半芳香尼龙PA12T 的微波辅助聚合与表征  

Microwave-assisted polymerization and characteristic of semi-aromatic nylon PA12T

作　　者：黄文蕊 黄正强[1] 付鹏[1,2] 崔喆[1,2] 张晓朦 庞新厂[1,2] 赵清香[1,2,3] 刘民英 HUANG Wenrui;HUANG Zhengqiang;FU Peng;CUI Zhe;ZHANG Xiaomeng;PANG Xinchang;ZHAO Qingxiang;LIU Minying(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,Henan,China;Henan Key Laboratory of Advanced Nylon Materials and Application(Zhengzhou University),Zhengzhou 450001,Henan,China;Engineering Laboratory of High Performance Nylon Engineering Plastics of China Petroleum and Chemical Industry,Zhengzhou 450052,Henan,China)

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450001 [2]河南省先进尼龙材料及应用重点实验室(郑州大学),河南郑州450001 [3]中国石油和化工行业高性能尼龙工程塑料工程实验室,河南郑州450052

出　　处：《化工进展》2022年第1期336-342,共7页Chemical Industry and Engineering Progress

基　　金：“十三五”国家重点研发计划(2017YFB0307600);河南省重大科技专项(181100211200)。

摘　　要：半芳香尼龙具有优异的力学强度、耐热性能和耐溶剂性能,在电子电器、汽车、轨道交通、特种装备中具有重要应用,受到了国内外学者和产业界的广泛关注。然而,传统聚合方法存在的制备周期长、分子量分布宽等技术难题长期得不到有效解决。本文利用微波能够使吸波材料快速、均匀升温的特点,首次在微波辅助条件下制备了耐高温半芳香尼龙PA12T,研究了在密闭条件下,以水作为吸波介质,水的用量、反应温度以及反应时间等条件对聚合产物特性黏数的影响,并对产物结构及热性能进行了表征。结果表明,微波辅助聚合与传统聚合方法相比,反应时间缩短三分之一以上,且产物分子量分布较窄,为解决传统半芳香尼龙聚合方法存在的问题进行了有价值的探索。With advanced properties of high-temperature resistant and high strength,semi-aromatic nylon has been widely used in electronic appliances,automobiles,rail transit and special equipments.However,conventional synthesis methods have long-standing technical problems of semi-aromatic nylon with a long preparation cycle and wide molecular weight distribution.In this paper,the rapid and uniform heating under microwave conditions was used for the first time to provide a new solution to these problems though preparing high-temperature resistant semi-aromatic nylon PA12T.The influence of polymerization conditions such as the amount of water used as the wave-absorbing medium,reaction temperature and reaction time on the molecular weight of the polymerized product under a closed system were investigated.The results showed that microwave-assisted polymerization took one third of the time comparing with the traditional method and the product had the narrower molecular weight distribution than conventional polymerization.This method provided a valuable reference for the further study of high efficiency polymerization of semi-aromatic nylon and the design and improvement of microwave reactor.

关 键 词：半芳香尼龙 微波 聚合 热失重 

分 类 号：TQ317[化学工程—高聚物工业]