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Preparation and Characterization of Membrane Oxygenator- Oriented Polysulfone Asymmetric Membranes

Authors： Lv Quan1, Yin Hai-yan 1, Yu Wen-kui 2, Huang Xin 1, Li Lei 1*

Units： 1.Department of Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P.R.China; 2. Medical School, Nanjing University, Nanjing 210093, P.R.China

KeyWords： PSf membrane oxygenator; permeation flux; CWPPM; transport rate

ClassificationCode：TB324

year,volume(issue):pagination： 2013,33(5):25-29

Abstract：

Membrane oxygenator-oriented polysulfone(PSF) asymmetric membranes were prepared by wet phase inversion method and their performance was characterized primarily. It was demonstrated through experiments of membranes preparation that with increasing PSF concentration of casting solution, permeation flux of O2 and CO2 decreased and critical water permeability pressure of membrane（CWPPM） increased. Moreover, prolonging pre-volatilization time of wet membranes had a disadvantage on gas permeation but had little effect on CWPPM. Accordingly, the optimal PSF concentration of casting solution and pre-volatilization time of wet membranes is 15% and 5s, respectively. Besides, application experimental results of gas-liquid transport through PSF membrane oxygenator indicated that when the flow rate of bovine blood reached 1.5L/min, permeation flux of O2 and CO2 were 163ml/min and 148ml/min, respectively, which could achieve the gas exchange transmission capacity of membrane oxygenator.

Funds：

江苏省自然科学基金面上项目（BK2012727）

AuthorIntro：

吕权（1987—），男，河南省信阳市人，硕士研究生，研究方向为人工肺用膜材料；李磊，男，副教授，通讯联系人，电话: ( 025 ) 83596665- 810, E-mail：ll-nju@163.com.

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