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Vol.1 , No. 4, Publication Date: Jul. 28, 2014, Page: 140-144
| [1] | I. M. T. A. Shigidi, Department of Chemical Engineering, College of Engineering, King Khalid University, P.O. Box 9036. Abha 61413, Kingdom of Saudi Arabia; Department of Chemical Engineering, Faculty of Engineering, Al-Neelain University, P.O. Box 10179. Khartoum, Sudan. |
The use of the bubble point test was investigated in defining tack etch membranes characteristics. The method applied monitors the gas-liquid interfacial interaction as the gas penetrates the wetted membrane, thus expels the wetting liquid from the pores. Relationships were based on the notion of capillary pressure, as presented in Washburn equation to relate the applied pressure to the corresponding pore’s diameter. Calculations were based on the assumption of perfect cylindrical shapes of the pores as presented by the SEM pictures taken for nuclepore track-etched membranes. Results obtained were in good agreement with the manufacturers rating, hence proving reliability in using the bubble point test in assessing membrane’s pore diameters.
Keywords
Bubble Point Test, Membrane Characterisation, Track-Etched Membrane, Pore Size and Pore Size Distribution
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