Impedance and Susceptance Characterization of Multiwalled Carbon Nanotubes with High Density Polyethylene-Carbon Black Nanocomposites

Enhanced positive temperature coefficient behavior of the high-density polyethylene composites with multi-dimensional carbon fillers and their use for temperature-sensing resistors

“…[22][23][24] Some researchers employed the carboxylated MWNT (c-MWNT) to increase the conductivity of polymer-based PTC composites. [25][26][27] However, some intrinsic drawbacks still exist in the materials, 28,29 such as, (1) low PTC intensity resulting from the oxidation of conductive particles at elevated temperature and (2) poor PTC reproducibility due to the irreversible motion of conductive particles during thermal cycling process. These drawbacks greatly restrict the application of the polymer-based PTC materials in some critical circumstances, such as, high temperature, large applied currents, and high applied voltages.…”