Thermoplastic polyphenyl ether containing reticular phosphatized polyphenyl ether cross-linked structure as well as preparation method and application of thermoplastic polyphenyl ether

By introducing phosphorus oxychloride into polyphenylene ether to form a network phosphating polyphenylene ether structure, the problem of the inability to simultaneously achieve flame retardancy and heat resistance in the existing technology is solved, and the material's high heat resistance and rigidity are improved.

CN122213399APending Publication Date: 2026-06-16WANHUA CHEM GRP CO LTD
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Patent Information

Application Number
CN202610076486.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-21
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing technologies struggle to improve the heat resistance and rigidity of automotive materials without sacrificing flame retardant properties, particularly in key electronic components such as power battery systems and electric vehicle control units.

Method used

By introducing an excess of phosphorus oxychloride into polyphenylene ether to react with polyphenylene ether to form a network phosphating polyphenylene ether structure, a semi-crosslinked network structure is established, which promotes the formation of the char layer to improve flame retardant performance and mechanical strength, and reduces the amount of flame retardant used in the blending end.

Benefits of technology

This study achieved an improvement in the heat resistance and rigidity of polyphenylene ether materials without reducing the flame retardant effect, resulting in a material with excellent flame retardant properties, heat resistance, and rigidity.

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Abstract

The invention provides thermoplastic polyphenyl ether containing a reticular phosphatized polyphenyl ether cross-linked structure as well as a preparation method and application of the thermoplastic polyphenyl ether. According to the preparation method of the TPV cross-linked polyphenyl ether capable of being subjected to thermoplastic processing, disclosed by the invention, part of PPO resin is constructed into a net-shaped structure through a hydroxyl-terminated reaction of phosphorus oxychloride and polyphenyl ether. According to the modified polyether, the flame retardant property of the material can be improved by depending on an additional flame retardant, and the heat resistance and rigidity of the polyphenyl ether material are further improved on the premise of having excellent flame retardant property.
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