Key points are not available for this paper at this time.
Recently, the layered structure in flexible conductive composites has attracted widespread interest owing to its potential to resolve the conflict between conductivity and self-healing performance. However, the flexible conductive composites equipped with layered structure still face the challenges of long self-healing time, low conductivity, and poor interface compatibility. Herein, we propose a strategy to address the above issues through an integrated layered structure where the oxidized natural rubber latex (oNRL)/sodium alginate (SA)/carbon nanotubes self-healing layer mixture permeates and seamlessly adheres to the oNRL/SA/silver nanowires (Ag NWs) layer, creating an integrated layered structure. The CNT and Ag NWs endow composites with excellent photothermal conversion performance (170 °C at 0.55 W/cm 2 ) and ultrahigh conductivity (862 S/m), respectively. Meanwhile, the composites have no interface problems since the self-healing layer and conductive layer bonded together to be an integral structure during film-formation. The resultant composites have acceptable tensile strength of 2 MPa and stretchability up to 429 %, and excellent photothermal self-healing performance. The conductivity of composites after damage can be restored to 90.3 % at an irradiation of 0.37 W/cm 2 for 3 min. The composites also have fascinating ultra-sensitivity (GF ≈ 184.8) and good reliability, which make it applicable to human motion detection.
Kong et al. (Mon,) studied this question.