摘要
采用高强纤维与聚四氟乙烯纤维混编织物增强树脂制成自润滑复合材料,在重载摩擦工况下进行了摩擦试验,研究了不同的高强纤维、基体树脂对表面温度、应力、摩擦因数及压缩强度的影响,并对自润滑复合材料的"PTFE转移润滑膜"的减摩机理进行了分析。结果表明,重载条件下织物A/改性酚醛树脂综合性能优异,摩擦过程中摩擦表面形成"PTFE转移润滑膜",摩擦因数达到0.018。
The self-lubricating composites which were made up of enhanced resins and blend fabric woven by high strength fiber and PTFE fiber were investigated.Moreover,wear experiments were carried out by using specimens made of the composites at high loads.The influence of surface temperature,stress,frictional coefficient and compressing properties in terms of different kinds of high strength fibers and resins was also studied.In addition,the mechanism of reducing friction coefficient was analysed because of ＂PTFE transferd lubricating films of the composites＂.The results showed that the comprehensive properties of the composites made by blend fabric A and modified phenolic resin were excellent,and the films were found on the surface of the composies in the course of the friction at high loads.The friction coefficient arrived at 0.018 eventually.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2011年第4期67-71,共5页
Aerospace Materials & Technology
关键词
重载
摩擦试验
自润滑复合材料
聚四氟乙烯
High loads
Frictional experiments
Self-lubricating composites
PTFE
