PROPERTIES OF MICROFILTRATION MEMBRANES - COMPUTER AUTOMATED-DETERMINATION OF THE ELECTROKINETIC PROPERTIES OF POLYCARBONATE MEMBRANES

被引：27

作者：

BOWEN, WR

COOKE, RJ

机构：

[1] Colloid and Interface Group, Department of Chemical Engineering, University of Wales, Swansea

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1991年 / 141卷 / 01期

关键词：

D O I：

10.1016/0021-9797(91)90323-Z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrokinetic properties of polycarbonate capillary pore membranes have been studied as a function of pore size and pH using a computer automated electro-osmotic technique. The interpretation of the experimental data using existing theories for electro-osmotic flow was complicated by two factors: apparent variations in the surface properties of pore walls for membranes of different pore radii, and the observation of maxima in the profiles of the magnitude of zeta-potential against pH. The former are not inconsistent with the membrane manufacturing conditions. The overall electrokinetic behavior is consistent with a surface protonation reaction and specific adsorption of chloride ions. © 1991.

引用

页码：280 / 287

页数：8

共 18 条

[1] MOLECULAR-ORIENTATION OF AQUEOUS SURFACTANTS ON A HYDROPHOBIC SOLID [J].