低磨耗自润滑新型氟塑料合金的研制  

Preparation of New Wear-Resistant and Self-LubricatingPTFE/LCP Composites

作　　者：黄淑辉[1] 赵安赤[1] 

机构地区：[1]清华大学化学工程系高分子材料研究所

出　　处：《中国塑料》1995年第6期26-33,共8页China Plastics

摘　　要：本文报导了采用性能优异的液晶高分子（ＬＣＰ）与ＰＴＦＥ进行共混，通过常规的模压烧结工艺制备ＰＴＦＥ／ＬＣＰ１和ＰＴＦＥ／ＬＣＰ２两种合金，并详细研究其组成（ＬＣＰ含量）、ＬＣＰ粒径、第三组份石墨等诸因素及加工工艺（烧结温度）对合金性能的影响，以及在实验条件下的最佳工艺条件。实验结果表明，在ＬＣＰ含量为１０ｗｔ％的情况下，ＰＴＦＥ／ＬＣＰ合金与纯ＰＴＦＥ相比，其耐磨性能可提高近１００倍，并高于国外专利报导的同种合金的耐磨性能。This paper discribes the preparation of two types fo composites from liquidcrystal polymers(LCP)and polytetrafluroethylene(PTFE) by blent and conventional compression-sintering, and studies on effects of many factors, such as LCP content, LCP particle size, graphite content, etc, and processing technology (sintering temperature) on the properties of composites and the optimum technological parameters under experimental conditions. The experimental results showthat the wear-resistance of PTFE/LCP composites with 10 wt% LCP is about100 times higher than that of pure PTFE.Moreover,the wear-resistance ishigher than that of the same composite reported by a foreign patent.

关 键 词：复合材料 模压烧结 聚四氟乙烯 液晶高分子 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]