模拟矿井环境下的PEEK/SiO_(2)/CF-MoS_(2)复合材料摩擦行为研究  

Study on Tribological Behavior of PEEK/SiO_(2)/CF-MoS_(2) Composites under Simulated Mine Conditions

作　　者：冯存傲 陶若兰 余振洋 陈凯[1] 张德坤[1] FENG Cunao;TAO Ruolan;YU Zhenyang;CHEN Kai;ZHANG Dekun(School of Materials Science and Physics,China University of Mining and Technology,Xuzhou Jiangsu 221116,China;School of Mechatronic Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221116,China;Foshan Shunde Zhende Plastic Machinery Co.,Ltd.,Foshan Guangdong 528000,China)

机构地区：[1]中国矿业大学材料与物理学院,江苏徐州221116 [2]中国矿业大学机电工程学院,江苏徐州221116 [3]佛山市顺德区震德塑料机械有限公司,广东佛山528000

出　　处：《润滑与密封》2022年第11期47-58,共12页Lubrication Engineering

基　　金：国家自然科学基金项目(51875564,52105231);江苏省自然科学基金项目(BK20211243)。

摘　　要：为改善聚醚醚酮(PEEK)在矿井工况下的摩擦性能,选用纳米二氧化硅(Si O_(2))、二硫化钼(MoS_(2))和短切碳纤维(CF)为增强填料制备PEEK/Si O_(2)/CF-MoS_(2)复合材料,并探究PEEK/Si O_(2)/CF-MoS_(2)复合材料在不同工况条件下的滑动与滚动摩擦学性能;通过模拟滚轮罐耳在矿井环境下的运行方式,分析其磨损形貌和磨损机制。结果表明:PEEK/SiO_(2)/CF-MoS_(2)复合材料在不同载荷条件下均具有良好的减摩和耐磨特性;滑动摩擦在水介质工况下及滚动摩擦在干摩擦工况下,复合材料的摩擦因数和磨损率最低,其磨损机制均以磨粒磨损为主。与矿井常用的聚氨酯材料的对比,PEEK/SiO_(2)/CF-MoS_(2)复合材料的摩擦学性能更为优异。To improve the friction performance of PEEK under mine conditions,PEEK/SiO_(2)/CF-MoS_(2) composites were prepared with nano-silica(SiO_(2)),molybdenum disulfide(MoS_(2))and short-cut carbon fiber(CF)as reinforcing fillers.The sliding and rolling tribological properties of PEEK/SiO_(2)/CF-MoS_(2) composites under different conditions were explored by simulating the operation mode of roller and tank ears in mine environment,and its wear morphology and mechanism were analyzed.The results show that PEEK/SiO_(2)/CF-MoS_(2) composites have good antifriction and wear resistance under different load.The friction coefficient and wear rate of composites are the lowest under the condition of water lubrication and sliding friction and under the condition of dry friction and rolling friction,and the wear mechanism is mainly abrasive wear.Com-pared with the polyurethane materials commonly used in mines,the tribological properties of PEEK/SiO_(2)/CF-MoS_(2) com-posites are better.

关 键 词：PEEK复合材料 滑动摩擦 滚动摩擦 模拟矿井环境 

分 类 号：TH117.1[机械工程—机械设计及理论]