| 摘要 |
A semiconducting composition for the inner semiconducting layer of an electric cable, an electric cable incorporating the composition, and a method of producing a cross-linked inner semiconducting layer of an electric cable are disclosed. The semiconducting composition comprises, based on the total weight of the composition, (a) 30-90% by weight of an ethylene copolymer, (b) carbon black in an amount at least sufficient to make the composition semiconducting, (c) 0-8% by weight of a peroxide cross-linking agent, (d) 0-8% by weight of conventional additives, characterized in that said ethylene copolymer (a) is an ethylene-methyl (meth)acrylate copolymer, preferably comprising 5-25% by weight of methyl(meth)acrylate, based on the weight of the copolymer. |
