| abstract |
The present invention relates to a polymer composition comprising a polymer (a) and a nanoparticulate filler (b), an electrical device such as a power cable, and a method of manufacturing an electrical device, wherein the polymer composition comprises a Dvol% (B), which has a free radius and a two-dimensional (2D) center-to-center average distance (nm) from one nanoparticle to its nearest neighbor nanoparticle neighbors , Which is R1st nm and the polymer composition exhibits a dependency between the center-to-center average distance R1st to the nearest neighbor and the volume percent Dvol volume%, R1st = E / (Dvol + 0.3) + F, wherein Dvol 1 ≤ Dvol ≤ Dvol 2 , E 1 ≤ E ≤ E 2 , F 1 ≤ F ≤ F 2 , Dvol 1 is 0.010, Dvol 2 is 4.4, E 1 is 100, E 2 Is 280, F 1 is 50, and F 2 is 140. |