期刊論文
| 學年 | 82 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 1994-06-01 |
| 作品名稱 | An improved model for mass transfer during the formation of polymeric membranes by the immersion-precipitation process |
| 作品名稱（其他語言） | |
| 著者 | Cheng, Liao-ping; Soh, Young S.; Dwan, An-hwa; Gryte, Carl C. |
| 單位 | 淡江大學化學工程與材料工程學系 |
| 出版者 | New York : Wiley-Blackwell |
| 著錄名稱、卷期、頁數 | Journal of polymer science Part B : Polymer physics 32(8), pp.1413-1425 |
| 摘要 | An analysis is presented, which describes the isothermal ternary diffusion process encountered in the formation of a cellulose acetate polymeric membrane by a direct immersion-precipitation of polymeric solutions in a nonsolvent bath. A material coordinate was employed to derive the mass transfer equations for the membrane solution and the convective mass transfer in the coagulation bath was taken into account by solving the hydrodynamic boundary layer equations. Diffusion coefficients were measured and used to deduce ternary phenomenological coefficients. The computed results are found to agree with the experimental precipitation time and membrane morphologies observed in scanning electron photomicrographs. |
| 關鍵字 | membrane; immersion; precipitation; cellulose acetate; ternary; diffusion |
| 語言 | en |
| ISSN | 0887-6266 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/44201 ) |