膜科学与技术

聚醚砜蜂窝状多孔膜的研究

作者：李林英，李若斓，张丽娟，林立刚

单位：（1.内蒙古化工职业学院化工系，内蒙古呼和浩特 010070 2.省部共建分离膜与膜过程国家重点实验室天津工业大学，天津 300387）

关键词：聚醚砜；蜂窝状孔结构

出版年,卷(期):页码： 2017,37(1):87-91

摘要：

以聚醚砜为材料通过水蒸汽辅助法制备蜂窝状多孔膜，利用扫描电镜( SEM) 观察膜表面形貌特征。研究溶剂、溶液浓度和湿度等因素对形成多孔膜结构的影响。通过控制溶液浓度、湿度等因素来控制膜的表面形貌及其所成蜂窝状孔的大小。实验结果表明，高湿度环境和具有一定浓度的聚合物溶液是制备蜂窝状多孔膜的必要条件。溶剂的挥发性是形成规整蜂窝状孔结构的关键因素，最佳的形成蜂窝状多孔膜的条件为溶剂CH2Cl2，湿度93.5% RH，浓度质量分数为2 % ，注射量为60μL。

The ordered honeycomb-patterned polyether sulfone (PES) porous membranes were fabricated by the “Breath figures” (BFs) method, microstructure of the membranes were characterized by SEM。The microstructure of membrane surface and the size of the pore can be controlled by concentration, and humidity and so on. The experimental results show that high humidity and proper polymer concentration are essential to fabricate honeycomb patterned films. The key role of forming honeycomb pattern is evaporation of solvent. When the solvent, humidity, concentration, injection are CH2Cl2 , 93.5% RH,2 wt %,60μL respectively, honeycomb pattern will be the best.

第一作者简介：李林英 (1975- ），女，籍贯山西省阳泉市平定县，硕士，实验师，主要研究方向：化学工程及膜材料的研究与开发，E-mail：lly018@163.com

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