聚苯硫醚复合材料在柴油润滑状态下的摩擦学性能研究

发布时间：2018-01-11 05:29

本文关键词：聚苯硫醚复合材料在柴油润滑状态下的摩擦学性能研究　出处：《摩擦学学报》2017年04期 　论文类型：期刊论文

【摘要】：分别以短切碳纤维(SCF)、铜(Cu)、氧化铜(CuO)和硫化铜(CuS)微米颗粒作为填料,通过热压成型制备了系列的聚苯硫醚(PPS)复合材料.利用环-块摩擦磨损试验机,研究了PPS复合材料在柴油润滑状态下的摩擦学性能,结合摩擦表面形貌、转移膜结构和摩擦化学分析,研究了摩擦学机理.结果表明:填充微米颗粒后,PPS复合材料在柴油润滑状态下的摩擦学性能均有不同程度的提高.加入SCF后,PPS表现出最好的耐磨性;Cu和CuS颗粒显著降低PPS的摩擦系数.在此基础上,进一步探究了SCF/Cu、SCF/CuS两组复合填料分别对PPS材料摩擦学性能的影响.研究发现:复合填充SCF和CuS填料后,PPS复合材料的摩擦学性能最佳.SCF和CuS表现出显著的协同效应:SCF提高PPS材料的承载能力和耐磨性;CuS在摩擦界面发生摩擦化学反应,促进具有润滑特性转移膜的形成.
[Abstract]:With short carbon fiber (SCF), copper (Cu), copper oxide (CuO) and copper sulfide (CuS) particles as fillers, were prepared by hot pressing molding polyphenylene sulfide (PPS) series of composite materials. Using the ring block wear test machine, on the tribological properties of PPS composites in the condition of lubrication, friction with the surface morphology, structure and chemical analysis of membrane friction transfer on the tribological mechanism. The results show that the filling of micron particles, both the Tribological Behaviors of PPS composites in the diesel lubrication condition improved in different degree. After joining SCF, PPS showed the best wear resistance; Cu and CuS particles significantly reduce the friction coefficient of PPS. On this basis, to further explore the effects of SCF/Cu, SCF/CuS two groups were composite fillers on the tribological properties of PPS materials. The study found: SCF and CuS composite filled with filler, the tribological properties of PPS Composites Jia.SCF and CuS showed significant synergistic effect: SCF increased the load-bearing capacity and wear resistance of PPS materials; CuS produced frictional chemical reaction at the friction interface, which promoted the formation of lubricating characteristic transfer film.

【作者单位】：中国科学院兰州化学物理研究所固体润滑国家重点实验室;中国科学院大学;
【基金】：国家重点基础研究发展规划项目(973)(2015CB057502) 国家自然科学基金项目(51475446) 青年千人计划项目资助~~
【分类号】：TH117
【正文快照】： Received 13 February 2017,revised 12 May 2017,accepted 15 May 2017,available online 28 July 2017.*Corresponding author.E-mail:gzhang@licp.cas.cn,Tel:+86-931-4968041;E-mail:wangqh@licp.cas.cn,Tel:+86-931-4968180.The project was supported by the National K

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