Influencing Factors on the Dielectric Properties of Linear Low-density Polyethylene

We investigated the factors that influence the dielectric properties such as breakdown strength and conduction current of linear low-density polyethylene. The film with a lower melt-flow-rate shows a higher dielectric strength. Furthermore, the catalyst to polymerize the film affects the dielectric strength, although additives in the film scarcely affect its electrical properties. The effect of crosslinking on the dielectric breakdown in linear low-density polyethylene was found to be similar to the one in low-density polyethylene.