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Liquid permeation through nonporous barrier materials

Liquid permeation through nonporous barrier materials,10.1016/j.memsci.2004.06.057,Journal of Membrane Science,D. Rivin,R. S. Lindsay,W. J. Shuely,A.

Liquid permeation through nonporous barrier materials   (Citations: 3)
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Permeation of chemical warfare agents (CWAs) and relatively nontoxic simulants in several elastomer compounds is examined using a new design flooded surface, liquid permeation cell. Diffusivity (D) and permeability are determined for sulfur mustard and sarin CWA, and for the simulants: dichlorohexane, chloroethyl phenyl sulfide, diethyl methylphosphonate and diisopropyl methylphosphonate. Values of D calculated by several kinetic methods at different stages of the permeation process and from steady-state permeability are generally in agreement but lower than those obtained from immersion kinetics. Barrier effectiveness of the elastomer compounds towards the CWA and simulant liquids decreases in the order: butyl > EPDM > nitrile ≫ silicone. Simulant and CWA permeation are correlated in terms of relative permeability and reduced breakthrough time.
Journal: Journal of Membrane Science - J MEMBRANE SCI , vol. 246, no. 1, pp. 39-47, 2005
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