Clay nanoparticles have more ability for improving dielectric
strength of polyethylene materials than fumed silica nanoparticles; but fumed silica nanoparticles have more ability for
improving capacitive charge current of polyethylene materials
than clay nanoparticles. Increasing percentage of nanofillers
increasing accumulation electric withstands of insulation
forces; therefore, it is recommended that nanofillers have been
excellence dispersion and did not exceed 5 wt.% in the polyethylene base matrix.