| abstract |
PROBLEM TO BE SOLVED: To provide a semi-conductive silicone rubber roll in which a semi-conductive silicone rubber layer coated on an outer peripheral surface of a conductive core material has a stable resistance value against a change in a carbon blending amount or the like. I do. SOLUTION: The semiconductive silicone rubber layer is a carbon black obtained by pyrolysis of natural gas, and has a nitrogen adsorption specific surface area of 9.0 to 9.5 m 2 / g, DB P oil absorption of 34~40cm 3 / 100g, average particle size 2 It is formed of a semiconductive silicone rubber composition containing 40 to 320 nm of MT carbon. |