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化工学报  2015 

纳米聚苯胺改性聚哌嗪酰胺纳滤膜的制备

DOI: 10.11949/j.issn.0438-1157.20140919, PP. 142-148

Keywords: 聚苯胺,哌嗪,纳滤膜,界面聚合,粗糙度

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Abstract:

以导电态纳米聚苯胺(PANI)为添加剂,哌嗪和均苯三甲酰氯(TMC)为反应单体,通过界面聚合反应在聚砜超滤膜上形成复合层制备纳滤膜。采用扫描电子显微镜(SEM)和原子力显微镜(AFM)等对复合膜的性能和结构分别进行了测试和表征。SEM照片证实PANI含量低时,可以在复合膜上分布得比较均匀;AFM图像看出膜表面粗糙度的增加;膜性能的测试结果证实了添加PANI的复合膜水通量得到了提高,同时脱盐率也有变化。最优实验条件下,膜对Na2SO4、MgSO4、MgCl2和NaCl的截留率分别为99.4%、98.5%、85.4%和59.2%。试验结果表明,加入PANI能够提高膜的水通量,并提升了膜的脱盐性能。

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