Role of Silicas and Silicates in Rubber Adhesion

Abstract

Abstract The addition of resoreinol plus hexamethylenetetramine and/or hydrated silicas to rubber compounds can result in increased adhesion to textiles, wire, and other rubber compounds. Silica prevents loss of adhesion on aging or at elevated temperatures. The increase in adhesion is due, depending on the system, to improved wetting and hydrogen-bonding between the rubber compound and the substrate to which it adheres.