火焰喷涂ETFE涂层的非等温结晶行为  

Behavior of Non-Isothermal Crystallization of Flame Sprayed ETFE Coating

作　　者：李亚东[1] 强克刚[1] 李玉飞[1] 张忠厚[1] 张成贵[1] 

机构地区：[1]郑州轻工业学院河南省表界面科学重点实验室,河南郑州450002

出　　处：《高分子材料科学与工程》2010年第5期100-103,共4页Polymer Materials Science & Engineering

基　　金：河南省高校杰出科研人才创新工程资助项目(2006KYCX007);郑州轻工业学院博士基金(2005年)

摘　　要：采用火焰喷涂技术制备了乙烯-四氟乙烯共聚物(ETFE)涂层。利用红外光谱仪、接触角测定仪、差示扫描量热仪(DSC)等对涂层的结构、表面性能及非等温结晶、熔融行为进行了分析。结果表明,ETFE粉末在火焰喷涂过程中没有发生氧化降解反应,适宜采用火焰喷涂法制备涂层;涂层的结晶动力学分析表明,用Jeziorny法和Mo法处理其非等温结晶过程比较理想。Ethylene tetrafluoroethylene （ETFE） coating was prepared by flame sprayed. The processes of non-isothermal crystallization and the melt behavior of ETFE coating were investigated by differential scanning calorimeter （DSC）. Fourier transform infrared spectroscopy （FT-IR） was used to characterize polymer degradation. The FT-IR analysis did not reveal the presence of any oxidation or degradation during the processing. The Avrami analysis modified by Jeziorny and a new method developed by Mo could describe the non-isothermal crystallization process of ETFE coating very well. The values of Zc （rate parameter）and n （Avrami exponent） increased with increasing cooling rate. The value of F （T） （kinetic parameter） increased,and the values of a had no significant change with increasing degree of crystallinity for ETFE coating,respectively.

关 键 词：火焰喷涂 乙烯-四氟乙烯共聚物 涂层 非等温结晶动力学 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]