摘要
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 tribological properties of graphene oxide（GO）,polyethylene glycol （PEG）and different proportions of the GO/PEG composites were researched through pin and disc experiment,and the lubrication effect of PEG in-tensified by GO was investigated in UHMWPE-CoCrMo artificial joint materials.The structure and properties of GO/PEG composites were studied by FTIR,XRD and Laser Roman spectrometer in detail.The results show that the GO/PEG composites including 0.85wt% GO and 40wt% PEG have good lubrication effect,the average friction coefficient achieves 0.015 under the condition of 0.024 m/s sliding speed and 4.2 MPa load.GO is dispersed in PEG solution homogeneously,and the lubrication effect of GO/PEG composites can be improved significantly by the strong interfacial interactions between both components.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2017年第11期2598-2604,共7页
Acta Materiae Compositae Sinica
基金
国家自然科学基金(51475358)
关键词
氧化石墨烯
聚乙二醇
复合材料
人工关节
润滑
graphene oxide
polyethylene glycol
composites
artificial joints
lubrication
