Effect of solvent on morphology and performance of polysulfone and polyethersulfone ultrafiltration membranes for milk concentration

Polysulfone (PS) and Polyethersulfone (PES) membranes were manufactured from a casting solution of polymer, polyvinylpyrrolidone (PVP) in various solvents (N, Ndimethylacetamide (DMAc), N, N-dimethylformamide (DMF) and 1-methyl-2-pyrrolidone (NMP)). The influences of various solvents on morphology and performance of the prepared membranes were analyzed by scanning electron microscopy (SEM) and separation experiments using milk as the feed.

Keywords:

membranes , polysulfone , polyethersulfone , ultrafiltration , solvent , milk