Flexible nanocomposites play an increasing role as electrodes and sensors in wearable electronics and sensing elements in health monitoring and sports applications. Graphene-based flexible polymer nanocomposites, as well as polymers with metallic nanowire fillers are promising materials in this context. However, anticipation of electrical properties of hybrid flexible materials based on nanofillers are generally complex, when considering also their frequency and voltage dependencies, which need to be taken into account for the design of electrode materials for dedicated applications. This study showcases at the example of graphene-based silicone hybrid nanocomposites, with and without silver nanowires, striking effects of the nanofiller concentration and composition on the resistive and capacitive contributions of the electrical properties of hybrid nanocomposites. Trends of their mechanical and electrical properties, as analyzed by compressive strain-stress analysis and electrical impedance spectroscopy are discussed.
