液晶微纤原位增强PTFE复合材料抗磨性能与磨损机理

将热致型液晶与ＰＴＦＥ混合，用模压烧结法制备出新型原位复合材料，摩擦磨损试验结果表明该复合材料具有优良的抗磨性能，研究表明：液晶在ＰＴＦＥ中以微纤形态存在，能很好地起到承载作用，并有利于偶件表面薄而瓣转移膜的形成，从而改善复合材料的摩擦学性能并减轻偶件表面的损伤，液晶含量较低时，复合材料的磨损机理主要为擦伤与粘着，液晶含量较高时，其磨损机理主要为疲劳剥落。

An Investigation of the Anti wear Behavior and Wear Mechanisms of TLCP in situ Reinforced Polytetrafluoroethylene Composite

The anti wear behavior and wear mechanisms of in situ PTFE/TLCP composites were studied. The experimental results show that TLCP in in situ PTFE/TLCP composite exists in a state of fibrils. This helps to increase the load carrying capacity of the composite and speed up the formation of a thin and uniform transfer film on the counterpart surface, thus to improve the tribological properties of the composite and abate the damage of the counterpart surface. At a relatively lower content of TLCP, the wear of PTFE/TLCP composite is characteristic of scuffing and adhesion, while at higher content of TLCP,it is dominated by fatigue delamination.