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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2016.26.6.449

Characterization of PVDF-DBP Materials for Thermally Induced Phase Separation  

Kim, Se Jong (Department of materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
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.26, no.6, 2016 , pp. 449-457 More about this Journal
Abstract
In this study, polyvinylidene fluoride (PVDF) membrane with excellent mechanical properties and chemical resistance was prepared and characterized for the application of water treatment. Dibutyl-phthalate (DBP) was used as a diluent for making a membranes through temperature induced phase separation (TIPS) method, and the crystallization temperature, melting point, cloud point and SEM image were observed with different ratio of diluent in polymer/diluent mixture. The crystallization temperature and melting point increased proportionally with the content of polymer, while the cloud point temperature decreased. Finally, it was confirmed that stable membrane could be manufactured at a polymer content of 62 wt% and a temperature $125^{\circ}C$ using the phase diagram of PVDF/DBP mixtures with temperatures.
Keywords
TIPS; PVDF; DBP; cloud point; crystalline temperature; phase diagram;
Citations & Related Records
Times Cited By KSCI : 13  (Citation Analysis)
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