首页|Waste Cotton-Derived Fiber-Based Thermoelectric Aerogel for Wearable and Self-Powered Temperature-Compression Strain Dual-Parameter Sensing

Waste Cotton-Derived Fiber-Based Thermoelectric Aerogel for Wearable and Self-Powered Temperature-Compression Strain Dual-Parameter Sensing

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The rapid development of the global economy and population growth are accompanied by the production of numerous waste textiles.This leads to a waste of limited resources and serious environmental pollu-tion problems caused by improper disposal.The rational recycling of wasted textiles and their transfor-mation into high-value-added emerging products,such as smart wearable devices,is fascinating.Here,we propose a novel roadmap for turning waste cotton fabrics into three-dimensional elastic fiber-based thermoelectric aerogels by a one-step lyophilization process with decoupled self-powered temperature-compression strain dual-parameter sensing properties.The thermoelectric aerogel exhibits a fast compression response time of 0.2 s,a relatively high Seebeck coefficient of 43 μV·K-1 and an ultra-low thermal conductivity of less than 0.04 W.m-1·K-1.The cross-linking of trimethoxy(methyl)silane(MTMS)and cellulose endowed the aerogel with excellent elasticity,allowing it to be used as a compres-sive strain sensor for guessing games and facial expression recognition.In addition,based on the thermo-electric effect,the aerogel can perform temperature detection and differentiation in self-powered mode with the output thermal voltage as the stimulus signal.Furthermore,the wearable system,prepared by connecting the aerogel-prepared array device with a wireless transmission module,allows for tempera-ture alerts in a mobile phone application without signal interference due to the compressive strains gen-erated during gripping.Hence,our strategy is significant for reducing global environmental pollution and provides a revelatory path for transforming waste textiles into high-value-added smart wearable devices.

Waste textilesHigh value-added recyclingThermoelectricsElasticityDecoupled sensing

Xinyang He、Mingyuan Liu、Jiaxin Cai、Zhen Li、Zhilin Teng、Yunna Hao、Yifan Cui、Jianyong Yu、Liming Wang、Xiaohong Qin

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Key Laboratory of Textile Science & Technology,Ministry of Education,College of Textiles,Donghua University,Shanghai 201620,China

Key Laboratory of Science and Technology of Eco-Textiles,Ministry of Education,Jiangnan University,Wuxi 214122,China

Innovation Center for Textile Science and Technology,Donghua University,Shanghai 201620,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesInternational Cooperation Fund of Science and Technology Commission of Shanghai MunicipalityMajor Scientific and Technological Innovation Projects of Shandong ProvinceState Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsDonghua University Distinguished Young Professor ProgramFundamental Research Funds for the Central UniversitiesGraduate Student Innovation Fund of Donghua University

51973027520030442232023A-05211307501002021CXGC011004KF2216CUSF-DH-D-2022040

2024

10.1016/j.eng.2024.01.015

工程(英文)

工程(英文)

CSTPCDEI
ISSN：2095-8099
年,卷(期)：2024.39(8)