四氟乙烯基可熔融加工全氟聚合物研究进展

PTFE

四氟乙烯基可熔融加工全氟聚合物研究进展
刘海辉 张兴祥 王宁天津工业大学功能纤维研究所改性与功能纤维天津市重点实验室,天津300160

摘　要:聚四氟乙烯（PTFE）因具有独特的物理化学性质,已成为不可缺少的一类特种材料。由于聚四氟乙烯的分子量和分子链规整度较高,使聚四氟乙烯难于熔融加工。为了获得可熔融加工的全氟材料,国内外关于聚四氟乙烯共聚改性的相关研究和报道较多。本文从可熔融加工四氟乙烯基全氟聚合物的结构和特性方面入手,综述了国内外一系列四氟乙烯与全氟第二单体共聚物的最新研究现状,并提出了全氟聚合物今后的研究发展方向。[著者文摘]

关键词:共聚 熔融加工 聚四氟乙烯（PTFE） 全氟乙丙烯（FEP） 全氟烷基乙烯基醚（FVE）
分类号:　TQ325.4 TQ633[著者标引]文献标识码：文章编号：栏目信息：综述与专论
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Advances in melt processing perfluorinated polymers base on tetrafluoroethyleneLiu Haihui Zhang Xingxiang Wang Ning Tianjin Polytechnic University, Institute of Functional Fibers, Tianjin Municipal Key Lab of Fiber Modification and Functional Fiber, Tianjin 300160Abstractolytetrafluoroethylene （PTFE） is an essential peculiar material because of its particular physico-chemi- cal properties. However, some inevitable drawbacks, such as high melting point, high molecular weight and high degree of crystallinity limit the application of PTFE in some special fields. In order to improve the melt processing property of per- fluorinated polymer, scholars came from all over the world have pay many attentions to the copolymers of PTFE. The effect of different perfluorinated second monomer on the structure and characteristics of perfluorinated polymers from the last researches. Moreover, the future research and development direction of perfluorinated polymers was also proposed.[著者文摘]

Key words:copolymerization, melt processing, poly-tetrafluoroethylene （PTFE）, fluorinated ethylene propylene （FEP）, perfluoroalkyl vinyl ether （FVE）