Modeling sensor behavior of CNT/polymer nanocomposite

Abstract

This work investigates the electric conductivity and sensor behavior of CNT/polymer nanocomposite using a 3-dimensional CNT percolating network model, where the CNTs are allowed to deform and bend at crossed junctions of nanotubes. The comparison of the numerical results and experimental data showed a reasonably good agreement. Monte Carlo simulation reveal that besides tunneling resistance, deformation-induced resistance also plays a significant role in both electrical conductivity and sensor behavior of CNT/polymer composites. In our physics-based model, working mechanisms for high sensitivity at low CNT loading and asymmetric sensor behavior between tensile and compress strains were discussed.978-1-4799-5622-7/$31.00 ©2014 IEEE

Synergistic effects of hybrid conductive nanofillers on the performance of 3D printed highly elastic strain sensors

“…The addition of AgNPs improved the dispersion of the nanoparticles in the TPU matrix and reduced agglomeration between the CNTs. These agglomerates are more susceptible to damage and reorientation during stretching, which results in reduced sensitivity, durability, and linearity of the sensor [50,52].…”