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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2022.32.2.109

Effect of Nonwoven Support During Fabrication of Flat Sheet Membranes via Phase Inversion Method  

Kim, Minjae (Energy and Chemical Engineering Department, Incheon National University)
Kim, Subin (Energy and Chemical Engineering Department, Incheon National University)
Kim, Sumin (Energy and Chemical Engineering Department, Incheon National University)
Lee, Hoik (Research Institute of Industrial Technology Convergence, Korea Institute of Industrial Technology)
Kim, Jeong F. (Energy and Chemical Engineering Department, Incheon National University)
Publication Information
Membrane Journal / v.32, no.2, 2022 , pp. 109-115 More about this Journal
Abstract
In this work, the effect of nonwoven support during fabrication of flat sheet membranes via nonsolvent-induced phase separation, was investigated in detail. It was found that dope solutions with low viscosity tend to penetrate through the nonwoven support during phase inversion, resulting in nonhomogeneous membranes. A simple soaking treatment of nonwoven support prevented such unwanted dope penetration, and resulted in membranes with higher water and solvent permeance performance. The dope penetration through nonwoven was more prominent in solutions with low viscosity, and the nonwoven soaking treatment not effective in solutions with high viscosity.
Keywords
cellulose acetate; phase inversion; NIPS; nonwoven support; solvent soaking;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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