Characterisation of the solvent stability of polymeric nanofiltration membranes by measurement of contact angles and swelling

被引：85

作者：

Geens, J ^{[1
]}

Van der Bruggen, B ^{[1
]}

Vandecasteele, C ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Chem Engn, Lab Appl Phys Chem & Environm Technol, B-3001 Heverlee, Belgium

来源：

CHEMICAL ENGINEERING SCIENCE | 2004年 / 59卷 / 05期

关键词：

nanofiltration; solvent stability; contact angle; swelling;

D O I：

10.1016/j.ces.2004.01.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This communication describes contact angle and swelling measurements for different (commercially available) polymeric nanofiltration membranes. Contact angle measurements and surface tension calculations on new and solvent-treated membranes confirm that organic solvents change the hydrophilicity of polymeric membrane surfaces, leading to different water permeability before and after solvent treatment. Swelling measurements confirm the assumption that a reorganisation of the membrane material takes place, leading to differences in porosity and changes in rejection. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1161 / 1164

页数：4

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