A brief introduction to the bonding mechanism between rubber and metal

Adhesion refers to the state in which two surfaces of the same or different materials are bonded together through various interfacial forces. For the adhesion between rubber and metal, the theoretical explanations include thermodynamic theory, adsorption theory, diffusion theory, electrostatic theory, interface chemistry theory and so on.

Because the rubber and metal are bonded together by adhesive, the bonding is not firm and falls off for some reasons. The reasons are as follows:

1. Treatment of metal framework: the degreasing of metal framework is not handled well; When the metal framework is sandblasted, the surface is damaged by steel shot blasting, and cracks invisible to the naked eye are formed on the surface; Metal framework and adhesive are polluted; Problems in the process of adhesive brushing and drying; Phosphating layer failure.

2. Improper selection of adhesive.

3. Improper selection of vulcanization system of rubber compound leads to.

4. Vulcanization time is too long.