Abstract
The development of wearable devices promotes the multi-functional applications of conductive materials. Herein, highly stretchable PADL organohydrogels which consist of lignosulfonate nanoparticles (nano-LGS) doped poly(acrylic acid-co-2-(methacryloyloxy)ethyl trimethyl ammonium chloride) in Glycerol/H2O were prepared by a facile strategy. The organohydrogels exhibited strong adhesiveness, high self-healing ability and conductivity. Benefiting from the use of Glycerol/H2O binary solvent system, the fabricated organohydrogels showed anti-freezing property at −40 °C. Notably, nano-LGS acted as the enhancement particles to improve the mechanical properties, antibacterial activity as well as conductivity of PADL organohydrogels. Furthermore, strain sensors constructed by the organohydrogels can monitor human movements with high sensitivity (gauge factor of 7.91). Besides, they can detect handwriting as well. Thus, this work could provide a promising strategy for the fabrication of the self-healing and conductive organohydrogels in the application of wearable electronic devices.
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