聚苯胺复合导电织物增强水凝胶传感器的制备与性能研究  

A study on the preparation and performance of polyaniline composite conductive fabric-enhanced hydrogel sensors

作　　者：夏娟 朱晓阳 毛迎 吕汪洋[1,2] 李楠[1,2] XIA Juan;ZHU Xiaoyang;MAO Ying;LU Wangyang;LI Nan(College of Textile Science and Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China;National Engineering Lab for Textile Fiber Materials and Processing Technology,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学纺织科学与工程学院,杭州310018 [2]浙江理工大学纺织纤维材料与加工技术国家地方联合工程实验室,杭州310018

出　　处：《丝绸》2024年第10期69-78,共10页Journal of Silk

基　　金：财政部和农业农村部“国家现代农业产业技术体系”项目(CARS-18)。

摘　　要：织物基柔性传感器因其柔软轻薄、灵敏度高,在可穿戴电子材料领域受到广泛关注。文章以涤氨纶混纺织物为基底材料,采用原位聚合法制备了聚苯胺(PANI)复合导电织物,再将聚乙烯醇(PVA)和壳聚糖(CS)共混制备的水凝胶涂覆于其表面,得到PANI复合导电织物增强的水凝胶传感器(PAC传感织物),并对其进行了表征和性能测试。结果表明,13%-PAC传感织物具有优异的导电性、耐低温性、抗疲劳性和抗菌性,当应变为210.8%时,其断裂强度达到8.2 MPa,灵敏度(GF)为0.461,对人体面部微表情、膝部和肘部的活动有较好的响应能力,有望应用于人体健康监测和柔性可穿戴传感器等领域。Wearable sensors can output various external stimuli(such as pressure,temperature,and humidity)as electrical signals,and are receiving attention in fields such as health monitoring,disease diagnosis,and artificial intelligence.Among sensor materials,hydrogels are widely used because of their excellent flexibility and stretchability.However,most hydrogels cannot meet the requirements of high mechanical strength and high electrical conductivity at the same time,which hinders their development to some extent.Textiles have good flexibility,tensile strength and tensile recovery,and are suitable substrates for the preparation of strain sensors.Compared with traditional rigid sensors,flexible conductive fabric-based sensors prepared with the combination of hydrogel and conductive fabrics are soft,thin,ductile,sensitive and able to fit the human body movement,which can effectively enhance the mechanical properties and sensitivity of the hydrogel,make the detection more accurate and convenient,and provide a new way for solving this problem.Flexible sensors prepared with fabric as a substrate require the selection of a suitable conductive material.The bond between the metal-based conductive material and the polymer fiber layer is usually poor and easily detached due to mechanical deformation.After the carbon-based conductive material is bonded to the fabric,the fabric-based strain sensors obtained have poor conductivity and cannot monitor small deformations during application due to the lack of a continuous contact conductive mechanism.Therefore,it is necessary to select a conductive material that can be firmly bonded with the fabric substrate and has excellent electrical conductivity,so as to develop a fabric-based flexible sensor with high sensitivity and large strain range.The introduction of conductive polymers into fabrics results in conductive fabric sensors with human motion monitoring functions.Common conductive polymers include polypyrrole(Ppy),polyaniline(PANI),and poly(3,4-ethylenedioxythiophene)(PEDOT),among wh

关 键 词：柔性可穿戴传感器 原位聚合法 PANI复合导电织物 水凝胶 人体运动监测 

分 类 号：TS106.5[轻工技术与工程—纺织工程]