Tribological behavior and energy dissipation characteristics of nano-Al_2O_3-reinforced PTFE-PPS composites in sliding system

作     者：曹文翰 龚俊 杨东亚 高贵 王宏刚 任俊芳 陈生圣 

作者机构：School of Mechanical and Electrical EngineeringLanzhou University of Technology State Key Laboratory of Solid lubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2017年第24卷第9期

页      面：2001-2009页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Project(51165022)supported by the National Natural Science Foundation of China Project(20122117)supported by the Lanzhou Science and Technology Bureau Foundation,China Project(1310RJZA036)supported by the Natural Science Foundation of Gansu Province,China 

主　　题：nano-Al2O3 polytetrafluoroethylene-polyphenylene sulfide (PTFE-PPS) tribological behavior dissipated energy 

摘      要：Nanoparticles are increasingly being used to improve the friction and wear performance of polymers. In this study, we investigated the tribological behavior and energy dissipation characteristics of nano-Al_2O_3-reinforced polytetrafluoroethylenepolyphenylene sulfide(PTFE-PPS) composites in a sliding system. The tribological behaviors of the composites were evaluated under different normal loads(100–300 N) at a high linear velocity(2 m/s) using a block-on-ring tester. Addition of the nano-Al_2O_3 filler improved the antiwear performance of the PTFE-PPS composites, and the friction coefficient increased slightly. The lowest wear rate was obtained when the nano-Al_2O_3 content was 3%(volume fraction). Further, the results indicated a linear correlation between wear and the amount of energy dissipated, even though the wear mechanism changed with the nano-Al_2O_3 content, independent of the normal load applied.