期刊論文
| 學年 | 111 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2023-01-24 |
| 作品名稱 | Preparation of poly(vinyl alcohol-co-ethylene) hollow fiber membranes for high-flux ultrafiltration applications |
| 作品名稱（其他語言） | |
| 著者 | Yan-Lin Su; Konstantinos G. Beltsios; Jenn Fang Su; Liao-Ping Cheng |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Polymer 266 |
| 摘要 | Poly(vinyl alcohol-co-ethylene) (EVOH) hollow fiber membranes were prepared by isothermal dry-jet wet spinning of dopes containing polyvinylpyrrolidone (PVP), dimethyl sulfoxide (DMSO), and EVOH in water bath at 22 °C. DMSO and water are, respectively, a solvent and a non-solvent for EVOH, while PVP, which is water-soluble, enhances pore formation. All membranes are highly asymmetric with macrovoids that extend from the vicinity of both hollow fiber surfaces towards the central region where only interconnected cellular pores are present. Nanopores form on the external surface only in case the dope contains PVP. The internal surface is more porous than the outer one, as the out-diffusing DMSO can quickly reduce the strength of the internal bath during spinning. Water flux measurements indicate an increase-then-decrease trend, consistent with the observed morphological features. The membranes demonstrate attractive ultrafiltration features in the case of blue dextran molecules (2000 kDa); rejection as high as 97.4% at the permeation flux of 116 LMH is observed in the case of hollow fibers prepared from dopes containing 5% PVP. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1873-2291;0032-3861 |
| 期刊性質 | 國外 |
| 收錄於 | SCI Scopus |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | NLD |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/123282 ) |