ETHYLENE-PROPYLENE RUBBER COMPOSITION AND POWER CABLE CONNECTION MEMBER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain an ethylene-propylene-diene rubber composition having normal-temperature shrinkability (low permanent elongation) and not causing breakage by heating in a diameter-extended stretched state (extension heating breakage resistance) and a power cable connection member using the same.

SOLUTION: This ethylene-propylene-diene rubber composition is obtained by adding at least a crosslinking agent of organic peroxide, a crosslinking auxiliary of a polyfunctional allyl group-containing compound and carbon black to an ethylene-propylene-diene terpolymer. The amount of the carbon black added is 30-120 parts wt. based on 100 parts wt. of the ethylene-propylene-diene terpolymer and the carbon black has 150 nm-400 nm average particle diameter to give the ethylene-propylene-diene rubber composition. This power cable connection member is obtained by heating and forming the rubber composition.

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