聚芳酰胺多孔膜的制备及其介电性能研究  

Preparation of Porous Aromatic Polyamide Membranes and Their Dielectric Properties

作　　者：朱欢欢 牛铭康 黄桂明 王群 梁知权 矫庆泽 冯彩虹 赵芸 吕玉珍[2] ZHU Huanhuan;NIU Mingkang;HUANG Guiming;WANG Qun;LIANG Zhiquan;JIAO Qingze;FENG Caihong;ZHAO Yun;LÜYuzhen(Shool of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University, Beijing 102206, China;Zhuhai RONSENG Super Micro-Wire Co., Ltd., Zhuhai, Guangdong 519040, China;College of Materials and the Environment, Beijing Institute of Technology, Zhuhai, Zhuhai, Guangdong 519085, China)

机构地区：[1]北京理工大学化学与化工学院,北京100081 [2]华北电力大学新能源电力系统国家重点实验室,北京102206 [3]珠海蓉胜超微线材有限公司,广东珠海519040 [4]北京理工大学珠海学院材料与环境学院,广东珠海519085

出　　处：《北京理工大学学报》2021年第10期1114-1119,共6页Transactions of Beijing Institute of Technology

基　　金：珠海市产业核心和关键技术攻关方向资助项目(ZH01084702180005HJL).

摘　　要：以间苯二胺和间苯二甲酰氯为单体,2-甲基吡啶为缚酸剂,N,N-二甲基乙酰胺为溶剂,用低温溶液缩聚法合成了间位聚芳酰胺(PMIA);然后以乙醇为非溶剂,用非溶剂致相分离法成功制备了不同孔结构的聚芳酰胺多孔膜.采用核磁及红外等手段对所合成聚芳酰胺的结构进行了表征,考察了聚芳酰胺溶液浓度对多孔膜孔结构及介电性能的影响.结果表明:当聚芳酰胺的浓度为21%,17%和15%时,都可以得到孔结构规整的多孔膜,它们在1 MHz频率的介电常数分别为2.31,2.07和1.89,与聚芳酰胺标准膜的介电常数6.22相比分别降低了63%,67%和70%.Poly m-phenylene isophth alamide(PMIA)was synthesized using m-phenylenediamine and isophthaloyl chloride as monomers,2-methylpyridine as acid binding agent by the low-temperature solution polymerization in N,N-dimethylacetamide(DMAc).Porous PMIA membranes with different pore structures were then prepared by non-solvent induced phase separation,and ethanol was used as non-solvent coagulation bath.The structures of PMIA were characterized by Fourier transform infrared and 1H-nuclear magnetic resonance.The influence of polymer concentration on the pore structure and dielectric constant of the porous PMIA membrane was studied.Results show that when the concentration of PMIA is 21%,17%and 15%,porous membranes with regular pore morphologies can all be obtained.Their dielectric constants are 2.31,2.07 and 1.89 respectively at 1 MHz,decreased by 63%,67%and 70%than 6.22 of PMIA standard membrane.

关 键 词：间位聚芳酰胺 多孔膜 非溶剂致相分离法 介电常数 

分 类 号：TM215.3[一般工业技术—材料科学与工程]