Abstract

The influence of three nanostructured carbon materials, nonfunctionalized and functionalized with amino and oxygen-containing groups, on the elastic-strength properties and resistance of rubbers to heat aging was studied. The structure of vulcanizates before and after heat aging was investigated by the method of equilibrium swelling. Compositions based on polar rubber of special purpose BNKS-18, filled with low-activity carbon black of the N772 grade in the amount of 25 and 50 phr. It was established that the introduction of carbon nanomaterials into elastomeric compositions based on polar rubber BNKS-18 with a low-activity carbon black of the N772 grade leads to the production of vulcanizates with 3.1–36.1% higher elastic indicators, both up to and after heat aging and differing in strength properties by 6.0–11.3%, depen­ding on the type of nanomaterial. It has been determined that the use of all carbon nano-materials in dosages from 0.1 to 0.3 phr at a certain content of carbon black enhances the resistance of rubbers to temperature-force fields, which is associated with their influence on the formation of the nature of cross-links during vulcanization and the possible participation of carbon nanomaterials in the course of thermal oxidative destruction in rubber.