Open Access

Downloads

Download data is not yet available.

Abstract

Crosslinked poly(vinyl alcohol) (PVA) composite membranes were synthesized by casting selective crosslinked PVA films on the polyacrylonitrile (PAN) porous substrates. The PVA films were prepared by in-situ crosslinking technique using four different crosslinking agents, such as glutaraldehyde, fumaric acid, maleic acid and malic acid. The separation performance in terms of permeation flux and separation factor of prepared membranes were evaluated for pervaporation dehydration of ethanol/water mixture of 80/20 wt% at 60 oC. The prepared membranes were also characterized by FTIR, SEM, swelling and sessile drop contact angle measurements. It was found that the chemical structure of the PVA membrane was changed via crosslinking reaction. The physicochemical properties (hydrophilicity and swelling degree) and separation performance of the prepared membranes were affected by the chemical structures of the crosslinking agents. Furthermore, there was a trade-off between permeation flux and selectivity of the resulting membranes. When the flux increased, the separation factor decreased. The results of this study contributed to enrich the data of the crosslinking reaction of PVA membranes, and expected to help researcher in suitable choosing crosslinking agent for producing pervaporation PVA membrane for dehydration of ethanol solutions.



Author's Affiliation
Article Details

Issue: Vol 19 No 4 (2016)
Page No.: 97-106
Published: Dec 31, 2016
Section: Engineering and Technology - Research article
DOI: https://doi.org/10.32508/stdj.v19i4.787

 Copyright Info

Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Tran, H., Vuu, M., Hoang, Q., Nguyen, N., & Mai, P. (2016). Pervaporation dehydration of ethanol-water mixture using crosslinked poly(vinyl alcohol) membranes. Science and Technology Development Journal, 19(4), 97-106. https://doi.org/https://doi.org/10.32508/stdj.v19i4.787

 Cited by



Article level Metrics by Paperbuzz/Impactstory
Article level Metrics by Altmetrics

 Article Statistics
HTML = 1930 times
Download PDF   = 1035 times
Total   = 1035 times