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

用于可穿戴和自供电温度-压缩应变双参数传感的废棉纤维热电气凝胶

作　　者：Xinyang He Mingyuan Liu Jiaxin Cai Zhen Li Zhilin Teng Yunna Hao Yifan Cui Jianyong Yu Liming Wang Xiaohong Qin 何昕阳;刘明远;蔡佳欣;李臻;滕志霖;郝云娜;崔一帆;俞建勇;王黎明;覃小红

机构地区：[1]Key Laboratory of Textile Science&Technology,Ministry of Education,College of Textiles,Donghua University,Shanghai 201620,China [2]Key Laboratory of Science and Technology of Eco-Textiles,Ministry of Education,Jiangnan University,Wuxi 214122,China [3]Innovation Center for Textile Science and Technology,Donghua University,Shanghai 201620,China

出　　处：《Engineering》2024年第8期235-243,共9页工程（英文）

基　　金：supported by the grants(51973027 and 52003044)from the National Natural Science Foundation of China;the Fundamental Research Funds for the Central Universities(2232023A-05);the International Cooperation Fund of Science and Technology Commission of Shanghai Municipality(21130750100);Major Scientific and Technological Innovation Projects of Shandong Province(2021CXGC011004);This work has also been supported by the State Key Laboratory for Modification of Chemical Fibers and Polymer Materials(KF2216);the Donghua University Distinguished Young Professor Program to Prof.Liming Wang;the Fundamental Research Funds for the Central Universities and Graduate Student Innovation Fund of Donghua University(CUSF-DH-D-2022040)to Xinyang He.

摘　　要：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 pollution problems caused by improper disposal.The rational recycling of wasted textiles and their transformation 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 43μV·K^(-1),and an ultralow 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 compressive strain sensor for guessing games and facial expression recognition.In addition,based on the thermoelectric 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 temperature alerts in a mobile phone application without signal interference due to the compressive strains generated 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.

关 键 词：Waste textiles High value-added recycling THERMOELECTRICS ELASTICITY Decoupled sensing 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TS106[自动化与计算机技术—控制科学与工程]