PET/LCP共混体系可纺性及其初生纤维结构  

SPINNABILITY OF PET/LCP SYSTEM AND STRUCTURE OF UNDRAWN YARN

作　　者：周崇福[1] 马敬红[1] 梁伯润[1] 

机构地区：[1]东华大学材料学院,上海200051

出　　处：《合成纤维工业》2001年第3期14-17,共4页China Synthetic Fiber Industry

基　　金：国家自然科学基金资助项目 !(批准号2 97740 2 3 )

摘　　要：通过在 PET和热致性液晶高聚物 (TL CP)共混体系中加入扩链剂双 (2 -　唑啉 ) (BOZ)进行反应性共混纺丝 ,并对初生纤维的结构与性能进行了表征。发现由于扩链剂的作用 ,在 PET与 LCP之间的扩链反应生成部分具有嵌段结构的共聚酯 ,改善了体系的相容性和界面粘结性能 ,提高初生纤维的强度 ,但初生纤维的取向度降低 ,模量和伸长也降低。Reaction spinning of the blend system of PET and TCLP was carried out with the exist of chain extender BOZ.The structure and properties of the undrawn yarn was characterized. Adding the chain extender, the reaction between PET and LCP yielded a copolymer with partly block structure.The compatibility and interfacial adhesion properties of this system were improved. The tenacity of undrawn yarn was increased. The orientation degree, modulus and strength were decreased. The crystal properties remained unchanged.

关 键 词：聚酯纤维 热致性液晶高聚物 聚对苯二甲酸二乙酯 双(2-E唑啉) 相容性 共混纺丝 初生纤维 

分 类 号：TQ340[化学工程—化纤工业]