引用本文:
武冠英, 孙本惠, 郭林, 沈一兵, 吕素维, 戴卫国. 聚氯乙烯超滤膜的溶剂蒸发速度影响研究[J]. 应用化学,
1988, 5(5): 48-52.
Citation: Wu Guanying, Sun Benhui, Guo lin, Shen Yibing, Lü Suwei, Dai Weiguo. INFLUENCES OF THE SOLVENT EVAPORATION RATE ON THE PREPARATION OF PVC UF MEMBRANE[J]. Chinese Journal of Applied Chemistry, 1988, 5(5): 48-52.
Citation: Wu Guanying, Sun Benhui, Guo lin, Shen Yibing, Lü Suwei, Dai Weiguo. INFLUENCES OF THE SOLVENT EVAPORATION RATE ON THE PREPARATION OF PVC UF MEMBRANE[J]. Chinese Journal of Applied Chemistry, 1988, 5(5): 48-52.
聚氯乙烯超滤膜的溶剂蒸发速度影响研究
English
INFLUENCES OF THE SOLVENT EVAPORATION RATE ON THE PREPARATION OF PVC UF MEMBRANE
Abstract:
The effects of the secondary additives on the rate of solvent evaporation and the performance of PVC UF membrane were investigated.It is found that the sort and content of secondary additives can influence on both the value of evaporation rate constant b and the membrane performances.The greater the difference between secondary additive and solvent, and the higher the content of secondary additive,the more remarkable change in the value of b.In the conditions used,the maximum flux value appears at 5%(wt) of secondary additive in the casting solution.Moreover,the evaporation time also has an important influence on the formation of polymer network pores and polymer aggregate pores,along with their size and the size distribution.
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Key words:
- Polyvinylchloride
- / Ultrafiltration membrane
- / Property
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