The Efficient Preparation Of The IPMC Flexible Sensor And The Integrated Application Of Its Smart Glove System

Flexible sensors,which can meet human ergonomics requirements by virtue of compliance,are widely used in smart wearable electronics.Compared with existing piezoresistive,capacitive,and piezoelectric sensors,flexible ionic polymer metal composite(IPMC)sensors,as the kind of special ion piezoelectric mater:ial,are promising for application in the field of smart wearables,due to their advanced characteristics of direction identification,stable performance under large deformation and passive.Generally,the preparation of the IPMC sensor is based on a conventional electroless plating method to form a sandwich structure with the metallized electrodes on both sides of the ionic polymer membrane.The process can ensure the interface fastness between the intermediate layer and the electrode layer with those problems including time consuming,complicated process,high cost,poor batching and inability to be mass-produced.Our work focuses on improving the preparation process of IPMC to achieve efficient batch production of IPMC sensors with high performance.In addition,a complete wearable electronic prototype is built based on the IPMC flexible sensor.For the improvement of the preparation process,a fluid-bed-like reactor is developed.Specifically,the ionic polymer intermediate layer is fixed by introducing a customized template into the process of IPMC sensor preparation.It ensures that the reduction of the electrode is uniform and sufficient,the performance of sensor is excellent,and the preparation process is greatly shortened.The prepared IPMC flexible sensor showed excellent sensitivity(2.99 mv/1%strain)and high stability(8000 times of bending recovery cycles of 98.2%)and high linearity.For the construction of the prototype of the wearable electronic system,we set up the part of hardware(IPMC flexible sensor,gloves,circuit,mobile terminal,etc.)and software(related program).The system's construction includes integration of sensors,board and glove,and circuit design for collecting and processing signals.Here,we have successfully constructed a smart glove wearable system that can achieve standardized diagnosis of subtle pulse,accurate identification of precise braille and real-time remote control of the robot hand timely.This work presents a practical strategy for efficient large-scale production of advanced IPMC flexible sensors.And It accelerate the practical application of flexible wearable system in the field of portable medical and human-computer interaction.