聚对苯二甲酰对苯二胺三元共聚物溶液的流变性  

Rheological Property of PPTA Copolymer Solution

作　　者：曹煜彤[1,2] 戴信飞[1,2] 胡祖明[1,2] 刘兆峰[1,2] 

机构地区：[1]东华大学材料科学与工程学院 [2]东华大学纤维材料国家改性重点实验室,上海201620

出　　处：《东华大学学报（自然科学版）》2008年第5期545-548,共4页Journal of Donghua University(Natural Science)

摘　　要：将对苯二胺、对苯二甲酰氯及4,4′二氨基二苯醚(ODA)在极性有机溶剂体系中进行低温缩聚,得到了聚对苯二甲酰对苯二胺(PPTA)三元共聚物溶液.研究了溶液中共聚物质量分数、温度、CaCl2质量分数、共聚物的比浓对数黏度和ODA的摩尔分数对PPTA三元共聚物溶液的非牛顿指数、黏流活化能、结构黏度指数等重要参数的影响,为纺丝工艺的制定提供重要依据.A copolymer solution of poly（p-phenylene diamine terephthalamide） low-temperature polycondensation from p-phenylenediamine, terephthalyl （PPTA） was prepared by chloride and 4, 4＇ - diaminodiphenylether （ODA） in polar organic solvent system. The rheological property of PPTA copolymer solution was studied. Effect of temperature, weight concentration of CaCl2, inherent viscosity of copolymer and mole fraction of ODA on the parameters of copolymer solution, Non-Newton exponent, viscous activation energy and structural viscosity index, what played important roles in setting down the spinning process, were discussed.

关 键 词：聚对苯二甲酰对苯二胺(PPTA)共聚物溶液 流变性 非牛顿指数 黏流活化能 结构黏度指数 

分 类 号：TQ342.722[化学工程—化纤工业]