**4.1 Electrical properties**

The addition of CNTs to composite materials has had a significant impact on improving the conductive properties of nanocomposites. It is reported that the addition of CNTs improves the mechanistic and thermal characteristics of nanocomposites. Multiscale strengthening with NPs greatly improves enthalpy and electronic efficiency in related NCs. Conventional filters, such as carbon and glass filters are a viable solution in developing a combination of multiple functions. The doping of carbon black and nanotubes has led to the improved electronic operations of polymer film and organic sheets. Electrical conductivity depends on the concentration or the amount of filling material applied to nanopolymers. Semicrystalline polyamino compounds have shown better electrical performance than noncrystalline polycarbonate. When polymer films are applied to an organic sheet in nanofibers agglomeration, it causes an increase in electrical activity. The insulator material such as polycarbonate can be made conductive by adding it to nanocomposite material of varying compositions. The cheapest plastic known is made from nanocomposite material has both mechanical and optical features and is gaining future use. By assembling the right amount of CNTs in plastic, it becomes an electrical device. Cheap plastic is used to make optical discs, used in high-performance air-conditioning products and to shield these from electrical transformations and pulsation that cause the failure of the product. By changing the number of CNTs in polycarbonate, the performance of nanocomposite is also improved. The mixing of conductive particles to the polymer has a reasonable impact on the dielectric properties of composites. By the advent of electrical devices (capacitors, resistors, and others) on printed circuit boards, advanced compounds of nanocomposites have prevailing properties, such as:

