VTOS Cross-Linked PDMS Membranes for Recovery of Ethanol from Aqueous Solution by Pervaporation | Zendy

Jin Gu | Zendy; Yunxiang Bai | Zendy; Lin Zhang | Zendy; Lirong Deng | Zendy; Chunfang Zhang | Zendy; Yuping Sun | Zendy; HuanLin Chen | Zendy

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VTOS Cross-Linked PDMS Membranes for Recovery of Ethanol from Aqueous Solution by Pervaporation

Author(s) -

Jin Gu,

Yunxiang Bai,

Lin Zhang,

Lirong Deng,

Chunfang Zhang,

Yuping Sun,

HuanLin Chen

Publication year - 2013

Publication title -

international journal of polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.399

H-Index - 33

eISSN - 1687-9430

pISSN - 1687-9422

DOI - 10.1155/2013/529474

Subject(s) - pervaporation , membrane , polyacrylonitrile , vinyltriethoxysilane , materials science , chemical engineering , ethanol , aqueous solution , polydimethylsiloxane , polymer chemistry , chromatography , chemistry , permeation , composite material , organic chemistry , polymer , biochemistry , silane , engineering

PDMS membranes were prepared by cross-linking with vinyltriethoxysilane (VTOS) on polyacrylonitrile (PAN) substrate to increase hydrophobicity and improve pervaporation (PV) performance. It was shown that the membranes had high ethanol permselectivity and flux. The effects of cross-linking temperature, the content of cross-linking agent, and feed temperature on PV performance of VTOS cross-linked PDMS membranes were investigated. For 6 wt% ethanol aqueous solution, the PDMS membrane had the high separation factor of 15.5 and total flux 573.3 g·m-2·h-1, respectively, when the feed temperature was 40°C, H-PDMS: VTOS: DBTDL = 1: 0.2: 0.02 and cross-linking temperature was 80°C. © 2013 Jin Gu et al.

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