Abstract
Some regularities of degradation of PE-PP blends low in content (up to 5 wt %) of one of the components under the action of electric discharge and ozonization were studied. The electric aging is mainly explained by the effect of oxidation processes, which were investigated via estimation of the content of C=O groups, which depends on the blend composition. The data on changes in the dielectric characteristics of blends subjected to the action of electric discharge and ozone were obtained. It was shown that the blends of PE low in PP content have the highest tolerance against the electric discharge and ozonization, whereas the blends of PP with a low content of PE demonstrate the minimum stability.
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