聚对苯二甲酸丙二酯熔纺纤维的结构与性能  

STRUCTURE AND PROPERTIES OF HIGH-SPEED MELT-SPUN POLY(TRIMETHYLENE TEREPHTHALATE) FIBERS

作　　者：吴轶群[1] 吴刚[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《合成纤维工业》2001年第3期18-21,共4页China Synthetic Fiber Industry

基　　金：国家自然科学基金资助项目 !(5 9873 0 0 3 ) ;中国石化集团公司资助项目 !(X5 990 17)

摘　　要：在 0 .5～ 8.0 km / min的纺丝速度下制备了聚对苯二甲酸丙二酯 (PTT)纤维 ,以 X射线衍射、密度、双折射、DSC、力学测定等手段测试了不同纺丝速度所得 PTT初生纤维的结构、热学及力学性能。结果表明 :随纺丝速度的升高 ,PTT纤维的取向和结晶增加 ,断裂伸长率降低 。PTT fiber samples were melt\|spun in a wide take\|up velocity range between 0.5 and 8.0 km/min. The effects of take\|up velocity on the structure and properties of PTT fiber were studied using WAXS, DSC, birefringence and tensile measurements. The results showed that the higher the take\|up velocity, the higher the orientation and crystalline degree, the lower elongation at break, and the better mechanical properties can be achieved.

关 键 词：聚对苯二甲酸丙二醛 熔融纺丝 结构 性能 PTT纤维 

分 类 号：TQ342[化学工程—化纤工业]