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Preparation method of high-sensitivity electronic skin

An electronic skin and high-sensitivity technology, which is applied in the field of preparation of high-sensitivity electronic skin, can solve the problems of high cost and complicated electronic skin process, and achieve the effect of good electrical conductivity

Inactive Publication Date: 2018-05-29
韩金玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the current technical problems of complex and high-cost preparation of electronic skin, the present invention proposes a preparation method for high-efficiency and large-scale realization of high-sensitivity electronic skin after a large number of research tests. This method can quickly realize industrial production , and the prepared electronic skin has good performance

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] First prepare a high-quality silver nanowire ethanol solution with a concentration of 0.01mg / ml, fix a piece of high-temperature-resistant PET film on a heating table, use a spray gun to spray a layer of silver nanowire conductive network on the PET surface, and then prepare a concentration of 0.01mg / ml of a mixed solution of large and small pieces of graphene, the graphene is also deposited on the surface of the above-mentioned silver nanowire conductive network by spraying, to obtain a silver nanowire conductive layer evenly covered by graphene, and then, using the method of spin coating, A layer of polyvinyl alcohol polymer is spin-coated on the surface of the above-mentioned conductive layer. After the polymer is dried, use tweezers to separate the conductive structure from the PET film from the PET surface. After coating a layer of PDMS and cooling to room temperature, a sandwich-structured electronic skin can be obtained.

Embodiment 2

[0017] First prepare a high-quality silver nanowire ethanol solution with a concentration of 0.2mg / ml, fix a piece of high-temperature-resistant PET film on a heating table, use a spray gun to spray a layer of silver nanowire conductive network on the PET surface, and then prepare a concentration of 0.05mg / ml of a mixed solution of large and small pieces of graphene, the graphene is also deposited on the surface of the above-mentioned silver nanowire conductive network by spraying, to obtain a silver nanowire conductive layer evenly covered by graphene, and then, using the method of spin coating, A layer of polyvinyl alcohol polymer is spin-coated on the surface of the above-mentioned conductive layer. After the polymer is dried, use tweezers to separate the conductive structure from the PET film from the PET surface. After coating a layer of PDMS and cooling to room temperature, a sandwich-structured electronic skin can be obtained.

Embodiment 3

[0019] First prepare a high-quality silver nanowire ethanol solution with a concentration of 0.5mg / ml, fix a piece of high-temperature-resistant PET film on a heating table, use a spray gun to spray a layer of silver nanowire conductive network on the PET surface, and then prepare a concentration of 0.1mg / ml of a mixed solution of large and small pieces of graphene, the graphene is also deposited on the surface of the above-mentioned silver nanowire conductive network by spraying, to obtain a silver nanowire conductive layer evenly covered by graphene, and then, using the method of spin coating, A layer of polyvinyl alcohol polymer is spin-coated on the surface of the above-mentioned conductive layer. After the polymer is dried, use tweezers to separate the conductive structure from the PET film from the PET surface. After coating a layer of PDMS and cooling to room temperature, a sandwich-structured electronic skin can be obtained.

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Abstract

Provided is high-sensitivity electronic skin. The skin is of a sandwich structure made of polyvinyl alcohol-silver nanowires / graphene-PDMS. By means of a spraying mode, a layer of overlapped accumulational silver-nanowire conductive networks are formed on the surface of a PET substrate, and then a layer of graphene mixed by large graphene and small graphene is evenly sprayed and dispersed on thesilver-nanowire conductive networks; the graphene precipitates among the silver-nanowire networks or on the adjacent communicated silver nanowires, correspondingly the conductivity of the conductive networks is further improved, and after that, by means of a rotary coating mode, the surfaces of the conductive networks are rotatably coated with a layer of polyvinyl alcohol solution to serve as thebase body of the electronic skin; at last, after polyvinyl alcohol is dried, a composite membrane is separated from a PET membrane and transferred into a drying oven, the surface of the composite membrane is turned over, a layer of PDMS membrane is evaporated on the surface, in contact with PET, of the composite membrane, and therefore the electronic skin of the sandwich structure can be obtained.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a method for preparing a high-sensitivity electronic skin. Background technique [0002] At present, with the increasing development of intelligent technology, its integration with society, human production and life is getting closer and closer, and its influence on us is deepening day by day. There is no doubt that intelligent technology, especially electronic skin, will play a big role in the medical field. Yicai, for example, by implanting some wearable devices into our clothes, skin and other parts, we can realize real-time monitoring of our own physiological parameters, and realize the functions of networking, timely prediction and alarm for our health index at any time. [0003] In order to realize the early application of the above-mentioned wearable devices, scientists from various countries have conducted in-depth and extensive research on this. Among them, the related resea...

Claims

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Application Information

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IPC IPC(8): A61B5/00
CPCA61B5/6801A61B2562/00
Inventor 吕振瑞其他发明人请求不公开姓名
Owner 韩金玲
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