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:An improved model for mass transfer during the formation of polymeric membranes by the immersion-precipitation process
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
語言英文
ISSN0887-6266
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
相關連結
SDGs
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