會議論文

學年 103
學期 2
發表日期 2015-07-26
作品名稱 The effect of Tween-20 additive on the morphology and performance of PVDF hollow fiber membranes
作品名稱(其他語言)
著者 Sheng-Chang Chen; Hsu-Hsien Chang; Sheng-Huang Wu,Tong-Wen Cheng; Yan-Lin Su; Liao-Ping Cheng
作品所屬單位
出版者
會議名稱 2nd International Conference on Desalination using Membrane Technology
會議地點 Singapore
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_US
收錄於
會議性質 國際
校內研討會地點
研討會時間 20150726~20150729
通訊作者
國別 TWN
公開徵稿
出版型式
出處 2nd International Conference on Desalination using Membrane Technology
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/106775 )