申请人:Dow Global Technologies LLC
公开号:US10093788B2
公开(公告)日:2018-10-09
The process for making extra high voltage cable insulation is improved by using a composition comprising in weight percent based on the weight of the composition: (A) 95 to 99.9% of an ethylene-based polymer; (B) 0.2 to 2.5% peroxide; (C) 0.01 NI to 0.5% of a sulfur-containing first antioxidant having at least one —S(CH2)2CO2R group, wherein R is a C6 to C20 alkyl; (D) 0.001 to 0.009%) of a phosphorus-containing second antioxidant that does not contain a —S(CH2)2C02R group, wherein R is a C6 to C20 alkyl; (E) Optionally, an organic nitrogenous base; and (F) Optionally, a phenolic third antioxidant that does not contain a —S(CH2)2C02R group, wherein R is a C6 to C20 alkyl.
制造特高压电缆绝缘层的工艺是通过使用一种组合物来改进的,该组合物包含以重量百分比为基准的:(A)95%至99.9%的乙烯基聚合物;(B)0.2%至2.5%的过氧化物;(C)0.01NI至0.5%的含硫第一抗氧化剂,该抗氧化剂具有至少一个-S(CH2)2CO2R基团,其中R是C6至C20烷基;(D)0.001%至0.009%)的不含-S(CH2)2C02R基团的含磷第二抗氧化剂,其中R为C6至C20烷基;(E)任选地,有机含氮碱;和(F)任选地,不含-S(CH2)2C02R基团的酚类第三抗氧化剂,其中R为C6至C20烷基。