Retarded amine catalyst C225 enhances the softness of polyurethane products

Date：2025-03-11 Categories：Our Projects

Application of delayed amine catalyst C225 in enhancing the softness of polyurethane products

Introduction

Polyurethane (PU) is a polymer material widely used in various fields, with excellent mechanical properties, wear resistance, chemical resistance and elasticity. However, in some application scenarios, such as furniture, automotive interiors, shoe materials, etc., the softness of polyurethane products is a key performance indicator. To meet these needs, the researchers developed a variety of methods to enhance the flexibility of polyurethanes, where the use of the delayed amine catalyst C225 is an effective means.

This article will introduce in detail the application of delayed amine catalyst C225 in enhancing the softness of polyurethane products, including its working principle, product parameters, application cases and future development directions.

1. Working principle of delayed amine catalyst C225

1.1 Basic concepts of delayed amine catalysts

The delayed amine catalyst is a special catalyst that can delay its activity during the polyurethane reaction, thereby controlling the progress of the reaction. This delay effect allows the polyurethane material to flow better during the molding process, filling every corner of the mold, and finally forming a uniform and soft product.

1.2 Chemical structure of C225

C225 is a typical delayed amine catalyst with specific amine groups in its chemical structure that are “dormant” at the beginning of the reaction and are activated only at specific temperatures or pH conditions. This characteristic allows C225 to function at critical moments in the polyurethane reaction, ensuring the uniformity and softness of the material.

1.3 Mechanism of delay effect

The delay effect of C225 is mainly achieved through the following mechanisms:

Temperature Control: C225 is less active at low temperatures, and its activity gradually increases as the temperature increases. This temperature dependence allows C225 to remain low in activity at the beginning of the polyurethane reaction, avoiding premature initiation of reactions, thereby ensuring material fluidity.
pH control: The activity of C225 is also affected by pH. Within a specific pH range, C225 is in good condition, which allows it to function at critical moments in the polyurethane reaction, ensuring the uniformity and softness of the material.

2. Product parameters of delayed amine catalyst C225

2.1 Physical Properties

parameter name	Value/Description
Appearance	Colorless to light yellow liquid
Density (20°C)	1.02 g/cm³
Boiling point	220°C
Flashpoint	110°C
Solution	Easy soluble in water, alcohols, and ketones

2.2 Chemical Properties

parameter name	Value/Description
Molecular Weight	225 g/mol
Active temperature range	50°C – 120°C
Optimal pH range	7.0 – 9.0
Storage Stability	12 months (25°C, avoiding light)

2.3 Application parameters

parameter name	Value/Description
Recommended additions	0.1% – 0.5%
Applicable polyurethane types	Soft, semi-hard, hard
Applicable Process	Casting, spraying, molding

3. Application of retardant amine catalyst C225 in polyurethane products

3.1 Furniture Industry

In the furniture industry, polyurethane foam is widely used in the manufacturing of sofas, mattresses and other products. Using C225 as a catalyst can significantly improve the softness and comfort of polyurethane foam while maintaining good resilience and durability.

3.1.1 Application Cases

Product Type	The effect of using C225
Sofa cushion	Improve softness and enhance comfort
Mattress	Improve support and extend service life
cushion	Enhance flexibility and improve user experience

3.2 Car interior

In automotive interiors, polyurethane materials are used for the manufacturing of seats, steering wheels, instrument panels and other components. The use of the C225 ensures that these components can maintain good flexibility and elasticity in both high and low temperature environments, improving driving and riding comfort.

3.2.1 Application Cases

Product Type	The effect of using C225
Car Seat	Improve softness and enhance comfort
Steering wheel	Improve the feel and improve the driving experience
Dashboard	Enhance elasticity and extend service life

3.3 Shoe Materials Industry

In the shoe material industry, polyurethane materials are used in the manufacturing of soles, insoles and other components. The use of C225 can significantly improve the softness and wear resistance of the sole, while maintaining good elasticity and support, improving the comfort and durability of the shoes.

3.3.1 Application Cases

Product Type	The effect of using C225
Sole	Improve softness and enhance comfort
Insole	Improve support and extend service life
Sports Shoes	Enhance elasticity and improve sports performance

4. Advantages of Retarded amine Catalyst C225

4.1 Improve softness

C225 delays the reaction activity, ensures that the polyurethane material can flow better during the molding process, fills every corner of the mold, and finally forms a uniform and soft product.

4.2 Enhance elasticity

CThe use of 225 can significantly improve the elasticity of polyurethane products, so that they can quickly return to their original state when subjected to external forces, and maintain good shape and performance.

4.3 Extend service life

The use of C225 can significantly improve the durability of polyurethane products, so that it maintains good flexibility and elasticity during long-term use, and extends its service life.

4.4 Environmental performance

C225 is an environmentally friendly catalyst, does not contain harmful substances, meets environmental protection requirements, and is suitable for the manufacturing of various environmentally friendly polyurethane products.

5. Future development direction of delayed amine catalyst C225

5.1 Development of new catalysts

With the continuous expansion of the application field of polyurethane materials, the requirements for catalyst performance are becoming increasingly high. In the future, researchers will continue to develop new types of delayed amine catalysts to meet the needs of different application scenarios.

5.2 Green and environmentally friendly

With the increase in environmental awareness, the development of delayed amine catalysts in the future will pay more attention to environmental protection performance, reduce environmental pollution, and promote the sustainable development of the polyurethane industry.

5.3 Intelligent application

With the development of intelligent manufacturing technology, the application of delayed amine catalysts in the future will be more intelligent, and efficient and high-quality production of polyurethane products will be achieved through precise control of reaction conditions.

Conclusion

The delay amine catalyst C225 has significant advantages in enhancing the softness of polyurethane products and is widely used in furniture, automotive interiors, shoe materials and other industries. By precisely controlling the reaction conditions, C225 can significantly improve the flexibility, elasticity and durability of polyurethane products, while meeting environmental protection requirements. In the future, with the development of new catalysts and the application of intelligent technologies, the application prospects of C225 in the polyurethane industry will be broader.

Appendix

Appendix A: Comparison of the application effects of C225 in different polyurethane products

Product Type	Fluidity before using C225	Softness after using C225	Elevation
Sofa cushion	Medium	High	50%
Car Seat	Medium	High	60%
Sole	Medium	High	70%

Appendix B: Comparison of the activity of C225 at different temperatures

Temperature (°C)	C225 activity
50	Low
80	in
120	High

Appendix C: Comparison of activity of C225 at different pH values

pH value	C225 activity
6.0	Low
7.5	in
9.0	High

Through the above content, we can fully understand the application and advantages of the delayed amine catalyst C225 in enhancing the softness of polyurethane products. I hope this article can provide valuable reference for technicians and researchers in relevant industries.

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