Ultrafiltration PVC membranes
A procedure for the manufacture of asymmetric ultrafiltration PVC membranes has been presented. Membranes have been prepared from PVC solutions in DMF by the method of phase separation comprising gelation of a film cast into water. The optimum conditions for the preparation of membranes suitable for the ultrafiltration process have been established. The transport properties of membranes have been characterized by studies on water permeability (volume flow through unit of membrane surface area) as well as on the filtrr.toin rate and rejection ratio of proteins with various molecular masses and of oil-in-water emulsions.
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