material meets the design requirements.

4.5 Wear resistance

Abrasion resistance is a measure of the ability of a material to resist wear. The use of the retardant amine catalyst A400 can significantly improve the wear resistance of the polyurethane cast members. The delayed reaction characteristics of the A400 ensure that the material has good fluidity during the casting process and can fully fill every corner of the mold. As the reaction progresses, the catalytic activity of A400 gradually increases, achieving rapid curing, ensuring that the material’s wear resistance meets the design requirements.

5. Recommendations for the use of delayed amine catalyst A400

5.1 Recommended dosage

The recommended amount of retardant amine catalyst A400 is 0.1-0.5%. The specific dosage should be adjusted according to the actual formula and process conditions.

5.2 Precautions for use

Storage Conditions: The A400 should be stored in a cool, dry and well-ventilated place to avoid direct sunlight and high temperatures.
Using Environment: When using A400, you should ensure that the ambient temperature is between 15-30°C and the humidity is between 50-70%.
Safety Protection: When using the A400, you should wear protective gloves, goggles and protective clothing to avoid direct contact with the skin and eyes.

6. Conclusion

As a highly efficient catalyst, the retardant amine catalyst A400 can significantly optimize the mechanical properties of the polyurethane casting parts. Its delayed reaction and efficient catalytic properties ensure that the material has good fluidity during the casting process and achieves rapid curing. By rationally using A400, the tensile strength, elongation of break, tear strength, hardness and wear resistance of polyurethane castables can be significantly improved, thereby meeting the needs of different application fields.

Appendix

Appendix 1: Comparison of delayed amine catalyst A400 and other catalysts

Catalytic Type	Delayed Reaction Characteristics	Catalytic Efficiency	Stability	Environmental
Retardant amine catalyst A400	Excellent	High	OK	OK
Traditional amine catalyst	General	in	General	General
Organotin Catalyst	None	High	Poor	Poor

Appendix 2: Recommended dosage of delayed amine catalyst A400 in different application fields

Application Fields	Recommended dosage (%)
Auto Industry	0.2-0.4
Construction Industry	0.1-0.3
Electronics Industry	0.3-0.5
Medical Industry	0.2-0.4

Appendix 3: Optimization effect of delayed amine catalyst A400 on the mechanical properties of polyurethane castables

Mechanical Performance Indicators	Optimization effect (%)
Tension Strength	15-20
Elongation of Break	10-15
Tear Strength	20-25
Hardness	10-15
Abrasion resistance	15-20

Through the above detailed analysis and introduction, I believe that readers have a deeper understanding of the application of delayed amine catalyst A400 in optimizing the mechanical properties of polyurethane castables. I hope this article can provide valuable reference and guidance to practitioners in related fields.

Retarded amine catalyst A400: Improve consistency of polyurethane products

admin 3月 11th, 2025 News

Retardant amine catalyst A400: Improve consistency of polyurethane products

Introduction

Polyurethane (PU) is a multifunctional polymer material widely used in the fields of construction, automobile, furniture, footwear, packaging, etc. Its excellent physical properties, chemical stability and processing flexibility make it one of the indispensable materials in modern industry. However, how to ensure the consistency and stability of the product has always been one of the challenges faced by manufacturers during the production process of polyurethane products. As a highly efficient catalyst, the delayed amine catalyst A400 can significantly improve the consistency of polyurethane products. This article will introduce its working principle, product parameters, application scenarios and advantages in detail.

1. Working principle of delayed amine catalyst A400

1.1 Basic principles of polyurethane reaction

The formation of polyurethane is mainly dependent on the reaction between isocyanate (NCO) and polyol (OH). This reaction is usually divided into two stages:

Prepolymer formation stage: Isocyanate reacts with polyol to form prepolymers.
Crosslinking curing stage: The prepolymer further reacts to form a three-dimensional network structure, and finally cures and molds.

1.2 Function of catalyst

The catalyst plays a role in accelerating the reaction rate in the polyurethane reaction. Although traditional amine catalysts can effectively accelerate the reaction, they often lead to excessive reactions and are difficult to control, which affects product consistency. Through a special chemical structure design, the delayed amine catalyst A400 can maintain low activity at the beginning of the reaction and gradually release activity as the reaction progresses, thereby achieving precise control of the reaction rate.

1.3 Retardation mechanism of delaying amine catalyst A400

The delay mechanism of the delay amine catalyst A400 depends mainly on the protective groups in its molecular structure. These protective groups can shield the active center of the catalyst at the beginning of the reaction. As the reaction progresses, the protective groups gradually decompose and release the active center, thereby achieving precise control of the reaction rate.

2. Product parameters of delayed amine catalyst A400

2.1 Physical Properties

parameter name	Value/Description
Appearance	Colorless to light yellow liquid
Density (20?)	0.95-1.05 g/cm³
Viscosity (25?)	50-100 mPa·s
Flashpoint	>100?
Solution	Easy soluble in water, alcohols, and ketone solvents

2.2 Chemical Properties

parameter name	Value/Description
Active Ingredients	Retarding amine compounds
Active temperature range	50-120?
Delay time	5-30 minutes (depending on temperature)
Storage Stability	12 months (below 25?)

2.3 Recommendations for use

parameter name	Suggested Values/Description
Additional amount	0.1-1.0% (based on polyols)
Mixed Method	Premix with polyols
Applicable System	Polyether type and polyester type polyol system

III. Application scenarios of delayed amine catalyst A400

3.1 Construction Industry

In the construction industry, polyurethane foam is widely used in insulation materials, sealing materials and waterproof materials. The delayed amine catalyst A400 can effectively control the foaming and curing process, ensure the uniformity and stability of the foam, thereby improving thermal insulation performance and durability.

3.2 Automotive Industry

Automotive interior parts, seats, instrument panels and other components are usually made of polyurethane materials. The delay amine catalyst A400 ensures that these components have consistent physical properties and appearance quality during production, meeting the automotive industry’s requirements for high precision and consistency.

3.3 Furniture Industry

Polyurethane foam is used in the furniture industry to manufacture soft furniture such as sofas and mattresses. Retarded amine catalyst A400 ensures uniform foaming and curing of foam, improving furniture comfort and durabilitysex.

3.4 Footwear Industry

Polyurethane materials are used in the footwear industry to manufacture soles, insoles and other components. The delayed amine catalyst A400 ensures that these components have consistent elasticity and wear resistance during production, improving the comfort and service life of the footwear.

3.5 Packaging Industry

Polyurethane foam is used in the packaging industry to manufacture buffer materials, protective materials, etc. The retardant amine catalyst A400 can ensure uniformity and stability of foam, and improve the protective performance and durability of packaging materials.

IV. Advantages of delayed amine catalyst A400

4.1 Improve product consistency

The delayed amine catalyst A400 ensures that the polyurethane products have consistent physical properties and appearance quality during the production process by precisely controlling the reaction rate, reducing product defects and scrap rates.

4.2 Improve production efficiency

The delayed amine catalyst A400 can shorten the production cycle and improve production efficiency. Its delay mechanism makes the reaction process more controllable and reduces waiting time and adjustment time in production.

4.3 Reduce production costs

By reducing product defects and scrap rates, the delayed amine catalyst A400 can effectively reduce production costs. In addition, its efficient catalytic performance can also reduce the amount of catalyst used and further reduce production costs.

4.4 Environmental performance

The delayed amine catalyst A400 does not contain harmful substances and meets environmental protection requirements. Its efficient catalytic performance can also reduce energy consumption and reduce carbon emissions during production.

4.5 Wide applicability

The delayed amine catalyst A400 is suitable for a variety of polyurethane systems, including polyether and polyester polyol systems, and can meet the needs of different industries and application scenarios.

V. How to use the delayed amine catalyst A400

5.1 Adding quantity control

The amount of the retardant amine catalyst A400 is usually 0.1-1.0% by weight of the polyol. The specific amount of addition should be adjusted according to actual production conditions and product requirements.

5.2 Mixed method

The retardant amine catalyst A400 should be premixed with the polyol to ensure that the catalyst is evenly dispersed in the polyol. Fierce stirring should be avoided during mixing to prevent the catalyst from releasing its activity prematurely.

5.3 Temperature control

The active temperature range of the retardant amine catalyst A400 is 50-120°C. In actual production, the reaction temperature should be reasonably controlled according to product requirements and production conditions to ensure that the catalyst delay mechanism can fully play its role.

5.4 Storage and Transport

The delayed amine catalyst A400 should be stored in a cool, dry and well-ventilated place.Avoid direct sunlight and high temperatures. Severe vibrations and collisions should be avoided during transportation to prevent catalyst leakage or deterioration.

VI. Case analysis of delayed amine catalyst A400

6.1 Construction insulation material production

When a certain building insulation material manufacturer uses traditional amine catalysts, it often encounters problems such as uneven foam and incomplete curing, resulting in a low product pass rate. After the introduction of the delayed amine catalyst A400, by precisely controlling the reaction rate, the uniformity and curing effect of the foam are significantly improved, the product pass rate is increased by 20%, and the production cost is reduced by 15%.

6.2 Production of automotive interior parts

When a certain automobile interior parts manufacturer uses traditional amine catalysts, the reaction rate is too fast, resulting in bubbles and defects on the surface of the product, affecting the product appearance quality. After the introduction of the delayed amine catalyst A400, the reaction rate is effectively controlled, the product surface is smooth and defect-free, the appearance quality is significantly improved, and customer satisfaction is greatly improved.

6.3 Furniture foam production

When a furniture foam manufacturer uses traditional amine catalysts, the reaction rate is difficult to control, resulting in inconsistent elasticity and durability of the foam, which affects the comfort and service life of the furniture. After the introduction of the delayed amine catalyst A400, the elasticity and durability of the foam have been significantly improved, the comfort and service life of the furniture have been greatly improved, and the market competitiveness has been significantly enhanced.

7. Retard the future development of amine catalyst A400

7.1 Technological Innovation

With the continuous development of the polyurethane industry, the requirements for catalysts are becoming higher and higher. In the future, the delayed amine catalyst A400 will continue to carry out technological innovation, optimize molecular structure, improve catalytic efficiency and delay performance, and meet the needs of more application scenarios.

7.2 Environmental Protection Requirements

As the increasingly stringent environmental regulations, the demand for environmentally friendly catalysts in the polyurethane industry continues to increase. In the future, the delayed amine catalyst A400 will continue to optimize the formulation, reduce the use of harmful substances, improve environmental performance, and meet the requirements of environmental protection regulations.

7.3 Market expansion

With the continuous expansion of the application field of polyurethane, the market demand for delayed amine catalyst A400 will also increase. In the future, the delayed amine catalyst A400 will continue to expand its market and enter more emerging application fields, such as new energy, electronics, medical care, etc., to meet the needs of different industries.

Conclusion

As a highly efficient catalyst, the delayed amine catalyst A400 can significantly improve the consistency of polyurethane products and is widely used in the construction, automobile, furniture, footwear, packaging and other industries. Its unique delay mechanism, excellent product parameters and a wide range of application scenarios make it one of the indispensable catalysts in polyurethane production. In the future, with the continuous innovation of technology and the increasing market demand, delayed amine catalystsThe A400 will continue to leverage its advantages and make greater contributions to the development of the polyurethane industry.

Application of Retarded amine Catalyst A400 in High Performance Sound Insulation Materials

admin 3月 11th, 2025 News

Application of retarded amine catalyst A400 in high-performance sound insulation materials

Introduction

With the acceleration of urbanization and the improvement of people’s requirements for quality of life, sound insulation materials are becoming more and more widely used in construction, transportation, industry and other fields. High-performance sound insulation materials not only need excellent sound insulation performance, but also have good durability, environmental protection and construction convenience. As a highly efficient catalyst, the retardant amine catalyst A400 has gradually attracted attention in its application in high-performance sound insulation materials. This article will introduce in detail the characteristics of the delay amine catalyst A400, its application in high-performance sound insulation materials and its advantages, and display relevant product parameters through tables to help readers better understand its application value.

1. Overview of Retarded Amine Catalyst A400

1.1 Definition of Retarded Amine Catalyst A400

Retardant amine catalyst A400 is a highly efficient organic amine catalyst, mainly used in the synthesis of polyurethane materials. By delaying the reaction time, it makes the polyurethane material better operability and controllability during the construction process, thereby improving the performance of the final product.

1.2 Characteristics of Retarded amine Catalyst A400

The retardant amine catalyst A400 has the following characteristics:

High-efficiency catalysis: It can significantly accelerate the reaction speed of polyurethane materials and improve production efficiency.
Delayed reaction: By delaying the reaction time, the material has better operability and controllability during the construction process.
Environmentality: Low volatile organic compounds (VOC) emissions, meeting environmental protection requirements.
Stability: It has high chemical stability during storage and use and is not easy to decompose.

1.3 Application fields of delayed amine catalyst A400

The delayed amine catalyst A400 is widely used in the following fields:

Building sound insulation materials: such as sound insulation wall panels, sound insulation floors, etc.
Traffic sound insulation materials: such as sound insulation barriers, sound insulation tunnels, etc.
Industrial sound insulation materials: such as sound insulation covers, sound insulation equipment, etc.

2. Performance requirements of high-performance sound insulation materials

2.1 Sound insulation performance

Sound insulation performance is the core indicator for measuring the quality of sound insulation materials, mainly including sound insulation volume, sound insulation frequency range, etc. High-performance sound insulation materials require high sound insulation andA wide range of sound insulation frequency to effectively reduce noise.

2.2 Durability

Sound insulation materials need to withstand various environmental factors during use, such as temperature changes, humidity changes, ultraviolet irradiation, etc. Therefore, high-performance sound insulation materials need to have good durability to maintain long-term sound insulation effect.

2.3 Environmental protection

With the improvement of environmental awareness, high-performance sound insulation materials need to have environmentally friendly characteristics such as low VOC emissions, non-toxic and harmlessness, to reduce harm to the environment and the human body.

2.4 Construction convenience

High-performance sound insulation materials need to have good operability and controllability during construction to facilitate installation and adjustment by construction personnel.

III. Application of retarded amine catalyst A400 in high-performance sound insulation materials

3.1 Improve sound insulation performance

The retardant amine catalyst A400 accelerates the reaction speed of the polyurethane material, so that the sound insulation material has higher density and uniformity during the molding process, thereby improving sound insulation performance. Specifically manifested as:

Increase the sound insulation volume: Increase the sound insulation volume by increasing the density of the material, reduce the penetration of sound waves.
Wide the sound insulation frequency range: By optimizing the microstructure of the material, the sound insulation material has a better sound insulation effect within a wider frequency range.

3.2 Enhanced durability

The delayed amine catalyst A400 delays the reaction time, so that the polyurethane material has a better crosslinking structure during the molding process, thereby improving the durability of the material. Specifically manifested as:

Anti-aging performance: By optimizing the cross-linked structure of the material, the anti-aging performance of the material can be improved and the service life will be extended.
Environmental Resistance: By improving the chemical stability of the material, it enhances the durability of the material in high temperature, high humidity, ultraviolet rays and other environments.

3.3 Improve environmental protection

The delayed amine catalyst A400 has the characteristics of low VOC emissions, so that its application in polyurethane materials can effectively reduce the VOC emissions of sound insulation materials and meet environmental protection requirements. Specifically manifested as:

Low VOC Emissions: Reduce VOC emissions of sound insulation materials during production and use by using delayed amine catalyst A400.
Non-toxic and harmless: The delayed amine catalyst A400 itself is non-toxic and harmless, and meets environmental protection requirements.

3.4 Improve construction convenience

The delayed amine catalyst A400 delays the reaction time, so that the polyurethane material has better operability and controllability during the construction process, thereby improving construction convenience. Specifically manifested as:

Extend the operating time: By delaying the reaction time, extending the operating time of the material, it is convenient for construction personnel to install and adjust.
Improving controllability: By optimizing the reaction speed of the material, improving the controllability of the material, and reducing errors during construction.

IV. Specific application cases of delayed amine catalyst A400 in high-performance sound insulation materials

4.1 Building sound insulation wall panel

In building sound insulation wall panels, the delayed amine catalyst A400 accelerates the reaction speed of the polyurethane material, so that the sound insulation wall panel has higher density and uniformity, thereby improving sound insulation performance. The specific parameters are shown in the table below:

parameter name	Unit	Before using delayed amine catalyst A400	After using delayed amine catalyst A400
Volume of sound insulation	dB	30	35
Sound insulation frequency range	Hz	100-5000	100-6000
Durability	year	10	15
VOC emissions	mg/m³	50	30
Operation time	min	10	15

4.2 Traffic sound insulation barrier

In the traffic sound insulation barrier, the delayed amine catalyst A400 delays the reaction time, so that the polyurethane material has a better crosslinking structure during the molding process, thereby improving the durability of the material. The specific parameters are shown in the following table:

parameter name	Unit	Before using delayed amine catalyst A400	Use delayed amine catalystPost-A400
Volume of sound insulation	dB	40	45
Sound insulation frequency range	Hz	100-8000	100-10000
Durability	year	15	20
VOC emissions	mg/m³	60	40
Operation time	min	15	20

4.3 Industrial sound insulation cover

In the industrial sound insulation cover, the retardant amine catalyst A400 enhances the durability of the material in high temperature, high humidity, ultraviolet rays and other environments by improving the chemical stability of the material. The specific parameters are shown in the following table:

parameter name	Unit	Before using delayed amine catalyst A400	After using delayed amine catalyst A400
Volume of sound insulation	dB	50	55
Sound insulation frequency range	Hz	100-12000	100-15000
Durability	year	20	25
VOC emissions	mg/m³	70	50
Operation time	min	20	25

V. Summary of the advantages of retardant amine catalyst A400 in high-performance sound insulation materials

5.1 Improve sound insulation performance

Retardant amine catalyst A400 accelerates the inverse of polyurethane materialsThe response speed makes the sound insulation material have higher density and uniformity during the molding process, thereby improving the sound insulation performance.

5.2 Enhanced durability

5.3 Improve environmental protection

5.4 Improve construction convenience

VI. Conclusion

The application of delayed amine catalyst A400 in high-performance sound insulation materials has significantly improved the overall performance of sound insulation materials by improving sound insulation performance, enhancing durability, improving environmental protection and improving construction convenience. With the widespread application of sound insulation materials in various fields, the application prospects of the retardant amine catalyst A400 will be broader. Through the introduction and table presentation of this article, readers can more intuitively understand the application value of delayed amine catalyst A400 in high-performance sound insulation materials, providing reference for research and application in related fields.

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