*2.14.2 Electrical properties*

Electrical behavior is one of the most interesting features of graphene/polymer nanocomposites, enabling them to be employed in electronics applications because of their low electrical resistance and high electrical conductivity. When used as filler, graphene might raise the material conductivity of an insulator polymer, such as poly (vinyl alcohol) in **Table 1**. To make the nanocomposites conductive, the percentage of the conducting filler should be above the electrical percolation threshold where a conductive network of nanoparticles filler is formed. However, GO is an insulator and not an ideal filler for producing electrically conducting composites. Another method involves GO surface modification, reduction to recover, at least partially, the electrical and thermal conductivity through restoring the graphitic network of the sp2 hybridized carbon by reducing the carbon–oxygen function to have reduced graphene oxide or even pristine graphene [104, 109–111].
