Influence of characteristics of adhesional additives on properties of rubber mixtures based on SKI-3

摘要

The performance of composite structural rubber materials directly depends on the bond strength between the metal and the polymer. Steel reinforcement to increase the bond strength with rubber is brass, to increase the number of chemical bonds with the vulcanizate. At the same time, various additives are introduced into the rubber composition, which can increase the adhesion of rubbers to metal cord. The use of blocked urea-based isocyanates as adhesion promoters is proposed. The studies made it possible to hypothesize the relationship between the particle size and the electrokinetic potential of blocked urea-based isocyanates with the strength of brass-metal cord-rubber bonding. The results obtained indicate that the greater the electrokinetic potential of the synthesized additives and the lower the average particle size, the better the additive is distributed in the rubber compound and affects the formation of the adhesive layer at the brass-metal cord-rubber interface.