利用球磨混合和热压成型方法制备高性能的超高分子量聚乙烯/氟化石墨（PE-UHMW/GrF）复合材料。通过接触角测量设备、拉伸试验机和摩擦磨损试验机分别研究复合材料的湿润性、力学性能和水润滑环境下的摩擦学性能。结果表明：添加氟化石墨（GrF）能够显著降低复合材料的亲水性能。添加少量的GrF能够显著提升复合材料的力学性能。当GrF的质量分数达到1.0%时，复合材料的弹性模量、屈服强度和断裂强度比PE-UHMW分别增加39.13%、15.19%和6.60%。在水润滑环境中，GrF在超高分子量聚乙烯（PE-UHMW）基体中起到减小摩擦系数和磨损率的作用。当GrF的质量分数为0.5%时，复合材料的摩擦系数降到最低值0.023 3。GrF提高了PE-UHMW复合材料的抗磨损性能，其磨损机理主要为疲劳磨损。随着GrF添加量的增加，复合材料的抗疲劳磨损的性能逐渐增强。

The study prepared high-performance ultra-high molecular weight polyethylene/graphite fluoride (PE-UHMW/GrF) composites using ball milling and hot pressing techniques. The wettability, mechanical properties, and tribological performance of composites in a water-lubricated environment were studied by a contact angle measurement equipment, a tensile testing machine and a friction-wear testing machine, respectively. The results showed that the addition of graphite fluoride (GrF) significantly reduced the hydrophilicity of the composites. Adding a small amount of GrF significantly improved the mechanical properties of the composites. When the mass fraction of GrF reached 1.0%, the elastic modulus, yield strength, and tensile strength of the composites increased by 39.13%, 15.19% and 6.60% compared to PE-UHMW. In the water-lubricated environment, GrF reduced both the friction coefficient and wear rate of the ultra-high molecular weight polyethylene (PE-UHMW) matrix. With a 0.5% mass fraction of GrF, the friction coefficient of the composite dropped to a minimum value of 0.023 3. GrF enhanced the wear resistance of the PE-UHMW composites, with the wear mechanism primarily being fatigue wear. With the GrF content increased, the fatigue wear resistance of the composites progressively improved.