Compatibility of PVC/EVA blends and the pervaporation of their blend membranes for benzene/cyclohexane mixtures

被引：68

作者：

An, QF

Qian, JW ^{[1
]}

Sun, HB

Wang, LN

Zhang, L

Chen, HL

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Dept Chem Engn, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2003年 / 222卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

compatibility; pervaporation membrane; PVC; EVA; benzene; cyclohexane;

D O I：

10.1016/S0376-7388(03)00260-6

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Binary blends and their blend membranes of poly(vinyl chloride) and low molecular weight ethylene-co-vinyl acetate copolymer with 38 wt.% VA content (PVC/EVA) have been prepared by solution blending. The compatibility of the blends was investigated by viscometry and Fourier transform infrared (FTIR). It was found that the PVC is compatible with the EVA when EVA weight fraction (W-EVA) is less than 0.25 or larger than 0.45. The blend membranes with W-EVA less than or equal to 0.15 have good resistance to benzene/cyclohexane mixtures with benzene content up to 50 wt.% at 30 degreesC. Both degree of swelling and the permeation flux of these blends membranes increase greatly with increasing WEVA from 0 to 0.2. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：113 / 122

页数：10

共 37 条

[21]

QIAN JW, 1997, CHIN J POLYM SCI, V15, P35

[22]

RELICK GS, 1986, J POLYM SCI, V24, P279

[23]

RELICK GS, 1985, POLYM MAT SCI ENG, V52, P331

[24] Pervaporation with chitosan membranes .2. Blend membranes of chitosan and polyacrylic acid and comparison of homogeneous and composite membrane based on polyelectrolyte complexes of chitosan and polyacrylic acid for the separation of ethanol-water mixtures [J].