Pervaporation separation of ethanol-water mixtures using crosslinked blend membranes

被引：4

作者：

Huang, RYM

Shieh, JJ

机构：

[1] Department of Chemical Engineering, University of Waterloo

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1997年 / 32卷 / 17期

基金：

加拿大自然科学与工程研究理事会;

关键词：

crosslinked blend membrane; N-methylol nylon-6; polyacrylic acid; polyvinyl alcohol; pervaporation; ethanol-water mixtures;

D O I：

10.1080/01496399708002221

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Blend membranes prepared from polyacrylic acid/N-methylol nylon-6 and polyvinyl alcohol/N-methylol nylon-6 are crosslinked with multivalent cation (Al3+) and maleic acid, respectively. The resultant membranes exhibit strong plasticization phenomenon for the pervaporation separation of ethanol-water mixtures. Interesting ''permeation enhancement'' is observed for both crosslinked blend membranes. From the comparison between pervaporation and sorption data, it is suggested that, for hydrophilic membranes, sorption property dominates the membrane performance at feed solutions of higher water content, while diffusion property governs the membrane performance at feed solutions of higher ethanol content.

引用

页码：2765 / 2784

页数：20

共 22 条

[1] THE REACTIONS OF N-ALKOXYMETHYL POLYAMIDES [J].