| 摘要 |
A composition for an electric cable is described. The composition is characterised in that it comprises an ethylene plastic and a compound of the general formula R<1>O[C3H5(OR<2>)O]nR<3> (I) where n >/=1, R<1>, R<2> and R<3>, which are the same or different, designate hydrogen or the residue of a carboxylic acid with 8-24 carbon atoms, with the proviso that there are at least two free OH groups and at least one residue of a carboxylic acid with 8-24 carbon atoms in the molecule. Preferably, n = 3-12 and R<1>, R<2> and R<3> designate hydrogen or stearoyl and the compound of formula (I) is present in an amount of 0.05-2 % by weight of the composition. The compound of formula (I) may be combined with other additives, such as polyethylene glycols. The composition may be used as an insulating layer or a semiconductive layer in an electric cable. |
