Study on the breakdown and dielectric characteristics of Kraft Paper mixed with MMT

Abstract

It is the Kraft-MMT(K-MMT) which was composited with various percentage of MMT(Montmorillonite) that were prepared to be stirred in deionized water with different time to reinforce the properties of Kraft Paper. The breakdown and relative dielectric characteristics of K-MMT were investigated. According to corresponding data analysis,we concluded that the breakdown voltage of K-MMT (immerged oil) was increased more than 18 percent to 60kV/mm at 9 percent of MMT after 12 mins stirring. However,with the increasing of mixed MMT, the relative dielectric constant showed a trend of reduction correspondingly. The relative dielectric constant ranged from 2.29 to 2.42 at the frequency of 50 Hz.