Electrically conductive multiphase polymer blend carbon-based composites

Abstract

The present review focuses on summarizing key advances made on controlling polymer blend morphology to improve electrical conductivity in carbon-based polymer composite materials, including those based on carbon black, carbon nanotubes, and graphene. Fundamentals for controlling polymer morphology and the distribution of conductive fillers in various polymer composite systems and the impact on the electrical, rheological, mechanical, and thermal properties are reviewed. The concept of triple percolation and its beneficial effect on electrical conductivity is then reviewed.

Phase structure, rheology and electrical conductivity of co-continuous polystyrene/polymethylmethacrylate blends filled with carbon black

“…Simultaneously, the percolation threshold is reduced as the filler is not distributed homogeneously in the material [15][16][17][18][19]. This effect is known as double percolation.…”

Characterization of nanocomposite filaments developed for additive manufacturing

“…As the rubber content increased, conductive channels became more effective, due to the increased concentration of carbon nanotubes within the narrowing network of LLDPE. This approach, based on selective localization of MWNT in only one of the phases, offers an innovative method of increasing/adjusting the conductivity by employing polymeric composites with selective conductor location or composites with varying amounts of each phase [7]. There was not a significant difference between the conductivities of compression molded and 3D printed samples as discussed in our recent publication [5].…”

Structure development in co-continuous polymer blends filled with carbon black during annealing

“…Pronounced suppression of structure coarsening during annealing was observed in filled co-continuous blends with selective localization of the filler particles in one phase or at the interface [2,3]. Simultaneously, the value of percolation threshold is reduced as the filler is not distributed homogeneously in the material [4][5][6][7]. This effect is known as double percolation.…”