Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10388963 | Journal of Membrane Science | 2005 | 9 Pages |
Abstract
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 â« silicone. Simulant and CWA permeation are correlated in terms of relative permeability and reduced breakthrough time.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
D. Rivin, R.S. Lindsay, W.J. Shuely, A. Rodriguez,