中国石油大学学报（自然科学版）2011，Vol.35Issue(1)：115-118,4.DOI:10.3969/j.issn.1673-5005.2011.01.023
纳米SiO2填充UHMWPE/PTFE/纳米MMT复合材料的摩擦磨损行为
Friction and wear behavior of nano-SiO2 filled ultra high molecular weight polyethylene/polytetrafiuoroethylene/nano-montmorillonite composites
摘要
Abstract
Ultra high molecular weight polyethylene (UHMWPE) based composites filled with nanometer SiO2, nanometer montmorillonite (MMT) and polytetrafluoroethylene (PTFE) were prepared by heat compression molding. The friction and wear behaviors of the composites sliding against AISI-10 45 carbon steel disc under dry ambient condition were evaluated on a pin-on-disc test rig. The worn surfaces of the composites were observed on a scanning electron microscope. The results show that when the mass fractions of PTFE and nanometer MMT both are fixed at 6％, the composites with 2％ nano-SiO2 obtain better wear-resisting property, and the main wear mechanism is adhesive wear. There are four obvious characteristics which are primary running in period, primary steady period, second running in period and second steady period during the friction process of the composites without nano-SiO2. With the increase of the mass fraction of nano-SiO2 in the compounded fillers, the friction process characteristics of the composites present complicated variation law, and main wear mechanisms are characterized by adhesive wear and abrasive wear in varying degrees, and the wear-resisting property of the composites is obviously deteriorated.关键词
超高分子量聚乙烯/纳米氧化硅/纳米蒙脱土/聚四氟乙烯/摩擦磨损性能/复合材料分类
通用工业技术引用本文复制引用
雷毅,郭建良..纳米SiO2填充UHMWPE/PTFE/纳米MMT复合材料的摩擦磨损行为[J].中国石油大学学报（自然科学版）,2011,35(1):115-118,4.基金项目
中国石油天然气集团公司中青年科技创新基金项目(W020311) （W020311）
