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首页> 外文期刊>Journal of industrial and engineering chemistry >Preparation and characterizations of charged PVDF membranes via composite thermally induced phase separation (C-TIPS) method
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Preparation and characterizations of charged PVDF membranes via composite thermally induced phase separation (C-TIPS) method

机译：复合热诱导相分离（C-TIPS）方法制备带电PVDF膜并进行表征

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摘要

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 (J(W)) increase with the addition of PFSA for the membranes. The highest J(W) of 507.2 +/- 1.2 L/(M-2 H bar) is obtained for the membrane cast at 90 degrees C. Much higher casting temperature isn't advantageous to improve J(W) value for the PVDF membranes. All membranes exhibit negative apparent zeta potential (zeta(app)). The crystallinity in beta phase increases as casting temperature increases for all PVDF membranes. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：以全氟磺酸（PFSA）为添加剂，通过复合热诱导相分离（C-TIPS）方法制备了带电聚偏二氟乙烯（PVDF）膜。结果证实，随着膜的加入PFSA，孔隙率，表面亲水性和纯水渗透通量（J（W））增加。对于在90摄氏度下流延的薄膜，获得的最高J（W）为507.2 +/- 1.2 L /（M-2 H bar）。更高的流延温度不利于提高PVDF的J（W）值膜。所有膜均显示负的Zeta电位（zeta（app））。对于所有PVDF膜，β相的结晶度都随着浇铸温度的升高而增加。 （C）2014大韩工业化学工程学会。由Elsevier B.V.发布。保留所有权利。

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