화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.21, 1005-1013, January, 2015
DOI10.1016/j.jiec.2014.05.009  Export Citation
Preparation and characterizations of charged PVDF membranes via composite thermally induced phase separation (C-TIPS) method
Hai-Peng Xu, Wan-Zhong Lang†, Xuan Zhang, and Ya-Jun Guo
  • The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China
E-mail:
The charged poly(vinylidene fluoride) (PVDF) membranes were prepared by composite thermally induced phase separation (C-TIPS) method with perfluorosulfonic acid (PFSA) as additive. The results verify that the porosity, surface hydrophilicity and pure water permeation flux (JW) increase with the addition of PFSA for the membranes. The highest JW of 507.2 ± 1.2 L/(M2 H bar) is obtained for the membrane cast at 90 ℃. Much higher casting temperature isn’t advantageous to improve JW value for the PVDF membranes. All membranes exhibit negative apparent zeta potential (ζapp). The crystallinity in b phase increases as casting temperature increases for all PVDF membranes.
Keywords:Poly(vinylidene fluoride) (PVDF);Perfluorosulfonic acid (PFSA);Composite thermally induced phase;separation (C-TIPS);Charged membrane
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