POROSITY AND PROTEIN ADSORPTION OF 4 POLYMERIC MICROFILTRATION MEMBRANES

被引：32

作者：

PERSSON, KM ^{[1
]}

CAPANNELLI, G ^{[1
]}

BOTTINO, A ^{[1
]}

TRAGARDH, G ^{[1
]}

机构：

[1] UNIV GENOA,INST IND CHEM,I-16132 GENOA,ITALY

来源：

JOURNAL OF MEMBRANE SCIENCE | 1993年 / 76卷 / 01期

关键词：

POROUS AND MICROPOROUS MEMBRANES; POROSIMETRY; LIQUID DISPLACEMENT POROSITY; PROTEIN ADSORPTION;

D O I：

10.1016/0376-7388(93)87005-V

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Four different microfiltration (MF) membranes were analysed with respect to porosity and protein adsorption. Liquid displacement porosity (LDP) and adsorption of C-14-labelled beta-lactoglobulin were used as characterization methods. LDP showed a clear pore size distribution for all membranes analysed, with maximally 10% of the pores having at least 90% of the permeability. The protein adsorption came to equilibrium within 30 minutes, giving decreased permeabilities for all membranes. The permeability loss could not be modelled as a simple membrane pore restriction, but the protein load corresponded to a monolayer of protein adsorbed on and in the membranes.

引用

页码：61 / 71

页数：11

共 13 条

[1] PORE-SIZE AND PORE-SIZE DISTRIBUTION IN MICROFILTRATION MEMBRANES [J].