The Morphological Study of PVDF / PEG Membranes

Poly (vinylidene fluoride) (PVDF) membranes were prepared by the phase inversion method. The effect of bath’s temperature and added polyethylene glycol (PEG) on the morphology of prepared membranes were examined. N,N-dimethylacetamide (DMAc) and water were used as solvent and non-solvent, respectively. The membranes were characterized by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). The most regular structure of the membrane was obtained by incorporation of 5 wt% PEG at 60 ˚C bath temperature. The AFM analysis also showed the favorable effect of the PEG on membrane surface roughness

کلیدواژه ها:

Poly (vinylidene fluoride) ، membrane ، polyethylene glycol ، morphology