摘要
本工作通过摩擦过程中聚醚醚酮（ＰＥＥＫ）结构（包括材料与磨屑结构）的变化研究了ＰＥＥＫ的摩擦磨损机理。结果表明，低负载下，材料的摩擦表面不熔融，但表层的凝聚态结构发生了变化，摩擦状态不变，磨损是由于摩擦对偶的连续作用下产生疲劳而脱落。高负载下，材料表面熔融并发生氧化交联，摩擦状态改变，材料外形结构与内层凝集态结构发生变化，磨损是熔融了的表面层粘附于对偶上经进一步的交联反应后，受剪切力作用而脱落。材料在摩擦磨损过程中的表面状态决定了其摩擦磨损机理，并导致了材料摩擦磨损行为对负载的特殊依赖性。
Based on the friction and wear behavior of poly(ether etherketone)(PEEK),its structure characteristics including the bulk one and the debris which results from theprocess of the friction and wear rate were studied to reveal the mechanism, The loaddependence of the friction coefficient and wear rate in the high-load region was found to bedifferent from that in the high one. It has been shown that the friction surficial layer ofPEEK bulk experiences a change in solid structure but remains unmelted, and wear is due toits fatigue fracture during the friction when the load is low, However, the Lqurficial layer is inamelted state and crosslinking takes place in it when the load is high. At this time , thefriction surface increases and the wear is related to the adhesion transfer of PEEK into thesteel wheel.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1995年第4期49-54,共6页
Acta Materiae Compositae Sinica
基金
国家自然科学基金与国家教委跨世纪优秀人才专项基金资助项目
关键词
聚醚醚酮
摩擦
磨损
polyetheretberketone,friction and wear
