V. S. MAMTANI, A. K. GHOSH*, R. C. BINDAL
Journal of Polymer Materials, Vol.39, No.1-2, pp. 137-149, 2022, DOI:10.32381/JPM.2022.39.1-2.9
Abstract In this study, polysulfone based capillary ultrafiltration membranes with desired characteristics
were indigenously developed and their performance was evaluated with respect to turbidity
removal from raw sea water. Capillary membranes were spun with in-house fabricated spinneret
using polymer casting solution (dope solution) of different compositions having different viscosity
using polyvinyl pyrrolidone (PVP) as pore-forming agent. Different experimental conditions namely
dope pressure, bore fluid flow rate and air gap distance are optimized to get membranes of
desired properties. Test results of individual capillaries in terms of pure water permeability
(PWP), separation of single uncharged solutes like polyethylene glycol (PEG) and mechanical… More >
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