A Research On Wearable Highly Adhesive Flexible Strain Sensor

Flexible strain sensors have wide application prospects in the fields of artificial intelligence,bioelectronics,medical treatment,and human-computer interaction due to their flexibility,ductility,and portability.The conception,design,and preparation of flexible strain sensors for human motion and gesture recognition have recently received considerable attention and become a hot research topic in the fields of flexible electronic devices,artificial skin,and medical health.In view of the limited adhesion of traditional flexible strain sensor devices,it is difficult to form an effective bond with complex surfaces such as curved,rough and smooth.UV adhesive is selected to have a long storage period,fast curing speed,high bonding strength,low production energy consumption and the UV adhesive with excellent performance such as large-scale integration is used as the substrate.The organic combination of the substrate and the conductive filler is realized by the method of material modification and UV light/thermal dual curing,and the flexible strain sensor with strong adhesion performance is designed and prepared.Through the design of material modification method,the selection of conductive filler system and the study of the mechanism of cooperative conductive network,at the same time,with the help of microscopic characterization methods such as step meter,scanning electron microscope,X-ray diffraction and Fourier infrared spectroscopy,the conductive mechanism of the strain sensor And the influence of strain sensing characteristics,determine the preparation method and conduct application research.Based on its strong binding effect on various organic and inorganic surfaces,through the design of conductive filler system,process optimization and structural optimization to prepare a highly adhesive flexible strain sensor that meet different application scenarios.By comparative analysis of the mechanical and electrical properties of flexible strain sensors,we designed a three-dimensional force detection device,to achieve the threedimensional force direction recognition and accuracy analysis.At the same time,it is designed as an intelligent electronic skin device to verify its application in gesture recognition,and further uses time-frequency analysis methods and classification algorithms to classify and analyze the application.The experimental results show that the highly-adhesive flexible strain sensor can be widely used in electronic beard,gesture recognition and intelligent robot systems,and provide more possibilities for the study of novel wearable electronic devices.