Ultrastretchable Thermo- and Mechanochromic Fiber with Healable Metallic Conductivity
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초록
내용
This work demonstrates a facile way to fabricate ultrastretchable thermochromic elastic fiber with a metallic conductivity. A thermochromic pigment adds into the stretchable and elastic polymer with Young’s modulus of 0.5 MPa, and a hollow elastic fiber is produced through spin-rolling process. Once the fiber forms, liquid metal (Eutectic Gallium-Indium Alloy, EGaIn) is injected into the fiber. The fabricated fiber with a liquid metal core shows uniform and rapid color change along the fiber when current is applied. This fiber that is controllable and facile to adjust color would be used for applications in electronic textiles, soft robots and stretchable displays. This work was supported by BK21 FOUR program and Basic Research Laboratory Program (2020R1A4A1018259).