文献类型：期刊文献

中文题名：聚亚苯基苯并二噻唑纤维力学性能影响因素的研究

英文题名：Study of the Effects on the Mechanical Properties of PBZT Fiber

作者：吴平平[1];陆志豹[1];钟华[1];韩哲文[1]

机构：[1]华东理工大学高分子材料科学工程系

年份：1997

卷号：10

期号：4

起止页码：480

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：PBZT纤维;力学性能;二噻唑;聚亚苯基苯并

外文关键词：Poly(phenylene benzobisthiazole), Mechanical property, Heat treatment

摘要：研究了聚亚苯基苯并二噻唑分子量、纺丝工艺、热处理温度、时间、负荷等工艺条件对纤维力学性能的影响。结果表明分子量３０，０００左右的ＰＢＺＴ纤维经５００～５５０℃、负荷４１０ＭＰａ、热处理１２ｓ，得到的纤维力学性能最优（抗张强度为２．２９ＧＰａ，模量近３．５０ＧＰａ）。纤维的直径越细、越均匀，力学性能越好。
Poly(p-phenylenebenzothiazole)(PBZT), with wholly aromatic, rigid extended chain, exhibits ultra-hign strength, ultra-high modulus and excellent thermal-oxide and environmental stability. It can be used as the structure materials in aviation and other special cases. The polymers with different molecular weight have been synthesized and the PBZT fibers were processed by dry jet wet spinning technique at liquid crystal phase. The effects on the mechanical properties of PBZT fiber, such as molecular weight of the polymer, the diameter of fibers, the temperature, duration time and loading tension of heat treatment were studied. The mechanical properties of PBZT fiber would show the best when the molecular weight is about 30,000 and the heat treatment at 500℃, 12s and loading tension about 410MPa. The finner the diameter of the fibers, the higher the mechanical properties of PBZT fiber.