▎ 摘　　要

Box-counting approach based on the analysis of particle number distribution between separate fragments of electron micrographs is applied to composites based on cyanoethyl ester of polyvinyl alcohol containing barium titanate (BaTiO3) filler nanoparticles modified by the deposition of small layer graphene nanoplatelets. This modification is shown to significantly affect the microstructural characteristics of the composites, including the filler distribution uniformity, lacunarity and fractal dimension. The obtained data are compared with the increase in permittivity of the composites resulting from the filler modification with graphene.