Polycarbonate composition as well as preparation method and application thereof

The invention belongs to the technical field of engineering plastics, and particularly relates to a polycarbonate composition as well as a preparation method and application thereof. The polycarbonate composition is prepared from the following components in parts by weight: 60 to 95 parts of polycarbonate resin, 10 to 20 parts of permanent antistatic agent, 0.2 to 1.0 part of ionic antistatic agent, 1 to 20 parts of polytetrafluoroethylene, 1 to 5 parts of compatilizer, 0.1 to 0.5 part of ester exchange inhibitor and 0.1 to 0.5 part of antioxidant. The polycarbonate composition has high dielectric strength and low surface resistance at the same time, can be applied to high-voltage protection, breaks through the limitation that carbon conductive filling materials (carbon black, carbon nanotubes, graphene, carbon fibers and the like) cannot be subjected to high-voltage protection, greatly expands the application scenarios of the materials, and has good application prospects. The method has wide application spac