| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a semiconductive rubber composition for obtaining a semiconductive rubber component which uses an ion conductive polymer having low volume resistivity, and has excellent permanent compression set and rebound resilience; and a rubber crosslinked body formed by crosslinking the composition.SOLUTION: A semiconductive rubber composition contains 5-20 pts.wt. of (b) surface-treated calcium carbonate having a BET specific surface area of 40-90 m/g based on 100 pts.wt. of (a) an epichlorohydrin-based polymer. In addition, (b) the surface-treated calcium carbonate is preferably surface-treated with at least one type selected from the group consisting of aliphatic acids, resin acids and a silane coupling agent.</p> |
