Abstract
The asymmetry of the transport (permeation) of gases through track membranes with asymmetric pores has been experimentally investigated. Samples with different porosities and diameters of pores have been studied. The difference between the direct and reverse flows (asymmetry of transport) of helium, nitrogen, and carbon dioxide through membranes has been revealed. The flow from the narrow part of a pore (direct flow) is about 15% larger than the reverse flow. The interaction parameters characterizing the effect of the roughness of the inner surface of pores on the gas flow through a membrane have been determined. The surface flow effect has been demonstrated using the data obtained. Necessary conditions for the appearance of the asymmetric transport effect have been formulated.
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