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:Interesting behavior for filtration of macromolecules through EVAL membranes
學年88
學期1
出版(發表)日期2000/01/01
作品名稱Interesting behavior for filtration of macromolecules through EVAL membranes
作品名稱(其他語言)
著者Young, Tai-horng; 鄭廖平; Cheng, Liao-ping; Lin, H. Y.
單位淡江大學化學工程與材料工程學系
出版者Elsevier
著錄名稱、卷期、頁數Polymer 41(1), pp.377-383
摘要The objective of this article is to investigate the permeation characteristics of several polydispersed macromolecules through the asymmetric and the particulate poly (ethylene-co-vinyl alcohol) (EVAL) membranes. The solutes in examination include two nonionic solutes, dextran and polyethylene glycol (PEG), and one anionic solute, sodium polyacrylate (SPA). The ultrafiltration results indicate that the rejection coefficients increase monotonically with the molecular weights of test solutes permeating through the asymmetric EVAL membranes. This is consistent with the behavior of normal commercial ultrafiltration membranes. For the particulate membranes, the rejection curves show different trends. In most cases, there exist two local minima in the rejection curves, having the shape of “W”. This unusual behavior is found to be associated with the dual-pore character of the particulate membrane. To this context, a parallel composite membrane model is proposed to explain this specific rejection in terms of rejection coefficients for the small and the large pores.
關鍵字EVAL;Asymmetric membranes;Particulate membranes
語言英文
ISSN0032-3861
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式,紙本
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