Application research of polypropylene film

The biaxially oriented polypropylene film (BOPP) is one of the most widely used solid dielectrics in power capacitors. The research results of BOPP films over many years are summarized in this paper, which includes the factors influencing electric withstanding capability, compatibility, as well as the impregnated performance of BOPP films. The application performance of the BOPP film is also tested by a large quantity of experimental data in this paper.