ACS Applied Engineering Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 16, 2024
Multifunctional flexible textile conductors, such as those capable of physiological signal detection, electromagnetic interference (EMI) shielding, and thermal management, are highly desirable for stretchable wearable electronic devices, but there still challenges in good performance conformability on human skin. Liquid metals (LMs) possess ideal characteristics fluidity, high conductivity, low toxicity, making them inherently soft suitable the fabrication biosensors. In this work, a multifunctional liquid metal-coated olefin block copolymers (OBCs) film with elasticity incorporating three-dimensional conductive network, is developed EMI motion monitoring, bioelectric Joule heating via an electrospinning method spraying process. The OBCs exhibited outstanding large elongation strain 1560% tensile strength 0.48 MPa. excellent conductivity metal endows LM/OBCs shielding 69.38 dB; even after 1000 stretching cycles, average SE remains at 58.89 dB. Attributed to OBC, prepared wide sensing range fast response 200 ms, indicating monitoring capability. When employed electrocardiography electromyography, skin precise quality, outperforming commercial electrodes. Additionally, temperature could be up 71.9 °C supplied voltage 0.4 V. This work demonstrates that suggests great potential smart textiles electronics.
Language: Английский