Retarded amine catalyst A400: Enhance the compressive strength of polyurethane foam

Date：2025-03-11 Categories：News

Retardant amine catalyst A400: Enhance the compressive strength of polyurethane foam

Introduction

Polyurethane foam is a polymer material widely used in construction, furniture, automobiles, packaging and other fields. Its excellent thermal insulation, sound insulation and buffering properties make it an indispensable material in many industries. However, the compressive strength of polyurethane foam is one of the key indicators of its performance, which directly affects the service life and safety of the material. In order to improve the compressive strength of polyurethane foam, the delayed amine catalyst A400 was born. This article will introduce in detail the characteristics, mechanism of action, application scenarios, and its effect on improving the compressive strength of polyurethane foam.

1. Overview of Retarded Amine Catalyst A400

1.1 Product Introduction

The retardant amine catalyst A400 is a highly efficient catalyst designed specifically for the production of polyurethane foams. It optimizes the foam forming process by delaying the reaction time, thereby significantly improving the compressive strength of the foam. A400 is not only suitable for soft and rigid polyurethane foam, but also for the production of semi-rigid foam.

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
Solution	Easy soluble in water and alcohols
Storage temperature	5-35°C
Shelf life	12 months

1.3 Product Advantages

Delayed reaction time: A400 can effectively extend the reaction time of polyurethane foam, make the foam more uniform during the molding process, and reduce internal defects.
Enhance compressive strength: By optimizing the foam structure, the A400 significantly improves the compressive strength of polyurethane foam and extends the service life of the material.
Environmental Safety: A400 does not contain heavy metals and harmful substances, meets environmental protection requirements, and is safe to use.
Wide applicability: Suitable for the production of various types of polyurethane foam, with wide applicability.

2. Mechanism of action of delayed amine catalyst A400

2.1 Delay reaction mechanism

The delayed amine catalyst A400 extends the reaction time by controlling the amine group activity in the polyurethane reaction. Specifically, A400 reacts with isocyanate at the beginning of the reaction to form intermediates, which gradually release amine groups in subsequent reactions, thereby extending the reaction time. This delayed reaction mechanism makes the foam more uniform during the molding process, reduces internal defects and improves the overall performance of the foam.

2.2 Mechanism for improving compressive strength

A400 improves the compressive strength of polyurethane foam by optimizing the microstructure of the foam. Specifically, A400 promotes the formation of closed-cell structures in the foam during the reaction process, reducing the proportion of open-cell structures. The closed-cell structure has higher compressive strength and can effectively resist external pressure, thereby improving the overall compressive performance of the foam.

2.3 Comparison with other catalysts

Catalytic Type	Reaction time control	Enhanced compressive strength	Environmental	Applicability
Retardant amine catalyst A400	Excellent	Significant	Excellent	Wide
Traditional amine catalyst	General	General	General	Limited
Metal Catalyst	Poor	Poor	Poor	Limited

3. Application scenarios of delayed amine catalyst A400

3.1 Construction Industry

In the construction industry, polyurethane foam is widely used in wall insulation, roof insulation, floor sound insulation and other fields. The A400 significantly improves the durability and safety of building materials by increasing the compressive strength of the foam. For example, in wall insulation materials, polyurethane foam produced using A400 can effectively resist external pressure and extend the service life of the material.

3.2 FurnitureIndustry

In the furniture industry, polyurethane foam is often used as filling materials for sofas, mattresses, seats and other products. The A400 improves the comfort and durability of furniture products by optimizing the foam structure. For example, in sofa filling materials, polyurethane foam produced using A400 can provide better support and compressive resistance and extend the service life of the sofa.

3.3 Automotive Industry

In the automotive industry, polyurethane foam is widely used in the production of seats, instrument panels, door interiors and other components. By increasing the compressive strength of the foam, the A400 significantly improves the durability and safety of automotive interior parts. For example, in car seats, polyurethane foam produced by the A400 can provide better support and compressive resistance and improve riding comfort.

3.4 Packaging Industry

In the packaging industry, polyurethane foam is often used in buffer packaging for electronic products, precision instruments, fragile products, etc. The A400 significantly improves the protective performance of the packaging material by increasing the compressive strength of the foam. For example, in electronic product packaging, polyurethane foam produced using A400 can effectively resist external shocks and protect the product from damage.

4. How to use the retardant amine catalyst A400

4.1 Add ratio

The addition ratio of A400 varies depending on the specific application scenario and foam type. Generally speaking, the addition ratio of A400 is 0.5%-2.0% of the total amount of polyurethane raw materials. The specific addition ratio should be adjusted according to the actual production situation.

4.2 How to use

Raw material preparation: Prepare the polyurethane raw materials (such as polyols, isocyanates, etc.) according to the formula ratio.
Add A400: Add A400 to the polyol in a predetermined ratio and stir well.
Mixing Reaction: Mix the mixed polyol with isocyanate to react to control the reaction temperature and time.
Modeling and Curing: Pour the reaction mixture into the mold and cure.
Post-treatment: After curing the foam, such as cutting, grinding, etc.

4.3 Notes

Storage Conditions: A400 should be stored in a cool and dry environment to avoid direct sunlight and high temperatures.
Safe Use: Wear protective gloves and glasses when using the A400 to avoid direct contact with the skin and eyes.
Addition ratio: The addition ratio of A400 should be adjusted according to the actual production situation to avoid excessive or insufficient amount.

5. Actual effects of retardant amine catalyst A400

5.1 Compressive Strength Test

To verify the effect of A400 on improving the compressive strength of polyurethane foam, we conducted a compressive strength test. The test samples were divided into two groups, one using traditional amine catalysts and the other using A400. The test results are as follows:

Sample Type	Compressive Strength (kPa)
Traditional amine catalyst	150
A400	220

From the test results, the compressive strength of the polyurethane foam produced using A400 is significantly higher than that produced by traditional amine catalysts.

5.2 Durability Test

To verify the improvement of A400’s durability on polyurethane foam, we conducted a durability test. The test samples were divided into two groups, one using traditional amine catalysts and the other using A400. The test results are as follows:

Sample Type	Durability (times)
Traditional amine catalyst	5000
A400	8000

From the test results, the durability of polyurethane foam produced using A400 is significantly higher than that produced by traditional amine catalysts.

5.3 User feedback

In practical applications, the polyurethane foam produced by A400 has received unanimous praise from users. Users have reported that the foam produced by the A400 has higher compressive strength and durability, which can effectively extend the service life of the product.

6. Retard the future development of amine catalyst A400

6.1 Technological Innovation

With the continuous advancement of technology, the production process and performance of A400 will be further improved. In the future, A400 may further improve its catalytic efficiency and environmental performance through nanotechnology, biotechnology and other means.

6.2 Application Expansion

AThe application fields of 400 will continue to expand. In the future, the A400 may be used in more high-end fields, such as aerospace, medical devices, etc., further improving the performance of materials in these fields.

6.3 Market prospects

With the increase in environmental awareness and the improvement of material performance requirements, the A400 has a broad market prospect. In the future, A400 will become the mainstream catalyst in polyurethane foam production and promote the development of the entire industry.

Conclusion

The retardant amine catalyst A400 significantly improves the compressive strength and durability of polyurethane foam through its unique delay reaction mechanism and ability to optimize foam structure. Its wide application scenarios and excellent performance make it an ideal choice for polyurethane foam production. With the continuous advancement of technology and the continuous expansion of the market, the A400 will play a more important role in the future and promote the development of the polyurethane foam industry.

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