Synthesis and Fabrication of Supramolecular Polydimethylsiloxane-Based Nanocomposite Elastomer for Versatile and Intelligent Sensing

High-performance strain sensors featuring self-healing ability and high stretchability are desired for human motion detection, soft robotics, diver intelligent applications. Herein, a novel elastomer was synthesized via facile one-pot polycondensation reaction between bis(3-aminopropyl) terminated polydimethylsiloxane 2,4’-tolylene diisocyanate, followed by introducing carboxyl-functionalized multiwalled carbon nanotubes (CNTs). The physically entangled linear molecular chains multiple hydrogen bonds endowed with remarkable healing efficiency of 98.1% outstanding over 1000%. Owing to the conductive network constructed uniformly dispersed CNT, nanocomposite elastomer-based sensor achieved gauge factor 2.43 its sensing performance could be well regained after self-healing. successfully used detecting various motions distinguishing facial microexpressions. Moreover, applied on grip ball woolen glove as units rendered them force detection sign language recognition. This work offers new route promising development recyclable sustainable high-performance prospects advanced