教師資料查詢 | 類別: 期刊論文 | 教師: 鄭廖平 CHENG, LIAO-PING (瀏覽個人網頁)

標題:The effect of Tween-20 additive on the morphology and performance of PVDF membranes
學年103
學期1
出版(發表)日期2014/09/15
作品名稱The effect of Tween-20 additive on the morphology and performance of PVDF membranes
作品名稱(其他語言)
著者Hsu-Hsien Chang, Sheng-Chang Chen, Dar-Jong Lin, Liao-Ping Cheng
單位
出版者
著錄名稱、卷期、頁數Journal of Membrane Science, 466, 302-312
摘要The effects of additive, Tween-20, on the morphology and ultra-filtration performance of the PVDF membranes formed by isothermal immersion precipitation from the Tween-20/water/TEP/PVDF system were investigated. High resolution FESEM imaging indicates that the membranes׳ bulk constituted of interlinked crystalline particles, whose shapes change from more sheaf-like to more stick-like as larger amounts of Tween-20 were initially added into the dope. Introduction of Tween-20 caused formation of nano-pores on the top surfaces of the membranes and micron-sized columnar voids underneath the top skin layer. Some small amounts of Tween-20 may reside in the formed membrane if the nascent membrane has not been carefully washed. Presence of Tween-20 in the membrane was analyzed by water contact angle measurements, Fourier Transform Infrared-Attenuated total reflection spectroscopy (FTIR-ATR), Nuclear Magnetic Resonance (NMR), and X-ray Photoelectron Spectroscopy (XPS). Furthermore, water flux and blue dextran filtration experiments were carried out to illustrate the potential applications of the membranes in fine separation processes.
關鍵字
語言英文(美國)
ISSN
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度0
國別中華民國
公開徵稿
出版型式,電子版
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