HIGH DAMPING RUBBER COMPOSITION AND RUBBER BEARING USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a high damping rubber composition which has high damping performance and vulcanization rate and is suitable for use in large bearings e.g. for bridges and buildings and a rubber bearing using the rubber composition.

SOLUTION: The isolation bearing is composed of stiffening plates 1 and rubber layers 2 laminated alternatively with one on the other to form an integrated single body. The rubber layers 2 contain components (A)-(C) and are formed of a high damping rubber composition in which the content of the component (B) is set in the range of 5-100 pts.wt. relative to 100 pts.wt. of the component (A). (A): Diene rubber. (B): Pitch-based carbon fiber filler having an average fiber diameter of 4-15μm and an average fiber length of 10μm-10 cm. (C): Sulfur-based vulcanizing agent.

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