PTT的结构与性能研究  

Study on structure and properties of PTT

作　　者：王加成[1] 秦志忠[1] 秦传香[1] 

机构地区：[1]苏州大学材料学院,江苏苏州215021

出　　处：《合成纤维工业》2004年第2期15-16,共2页China Synthetic Fiber Industry

摘　　要：利用SEM ,DSC及X射线衍射方法 ,比较了PTT ,PET切片的结构与流变性能。结果表明 :与PET相比 ,PTT的断裂表现为韧性断裂 ,玻璃化温度和熔点较低 ,结晶度高 ,晶粒尺寸大 ,流动活化能小。The structures and rheological behaviors of PTT and PET chips were analyzed and compared by SEM,DSC and X ray diffractometry. The results showed that PTT fiber exhibited ductile fracture,lower glass transition temperature and melting point,higher crystallinity,greater crystal size and lower flow-activation energy,as compared with PET.

关 键 词：PTT纤维 X射线衍射技术 结晶度 聚对苯二甲酸丙二醇酯 流变性能 晶粒 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]