氟树脂性能与加工应用(续19)  

Performance,Processing and Applications of Fluoro Resins (Continue 19)

作　　者：钱知勉[1] 

机构地区：[1]上海市塑料研究所,上海200090

出　　处：《化工生产与技术》2007年第5期11-14,共4页Chemical Production and Technology

摘　　要：介绍了聚四氟乙烯树脂相对数均分子质量的测试方法——标准密度法和差示扫描量热法,叙述了不同类型、品级和类别的树脂的测试技术条件和试样制备方法,说明了树脂的广义相对密度和热不稳定指数及其相对数均分子质量之间的关系和差异。Test methods of PTFE number average mol weight, standard density method and differential scanning calorimeter method are introduced. Test technical conditions and sample preparation method for different kinds, grades and sorts of the resins are reviewed. Relationship and difference between the broad relative density and thermal instability index and the number average mol weight are illuminated.

关 键 词：聚四氟乙烯树脂 相对数均分子质量 标准密度法 差示扫描量热法 广义相对密度 热不稳定指数 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]