填充聚四氟乙烯复合材料在水润滑条件下的摩擦磨损特性研究

Frication and Wear Performance of Filled PTFE Composite and Stainless Steel under Water Lubrication

采用MPX-200型摩擦磨损试验机研究了水润滑条件下不同含量的炭纤维、二硫化钼和三氧化二铝填充聚四氟乙烯复合材料与不锈钢配副时的摩擦磨损性能,通过方差和极差分析方法对材料的耐磨性进行研究,并利用原子力显微镜观察分析磨损表面及其磨屑形貌.结果表明:采用模压法制备填充聚四氟乙烯复合材料是可行的,在水润滑条件下复合材料具有优良的摩擦磨损性能,其C∶MoS2∶Al2O3∶PTFE合适的配比为5∶5∶5∶85或15∶10∶5∶70.

Tribological behavior of filled PTFE composite containing Carbon Fiber, MoS2 , Al2 O3 with different volume percentage were prepared on an MPX-200 test rig under water lubrication. The worn surface was observed and analyzed by Dimension 3100 Atomic Force microscopy. Results show that carbon fiber/MoS2/Al2O3/PTFE composite prepared by mold pressing method exhibited excellent friction and wear resistance under water lubrication condition, the optimized volume ratio of Carbon Fiber, MoS2 , Al2O3, PTFE was 5： 5： 5： 85 or 15： 10： 5： 70.