Self-healing stretchable wiring using conductive magnetic powder

Abstract

We report a novel stretchable wiring that has self-healing property. The wiring was fabricated by filling conductive magnetic powder into a hollow tube of silicone material. This stretchable wiring has good performance, which is conductivity of 1715 S/cm under nonstretch status and stretchability of 150% with conductivity. In addition, this wiring has good credibility, i.e. enduring 1000 cycles tensile test under strain of 100%. Furthermore, to confirm self-healing property, we applied excessive strain of 250% intentionally. The experiment result shows a fine self-healing property, that the wiring retrieved conductivity at any time by releasing wiring.