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, 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 en
ISSN 0376-7388 1873-3123
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Liao-Ping Cheng
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/106344 )