文献类型：期刊文献

中文题名：聚三唑树脂的催化固化及其复合材料制备与性能

英文题名：PREPARATION AND PROPERTIES OF CARBON FIBERS REINFORCED PTA COMPOSITES UNDER CATALYTIC CURING PROCESS

作者：许建文[1];万里强[1];张存超[1];郭冰[1];黄发荣[1]

机构：[1]华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237

年份：2014

期号：8

起止页码：35

中文期刊名：玻璃钢/复合材料

外文期刊名：Fiber Reinforced Plastics/Composites

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金：上海市重点学科资助(B502)

语种：中文

中文关键词：聚三唑树脂;催化剂;低温固化;成型工艺优化

外文关键词：polytriazole resin;catalyst;low temperature curing;molding process optimum

摘要：为了降低固化温度,简化固化工艺,在聚三唑树脂(PTA)体系中加入三苯基磷溴化亚铜作为催化剂,根据催化剂的用量与凝胶时间的关系,确定催化剂用量为最少单体摩尔量的3‰。在催化条件下,按照50℃/6h+100℃/2h+150℃/2h的固化程序模压制备复合材料(C-PTA/T300B),研究了催化剂对复合材料玻璃化转变温度(Tg)、热稳定性(Td5)和力学性能的影响。结果表明,与未催化复合材料(PTA/T300B)相比,在力学性能保持不变的前提下,C-PTA-T300B复合材料的固化温度降低了30℃,后处理工艺得到极大简化;Tg提高了21℃;空气中Td5提高了10℃,氮气中Td5提高了5℃。
To reduce the curing temperature and simplify the curing process,bromotris(triphenylphosphine)copper(Ⅰ)was added into the polytriazole resin system(PTA)as the catalyst.According to the relationship between the amount of catalyst and the gel time of PTA,the amount of catalyst was determined to be as 3‰of the least molar amount of the monomer.Under catalytic conditions,PTA composites reinforced by T300B carbon fiber(C-PTA/T300B)were prepared in the curing process of 50℃/6h+100℃/2h+150℃/2h.The influences of catalyst to the glass transition temperature(Tg),5%-weight-loss temperature(Td5)and mechanical properties of CPTA/T300B composites were studied.Compared with the non-catalytic PTA composites reinforced by T300B carbon fiber(PTA/T300B),the results showed that to aehieve same mechanical properties,the curing temperature of CPTA-T300B composites decreased 30℃,which greatly simplifies the after-treatment process.Moreover,the Tg was 21℃enhanced,and the Td5 was 21℃and 5℃promoted in air and N2 environment,respectively.