| 摘要 |
PURPOSE: Provided is cross-linkable polyolefin resin composition having excellent water tree inhibition property and thermal-oxidation stability to improve electric property of high power electric cable and long term product life stability of underground power-distribution cable. CONSTITUTION: The resin composition comprises 1-3 parts by weight of cross-linking agent, 3-35 parts by weight of ethylene-butyl acrylate-carbon monoxide or ethylene-vinyl acetate-carbon monoxide as terpolymer and 0.1-0.4 parts by weight of anti-oxidant based on 100 parts by weight of polyethylene. The polyethylene has 0.8-0.935g/cm3 of density, 0.1-30g/10min of melt-index, 2-15 of Mw/Mn and 50,000-300,000 of weight average molecular weight and comprises homopolymer formed by free-radical initiation under 15,000 psi by means of tubular or autoclave reactor or copolymer of ethylene and comonomer formed using Ziegler-Natta catalyst or metallocene catalyst under 1,000 psi.
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