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Hydrophobicity Enhancement of Poly(vinylidene fluoride-co-hexafluoropropylene) for Membrane Distillation

Khalid Turki Rashid, Sunarti Abd Rahman, Qusay Alsalhy


A Poly (vinylidene fluoride-co-hexafluoropropylene), (PVDF-co-HFP) hollow fiber membrane was prepared by phase inversion method using different concentrations of PVP as a pore former additives in the dope solution. Surface modification was done using a formic acid through immersion technique. It was observed that the contact angle for all membranes increased due to the surfaces modification (10% of hydrophobicity increment).This study shows that the hydrophobicity of (PVDF-co-HFP) hollow fiber membrane can be enhanced via formic acid surface modification process.


PVDF-co-HFP membrane; surface modification; membrane distillation; contact angle

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M. Khayet, T. Matsumura. Membrane Distillation: Principles and Applications, Elsevier, Oxford, U.K. 2011.

A. Alkhudhiri, N. Darwish, N. Hilal, Membrane distillation: a comprehensive review, Desalination, 287 (2012), 2–18.

L. Song, B Li , K.K. Sirkar, J.L. Gilron, Direct contact membrane distillation-based desalination: Novel membranes, devices, larger-scale studies, and a model. Ind. Eng. Chem. Res., 46 (2007), 2307–2323.

M. M. Teoh, S. Bonyadi, T.Shung Chung, Investigation of different hollow fiber module designs for flux enhancement in the membrane distillation process Journal of Membrane Science., 311 (2008), 371–379.

A.L. Ahmad, A.A. Abdulkarim, B.S. Ooi, S. Ismail, Recent development in additives modifications of polyethersulfone membrane for flux enhancement, Chemical Engineering Journal, 223 (2013), 246-267.

Z. Jianhua, J. D. Li, M. Duke, Z. Xie, and S. Gray. "Performance of asymmetric hollow fibre membranes in membrane distillation under various configurations and vacuum enhancement." Journal of Membrane Science. 362 (2010), 517-528.

Z. Jianhua. Theoretical and experimental investigation of membrane distillation. Diss. School of Engineering & Science, Victoria University, 2011.

L. Shi, R. Wang, Y. Cao, D. T. Liang, J. H. Tay. Effect of additives on the fabrication of poly(vinylidene fluoride-co-hexafluropropylene) (PVDF-HFP) asymmetric microporous hollow fiber membranes. Journal of Membrane Science. 315 (2008), 195–204.

W.-Y. Chuang, T.-H.Young, W.-Y.Chiu, C.-Y. Lin. The effect of polymeric additives on the structure and permeability of poly(vinyl alcohol) asymmetric membranes. Polymer. 41 (2000), 5633–5641.

J. Bumsuk, J. K. Yoon, B. Kim, and H.W. Rhee. Effect of molecular weight of polymeric additives on formation, permeation properties and hypochlorite treatment of asymmetric polyacrylonitrile membranes." Journal of membrane science 243,(2004): 45-57.


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