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以改性氧化石墨烯(MGO)/聚苯乙烯为复合壁材,硬脂酸丁酯为润滑芯材,通过种子微悬浮聚合法制备了改性氧化石墨烯微胶囊润滑材料(MGO-Micro LMs),以MGO-Micro LMs为润滑添加剂,经本体浇铸成型制备MGOMicro LMs/PS复合材料.采用IR和SEM表征了化学组成和微观形貌,以微机控制电子万能试验拉伸机和高速往复摩擦磨损试验仪评价了断裂行为和摩擦学性能,以Mico-XAM非接触式三维表面轮廓仪观察磨痕表面形貌并计算磨损率.结果表明:MGO-Micro LMs在聚苯乙烯基体中具有良好的分散性和相容性,同时对聚苯乙烯基体材料具有增韧效果;MGO-Micro LMs可以提高聚苯乙烯基体材料摩擦磨损性能,具有润滑和减摩作用,MGO-Micro LMs润滑机理为边界润滑.
The modified graphene oxide (MGO) / polystyrene as the composite wall material and the butyl stearate as the lubricating core material were prepared by micro-suspension polymerization of modified graphene oxide (MGO-Micro LMs) ), MGOMicro LMs / PS composites were prepared by bulk casting with MGO-Micro LMs as lubricant additive.The chemical composition and microstructure were characterized by IR and SEM, and the tensile test was carried out by microcomputer controlled electronic universal tensile tester and high speed reciprocating friction and wear The tribological properties and tribological properties were evaluated by the tester, and the surface morphology of wear scar was observed by Mico-XAM non-contact three-dimensional surface profilometer and the wear rate was calculated.The results show that MGO-Micro LMs has good dispersion in polystyrene matrix And compatiblity of the polystyrene matrix. Meanwhile, the MGO-Micro LMs can improve the friction and wear properties of the polystyrene matrix with lubrication and friction reduction. The lubrication mechanism of MGO-Micro LMs is boundary lubrication.