液晶芳香族聚苯唑纤维的性能  

PROPERTIES OF LIQUID CRYSTALLINE AROMATIC POLYBENZAZOLES FIBERS

作　　者：黄美荣[1,2] 李新贵[1,2] 王琳[1,2] 

机构地区：[1]同济大学高分子材料系 [2]江西省环境监测中心站

出　　处：《合成纤维工业》1999年第3期33-37,共5页China Synthetic Fiber Industry

基　　金：国家自然科学青年基金;上海市青年科技启明计划资助

摘　　要：论述了液晶态芳香族聚苯唑的干喷湿纺纤维的纺丝工艺条件、热处理条件等对其力学性能的影响，并提出了几种有效的改善其抗压力学性能的途径，指出多数芳香族聚苯唑纤维的抗张强度高于３．１ＧＰａ，抗张模量高于２００ＧＰａ，其中以聚对苯撑苯并二唑纤维性能最佳，其最高抗张强度和抗张模量分别可达６．The effects of spinning processing conditions and heat treatment on the mechanical property of dry\|jet wet\|spinning fibers from liquid crystalline solution of aromatic polybenzazoles were discussed based on a great deal of data. Several effective approaches of enhancing compressive mechanical property of the fibers were proposed. It was suggested that most of polybenzazole fibers have tensile strength higher than 3.1 GPa and tensile modulus higher than 200 GPa. Among the fibers, poly(p\|phenylene benzobisoxazole) fiber shows the highest fiber performance. The maximum tensile strength and modulus reach 6.9 GPa and 380 GPa respectively.

关 键 词：液晶 杂环聚合物 聚苯唑纤维 芳香族 

分 类 号：TQ342.739[化学工程—化纤工业]