摘要
蚕丝具有优异的生物相容性、可降解性和易加工性等,是应用于柔性电子领域的理想柔性基底材料。本文通过气液界面聚合法,在蚕丝织物、平板丝和静电纺丝素膜三种蚕丝材料表面实现聚苯胺的原位生长,成功制备出以聚苯胺为活性导电介质的柔性基材,并将其组装成柔性压阻式压力传感器,这为开发高性能、安全可靠和轻质便携的可穿戴电子产品提供新的方法和途径。结果表明:三种蚕丝基柔性压力传感器中,蚕丝织物聚苯胺传感器具有最大的压力检测范围(16.27~504.79 kPa),拉伸变形可达20%,灵敏度仅为0.00129 kPa^(-1);静电纺丝素膜聚苯胺传感器灵敏度最高(0.01376 kPa^(-1)),但拉伸变形能力差,仅可拉伸2.3%;平板丝聚苯胺传感器压力检测灵敏度略高于蚕丝织物聚苯胺传感器,达到0.00134 kPa^(-1),线性检测范围为9.8~87.6 kPa。本文研究开发的蚕丝基柔性压力传感器在运动检测领域具有较好的应用前景。
Wearable electronic devices are portable gadgets worn either directly on the body or embedded in clothing or accessories.They offer functionalities across several domains such as medical health,outdoor sports,video and audio entertainment.Advancements in science and technology have led to electronic components being combined with flexible substrates,facilitating the development of wearable electronics in a more flexible and lightweight direction.This is beneficial to enhancing individuals’quality of life.Flexible wearable technology offers significant advantages such as flexibility,easy deformation,and good biological adaptability.However,there are also issues such as low sensitivity,limited detection range,and weak reliability resulting from environmental interference.The flexible pressure sensor plays a significant role in pressure detection within these devices.Therefore,the key to the development of flexible wearable devices lies in the advancement of flexible pressure sensors with outstanding performance.Flexible pressure sensors merge the suppleness of wearable materials with the electrical activity of electronic components,and can be attached to irregular surfaces to efficiently detect the pressure on the surface of objects.The selection of substrates and conductive materials will have a direct impact on the sensing performance of the flexible pressure sensor.Silk is a biological material with a lengthy history,possessing exceptional tensile strength and toughness,biocompatibility,biodegradability,and effortless processing,making it an ideal material for flexible sensors.Based on the features of silk processing and molding,it can be categorized into natural silk-based materials,regenerated silk protein materials,and silk primary fibers and aggregates.Consequently,in this study,three types of silk materials including silk fabric,flat silk cocoon,and electrospun silk fibroin film are selected as flexible substrates to develop the flexible sensors.Polyaniline(PANI),a unique conductive polymer,exhibits elect
作者
刘嘉琪
汪宇佳
王胜男
代方银
李智
LIU Jiaqi;WANG Yujia;WANG Shengnan;DAI Fangyin;LI Zhi(State Key Laboratory of Resource Insects,Southwest University,Chongqing 400715,China;College of Sericulture,Textile and Biomass Science,Southwest University,Chongqing 400715,China;Chongqing Engineering Technology Research Center of Biomaterial Fiber and Modern Textile,Southwest University,Chongqing 400715,China;Key Laboratory of Sericulture Biology and Genetic Breeding,Ministry of Agriculture,Southwest University,Chongqing 400715,China)
出处
《丝绸》
CAS
CSCD
北大核心
2024年第4期34-42,共9页
Journal of Silk
基金
重庆市教育委员会科学技术研究项目(KJQN202100203)
大学生创新创业训练计划项目(X202310635299)。
关键词
蚕丝织物
平板丝
静电纺丝素膜
聚苯胺
气液界面结合
柔性压力传感器
silk fabric
flat silk cocoon
electrospun silk fibroin film
polyaniline
gas-liquid interface bonding
flexible pressure sensor
