Research on the Processes of Phase Inversion and Membrane Partitioning of Polymer of Different Compositions
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The paper examines the process of obtaining 13% polyethersulfone (PES) microfiltration membranes by phase inversion using DMF (dimethylformamide) as the solvent and PEG400 (polyethylene glycol) with different mass percentages as the additive. The intensity and IR spectra of particle sizes in the cast composite solutions have been studied. Inversion of the compositions has been carried out at 30℃ and 50℃. The influence of the coagulation bath temperature on the characteristics of membranes precipitated from solutions containing different amounts of PEG has been determined. Membranes have been tested. The surface morphology of the obtained membranes was also studied using a scanning probe microscope. Experimental studies have shown that membranes deposited at 50℃ from solutions of the same composition have higher performance and pore size than membranes deposited at 30℃. Binodal curves were constructed when the system was subjected to phase inversion at 30℃ and 50℃.
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Agnieszka K. Holda F.J.Vankelecom,Understanding and guiding the phase inversion process for synthesis of solvent resistant nanofiltration membranes, Journal of Applied Polymer science, Volume 132, 2015.
Fane, A.G.; Tang, C.Y.; Wang, R. Membrane technology for water: Microfiltration, ultrafiltration, nanofiltration, and reverse Osmosis. In Treatise on Water Science; Wilderer, P., Ed.; Elsevier Science: Amsterdam, The Netherlands, 2011; Volume 4, pp. 301–335. ISBN 978-0-444-53199-5.]
Al Hachim, Z.S.; Ridha, A.M.; Al-Baiati, M.N.; Alsalhy, Q.F.; Majdi, H.S. Sustainable modification of polyethersulfone membrane with poly(maleic anhydride-co-glycerol) as novel copolymer. Water 2022, 14, 1207
N. GOGESASHVILI, L. KUPARADZE, L. EBANOIDZE, Z. JAVASHVILI: Obtaining of Natural Water Microfiltration Membranes Based on Polyethersulphone With PEG 300, PEG 600 and LiCl Additives. Oxidation Communication 47(3), 543–550 (2024).
.G. BIBILEISHVILI, M. KEZHERASHVILI, N. GOGESASHVILI, L. KUPHARADZE, L. EBANOIDZE: Effect of the Temperature of the Non-Solvent on the Morphology of the Polymeric Membrane. European Journal of Scientific Research, 161(1), 5 – 15, (2022).
G. BIBILEISHVILI, M. KEZHERASHVILI, M. MAMULASHVILI: Effect of Different Solvents and Fore-Forming Agents on Morphology and Performance of Polyethersulphone Membranes. Oxidation Communication 47(3), 534–542 (2024).
Rahimpour, A.; Madaeni, S.S. Improvement of performance and surface properties of nano-porous polyethersulfone (PES) membrane using hydrophilic monomers as additives in the casting solution. J. Membr. Sci. 2010, 360, 371–379
Bibileishvili, G.V., Kujawsk, M.W., Gogesashvili, N.N., Kezherashvili, M.G., Javashvili, Z.D., Ebanoidze L.O., Kakabadze, E.D. ; Study of the effect of varying amounts of polyvinylpyralidone and LiCl on the structure and properties of polyehersulphone membranes.; Oxidation Communications,; Vol.48, №3;
Bibileishvili, G.V., Bahtiyar OzturkB, Kezherashvili, M.G., Gogesashvili, N.N., Javashvili, Z.D., Mamulashvili, M.A., Kuparadze, L. P.; Preparation and Research of Aromatic Polyamide Membranes Modified With Organic Acids, Oxidation Communications,; Vol.48, №3 ; 2025
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