assessment of blend pvdf membranes, and the effect of polymer concentration and blend composition

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ID: 157714
2018
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Abstract
In this work, PVDF homopolymer was blended with PVDF-co-HFP copolymer and studied in terms of morphology, porosity, pore size, hydrophobicity, permeability, and mechanical properties. Different solvents, namely N-Methyl-2 pyrrolidone (NMP), Tetrahydrofuran (THF), and Dimethylformamide (DMF) solvents, were used to fabricate blended PVDF flat sheet membranes without the introduction of any pore forming agent, through a non-solvent induced phase separation (NIPS) technique. Furthermore, the performance of the fabricated membranes was investigated for pressure and thermal driven applications. The porosity of the membranes was slightly increased with the increase in the overall content of PVDF and by the inclusion of PVDF copolymer. Total PVDF content, copolymer content, and mixed-solvent have a positive effect on mechanical properties. The addition of copolymer increased the hydrophobicity when the total PVDF content was 20%. At 25% and with the inclusion of mixed-solvent, the hydrophobicity was adversely affected. The permeability of the membranes increased with the increase in the overall content of PVDF. Mixed-solvents significantly improved permeability.
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ali2018membranesassessment Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Imtiaz Ali;Omar A. Bamaga;Lassaad Gzara;M. Bassyouni;M. H. Abdel-Aziz;M. F. Soliman;Enrico Drioli;Mohammed Albeirutty
Journal advances in pharmacological sciences
Year 2018
DOI
10.3390/membranes8010013
URL
http://www.mdpi.com/2077-0375/8/1/13
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