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Preparation method of silver nanowire modified flexible fiber sensor electrode

A technology of sensor electrodes and silver nanowires, applied in the field of sensors, can solve the problems of not being able to better utilize the practical value of sensors, not being able to use wearable devices, and single composite materials, to achieve excellent tensile strength, large surface friction coefficient, The effect of excellent electrical conductivity

Active Publication Date: 2017-12-29
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, most of the conductive materials are composited on the platinum carbon electrode. The composite material is relatively simple, the conductivity is not good, there are defects, and it is not flexible, so it cannot be used in wearable devices, that is, it cannot make better use of the practicality of the sensor. value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of oily film-forming solution

[0038]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.

[0039] (2) Preparation of graphene by ball milling method

[0040] 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.

[0041] (3) Preparation of poly(3,4-ethylenedioxythiophene-polystyrenesulfonic acid-graphene conductive composite material)

[0042] Add 20mg o...

Embodiment 2

[0054] (1) Preparation of oily film-forming solution

[0055] 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.

[0056] (2) Preparation of graphene by ball milling method

[0057] 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.

[0058] (3) Preparation of poly(3,4-ethylenedioxythiophene-polystyrenesulfonic acid-graphene conductive composite material)

[0059] Add 20mg ...

Embodiment 3

[0071] (1) Preparation of oily film-forming solution

[0072] 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.

[0073] (2) Preparation of graphene by ball milling method

[0074] 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.

[0075] (3) Preparation of poly(3,4-ethylenedioxythiophene-polystyrenesulfonic acid-graphene conductive composite material)

[0076] Add 20mg ...

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Abstract

The invention relates to the field of sensors, and discloses a preparation method of a silver nanowire modified flexible fiber sensor electrode. A flexible conductive fiber is prepared with a solution mixing method, wherein SBS (styrene-butadiene-styrene) is taken a as flexible substrate, poly 3,4-ethylenedioxythiophene-polystyrene sulfonate-graphene is taken as a conductive material, the electrode is modified with a silver nanowire, and the silver nanowire modified flexible fiber sensor electrode containing SBS / graphene / poly 3,4-ethylenedioxythiophene-polystyrene sulfonate is obtained. The sensor electrode can be applied in the fields of medical biological monitoring, environment and hygiene monitoring and the like.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a method for preparing flexible fiber sensor electrodes modified by silver nanowires. 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 l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30G01N27/327D06M11/83D01F8/10D01F8/16D01F1/09D06M101/20D06M101/30
CPCD01F1/09D01F8/10D01F8/16D06M11/83D06M2101/20D06M2101/30G01N27/308G01N27/327
Inventor 万军民丁文凤胡智文王秉彭志勤
Owner ZHEJIANG SCI-TECH UNIV
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