Retarded amine catalyst A400: Improve consistency of polyurethane products

admin — Mon, 10 Mar 2025 18:51:31 +0000

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.

Retarded amine catalyst A400: Improve consistency of polyurethane products – Amine Catalysts