不同结构两性离子聚酰亚胺超滤膜的性能研究  

Ultrafiltration Membrane Performance Study of the Zwitterionic Polyimides with Different Chemical Structures

作　　者：马超[1] 黄海涛[1] 杨帅[1] 刘心蕊[1] 顾继友[1] 刘旸[1] 

机构地区：[1]东北林业大学材料科学与工程学院,哈尔滨150040

出　　处：《材料导报（纳米与新材料专辑）》2016年第2期323-327,共5页

基　　金：黑龙江省青年科学基金(QC2014C044);高等学校博士学科点专项科研基金(新教师)(201300621120001);中国博士后科学基金面上资助(2013M530143)

摘　　要：利用相转化工艺制备了两类化学结构不同的两性离子聚酰亚胺超滤膜,并分别使用扫描电子显微镜和接触角测量仪表征了两种膜的断面形貌和表面亲疏水性。通过多次循环超滤实验显示,这两类两性离子聚酰亚胺超滤膜的抗污染能力明显优于参比的聚酰亚胺超滤膜,特别是不可逆污染明显减少,实现了超滤膜的稳定运行。Two types of zwitterionic polyimide （PI） ultrafiltration membrane with different chemical structures were prepared by the conventional immersion precipitation phase inversion method. The cross-section morphologies and surface hydrophilicities of the obtained membranes were thoroughly characterized by scanning electron microscopy and water contact angle measurements, respectively. The cycle ultrafiltration experiment for protein solution revealed that nonspecific protein adsorption, especially irreversible protein adsorption, for the zwitterionie PI membranes was significantly reduced, suggesting superior antifouiing performance.

关 键 词：两性离子 聚酰亚胺 超滤膜 抗污染 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]