ULTRAFILTRATION MEMBRANES FROM PVDF PMMA BLENDS

被引：167

作者：

NUNES, SP

PEINEMANN, KV

机构：

[1] GKSS FORSCHUNGSZENTRUM GEESTHACHT GMBH,INST CHEM,MAX PLANCK STR,W-2054 GEESTHACHT,GERMANY

[2] UNIV ESTADUAL CAMPINAS,INST CHEM,BR-13081 CAMPINAS,SP,BRAZIL

来源：

JOURNAL OF MEMBRANE SCIENCE | 1992年 / 73卷 / 01期

关键词：

MEMBRANE PREPARATION AND STRUCTURE; MICROPOROUS AND POROUS MEMBRANES; ULTRAFILTRATION; POLYMER BLENDS;

D O I：

10.1016/0376-7388(92)80183-K

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Asymmetric membranes for ultrafiltration were obtained from PVDF/PMMA blends. Addition of 1% PMMA to the casting solution increases the water permeability 14-fold without loss of retention. Pore size distribution, evaluated by a modified bubble point test, showed a large increase in number of pores with size between 10 and 30 nm. The addition of PMMA also increases the size of finger-like cavities as shown by scanning electron microscopy.

引用

页码：25 / 35

页数：11

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