ABSTRACT
Polymer aging is intensified by treatment of a polymer with ultraviolet radiation, heat, irradiation by X-rays and many other environmental agents. The study of interaction of polymers, participating in an ECPC composite, with oxygen during the aging process under application of electric charge showed that the application of PE with stated optimal admixture of Se and S leads to an increase of its useful properties by less than 50%, on average. The influence of polymer aging at O2 treatment with electric current was observed not only on polyolefins and polyorganosiloxanes. Electric conductivity decreases and the ST-parameter and hemiluminescence intensity increase with the increase of aging duration, again indicating the presence of an oxidation process. Oxidation influence is supposed to be less critical compared with carbon black structure decomposite in the thermal aging process. The methodology proposed by us allows us to investigate thermal electrooxidation kinetics of polymer composites in a wide range of temperatures, partial pressures and voltages.
