中国机械工程 ›› 2026, Vol. 37 ›› Issue (1): 14-21.DOI: 10.3969/j.issn.1004-132X.2026.01.002

• 多场耦合特殊工况摩擦学专栏 • 上一篇    下一篇

聚电解质改性聚醚醚酮复合材料的摩擦学性能

高传豹1(), 张欣悦1, 岑佳佳2, 陈琴2, 冯海燕1, 陈凯1, 张德坤1()   

  1. 1.中国矿业大学材料与物理学院, 徐州, 221116
    2.中国矿业大学化工学院, 徐州, 221116
  • 收稿日期:2025-05-26 出版日期:2026-01-25 发布日期:2026-02-05
  • 通讯作者: 张德坤
  • 作者简介:高传豹,男,2001年生,硕士研究生。研究方向为PEEK材料改性及摩擦学性能。E-mail: gao_chuanbao@cumt.edu.cn
    张德坤*(通信作者),男,1971年生。教授,博士研究生导师。发表论文300余篇。E-mail: dkzhang@cumt.edu.cn.
    第一联系人:沈明学*(通信作者),男,1982年生,博士、教授、博士研究生导师。研究方向为摩擦学及表面工程。E-mail:shenmingxue@126.com.
  • 基金资助:
    国家自然科学基金(52335004);国家自然科学基金(52405239)

Tribological Properties of Polyelectrolyte-Modified PEEK Composite Materials

GAO Chuanbao1(), ZHANG Xinyue1, CEN Jiajia2, CHEN Qin2, FENG Haiyan1, CHEN Kai1, ZHANG Dekun1()   

  1. 1.School of Materials Science and Physics,China University of Mining and Technology,Xuzhou,Jiangsu,221116
    2.School of Chemical Engineering & Technology,China University of Mining and Technology,Xuzhou,Jiangsu,221116
  • Received:2025-05-26 Online:2026-01-25 Published:2026-02-05
  • Contact: ZHANG Dekun

摘要:

为了提高聚醚醚酮(PEEK)的摩擦学性能,提出了“先改性,后成形”方法。通过紫外光引发将亲水性3-磺酸丙基甲基丙烯酸钾盐(SPMK)接枝到PEEK粉体表面,再热压制备PEEK-SPMK复合材料,分析了PEEK改性后在不同工况下的摩擦磨损行为,揭示聚电解质SPMK粉体改性对PEEK复合材料摩擦学行为的影响机制和润滑机理。结果表明:SPMK粉体改性显著提高了PEEK表面的润湿性;PEEK-SPMK在生理盐水中的摩擦因数0.028和磨损率5.6×10-7 mm3/(N·m)较纯PEEK显著减小。

关键词: 人工关节, 粉体表面修饰, 聚醚醚酮, 聚电解质, 水合润滑

Abstract:

To enhance the tribological properties of PEEK, a “modify-then-form” approach was proposed. Hydrophilic SPMK was grafted onto the PEEK powder surface via UV-induced polymerization, then the PEEK-SPMK composites were prepared by hot-pressing. The friction and wear behaviors of modified PEEK under various operating conditions were analyzed, revealing the influence mechanism and lubrication mechanism of polyelectrolyte SPMK powder modification on the tribological behavior of PEEK composites.Results indicate that SPMK powder modification significantly enhances PEEK surface wettability. The friction coefficient(0.028) and wear rate(5.6×10-7 mm³/(N·m)) of PEEK-SPMK in physiological saline are markedly reduced compared to pure PEEK.

Key words: artificial joint, powder surface modification, polyetheretherketone (PEEK), polyelectrolyte, hydration lubrication

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