Abstract: This paper introduced the mechanisms of percolation and dualpercolation thresholds for conductive carbon-based polymeric composites and reviewed the research progresses in the conductive polymeric composites with a dual-percolation threshold, in which carbon materials mainly including carbon black and carbon nanotubes were used as conductive fillers. The development trend of conductive polymeric composites with dual-percolation threshold was prospected.

Key words: carbon black, carbon nanotube, double-percolation feature, percolation threshold, electrical conductivity, composite