Durable and Wearable Self-powered Temperature Sensor Based on Self-healing Thermoelectric Fiber by Coaxial Wet Spinning Strategy for Fire Safety of Firefighting Clothing

Qing Jiang, Yuhang Wan, Yi Qin, Xueru Qu, Mi Zhou, Siqi Huo, Xiaochun Wang, Zhicai Yu, Hualing He

Advanced Fiber Materials ›› 2024, Vol. 6 ›› Issue (5) : 1387-1401.

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Advanced Fiber Materials ›› 2024, Vol. 6 ›› Issue (5) : 1387-1401. DOI: 10.1007/s42765-024-00416-6
Research Article

Durable and Wearable Self-powered Temperature Sensor Based on Self-healing Thermoelectric Fiber by Coaxial Wet Spinning Strategy for Fire Safety of Firefighting Clothing

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Abstract

Self-healable electronics with self-recoverable mechanical properties show a lot of potential in improving the reliability and durability of wearable electronic devices, but it is still challenging. Herein, a self-healing core-sheath thermoelectric (TE) fiber-based temperature sensor was continuously fabricated by coaxial wet-spinning strategy, whose core layer and sheath layer are, respectively, pure Ti3C2Tx MXene and self-healing silk sericin (SS)/oxide sodium alginate (OSA) composite. The prepared SS/OSA@MXene core-sheath TE fiber exhibits accurate temperature-sensing at 200–400 °C based on a linear relationship between TE voltage and temperature difference. The core-sheath TE fiber that can be integrated into firefighting clothing and timely alert firefighters to evacuate from the fire before the protective clothing becomes damaged. When exposed to flames, SS/OSA@MXene can rapidly trigger a high-temperature warning voltage of 3.36 mV within 1.17 s and exhibit reversible high-temperature alarm performance. In addition, the fractured SS/OSA@MXene can restore up to 89.12% of its original strain limit at room temperature because of the robust yet reversible dynamic covalent bonds between SS and OSA. In this study, an ingenious strategy for developing a durable and wearable TE fiber-based self-powered temperature sensor was proposed. This strategy has promising application prospects in real-time temperature detection of firefighting clothing to ensure the safety of firefighters operating on a fire scene.

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Qing Jiang, Yuhang Wan, Yi Qin, Xueru Qu, Mi Zhou, Siqi Huo, Xiaochun Wang, Zhicai Yu, Hualing He. Durable and Wearable Self-powered Temperature Sensor Based on Self-healing Thermoelectric Fiber by Coaxial Wet Spinning Strategy for Fire Safety of Firefighting Clothing. Advanced Fiber Materials, 2024, 6(5): 1387‒1401 https://doi.org/10.1007/s42765-024-00416-6
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Funding
Guiding Project of Natural Science Foundation of Hubei Province(2022CFC072); Guiding Project of Scientific Research Plan of Education Department of Hubei Province(B2022081); Science and Technology Guidance Program of China National Textile and Apparel Council(2023004)

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