Abstract

The formation of polymer films obtained from latexes and their structural features have been investigated with the aid of a Monte Carlo simulation modelling and atomic force microscopy. The effects of particle size polydispersity and solvent drying rate on film structure, permeability and roughness have been studied. It has been shown that slow drying permits the formation of films with relatively low porosity and smooth surfaces. Polydispersity in the particle size leads to a weakening of the particle layering and thereby to a reduction in film barrier properties. Theoretical calculations indicate the existence of a local nonlinear dependence of film surface roughness on drying velocity. The correlation between film surface roughness and porosity has also been established.

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