부산대학교 도서관

Nanodielectrics have been one of the research hotspots in electrical insulation, since the concept was proposed in 1994. Numerous studies have shown that nanocomposites had better electrical, thermal and mechanical performances than microcomposites and undoped polymers. Especially, their excellent electrical properties, including low conductivity, high breakdown strength as well as suppressed space charge accumulation, make it possible to be the new generation of insulating materials, for instance, polyethlene-based nanocomposites for HVDC cables. These profound properties are thought to be ascribed to the great number of polymer-filler interfacial regions, ascribed to the high specific surface area of nanofillers. Graphene nanoplatelets, as a unique nano-scaled filler with a thickness of only an atomic layer, has an enormous specific surface area up to 2630 m2/g, which can significantly increase the polymer-filler interfacial regions in theory and advantage to exploit the further potentials of insulating nanodielectrics for HVDC cable application.