Effect of Coagulation Bath Temperature and Residence Time on the Properties of PVDF Membranes

The purpose of this study is to determine optimal conditions for fabrication of a homemade asym metric membrane using Poly vinylidene fluoride (PVDF) polymer. PVDF as polymer, Dimethylacetamide (DMAc) as solvent, PEG and LiCl as additives, were used. In this regard, effect of Coagulation Bath Temperature (CBT) and residence time of coagulation (at CBT = 21°C) on Pure Water Flux and Protein Rejection were investigated. The results showed that low coagulation temperature and residence time decrease, the flux of the membrane while increase the rejection.

کلیدواژه ها:

Localization ، PVDF membrane ، Coagulation Bath Temperature ، Residence Time