Amine polyether polyol as well as preparation method and application thereof

By developing high-functional amine polyether polyols, the safety and environmental protection problems caused by amine catalysts in polyurethane foam products are solved, and the effects of reducing the amount of amine catalysts, reducing the volatile organic content of the product and reducing production costs are achieved.

CN119684588APending Publication Date: 2025-03-25SHANGHAI DONGDA CHEM
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Patent Information

Application Number
CN202411819280.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

In polyurethane foam products, amine small molecule catalysts will penetrate the surface of the product and diffuse into the environment during the foaming process, resulting in safety and environmental protection problems, especially in the automotive interior and furniture industries, with serious problems of new car odor and windshield atomization.

Method used

A highly functional amine polyether polyol was developed. Through the anionic polymerization reaction, adsorbent treatment and heating and dehydration steps in the synthesis method, a highly reactive and catalytic activity amine polyether polyol was prepared to replace traditional amine catalysts.

Benefits of technology

It significantly reduces the amount of amine catalysts used in polyurethane foam products, reduces the volatile organic content in the products, improves the environmental protection performance of the products, and reduces production costs for the manufacturers.

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Abstract

The invention discloses amine polyether polyol as well as a preparation method and application thereof, and belongs to the technical field of polyol. According to the technical scheme, the amine polyether polyol comprises an amine initiator, a catalyst, an epoxide and an adsorbent, and the synthesis method comprises the following steps: 1) adding the amine initiator and the catalyst into a reactor, introducing inert gas into a material for replacement, adding the epoxide into the mixture, and carrying out anionic polymerization reaction; (2) carrying out heat preservation and curing reaction at 80-150 DEG C for 3-6 hours, and after the reaction is completed, heating and degassing at 90-110 DEG C to obtain a polyether polyol crude product; and 3) adsorbing the polyether polyol crude product with an adsorbent, heating for dehydration, and filtering to obtain the amine polyether polyol finished product. The amine polyether polyol synthesized by the method disclosed by the invention is high in functionality, the synthesis process conditions are easy to control, and the product is high in reaction activity and catalytic activity and stable in storage, and can be used as a cross-linking agent and a catalyst.
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