单轴取向乙烯-三氟氯乙烯共聚物纤维结晶结构与性能表征  

Crystalline Structures and Properties of Uniaxial Oriented Poly(ethylene chlorotrifluoroethylene)Fiber

作　　者：潘健[1] 肖长发[1] 赵健[1] 黄庆林[1] 任倩[1] 

机构地区：[1]天津工业大学省部共建分离膜与膜过程国家重点实验室,天津300387

出　　处：《材料工程》2016年第7期73-77,共5页Journal of Materials Engineering

基　　金：国家重点基础研究发展计划(2012CB722706)

摘　　要：以乙烯-三氟氯乙烯共聚物(ECTFE)为成纤聚合物,采用熔融纺丝技术制备了单轴取向ECTFE纤维,借助X射线衍射仪(XRD)、差示扫描量热仪(DSC)、力学性能测试、蠕变性能测试等分析了所得纤维的结晶结构、热性能、力学性能和抗蠕变性能等。结果表明:单轴取向ECTFE纤维具有良好的结晶性能,结晶属六方晶系,结晶取向度约90%;纤维力学性能、耐热性、抗蠕变性以及耐化学试剂性能优异。Uniaxial oriented poly（ethylene chlorotrifluoroethylene）（ECTFE）fibers were prepared by the melt spinning method using ECTFE resin as the fiber-forming polymer.The crystal structures,thermal and mechanical properties and creep resistance of the prepared fibers were analyzed by X-ray diffraction（XRD）,differential scanning calorimetry（DSC）,mechanical and creep performance testing,etc.Results show that,the uniaxial oriented ECTFE fibers have favourable crystallization property.Their crystalline structures belong to hexagonal system,the degree of crystalline orientation is about 90%.The uniaxial oriented ECTFE fibers have excellent mechanical properties,thermostability,creep resistance and chemical corrosion resistance（such as acid,alkali,strong oxidizing reagents,organic reagents,etc）.

关 键 词：乙烯-三氟氯乙烯共聚物 单轴取向 结晶结构 力学性能 耐化学试剂性 

分 类 号：TQ342.71[化学工程—化纤工业]