Review article

Morphology of initial components for polyurethane and epoxyamine hardener based composite material in different mass ratios has been studied, as well as that of chloroparaffin filled hydroinsulating film coat on its base. A high-resolution optical microscope was used for this study. Microphotographs were taken in the regimes of light field, phase contrast and crossed nicols. There have been found heterogeneity and significant structure non-uniformity of the resulting film coat. Dimensions of dispersed phases and foreign inclusions (assuming, air bubbles) have been estimated.