Constructing and preparation scheme of conductive elastic composite material

An elastic composite material and composite material technology are applied in the field of construction and preparation of conductive elastic composite materials, which can solve problems such as limiting the application of stretchable electronics, large resistance of conductive elastomers, and unstable resistance.

Inactive Publication Date: 2015-04-22
JIANGNAN GRAPHENE RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, due to the thin attached conductive layer, the resistance of conductive elastomers is usually large, and the resistance is unstable during stretching, which greatly limits the research on stretchable electronics and the application of conductive elastomers in stretchable devices.

Method used

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  • Constructing and preparation scheme of conductive elastic composite material
  • Constructing and preparation scheme of conductive elastic composite material
  • Constructing and preparation scheme of conductive elastic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Example. Construction of a conductive elastomer and repeated tensile test experiment

[0022] (1) Use sebs to add talc powder and stir evenly, and use the composite as the basic structural unit of the elastomer.

[0023] (2) Carry out the surface design of the elastomer prepared above and process the period and amplitude. The processing method adopts the template method. The designed surface waveform is a sine wave and the waveform period is 20 microns. The amplitude is 20 microns.

[0024] (3) After constructing the basic periodic structure, modify the surface of the elastomer and introduce aromatic groups-pyrene. The specific route is to use a silane coupling agent to introduce surface active amino groups, and then use carbodiimide coupling to form an amide bond to introduce aromatic groups, such as image 3 Shown.

[0025] (4) The conductive layer of the elastic conductor is made of large-size soluble conductive graphene, and the surface of the graphene is modified with an ...

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PUM

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Abstract

The invention belongs to the field of stretchable electronics and relates to a constructing and preparation scheme of a conductive elastic composite material, in particular to a constructing and preparation scheme of a conductive elastic body which keeps high resistance stability when stretches out and draws back. The high-stretching conductive elastic body comprises two main parts including an elastic main body and a conductive layer. The conductive layer adopts graphene, a carbon nano tube and other conductive materials as a basic conductive unit, and the elastic main body serves as a basic structural unit. An experiment result shows that the whole conductivity of the material can reach 10 Scm-1, elastic strain can reach 600-1000%, and the resistance change is smaller than 10% after 10000 times of repeated stretching. The conductive elastic composite material serves as the basic material of a flexible stretchable electronic device, and can be widely used for medical transplanting, intelligent clothes, artificial intelligence, biomimetic materials and the like.

Description

technical field [0001] The invention relates to the field of stretchable electronics, more specifically, a construction and preparation scheme of a conductive elastic composite material that can maintain high resistance stability during stretching and shrinkage. Background technique [0002] Stretchable electronics, which has just emerged in recent years, has brought new concepts and experiences to people. Stretchable flexible circuits can accomplish many tasks that rigid circuits cannot accomplish, enabling electronic devices to be used in many fields that require high "integration", such as medical implants, smart clothing, artificial intelligence, bionic materials, etc. For example, a stretchable electronic skin can be connected to a prosthetic hand and a nervous system; using stretchable flexible circuits, portable devices can be embedded in clothing or even the body, and work stably during stretching and contraction. This is difficult to achieve with traditional rigid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B13/008
Inventor 刘遵峰贾凤美刘倩姜楠种玉婷
Owner JIANGNAN GRAPHENE RES INST
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