PEEK及其PEEK/CF复合材料的高温摩擦磨损性能
逄显娟12，岳世伟1，谢金梦1，黄素玲1，王帅1，宋晨飞1，岳赟1，刘建1，陆焕焕1
1.河南科技大学高端轴承摩擦学技术与应用国家地方联合工程实验室，河南洛阳 471023；
2.河南科技大学材料科学与工程学院，河南洛阳 471023
High Temperature Friction and Wear Properties of PEEK and its PEEK/CF Composite
Pang Xianjuan12, Yue Shiwei1, Xie Jinmeng1 , Huang Suling1, Wang Shuai1, Song Chenfei1, Yue Yun1, Liu Jian1, Lu Huanhuan1
1.National United Engineering Laboratory for Advanced Bearing Tribology,Henan University of Science and Technology,Luoyang 471023,China; 2.School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471023,China
摘要：聚醚醚酮(PEEK)因其独特的结构而具有优异的综合性能 ，但纯 PEEK 材料因耐磨性能较差限制了其更广泛的应用，可通过填充改性来提高 PEEK 的摩擦磨损性能。利用真空热压烧结技术制备了纯 PEEK 及碳纤维(CF)增强聚醚醚酮(PEEK/CF)复合材料。采用 X 射线衍射 、傅里叶变换红外光谱、热重分析等表征手段对材料的结构 、力学性能和热学性能进行表征，并利用多功能摩擦磨损试验机 、三维轮廓仪、扫描电子显微镜等对材料的高温摩擦磨损性能进行表征和分析。结果表明，CF 的加入并没有改变 PEEK 的结构 。与纯 PEEK 材料相比，PEEK/CF 复合材料的硬度稍有增加 ，拉伸性能有所降低。PEEK 材料的磨损率先降低后增加，然而 PEEK/CF 复合材料的磨损率先增加后降低。在相对较低环境温度条件下 ，PEEK 及 PEEK/CF 复合材料的磨损机理为磨粒磨损和黏着磨损 ；在 200 ℃高温条件下，纯 PEEK 材料表现为黏着磨损和疲劳磨损，而 PEEK/CF 复合材料为轻微的黏着磨损。
Abstract：Polyether ether ketone (PEEK) has excellent comprehensive properties due to its unique structure. However, pure PEEK material is limited in its wider applications due to poor wear resistance. Filling modification can be used to improve the friction and wear performances of PEEK. Using vacuum hot pressing sintering technology, pure PEEK and carbon fiber (CF) reinforced polyether ether ketone (PEEK/CF) composite materials were prepared. The structure, mechanical properties and thermal properties of the materials were characterized by means of X-ray diffraction, infrared, thermogravimetry, etc. The high temperature friction and wear properties of prepared materials were characterized and analyzed by means of multi-functional friction and wear tester, threedimensional profiler, scanning electron microscope, etc. The results show that the addition of CF does not change the structure of PEEK. Compared with pure PEEK material, the hardness of PEEK/CF composite material slightly increases, while the tensile properties decrease. The wear of PEEK material first decreases and then increases, that wear of PEEK/CF composite material first increases and then decreases. Under relatively low environmental temperature conditions, the wear mechanism of PEEK and PEEK/CF composites are abrasive wear and adhesive wear. Under high temperature conditions of 200 ℃, pure PEEK material exhibits adhesive wear and fatigue wear, while PEEK/CF composites exhibit slight adhesive wear.
关键词：聚醚醚酮；复合材料；结构；摩擦；磨损
Keywords：polyether ether ketone; polymer composites; structure; friction; wear
基金：国家自然科学基金项目(92266205，52105181)，河南省自然科学基金项目(222300420436)，河南省高校国家级大学生创新创业训练计划项目(202210464028)
本文引用格式：
逄显娟，岳世伟，谢金梦，等.PEEK及其PEEK/CF复合材料的高温摩擦磨损性能[J].工程塑料应用，2023，51(8)：119-126.
Pang Xianjuan，Yue Shiwei，Xie Jinmeng，et al. High Temperature friction and wear properties of PEEK and its PEEK/CF composite[J]. Engi‐neering Plastics Application，2023，51(8)：119-126.
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