Healable Cotton-Graphene Nanocomposite Conductor for Wearable Electronics

Electrically conductive materials based on cotton have important implications for wearable electronics. We have developed flexible and conductive cotton fabrics (similar to 10 Omega/sq) by impregnation with graphene and thermoplastic polyurethane-based dispersions. Nanocomposite fabrics,display remarkable resilience against weight-pressed severe folding as well as laundry cycles. Folding induced inicrocracks can be, healed :easily by hot-pressing, restoring initial electrical conductivity. Impregnated cotton fabric conductors demonstrate better mechanical properties compared to pure cotton and thermoplastic polyurethane maintaining-breathability. They,also resist environmental aging such as solar irradiation and high humidity.