He Gaohong   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Title : Director of R & D Center of Membrane Science and Technology

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Language:English

Paper Publications

Title of Paper:蒸发时间对聚醚酰亚胺气体分离膜结构及性能的影响

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Date of Publication:2006-11-16

Page Number:632-636

Key Words:聚醚酰亚胺;蒸发时间;气体分离膜;干湿相转化法;结构性能

Abstract:以N,N-二甲基乙酰胺(DMAc)为溶剂,水为非溶剂,采用干湿相转化法制备了聚醚酰亚胺(PEI)气体分离膜。探讨了蒸发时间对PEI膜性能和结构的影响。结果表明:随着蒸发时间的延长,膜的致密层厚度先增加后减少,支撑层中有大而深的孔出现;气体渗透通量先减少后增加,分离系数先增加后减少,在蒸发时间在10s左右时,气体的分离系数最高,且渗透通量适中,是成膜的较优条件。

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