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Barrier membranes with tipped impermeable flakes
Author(s) -
Eitzman Diana M.,
Melkote R. R.,
Cussler E. L.
Publication year - 1996
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690420103
Subject(s) - polycarbonate , square (algebra) , flake , materials science , membrane , composite material , monte carlo method , mica , silicone , volume fraction , diffusion , geometry , chemistry , physics , thermodynamics , mathematics , biochemistry , statistics
Diffusion of carbon dioxide through silicone‐polycarbonate membranes containing oriented mica flakes is proportional to the square of the volume fraction of the flakes, to the square of the aspect ratio, and to the square of the cosine of the angle at which the flakes are oriented. These experiments are consistent with Monte Carlo simulations. The simulations allow investigation of more complex geometries, including other flake orientations and polydisperse flake sizes.