高性能特种弹性体的拓展(四)--氟橡胶(2)

Expansion of High Performance Elastomers(Part 4)-Fluoroelastomer(2)

综述近年来在非轮胎橡胶制品领域拓展应用的具有特殊性能和特种用途、能在苛刻条件下使用的高性能特种弹性体。本综述第4部分介绍氟橡胶的发展历程和分类,详述在通用氟橡胶(1型和2型氟橡胶)基础上拓展的高性能氟橡胶的组成和特性。这些高性能氟橡胶包括高氟含量氟橡胶、过氧化物硫化氟橡胶、耐低温氟醚橡胶(3型氟橡胶)[全氟甲基乙烯基醚(PMVE)基氟醚橡胶和全氟甲氧基甲基乙烯基醚(MOVE)基氟醚橡胶]、耐极端环境全氟醚橡胶、耐碱氟橡胶[四氟乙烯/丙烯二元共聚氟橡胶(四丙氟橡胶)、四氟乙烯/乙烯/PMVE和四氟乙烯/丙烯/偏氟乙烯三元共聚氟橡胶(4型氟橡胶)、四氟乙烯/六氟丙烯/偏氟乙烯/乙烯/PMVE五元共聚氟橡胶(5型氟橡胶)、四氟乙烯/四氟丙烯二元共聚氟橡胶(6型氟橡胶)]。本文报道在高性能氟橡胶领域国内外的研发信息,重点介绍高性能氟橡胶在我国获得的新进展。

Several high performance specialty elastomers with special properties which can be applied in the field of non-tire rubber products and used under harsh environments in recent years are reviewed.Part 4 of this review introduces the developmental history and classification of fluoroelastomers,as well as describes in detail the composition and features of high performance fluoroelastomers derived from typical fluoroelastomers(type 1 and type 2 FKM).These high performance fluoroelastomers include fluoroelastomers with high fluorine content,peroxide curable fluoroelastomers,low temperature resistant fluoroether elastomers(type 3 FKM)[perfluoromethyl vinyl ether(PMVE)and perfluoromethoxy methyl vinylether(MOVE)elastomers],perfluoroether elastomers resistant to extreme environments,baseresistant fluoroelastomers—trifluoroethanol/propylene copolymer(tetrapropylene fluoroelastomer),trifluoroethanol/ethylene/PMVE and trifluoroethanol/propylene/vinylidene chloride terpolymers(type 4 FKM),trifluoroethanol/hexafluoropropylene/vinylidene chloride/ethylene/PMVE pentapolymer(type 5 FKM)and trifluoroethanol/tetrafluoroethylene copolymer(type 6 FKM).This article reports domestic and foreign research and development information in the field of high performance fluoroelastomers,focusing on the recent progress of high performance fluoroelastomers in China.