Cellulose acetate (CA)/polyvinylpyrrolidone (PVP) blend asymmetric membranes: Preparation, morphology and performance

被引：203

作者：

Saljoughi, Ehsan ^{[1
]}

Mohammadi, Toraj ^{[1
]}

机构：

[1] IUST, Dept Chem Engn, Res Ctr Membrane Separat Proc, Tehran, Iran

来源：

DESALINATION | 2009年 / 249卷 / 02期

关键词：

Membrane preparation; Phase inversion; Cellulose acetate; PVP; Coagulation bath temperature; Macrovoids; Contact angle measurement; ULTRAFILTRATION MEMBRANES; POLYSULFONE SOLUTION; POLYMERIC ADDITIVES; PHASE; PERMEABILITY; KINETICS;

D O I：

10.1016/j.desal.2008.12.066

中图分类号：

TQ [化学工业];

学科分类号：

081705 [工业催化];

摘要：

Cellulose acetate (CA) membranes are widely used for reverse osmosis (RO) and ultrafiltration (UF) applications. In this study, asymmetric CA membranes were synthesized using phase inversion method. CA with molecular weight of 52,000. polyvinylpyrrolidone (PVP) with molecular weight of 15,000 and 1-methyl-2-pyrrolidone (NMP) were used as polymer, additive and solvent, respectively. The effects of PVP concentration (at 0, 3 and 6 wt.%) and coagulation bath temperature (CBT at 0, 25 and 50 degrees C) on morphology, contact angle and permeability of the prepared membranes were studied and discussed. It was found out that the effects of PVP concentration and CBT depend on their values. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：850 / 854

页数：5

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