【摘要】 柔性可穿戴应变传感器对于发展人工智能、人体运动参数监测以及精准远程医疗均具有重要的辅助作用,碳基材料由于具有良好的导电性和机械性能是可穿戴应变传感器的理想备选材料。本工作以亚麻织物高温炭化产物为基体,通过表面修饰策略,将亚麻织物衍生炭与二维石墨烯、一维银纳米线有机融合,制备得到了复合型柔性可穿戴应变传感器。该应变传感器性能优良,应变工作范围大(60%),灵敏度高(应变范围为0～20%、20%～40%、40%～60%对应的应变系数分别为11.2、36.8、74.5),测量稳定性好,成功用于人体关节运动的检测(手腕、肘部、膝盖),具有潜在的应用前景。本工作对于高性能柔性可穿戴复合型应变传感器的创制提供了新思路。更多还原

【Abstract】 A stretchable,skin-mountable and wearable strain sensor is important because of its possible applications in monitoring our daily life and work,such as robotic intelligent equipment,health-monitoring,human motion detection and remote precise diagnosis. A linen fabric-derived carbon( LDC) has been rationally integrated with 2 D graphene and 1 D silver nanowires by impregnation of the linen fabric with a graphene oxide suspension followed by carbonization and final impregnation with a suspension of silver nanowires. The Ag nanowires/graphene/linen-derived carbon( Ag-GLDC) composite sensor exhibits excellent stretchability( > 60%),good cycling stability,and high sensitivity with gauge factors of 11. 2,36. 8 and 74. 5 for strains of 0-20%,20%-40%,40%-60%,respectively. The composite sensor has been successfully used to monitor the vigorous motion of human body joints( w rist,knee and elbow),suggesting its potential use in human motion detection. This work provides a new method for the preparation of flexible and wearable composite strain sensors with high performance.更多还原