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Performance and properties of modified poly (vinylidene fluoride) membranes using general purpose polystyrene (GPPS) by DIPS method

journal contribution
posted on 2017-07-17, 12:32 authored by Harsha P. Srivastava, G. Arthanareeswaran, N. Anantharaman, Victor Starov
An attempt has been undertaken to improve hydrophilic characteristics of poly(vinylidene fluoride) (PVDF) membrane by blending with amorphous polymer, polystyrene (GPPS) using conventional method of diffusion induced phase separation (DIPS). Blends of PVDF and GPPS have been prepared in 100:00, 95:05, 90:10, 85:15 and 00:100 ratio combinations. The morphology of blend membranes was investigated using scanning electron microscope (SEM), crystallite size and crystallinity was investigated using X-ray Diffractometer (XRD), pure water flux (PWF) and contact angle etc were also used. Pure water flux of 5% and 10% GPPS blend membranes went up to 14.0 and 16.5 Lm−2 h−1as compared to10.9 Lm−2 h−1 for 100% PVDF membrane. Crystallinity and crystallite size of the PVDF–GPPS membranes reduced with increase in GPPS content in PVDF. However, according to our observation excess of 15% GPPS in blend membrane showed an incompatibility and heterogeneity in PVDF–GPPS membrane structure. The treatment of distillery effluent through 100% PVDF, 5% and 10% GPPS blend membranes was investigated and high molecular weight organics were separated.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Desalination

Volume

283

Pages

169 - 177

Citation

SRIVASTAVA, H.P. ...et al., 2011. Performance and properties of modified poly (vinylidene fluoride) membranes using general purpose polystyrene (GPPS) by DIPS method. Desalination, 283, pp. 169-177.

Publisher

© Elsevier

Version

  • VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2011

Notes

This paper is in closed access.

ISSN

0011-9164

Language

  • en

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