| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a semiconductive roll that has suppressed contact heterogeneity after being left unused in contact with another member during storage.SOLUTION: There is provided a semiconductive roll that includes: a conductive support 31; and an elastic layer 33 that is arranged on the conductive support, is a crosslinked material of a rubber composition containing 100 parts by mass of a rubber component having epichlorohydrin rubber as the main component, 1.0 parts by mass or more and 3.1 parts by mass or less of 4,4'-dithiodimorpholine, and 2.5 parts by mass or more and 7.5 parts by mass or less of zinc diethyldithiocarbamate, and has a permanent distortion of 10μm or less, where within a frequency range measured by an AC impedance method of 100 Hz or more and 1 MHz or less, a resistance component calculated from the Cole-Cole plot is 1.0×10Ωor more and 5.0×10Ωor less.</p> |
