Resumo

ESPINOZA-GOMEZ, Heriberto  e  LIN, Shui Wai. Development of Hydrophilic Ultrafiltration Membrane from Polysulfone-Polyvinylpyrrolidone. Rev. Soc. Quím. Méx [online]. 2003, vol.47, n.1, pp.53-57. ISSN 0583-7693.

Ordinary polymeric membranes are hydrophobic in nature, thus hydrophobic polymeric membranes foul rapidly in water purification operations. A change in membrane surface properties can reduce fouling; this may be accomplished by increasing the hydrophilicity of the membrane surface, and by using a membrane with smaller pore size. The ultrafiltration membranes were prepared via phase inversion process in our laboratory, from polysulfone / polyvinylpyrrolidone (PS / PVP). The basic characteristics of these membranes like water permeability, water content and membrane selectivity were measured.

Palavras-chave : Ultrafiltration; Hydrophilic Membrane; Membrane Preparation and Structure.