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通过销盘试验分析氧化石墨烯(GO)、聚乙二醇(PEG)和不同比例的GO/PEG复合材料的摩擦学性能,考察GO增强PEG在人工关节材料UHMWPE-CoCrMo配副上的润滑效果,并利用FTIR、XRD、拉曼光谱等研究了GO/PEG复合材料的结构和性能。结果表明:混合比例为0.85wt%GO与40wt%PEG的GO/PEG复合材料在4.2 MPa加载载荷、0.024m/s的滑动速度条件下,平均摩擦系数为0.015,具有良好的润滑效果;GO均匀地分散在PEG溶液中,组分间较强的界面相互作用协同增强了GO/PEG复合材料的润滑性能。
The tribology properties of graphene oxide (GO), polyethylene glycol (PEG) and different ratios of GO / PEG composites were analyzed by pin-plate test, and the lubricating effects of GO on UHMWPE-CoCrMo The structure and properties of GO / PEG composites were investigated by FTIR, XRD and Raman spectroscopy. The results show that the GO / PEG composite with 0.85wt% GO and 40wt% PEG has a good lubricating effect under a load of 4.2 MPa and a sliding speed of 0.024 m / s. GO uniform Dispersed in PEG solution. The strong interfacial interaction between the components synergistically enhanced the lubricity of GO / PEG composites.