USE OF PRECIPITATED SILICON DIOXIDE CONTAINING ALUMINIUM AND 3-ACRYLOXY-PROPYLTRIETHOXYSILANE IN COMPOSITION OF ONE OR MORE ISOPRENE ELASTOMERS

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to combined use in a composition of one or more elastomers, comprising an isoprene elastomer, of precipitated silicon dioxide which contains aluminium as a reinforcing inorganic filler and 3-acryloxy-propyltriethoxysilane as an agent for binding the inorganic filler with the elastomer. Content of aluminium in the precipitated silicon dioxide is higher than 0.5 wt %.;EFFECT: invention improves wear-resistance and the hysteresis factor, while maintaining high rheological, mechanical and dynamic properties of the composition.;24 cl, 14 tbl, 7 ex