采用常温机械共混+高温模压方法制备了添加不同含量聚四氟乙烯（PTFE）微粉聚醚醚酮复合材料，研究了其力学性能、摩擦磨损性能及磨损形貌，并探讨了其摩擦磨损机理。结果表明：随PTFE微粉含量的增加，复合材料的洛氏硬度和压缩强度均降低，干摩擦条件下的摩擦因数减小，体积磨损量先降后升，当PTFE微粉质量分数5%时，体积磨损量最低；在油润滑和水润滑条件下复合材料的摩擦因数和体积磨损量均小于干摩擦条件下的，且随PTFE微粉含量的增加，油润滑条件下的体积磨损量下降，而水润滑条件下的增大；在干摩擦条件下复合材料的磨损机制以磨粒磨损为主，并伴有疲劳磨损，在油润滑条件下复合材料表面存在少量片状PTFE磨屑和碳纤维富集，在水润滑条件下复合材料表面被PTFE微片层覆盖，局部存在微裂纹和孔洞。

Polyetheretherketone (PEEK)composites containing polytetrafluoroethylene (PTFE)micro-powder with different content were prepared by mechanical mixing at room temperature and hot compressing molding. The mechanical properties, friction and wear properties and wear morphology of the composite were studied, and the friction and wear mechanism was discussed. The results show that with increasing content of PTFE micro-powder, Rockwell hardness and compression strength of the composite decreased; the friction coefficient decreased and the volume wear loss decreased first and then increased under dry friction condition. The volume wear loss under dry friction condition was the smallest when the mass fraction of PTFE micro-powder was 5%. The friction coefficient and volume wear loss under oil and water lubrication conditions were both smaller than that under dry friction condition. The volume wear loss decreased under oil lubrication condition and increased under water lubrication condition with the increase of PTFE micro-powder content. The wear mechanism of composite under dry friction condition was mainly abrasive wear accompanied by fatigue wear; a small amount of lamellar PTFE wear debris and enrichment of carbon fiber were found on the surface of the composite under oil lubrication condition; the surface of the composite was covered by PTFE micro lamella, and micro cracks and cavities existed in the local area under water lubrication condition.