Abstract
AbstractThe effect of surface hydrophilization on antifouling properties of ultrafiltration membranes was investigated. The enhanced film model as well as experimental data showed the vital role of surface charge on amount of deposited bovine serum albumin. Two types of materials were studied: high flux polysulfone (capillary, asymmetrical) and low flux polyethylene (flat, symmetrical) membranes. The antifouling effect, revealed mostly by polyethylene membranes, pointed on solute convection as an important factor. When membrane and solute borne this same sign of charge the antifouling effect was governed by the net charge of membrane.
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