The permeability of a composite membrane consisting of a homogeneous layer and a porous layer has been derived theoretically by assuming that the permeation through the homogeneous layer obeys Fick's law and that permeation through the porous layer is free molecular flow. The activation energy of th
Permeability and Topography of Membranes
โ Scribed by van Deenen, L. L. M.
- Publisher
- John Wiley and Sons
- Year
- 1973
- Weight
- 347 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0931-5985
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The membrane with continuously varying and pressure-dependent local permeability P may show a dependence of transport property for gases and vapors on the direction of flow. Such an asymmetry occurs only if the deviation of local permeability from ideality varies from layer to layer. In mathematical