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Abstract

The processes of sorption and diffusion of water in anisotropic glass ribbon-reinforced composite films of controlled structural and physical characteristics were investigated in terms of the film properties, e.g., geometry, orientation, and volume fraction of the filler; molding characteristics of the composite film; and the adhesion between the glass ribbon and continuous cellulose acetate matrix. While the diffusion of water through unfilled cellulose acetate film was found to be a simple activated process with very little concentration dependence, the diffusion behavior of glass ribbon-reinforced cellulose acetate was found to be anomalous and concentration dependent.