In this work, it is presented results of the short-time dielectric breakdown test in high-density polyethylene (HDPE), with different additives levels (titanium dioxide, carbon black, antioxidant and UV stabilizer). For the dielectric breakdown test, an automated system developed in this department's polymer electrical properties lab has been used. The results have been analized by Weibull distribution. The parameters of Weibull distribution have been obtained by Graphical and Maximum Likelihood methods. One concluded that shape parameter β can be used to evaluate additives mixing condition in the compounds and graphical method better represents scattering of the results.
Dielectric strength; high density polyethylene; carbon black; titanium dioxide; Weibull
