| abstract |
An object of the present invention is to provide a semiconductive material that suppresses an increase in viscosity when kneaded unvulcanized material, exhibits excellent compression set resistance and wear resistance, and has small volume resistivity fluctuations even with respect to surrounding environmental fluctuations. A composition for vulcanized rubber and a vulcanized rubber material or member obtained by vulcanizing the composition are obtained. A rubber composition for vulcanization comprising the following components (A) to (E): A composition for a semiconductive vulcanized rubber comprising the following components (A) to (E): (A) Epichlorohydrin rubber 100 parts by weight (B) Halogenoalkoxysilane represented by general formula (I) 0.1 part by weight to 8.0 part by weight (R 1 -O) 3 -Si-R 2 -X (I) (In the formula, three R 1 s may be the same as or different from each other, a hydrocarbon group having 1 to 5 carbon atoms, R 2 is a hydrocarbon group having 1 to 9 carbon atoms, and X is a halogen atom). (C) Inorganic filler having silicic acid 5 parts by weight to less than 40 parts by weight (D) Zinc oxide 0.5 to 20 parts by weight (E) Vulcanizing agent comprising thioureas and / or sulfur 0.2 parts by weight to 10 parts by weight Figure] None |