宇航材料工艺2017，Vol.47Issue(4)：31-36,6.DOI:10.12044/j.issn.1007-2330.2017.04.007
石墨含量对PEEK基复合涂层性能的影响
Effect of Graphite Content on Properties of PEEK Composite Coatings
摘要
Abstract
In this paper,polyetheretherketone is modified by graphite and polytetrafluoroethylene.The PEEK composite coatings with different graphite mass fraction are prepared on the surface of stainless steel by cold pressing sintering method controling the mass ratio of polytetrafluoroethylene and polyether ether ketone unchanged.The results show that the crystallinity of the PEEK composite coating decreases gradually,the hardness of the coating firstly increases and then decreases,the friction coefficient of the composite coating decreases,the wear rate decreases first and then increases with the increase of the graphite mass fraction.When the mass fraction of graphite is 4％,the hardness is the highest (21.78HV),the friction coefficient is 0.0461,the lowest wear rate is 2.06× 10-6 mm3/(N·m).The wear resistance of the coatings significantly increase compared to the previous study.However,the high graphite mass fraction will decrease the flexibility of molecular chain.The segment movement is declined.The wear resistance of the coating is greatly reduced.关键词
PEEK/石墨/PTFE/复合涂层/冷压烧结Key words
Polyetheretherketone/Graphite/Polytetrafluoroethylene/Composite coatings/Cold pressing sintering method分类
化学化工引用本文复制引用
王哲,杨立军,王涛,王蕊,张佳..石墨含量对PEEK基复合涂层性能的影响[J].宇航材料工艺,2017,47(4):31-36,6.基金项目
国家自然科学基金项目(50972086) （50972086）
陕西省教育厅产业化中试项目(2011TG24) （2011TG24）
