摘要
选用二硫化钼 ( Mo S2 )、聚四氟乙烯 ( PTFE)、石墨、玻璃纤维、碳纤维等填料填充超高分子量聚乙烯( UHMW- PE) ,研究了这些填料对 UHMW- PE摩擦磨损、表面硬度和冲击强度等性能的影响。结果表明 :填料使UHMW- PE性能发生显著改变 ,其中碳纤维克服了 U HMW- PE表面硬度低、抗磨粒磨损能力差等缺点 ,是最为理想的填料。对填料在 UHMW- PE中的作用机理进行了分析和讨论 ,为 U HMW-
Ultra high molecular weight polyethylene (UHMW-PE) possesses many outstanding physical and mechanical properties and may substitute metal materials widely applied in mechanical field. The friction and wear properties of UHMW-PE composites filled with MoS2, PTFE, carbon fiber, glass fiber and graphite were studied by a MPV - 200 friction and wear tester and a caustic wear tester. At the same time, the effects of fillers on impact strength and rigidity of UHMW-PE were discussed. Experimental results show that graphite, MoS2 PTFE reduce the friction coefficient of UHMW-PE, but glass fiber increases the friction coefficient of UHMW-PE, and all the fillers reduce impact strength of UHMW-PE. Carbon fiber can not only increase the surface rigidity of UHMW-PE, but also greatly reduce the wear of UHMW-PE, so it is a kind of perfect filler to UHMW-PE. Furthermore, the mechanism was systematically analyzed, which laid foundations for optimum structure and property of material.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2001年第6期114-116,共3页
Transactions of the Chinese Society for Agricultural Machinery
基金
教育部科学技术重点项目资助 (项目编号 :9910 4)
关键词
填料
超高分子量聚乙烯
改性
工程材料
Fillers, Ultra high molecular weight polyethylene, Modification
