MFR A new low MFR polymer composition power cable insulation and power cable

摘要

Wherein the peroxide is present in a corresponding amount to a X mmol -OO- / kg polymer composition, and wherein the sulfur containing antioxidant corresponds to a Y mmol -OH / kg polymer composition And Y ₁ Y Y? ₂ , X? 45 and 0.9 * Y + m? X ≤ n - k * Y, wherein Y ₁ and Y ₂ is 0.50 to 10, and m is 0.8, n is 70 and k is 4.7; And the polymer composition has a melt flow index (MFR) of less than 1.7 and the polymer composition comprises 2,4-diphenyl-4-methyl-1-pentene ), By weight of the polymer composition; Crosslinked polymer compositions and methods for their use, power cable insulation, power cables, utility in high voltage direct current (HV DC) and high voltage direct current (EHV DC) applications, and methods for reducing the electrical conductivity of crosslinked polymer compositions will be.