Time-Dependent Rheological and Electrical Properties of LLDPE/EVA Blends Containing Graphene

In this study, the dynamic viscoelastic moduli and electrical conductivity of blends of linear low density polyethylene (LLDPE) and ethyl vinyl acetate (EVA) presenting a co-continuous morphology, filled with commercial graphene (GN) nanoplatelets, have been assessed as function of thermal annealing time and correlated with changes in the morphologies of the blends. It was observed that both the storage modulus and electrical conductivity of the filled blends increased during the early stage of annealing and then stabilized over time, These evolutions were attributed to a coarsening of blend's morphology which was observed by scanning electron microscopy.