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A kind of preparation method of flexible sensor electrode

A flexible sensor and electrode technology, applied in the field of sensors, can solve the problems of not being able to better play the practical value of sensors, not being able to use wearable devices, poor electrical conductivity, etc., to achieve good film formation and environmental stability, excellent tensile strength. The effect of high tensile strength and surface friction coefficient

Active Publication Date: 2020-06-05
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the field of sensors, most of the existing technologies are to compound conductive materials on platinum carbon electrodes. The composite materials are relatively simple, have poor conductivity, have defects, and are not flexible, so they cannot be used in wearable devices, that is, they cannot be better. Play the practical value of the sensor,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation of oily film-forming solution

[0037] Add 1 g of styrene-butadiene-styrene block copolymer to 20 mL of chloroform solution, stir and let it stand for a day to completely dissolve the styrene-butadiene-styrene block copolymer to three In the methyl chloride solution, an oily film-forming solution with a mass fraction of 5% was prepared.

[0038] (2) Preparation of graphene by ball milling method

[0039] Add 20g of graphite powder and 400g of dry ice into the ball milling tank, control the rotation speed of the rotating tray to 3000rpm, and the ball milling time is 48h to obtain dark black graphene. Open the tank and take out the graphene and add hydrochloric acid to clean it to remove excess impurities in the product. Then use deionized water Washed three times and freeze-dried to obtain solid graphene.

[0040] (3) Preparation of graphene quantum dots by hydrothermal method

[0041] Take 0.5 g of graphene prepared by ball milling method and disperse i...

Embodiment 2

[0053] (1) Preparation of oily film-forming solution

[0054] Get 1g of styrene-butadiene-styrene block copolymer plastic and add it to 20mL of chloroform solution, stir and let it stand for a day to completely dissolve the styrene-butadiene-styrene block copolymer to In the chloroform solution, an oily film-forming solution with a mass fraction of 5% was prepared.

[0055] (2) Preparation of graphene by ball milling method

[0056] Add 20g of graphite powder and 400g of dry ice into the ball milling tank, control the rotation speed of the rotating tray to 3000rpm, and the ball milling time is 48h to obtain dark black graphene. Open the tank and take out the graphene and add hydrochloric acid to clean it to remove excess impurities in the product. Then use deionized water Washed three times and freeze-dried to obtain solid graphene.

[0057] (3) Preparation of graphene quantum dots by hydrothermal method

[0058] Take 0.5 g of graphene prepared by ball milling method and di...

Embodiment 3

[0070] (1) Preparation of oily film-forming solution

[0071] Get 1g of styrene-butadiene-styrene block copolymer plastic and add it to 20mL of chloroform solution, stir and let it stand for a day to completely dissolve the styrene-butadiene-styrene block copolymer to In the chloroform solution, a styrene-butadiene-styrene block copolymer solution with a mass fraction of 5% was prepared.

[0072] (2) Preparation of graphene by ball milling method

[0073] Add 20g of graphite powder and 400g of dry ice into the ball milling tank, control the rotation speed of the rotating tray to 3000rpm, and the ball milling time is 48h to obtain dark black graphene. Open the tank and take out the graphene and add hydrochloric acid to clean it to remove excess impurities in the product. Then use deionized water Washed three times and freeze-dried to obtain solid graphene.

[0074] (3) Preparation of graphene quantum dots by hydrothermal method

[0075] Take 0.5 g of graphene prepared by bal...

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Abstract

The invention relates to the field of sensors and discloses a method for preparing a flexible sensor electrode. According to the method, a flexible conductive film is prepared by using a solution mixing method, a styrene-butadiene-styrene segmented copolymer is adopted as a flexible substrate, graphene quantum dots and nano golden binary compounds are adopted as conductive materials, an electrodeis modified with poly 3,4-ethylenedioxythiophene-polystyrolsulfon acid, and thus a flexible sensor electrode with styrene-butadiene-styrene / graphene quantum dots / nano golden particles is prepared. Thesensor electrode prepared by using the method is good in flexibility and can be applied to fields of medicinal biological monitoring, environment and sanitation monitoring, and the like.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a method for preparing flexible sensor electrodes. Background technique [0002] Sensors are human beings' own detection of various sensory information in nature, and can convert different signals and sensory information into important digital and intelligent devices. In the process of the rapid development of information technology in human civilization, sensors have played an increasingly important role. They are one of the important means for human beings to explore the unknown world, understand the real world and observe surrounding information. A sensor is an adjustable component that can convert non-electrical signals such as electricity, light, temperature, and chemical action into electrical signals. [0003] Graphene is a new class of carbon two-dimensional nano light material, with a unique two-dimensional crystal structure of single atomic layer, a large number of research resu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/12C08J5/18C08K3/04C08K3/08C08L53/02C01B32/19C01B32/194G01N27/30
Inventor 万军民丁文凤胡智文王秉彭志勤
Owner ZHEJIANG SCI-TECH UNIV
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