Surface Modification of Elastomers for Bonding

Abstract This paper describes detailed studies on the chlorination of vulcanized elastomer surfaces by an organic chlorine donor and the bonds obtained between such surfaces using a polyamide-cured epoxy adhesive. The bonds produced with a range of commercially important elastomers were found to retain their strength during extended seawater immersion better than those produced using the earlier surface treatments. The practical parameters of this technique have been investigated to establish the requirements for reliable and effective bonding. The chlorinated elastomer surfaces have been examined and explanations are offered for the changes observed.