HYDROPHILIZATION OF POLYETHYLENE MEMBRANES

被引：11

作者：

DIMOV, A ^{[1
]}

ISLAM, MA ^{[1
]}

机构：

[1] HIGHER INST CHEM TECHNOL,BU-8010 BURGAS,BULGARIA

来源：

JOURNAL OF MEMBRANE SCIENCE | 1990年 / 50卷 / 01期

关键词：

D O I：

10.1016/S0376-7388(00)80889-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Polyethylene microfiltration membranes were hydrophilized by treating them with ternary mixtures of ethanol-water-inorganic acids. It was found that the threshold pressure necessary to initiate water permeation through the polyethylene membranes depends on the composition of hydrophilizing mixture. The membranes hydrophilized by the ternary solutions showed much better initial flux and lower flux decline rate as compared with those hydrophilized with ethanol alone. It was found that the hydrophilizing efficiency of the inorganic acid in the mixture decreases in the order HNO3 > H2SO4 > H3PO4. However, the flux retention efficiency decreases in the reverse sequence. © 1990.

引用

页码：97 / 100

页数：4