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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2017.27.5.458

Effect of Heat Capacity of Coagulant on Morphology of PVDF-Silica Mixture Through TIPS Process for the Application of Porous Membrane  

Lee, Jeong Woo (Department of materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Nam, Sang Yong (Department of materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Publication Information
Membrane Journal / v.27, no.5, 2017 , pp. 458-467 More about this Journal
Abstract
In this study, we prepared PVDF membranes via TIPS for water treatment applications. PVDF was used for its excellent chemical and mechanical properties. The effect of coagulation bath composition, temperature, and heat capacity on the overall membrane morphology was studied and observed using SEM. A mixture of DOP and DBP was used as the diluent, and silica was used as an additive. It was observed that as the heat capacity of the coagulation bath increased, the crystallization rate of PVDF decreased yielding larger pores. Also, as the heat capacity of the coagulation bath decreased, the crystallization rate of PVDF increased yielding smaller pores.
Keywords
TIPS; PVDF; Coagulation content; heat capacity;
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Times Cited By KSCI : 6  (Citation Analysis)
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