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Chang, Hsu-Hsien; Chen, Sheng-Chang; Lin, Dar-Jong; Cheng, Liao-Ping
單位淡江大學化學工程與材料工程學系
出版者Amsterdam: Elsevier BV
著錄名稱、卷期、頁數Journal of Membrane Science 466, pp.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PVDF membrane;Surfactant;Macrovoid;Immersion precipitation;Ultra-filtration
語言英文
ISSN0376-7388
期刊性質國外
收錄於SCI;
產學合作
通訊作者Cheng, Liao-Ping
審稿制度
國別荷蘭
公開徵稿
出版型式,電子版
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