Development and application of flexible wearable sensor based on self-healing polymer material
Project background:
Flexible wearable sensor is a kind of electronic device that can realize real-time monitoring and interaction of human physiological signals and environmental information, and has a wide range of applications, such as health management, intelligent prosthetics, virtual reality and so on. However, flexible wearable sensors are prone to mechanical damage due to their frequent contact and friction with the human body or other objects, resulting in performance degradation or failure. Therefore, giving flexible wearable sensors the ability to self-repair, that is, to automatically restore their structure and function after damage, is an effective way to improve their reliability and durability. Self-healing polymer materials are a class of polymer materials with self-healing ability, which can realize the reconnection of damaged areas by chemical or physical means. The combination of self-healing polymer materials and flexible wearable sensors can realize the detection and repair of damage, thus extending the service life of the sensor and ensuring its stability.
Brief introduction of the project:
This paper aims to develop a flexible wearable sensor based on self-healing polymer materials, using the special structure and properties of self-healing polymer materials, to achieve rapid, effective and repeatable self-healing of different types of mechanical damage (such as scratches, cuts, tears, etc.), and to maintain high sensitivity, high stability and high reliability of the sensor.
The following methods will be adopted in this project:
1. Select or design self-healing polymer materials with different self-healing mechanisms (such as dynamic chemical bond, supramolecular interaction, hydrogen bond, etc.), and prepare the substrate materials with different forms (such as nanofibers, films, sponges, etc.) through electrospinning, injection molding, 3D printing and other technologies.
2. Select or design conductive materials with different conductive mechanisms (such as doping, filling, coating, etc.), and combine with self-healing polymer materials through physical or chemical methods to form self-healing conductive composite materials with conductive networks.
3. Use self-healing conductive composite materials to build flexible wearable sensors of different types (such as piezoresistive, capacitive, piezoelectric, etc.), and realize the miniaturization and integration of sensors through micro-machining technology.
4. Characterize and test the mechanical properties, electrical conductivity, self-healing efficiency and sensing performance of the prepared self-healing flexible wearable sensor, and evaluate its feasibility and advantages in different application scenarios (such as human movement monitoring and physiological signal detection).
Project content:
The first stage: selection or design and preparation of self-healing polymer materials. According to different self-healing mechanisms, the suitable monomer or polymer is selected or designed, and the polymer material with self-healing ability is prepared by polymerization reaction or post-treatment. And through electrospinning, injection molding, 3D printing and other technologies to prepare it into different forms (such as nanofibers, films, sponges, etc.) of the base material to meet different sensing needs and application scenarios.
The second stage: preparation and characterization of self-healing conductive composites. According to different conductive mechanisms, suitable conductive materials (such as metal nanoparticles, carbon nanotubes, graphene, etc.) are selected or designed, and combined with self-healing polymer materials by physical or chemical methods to form self-healing conductive composite materials with conductive networks. The morphology, structure, thermal stability, mechanical properties and electrical conductivity were characterized and analyzed by means of scanning electron microscopy, infrared spectroscopy, thermogravimetric analysis, tensile test and cyclic voltammetry.
The third stage: self-healing flexible wearable sensor construction and testing. Different types of flexible wearable sensors (such as piezoresistive, capacitive, piezoelectric, etc.) are constructed by using self-healing conductive composite materials, and the miniaturization and integration of the sensors are realized by micro-machining technology. And through the multi-point displacement instrument, oscilloscope, signal generator and other instruments to test its mechanical properties, self-healing efficiency and sensing performance, and evaluate its feasibility and advantages in different application scenarios (such as human movement monitoring, physiological signal detection, etc.).
The fourth stage: optimization and improvement of self-healing flexible wearable sensor. According to the test results, the self-healing flexible wearable sensor is optimized and improved to improve its self-healing efficiency and sensing performance, reduce its cost and power consumption, and increase its function and reliability. And explore its potential applications in other fields, such as smart prosthetics, virtual reality, etc.
Topic innovation:
1. This topic is the development and application research of flexible wearable sensors based on self-healing polymer materials, which is a relatively advanced and popular research direction at present, and has high academic value and social significance.
2. This project adopts a variety of self-healing mechanisms and conductive mechanisms to achieve rapid, effective and repeatable self-healing for different types of mechanical damage (such as scratches, cuts, tears, etc.), and maintain high sensitivity, high stability and high reliability of the sensor.
3. This topic utilizes a variety of preparation technologies and micro-machining technologies to realize the construction and integration of multi-form (such as nanofibers, films, sponges, etc.), multi-type (such as piezoresistive, capacitive, piezoelectric, etc.) and multi-function (such as human movement monitoring, physiological signal detection, etc.) self-healing flexible wearable sensors.
4. This topic evaluates the feasibility and advantages of self-healing flexible wearable sensors in different application scenarios (such as human motion monitoring, physiological signal detection, etc.), and explores its potential applications in other fields (such as intelligent prosthetics, virtual reality, etc.).
Flexible wearable sensor is a kind of electronic device that can realize real-time monitoring and interaction of human physiological signals and environmental information, and has a wide range of applications, such as health management, intelligent prosthetics, virtual reality and so on. However, flexible wearable sensors are prone to mechanical damage due to their frequent contact and friction with the human body or other objects, resulting in performance degradation or failure. Therefore, giving flexible wearable sensors the ability to self-repair, that is, to automatically restore their structure and function after damage, is an effective way to improve their reliability and durability. Self-healing polymer materials are a class of polymer materials with self-healing ability, which can realize the reconnection of damaged areas by chemical or physical means. The combination of self-healing polymer materials and flexible wearable sensors can realize the detection and repair of damage, thus extending the service life of the sensor and ensuring its stability.
Brief introduction of the project:
This paper aims to develop a flexible wearable sensor based on self-healing polymer materials, using the special structure and properties of self-healing polymer materials, to achieve rapid, effective and repeatable self-healing of different types of mechanical damage (such as scratches, cuts, tears, etc.), and to maintain high sensitivity, high stability and high reliability of the sensor.
The following methods will be adopted in this project:
1. Select or design self-healing polymer materials with different self-healing mechanisms (such as dynamic chemical bond, supramolecular interaction, hydrogen bond, etc.), and prepare the substrate materials with different forms (such as nanofibers, films, sponges, etc.) through electrospinning, injection molding, 3D printing and other technologies.
2. Select or design conductive materials with different conductive mechanisms (such as doping, filling, coating, etc.), and combine with self-healing polymer materials through physical or chemical methods to form self-healing conductive composite materials with conductive networks.
3. Use self-healing conductive composite materials to build flexible wearable sensors of different types (such as piezoresistive, capacitive, piezoelectric, etc.), and realize the miniaturization and integration of sensors through micro-machining technology.
4. Characterize and test the mechanical properties, electrical conductivity, self-healing efficiency and sensing performance of the prepared self-healing flexible wearable sensor, and evaluate its feasibility and advantages in different application scenarios (such as human movement monitoring and physiological signal detection).
Project content:
The first stage: selection or design and preparation of self-healing polymer materials. According to different self-healing mechanisms, the suitable monomer or polymer is selected or designed, and the polymer material with self-healing ability is prepared by polymerization reaction or post-treatment. And through electrospinning, injection molding, 3D printing and other technologies to prepare it into different forms (such as nanofibers, films, sponges, etc.) of the base material to meet different sensing needs and application scenarios.
The second stage: preparation and characterization of self-healing conductive composites. According to different conductive mechanisms, suitable conductive materials (such as metal nanoparticles, carbon nanotubes, graphene, etc.) are selected or designed, and combined with self-healing polymer materials by physical or chemical methods to form self-healing conductive composite materials with conductive networks. The morphology, structure, thermal stability, mechanical properties and electrical conductivity were characterized and analyzed by means of scanning electron microscopy, infrared spectroscopy, thermogravimetric analysis, tensile test and cyclic voltammetry.
The third stage: self-healing flexible wearable sensor construction and testing. Different types of flexible wearable sensors (such as piezoresistive, capacitive, piezoelectric, etc.) are constructed by using self-healing conductive composite materials, and the miniaturization and integration of the sensors are realized by micro-machining technology. And through the multi-point displacement instrument, oscilloscope, signal generator and other instruments to test its mechanical properties, self-healing efficiency and sensing performance, and evaluate its feasibility and advantages in different application scenarios (such as human movement monitoring, physiological signal detection, etc.).
The fourth stage: optimization and improvement of self-healing flexible wearable sensor. According to the test results, the self-healing flexible wearable sensor is optimized and improved to improve its self-healing efficiency and sensing performance, reduce its cost and power consumption, and increase its function and reliability. And explore its potential applications in other fields, such as smart prosthetics, virtual reality, etc.
Topic innovation:
1. This topic is the development and application research of flexible wearable sensors based on self-healing polymer materials, which is a relatively advanced and popular research direction at present, and has high academic value and social significance.
2. This project adopts a variety of self-healing mechanisms and conductive mechanisms to achieve rapid, effective and repeatable self-healing for different types of mechanical damage (such as scratches, cuts, tears, etc.), and maintain high sensitivity, high stability and high reliability of the sensor.
3. This topic utilizes a variety of preparation technologies and micro-machining technologies to realize the construction and integration of multi-form (such as nanofibers, films, sponges, etc.), multi-type (such as piezoresistive, capacitive, piezoelectric, etc.) and multi-function (such as human movement monitoring, physiological signal detection, etc.) self-healing flexible wearable sensors.
4. This topic evaluates the feasibility and advantages of self-healing flexible wearable sensors in different application scenarios (such as human motion monitoring, physiological signal detection, etc.), and explores its potential applications in other fields (such as intelligent prosthetics, virtual reality, etc.).
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