ETHYLENE/PROPYLENE/NON-CONJUGATED VULCANIZED RUBBER COMPOSITE AND BONDING METHOD THEREOF

摘要

PURPOSE:To enhance the bonding strength of a rubber composite by bonding an olefinic elastomer to an ethylene/propylene/non-conjugated rubber vulcanizate. CONSTITUTION:An olefinic elastomer and an ethylene/propylene/non-conjugated rubber vulcanizate are bonded by injection welding to obtain an ethylene/ propylene/non-conjugated vulcanized rubber composite. At this time, this olefinic elastomer is composed of a partially crosslinked elastomer compsn. prepared by dinamically heat-treating 100 pts.wt. of a compsn. consisting of 15-80wt.% of a polypropylene resin and 85-20wt.% of ethylene/alpha-olefin copolymer rubber and 0.1-5 pts.wt. of a polyfunctional compd. in the presence of org. peroxide.