Artículos de revistas
DENSE HYDROPHILIC COMPOSITE MEMBRANES FOR ULTRAFILTRATION
Registro en:
Journal Of Membrane Science. Elsevier Science Bv, v. 106, n. 41671, n. 49, n. 56, 1995.
0376-7388
WOS:A1995TB40100006
10.1016/0376-7388(95)00076-O
Autor
NUNES, SP
SFORCA, ML
PEINEMANN, KV
Institución
Resumen
Dense hydrophilic composite membranes for ultrafiltration were prepared from an asymmetric porous PVDF support coated with a thin (< 1 mu m) layer of polyether-block-polyamide copolymer. Membranes with a molecular weight cut-off between 800 and 4500 g/mol and water permeability between 2.3 and 9.4 1 h(-1) m(-2) bar(-1) were obtained. The dry membrane surface was characterized as a dense non-porous layer when observed by scanning electron microscopy. When compared to other commercial membranes and to the non-coated porous PVDF support in the ultrafiltration of oil-water waste, the performance of the composite membranes was comparable to the Amicon YM30 cellulose membrane with lower susceptibility to fouling. 106 41671 49 56