Carbon-based piezoresistive polymer composites

Carbon-based polymer composites have acquired significant attention due to their outstanding properties. In this chapter, we analyse the most interesting characteristics of this type of polymer composites, from the structural to the applicative point of view. In particular, we will focus on the characteristics of carbon nanotubes and expanded graphite and on the electrical conductivity mechanisms. Piezoresistive properties of the composites are discussed with the aim to highlight their promising applications in the field of deformation-sensing devices.