Abstract
In modern polymer materials science, special attention is paid to the rational use of industrial waste as additional sources of raw materials. A new natural complex carbon–mineral filler (CMF) is a byproduct of coal shale mining—a layered rock with a significant content of carbonized plant particles. It was previously established that its introduction into polyethylene significantly inhibits the processes of polymer thermo-oxidative aging. To identify the causes of the observed effect, the chemical compositionof CMF was studied.