塑料科技2024，Vol.52Issue(11)：19-23,5.DOI:10.15925/j.cnki.issn1005-3360.2024.11.004
水润滑条件下填充氟化石墨对超高分子量聚乙烯复合材料的减摩耐磨性能研究
Study on Friction Reduction and Wear Resistance of Ultra High Molecular Weight Polyethylene Composites Filled with Fluorinated Graphite Under Water Lubrication Conditions
摘要
Abstract
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.关键词
氟化石墨/超高分子量聚乙烯/拉伸性能/摩擦学性能Key words
Graphite fluoride(GrF)/Ultra-high molecular weight polyethylene(PE-UHMW)/Tensile properties/Tribological performance分类
通用工业技术引用本文复制引用
杨飞,韦志强,黄国栋,曹澍..水润滑条件下填充氟化石墨对超高分子量聚乙烯复合材料的减摩耐磨性能研究[J].塑料科技,2024,52(11):19-23,5.基金项目
国家自然科学基金(51605193) （51605193）
