ABSTRACT
Nanographite–polymer composites are extensively studied worldwide. Research efforts are guided by the very high values of modulus of elasticity, mechanical strength, and electrical conductivity, exhibited by the nanocarbon filler. Embedding carbonaceous nanofiller within a polymer matrix has been proved to be beneficial to the mechanical and physical properties of carbon–polymer nanocomposites, even at a low loading level. An overview of the fabrication procedures is presented, since the state of the achieved dispersion of nanoinclusions and the interfacial effects between matrix and reinforcing phase are crucial for the overall performance of the nanocom-posites. The morphology, mechanical properties, thermal stability and conductivity, and electrical behavior of carbon nanocomposites are also presented and discussed. Graphitic nanofillers, such as CNTs, graphene, and graphite nanoplatelets, when suitably dispersed in a polymer matrix, provide a strong impetus for both thermomechanical and electrical performance. However, the effect on the electrical properties appears to be more pronounced. Electrical properties include the transition from the insulating to the conductive behavior at a low critical concentration of the conductive phase, the dielectric response, and the energy storage efficiency of the nanocomposites. Finally, current and potential applications of nanographite–polymer composites are discussed.
