Providing stability of properties of filled polymers under the joint effect of exploitation factors

The present work is devoted to a search for the structural parameter that can be used to adjust the structure of a resistive polymer composite material stable against the action of exploitation factors. The objects of research are polymers filled with technical carbon. Various approaches have been developed for them to control the stability of their properties: application of polymers of different chemical compositions and electroconductive filler with different concentrations, grades, and surface modifications. The following main problems have been formulated: based on an analysis of physical structurization processes, to reveal geometrical parameters determining the stability of properties under the joint effect of the exploitation factors; to adjust the structural parameter that responds to these factors; to check its efficiency; to estimate the importance of factors that influence the stability of the properties; and to propose an approach to the adjustment of the main material components to provide the stability of properties under the effect of the exploitation factors. The structural parameter was adjusted based on the physical principles developed earlier by the authors of the present report and other authors, whose publications are given in the References. It has been established that the stability of properties to the joint influence of the exploitation factors can be determined by the structural parameter that responds to branching of the electroconductive grid in a comparative analysis of the known material and the material being synthesized. Its application allows the problem of adjusting the material components to be also solved in the case in which identical values of the specific volume electrical resistances are formed for different elemental compositions.