Process and equipment for synthesizing high-wear-resistance polyether-ether-ketone

By introducing abrasion-resistant polymer chain on the polyether ether ketone (PEEK) molecular chain and adding reinforcement materials, a high wear resistance PEEK composite material was prepared, which solved the wear problem of PEEK materials under high temperature, high pressure and high speed friction conditions, and significantly improved the wear resistance and mechanical strength of the material.

CN119708379APending Publication Date: 2025-03-28JIANGSU HENGFENGLONG NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202411914208.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Existing polyether ether ketone (PEEK) materials are prone to wear under high temperature, high pressure and high speed friction conditions, which affects service life and reliability.

Method used

High wear resistance PEEK composites are prepared by melt blending process by introducing abrasion-resistant polymer chain onto the PEEK molecular chain and adding reinforcement materials such as silica or alumina. The process involves precise control of reaction temperature and time, ensuring that acrylonitrile is fully grafted onto the PEEK backbone and dispersing the reinforcement material evenly.

Benefits of technology

The wear resistance and mechanical strength of PEEK materials are significantly improved, and composite materials with excellent performance are obtained, which can exhibit longer service life and higher reliability in extreme environments.

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Abstract

The invention discloses a high-wear-resistance polyether-ether-ketone synthesis process and equipment, and belongs to the technical field of polyether-ether-ketone processing. According to the high-wear-resistance polyether-ether-ketone synthesis process, 4, 4 '-difluorobenzophenone and hydroquinone are selected as main raw materials, a catalyst is introduced, a polar aprotic solvent is adopted to ensure uniform reaction, reaction conditions are controlled, PEEK powder is separated and purified, a polymer chain with a wear-resistant function is introduced to a PEEK molecular chain, and a reinforcing material is added to the PEEK material. According to the preparation method, measures such as segmented heating, variable-speed stirring and pressure control are adopted, so that effective contact between monomers and smooth proceeding of reaction are ensured, fine regulation and control of temperature and pressure are beneficial to obtaining of ideal polymerization degree and molecular weight distribution, a polymer chain with a wear-resistant function is introduced to a PEEK molecular chain, and a reinforcing material is added, so that the wear-resistant PEEK composite material is obtained. The wear resistance and the mechanical strength of the PEEK material are obviously improved.
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