The Effect of Bath Temperature and PEG Inclusion on the Performance of PVDF Membrane

Poly (vinylidene fluoride) (PVDF) membranes were prepared by the phase inversion method. The effect of bath’s temperature and polyethylene glycol (PEG) were examined on the membrane flux and surface porosity. N,N-dimethylacetamide (DMAc) and water were used as solvent and non-solvent for PVDF, respectively. The membrane water flux (dead-end filtration procedure) and the surface porosity were increased as the PEG content increased, mainly due to the pore forming effect of PEG additive. Besides, the membrane water flux increased at higher bath temperature due to increasing pores on the surface of PVDF membrane.

کلیدواژه ها:

Poly (vinylidene fluoride) ، membrane ، polyethylene glycol ، porosity ، Flux