V. V. Portnyagina, N. N. Petrova, N. P. Ovchinnikov, A. N. Martynova

STUDYING THE STRUCTURE AND PROPERTIES OF ELASTOMERIC COMPOSITES DESIGNED TO OPERATE UNDER EXTREME CONDITIONS

The paper presents results of studying the main operational properties and structure of sealing rubbers based on propylene oxide rubber and ultrafine polytetrafluoroethylene intended for extreme operating conditions. It is shown that, to achieve a positive effect on the material properties, it will suffice to add to the rubber compound 0.5–1 wt % of polymer per 100 wt % of rubber. This is due to the high activity of UPTFE particles, their nanostructured arrangement and better uniformity of their distribution in the volume of the elastomeric matrix. RF and US patents for rubber formulations have been taken out.

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