Ternary thermoresistive strain dependent nanocomposite for transverse mode analysis of conductors

Abstract

A ternary carbon nanotube (CNT) carbon black (CB) nanocomposite is analyzed studying the synergistic effect between CNT and CB on electrical conductivity. The assessment of the thermoresistivity and piezoresistivity of the nanocomposite with dispersed nanofillers of different diameters and conductivity ranges is investigated. By considering CBs with CNTs in the developed network model, Monte Carlo simulation results correlate well with experimental data. The effects of barrier height, aspect ratio and transverse mode are investigated. To guarantee the convergence of piezoresistivity, the number of CNTs was selected larger than a threshold amount, and this enforced a modified calculation scheme using parallel rows of series resistors formed through conductors. Results indicate that the electrical resistance decreased with increased temperature with higher temperature coefficient of resistance producing more prominent drops in comparison with the polymer thermal expansion minor effect. On this basis, the center mechanism about improving the electrical properties of the composite were high intrinsic conductivity and large aspect ratio CNTs selected with small concentrations of CB nanoparticles. The results demonstrate that increasing the number of transverse modes enhances thermoresistivity by modifying tunneling resistance.