Please use this identifier to cite or link to this item: https://doi.org/10.1016/S1383-5866(97)00011-7
Title: Calculation of the intrusion depth and its effects on microporous composite membranes
Authors: Chung, T.S. 
Keywords: air separation
composite membranes
intrusion
intrusion depth
resistance model
Issue Date: 5-Sep-1997
Source: Chung, T.S. (1997-09-05). Calculation of the intrusion depth and its effects on microporous composite membranes. Separation and Purification Technology 12 (1) : 17-23. ScholarBank@NUS Repository. https://doi.org/10.1016/S1383-5866(97)00011-7
Abstract: The intrusion of a polymer solution into microporous substrates may have a detrimental effect on the performance of air separation membranes. An extremely simple equation has been derived in this paper for the calculation of intrusion depth in a multi-layer microporous composite membrane. A modified resistance model has also been proposed in order to calculate the intrusion effects on microporous composite membrane performance. When comparing the calculated results to the previous experimental data on 6FDA-polyimide/polyacrylonitrile (PAN) hollow fibers, the new model accurately predicts the air-separation performance of multilayer microporous composite membranes. However, this model is only valid if the surface-porosity ratio multiplying the permeability difference (between the gutter and the substrate) is much greater than the substrate permeability.
Source Title: Separation and Purification Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/67377
ISSN: 13835866
DOI: 10.1016/S1383-5866(97)00011-7
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