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The Influence of Talc Addition on the Performance of Polypropylene Membranes Formed by TIPS Method

Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
Membranes 2019, 9(5), 63;
Received: 25 March 2019 / Revised: 6 May 2019 / Accepted: 7 May 2019 / Published: 14 May 2019
(This article belongs to the Special Issue Membrane Distillation Process)
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The effect of talc addition on the morphology of capillary membranes formed by a thermally induced phase separation (TIPS) method was investigated in the presented work. The usability of such formed membranes for membrane distillation was evaluated. Two types of commercial capillary polypropylene membranes, fabricated for microfiltration process, were applied in the studies. A linear arrangement of polymer chains was obtained in the walls of membranes formed without a talc addition. In the case of membranes blended with talc, the linear structure was disordered, and a more porous structure was obtained. The changes in morphology enhanced the mechanical properties of blended membranes, and their lower thermal degradation was observed during 350 h of membrane distillation studies. Long-term studies confirmed the stability of talc dispersion in the membrane matrix. A leaching of talc from polypropylene (PP) membranes was not found during the membrane distillation (MD) process. View Full-Text
Keywords: membrane distillation; membrane stability; polypropylene; TIPS; talc membrane distillation; membrane stability; polypropylene; TIPS; talc

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Gryta, M. The Influence of Talc Addition on the Performance of Polypropylene Membranes Formed by TIPS Method. Membranes 2019, 9, 63.

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