Process for producing rubber-based composite material

摘要

A process for producing a rubber-based composite material including steps of laminating a rubber compound onto a substrate, with a bonding layer of metal or metal compound interposed therebetween, and subsequently vulcanizing the rubber compound, characterized in that vulcanization is carried out by controlling the composition of the rubber compound and the amount of metal in the bonding layer such that the following equation is established:wherein x is the amount (atom %) of metal in the bonding layer, and y is the slope (kgf.cm/min) of the vulcanization curve of the rubber compound. The rubber based composite material retains good bond strength even when used in such a way that its bond interface is in contact with water. In addition, it has good adhesion to a substrate treated by conversion treatment.