Smart magnetic composited carboxymethyl cellulose/sodium alginate based 3D textiles with multi-responsive characteristics for flexible electronics devices

Smart magnetic textiles with multi-responsive characteristics, are promising building blocks for the flexible electronics areas of actuator, soft robot, and carrier rocket, etc. However, the fabrication of magnetic textiles with outstanding electromagnetic performances still remains great challenges. Here, smart magnetic three-dimensional (3D) textiles fabricated from natural macromolecule-based fibers composed of carboxymethyl cellulose (CMC) and sodium alginate (SA) contain Fe 3 O 4 knitting fabric, Ppy coating layer, and PAN/BaSO 4 electrospinning films were proposed, and their multi-functional characteristics were also fully evaluated. Notably, the magnetic textiles exhibited the relatively good radiative cooling effect under 100 μW/cm 2 light radiation encapsulation, and a reduction of 4.2 °C compared to that of the fabric before encapsulation, the multi-responsive characteristics including sensitivity, magnetic driving performances, and electromagnetic shielding property were good presented, and the cell phone radiation could be reduced from 57.22 μW/cm 2 to 10.745 μW/cm 2 for incoming signals. This study employed an efficient and environmentally friendly fabricating strategy for magnetic textiles with multi-responsive characteristics, showing great potential for the flexible electronic soft material application.