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Title: Performance and properties of modified poly (vinylidene fluoride) membranes using general purpose polystyrene (GPPS) by DIPS method
Authors: Srivastava, Harsha P.
Arthanareeswaran, G.
Anantharaman, N.
Starov, Victor
Keywords: Poly(vinylidene fluoride)
Polymer blend
Thermal stability
Treatment of distillery effluent
Issue Date: 2011
Publisher: © Elsevier
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.
Abstract: 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.
Description: This paper is in closed access.
Version: Published
DOI: 10.1016/j.desal.2011.02.042
URI: https://dspace.lboro.ac.uk/2134/25807
Publisher Link: http://dx.doi.org/10.1016/j.desal.2011.02.042
ISSN: 0011-9164
Appears in Collections:Closed Access (Chemical Engineering)

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