Elastic CNT nanocomposites for Joule heating and tactic sensing devices

Abstract

Herein, we demonstrate carbon nanotube (CNT)/polydimethylsiloxane (PDMS) and CNT/Ecoflex composites, which have electric and thermo conductivity with elastic property. The result of the CNT elastomer composites properties are showed using Fourier-transform infrared spectroscopy, scanning electron microscopy, current voltage curve, and strain after cycle. Next, we demonstrate the thermo-transferring effect on the composites and elastomers for heat efficiency, which is caused by the Joule heating effect. Thereafter, the 7.27 wt% CNT/Ecoflex are Joule heated under 0.1 A with variable voltages. Finally, the CNT elastomer composites are investigated for tactile resistive sensing with response and delay time for hundred milliseconds memorized sensor.

Keywords:

• Carbon nanotube
• Ecoflex
• polydimethylsiloxane

Additional information

Funding

This work was supported by the of Korea (NRF) grant funded by the Korea government (NRF-2018R1D1A1A02085457).