MOLDED RUBBER VIBRATION INSULATOR AND PREPARATION THEREOF

摘要

PURPOSE:To prepare the title insulator which has an improved resistance to thermal aging and is hardly broken by fatigue even under a dynamic condition by using a vulcanizate of a chlorinated ethylene-alpha-olefin copolymer rubber having specified chlorine content and Mooney viscosity as the main material of the insulator. CONSTITUTION:The title insulator is prepd. by molding and vulcanizing a chlorinated ehtylene-alpha-olefin copolymer rubber having a chlorine content of 20-40wt.% and a Mooney viscosity [ML1+4(121 deg.C)] of 10-190. A vulcanizing agent is added to the rubber before vulcanizing. Effective vulcanizing methods for the rubber are triazine vulcanization and org. peroxide vulcanization.