PNIPAM微凝胶/PVDF温敏膜的制备及其性能研究  

Preparation and Properties of PNIPAM Microgels/PVDF Thermo-sensitive Membrane

作　　者：李帮凯 王建祖 张成浩 侯小露 李博 陈熙[1,2] Li Bangkai;Wang Jianzu;Zhang Chenghao;Hou Xiaolu;Li Bo;Chen Xi(School of Material Science and Engineering,Tianjin Polytechnic University,Tianjin300387,China;State Key Laboratory of Separation Membranes and Membrane Processes,Tianjin Polytechnic University,Tianjin300387,China)

机构地区：[1]天津工业大学材料科学与工程学院,天津300387 [2]天津工业大学省部共建分离膜与膜过程国家重点实验室,天津300387

出　　处：《山东化工》2019年第7期1-3,6,共4页Shandong Chemical Industry

基　　金：国家自然科学基金资助项目(51803150);天津市教委科研计划项目(2017ZD04)

摘　　要：将自由基聚合法合成的聚N-异丙基丙烯酰胺(PNIPAM)微凝胶和聚偏氟乙烯(PVDF)共混,制备出了具有温度响应性的复合膜。采用FTIR、SEM对PNIPAM微凝胶/PVDF温敏膜的组成及结构进行分析,可以发现PNIPAM微凝胶被成功包裹在PVDF膜孔中,并使膜的孔径增大。PNIPAM微凝胶对温度具有较好的响应性,可以通过改变温度调节微凝胶的溶胀和收缩,进而调控复合膜的水通量。The thermo-sensitive membranes were prepared by blending Poly(N-isopropyl acrylamide)(PNIPAM)microgels synthesized by free radical polymerization with polyvinylidene fluoride(PVDF).FTIR,SEM were used to characterize the element components and structure of PNIPAM microgel/PVDF membranes.It was found that PNIPAM microgels was successfully encapsulated in the membrane pores of PVDF and could increase the pore size.The PNIPAM microgels was more responsive to temperature for their swelling and shrinkage can be adjusted by the temperature,and then the water flux of the thermo-sensitive membrane can be regulated.

关 键 词：PVDF PNIPAM 微凝胶 共混 温敏膜 

分 类 号：TQ051.893[化学工程]