Morphology and performance of PVDF TIPS microfiltration hollow fiber membranes prepared from PVDF/DBP/DOP systems for industrial application

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• 作者：Qianhua Zhou ; Zhan Wang ; Haijun Shen ; Zhongya Zhu ; Liping Liu ; Libin Yang and Lina Cheng
• 关键词：mixed diluents ; mixture of diluents ; PVDF ; TIPS ; hollow fiber membrane
• 刊名：Journal of Chemical Technology & Biotechnology
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：91
• 期：6
• 页码：1697-1708
• 全文大小：1970K
• ISSN：1097-4660

文摘

This research focused on the impacts of different dibutyl phthalate (DBP)/dioctyl phthalate (DOP) weight ratios on the surface morphology and the properties of poly (vinylidene fluoride) (PVDF) thermally induced phase separation (TIPS) microfiltration hollow fiber membranes. The phase diagrams of PVDF/DBP/DOP systems were determined and the optimum weight ratio DBP/DOP in the liquid–liquid region of the binary phase diagram was chosen to form a membrane with interconnected sponge-like structure. Optimum processing temperature was determined based on analysis of the phase diagrams and industrial applications. In addition, the morphology and properties of the membranes were characterized as well as the performance of the membrane modules.