![]() ![]() These findings demonstrate the promise of a new concept for green manufacturing nanostructured polymeric membranes with high performances.įiltration is a separation process based on size exclusion through a porous media, where liquids and small particles pass the pores, but bigger particles are rejected. Apart from the high water permeation flux, the prepared membranes also show excellent stable flux after fouling and superior mechanical properties of high pressure load and better abrasion resistance. The new manufacturing procedure is governed by fewer operating parameters and is, thus, easier to control with reproducible results. Here we show, using polyvinylidene fluoride as a sample polymer, a new concept of membrane manufacturing by combining oriented green solvent crystallization and polymer migration is able to obtain high performance membranes with pure water permeation flux substantially higher than those with similar pore size prepared by conventional phase-separation processes. ![]() However, this method has reached its technological limit, and there have been no significant breakthrough over the last decade. Currently, production of porous polymeric membranes for filtration is predominated by the phase-separation process. ![]()
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