Volume 116, Issue 4 pp. 2205-2215

Performance of a newly developed hydrophilic additive blended with different ultrafiltration base polymers

Huyen T. Dang

Huyen T. Dang

Department of Civil Engineering, University of Ottawa, Ottawa K1N 6N5, Canada

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Camille Amelot

Camille Amelot

École Nationale Supérieure d'Ingénieurs de Limoges, Université de Limoges, 13 Rue F. Chénieux, Limoges Cedex 87031, France

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Dipak Rana

Dipak Rana

Department of Chemical and Biological Engineering, University of Ottawa, Ottawa K1N 6N5, Canada

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Roberto M. Narbaitz

Corresponding Author

Roberto M. Narbaitz

Department of Civil Engineering, University of Ottawa, Ottawa K1N 6N5, Canada

Department of Civil Engineering, University of Ottawa, Ottawa K1N 6N5, Canada===Search for more papers by this author
Takeshi Matsuura

Takeshi Matsuura

Department of Chemical and Biological Engineering, University of Ottawa, Ottawa K1N 6N5, Canada

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First published: 14 January 2010
Citations: 24

Abstract

The capability of modifying ultrafiltration (UF) membranes with different base-polymers using a newly synthesized hydrophilic additive was investigated in this study. Five typical base-polymers were tested: cellulose acetate (CA), polyetherimide (PEI), polyethersulfone (PES), polysulfone (PS), and polyvinylidene fluoride (PVDF). The changes in characteristics and performance of the membranes were analyzed using scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle analysis, and solute transport tests. It was found that the effect of the hydrophilic additive was different for each polymer. Higher additive contents resulted in higher permeation flux. A visible effect on water content and permeability was obtained but the impact was not shown clearly in contact angles, possibly the additive's concentration was not sufficiently high at the surface. In term of flux enhancement the PES and PVDF membranes benefited the most by the addition of the hydrophilic additive. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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