EVALUATION OF ELECTROPHYSICAL CHARACTERISTICS FILLED WITH MODIFIED TECHNICAL CARBON COMPOSITE MATERIALS WITH THE HELP OF THE METHOD OF LOCAL BINARY TEMPLATES

GQAEUO

Abstract

Resistive polymer composite materials are used in electrical power engineering, electrophysics, etc. The heterogeneous structure of such materials, determining their properties, makes it difficult to predict the characteristics. Therefore, it is relevant to search for new approaches to asses­sing the properties of resistive polymer composite materials

Resistive polymer composite materials based on rubbers with modification of the carbon black surface are considered, in which properties are largely formed by regulating the degree of agglomeration of carbon black and interphase interactions between electrically conductive and binding components. An assessment of the effect of these effects on the structure of materials by histograms of textures of macrostructure images using the method of local binary templates is proposed. Single-channel and three-channel (RGB model) histograms were used. To compare histograms of structures, the distances of Bhattacharya and Kulbak-Leibler were calculated. The correctness of their application to images of structures filled with technical carbon rubbers for estimating the volume electrical resistance and its changes under operating influences (temperature, aggressive environment, compressive load) is shown. It is concluded that the use of the Kulback-Leibler distance in the calculations when comparing the images of structures better reflects the dynamics of the electrophysical characteristics of materials under the considered operational impacts than the comparison of histograms by the Bhattacharya distance.