Mechanical Performance of Polystyrene-Based Nanocomposites Filled with Carbon Allotropes

Numerous studies have been performed on different aspects of the mechanical behavior polymer nanocomposites; however, results obtained still lack a comprehensive comparative analysis properties composites containing nanofillers shapes and concentrations subjected to static dynamic loads. Carbon were shown provide most significant improvement in elastic composites. In this paper, we present polystyrene-based nanocomposites filled with carbon allotropes shapes: spherical fullerene particles, filamentary multi-walled nanotubes, graphene platelets, fabricated by same technology. The influence shape concentration dispersed fillers viscoelastic stress–strain states was evaluated based tensile three-point bending tests, ultrasonic analysis. Comparison allowed us analyze their variations frequency. At low 0.1 wt% 0.5 all did not characteristics More efficient reinforcement observed at 5 wt%. Among filler types, some increase composite rigidity addition particles. introduction layered provided pronounced rise rigidity. weak frequency dependence loss tangent, which is characteristic amorphous thermoplastics, demonstrated for samples.