BARRIER MEMBRANES WITH TIPPED IMPERMEABLE FLAKES

Diffusion of carbon dioxide through silicone-polycarbonate membranes c ontaining oriented mica flakes is proportional to the square of the vo lume 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 oriente d These experiments are consistent with Monte Carlo simulations. The s imulations allow investigation of more complex geometries, including o ther flake orientations and polydisperse flake sizes.