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Graphene foam/polymer high-conductivity composite material preparation method and application thereof

A graphene foam, composite material technology, applied in metal material coating process, gaseous chemical plating, coating and other directions, can solve the problems of lack of flexibility and elasticity, achieve simplified preparation process, excellent electrical and mechanical properties , high uniformity effect

Active Publication Date: 2014-09-10
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional rigid materials such as metal and silicon have good electrical properties, but do not have flexibility and elasticity, and cannot be directly used to prepare flexible electronic devices. Therefore, developing a new type of material with good mechanical stability and electrical conductivity is important for flexible The development of electronic devices will be critical

Method used

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  • Graphene foam/polymer high-conductivity composite material preparation method and application thereof
  • Graphene foam/polymer high-conductivity composite material preparation method and application thereof
  • Graphene foam/polymer high-conductivity composite material preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0029] The present embodiment provides a kind of preparation method of graphene foam / silicone rubber composite material, and concrete scheme comprises the following steps:

[0030] (1) Provide a three-dimensional fully connected graphene foam and a polymer precursor solution

[0031]The method for preparing the graphene foam is a chemical vapor deposition method. This method catalytically cracks the carbon source gas on the surface of the three-dimensional porous metal foam to grow a three-dimensional connected graphene, and then dissolves the metal foam substrate to obtain a porous foam-like graphite. Three-dimensional macroscopic bodies of alkenes. The graphene foam density obtained by adjusting a series of process parameters is 3-5 mg / cm 3 , porosity 99.5~99.8%, specific surface area 300~850m 2 / g, conductivity 7~10S / cm, this embodiment optimizes the density to 5mg / cm 3 , porosity 99.7%, specific surface area 500m 2 / g, conductivity 10S / cm.

[0032] In the present inve...

Embodiment 2

[0040] The present embodiment provides a kind of preparation method of graphene foam / epoxy resin composite material, and specific scheme comprises the following steps:

[0041] (1) Provide a three-dimensional fully connected graphene foam and a polymer precursor solution

[0042] The method for preparing the graphene foam is a chemical vapor deposition method. This method catalytically cracks the carbon source gas on the surface of the three-dimensional porous metal foam to grow a three-dimensional connected graphene, and then dissolves the metal foam substrate to obtain a porous foam-like graphite. Three-dimensional macroscopic bodies of alkenes. The graphene foam density obtained by adjusting a series of process parameters is 3-5 mg / cm 3 , porosity 99.5~99.8%, specific surface area 300~850m 2 / g, conductivity 7~10S / cm, this embodiment optimizes the density to 5mg / cm 3 , porosity 99.7%, specific surface area 500m 2 / g, conductivity 10S / cm.

[0043] In the present inventi...

Embodiment 3

[0050] The present embodiment provides a kind of preparation method of graphene foam / plexiglass composite material, and concrete scheme comprises the following steps:

[0051] (1) Provide a three-dimensional fully connected graphene foam and a polymer precursor solution

[0052] The method for preparing the graphene foam is a chemical vapor deposition method. This method catalytically cracks the carbon source gas on the surface of the three-dimensional porous metal foam to grow a three-dimensional connected graphene, and then dissolves the metal foam substrate to obtain a porous foam-like graphite. Three-dimensional macroscopic bodies of alkenes. The graphene foam density obtained by adjusting a series of process parameters is 3-5 mg / cm 3 , porosity 99.5~99.8%, specific surface area 300~850m 2 / g, conductivity 7~10S / cm, this embodiment optimizes the density to 5mg / cm 3 , porosity 99.7%, specific surface area 500m 2 / g, conductivity 10S / cm.

[0053] In the present inventio...

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Abstract

The invention relates to the graphene composite material field, and particularly to a graphene foam / polymer high-conductivity composite material, a preparation method and applications thereof. Steps of the method comprises as follows: providing a fully communicated three-dimension grapheme foam network and a precursor solution of a high-molecular polymer; mixing the graphene foam with the precursor solution of the high-molecular polymer to form a graphene foam / high-molecule polymer precursor mixture; and solidifying the precursor of the high-molecular polymer in the mixture to form a high-conductivity graphene foam composite material. The invention adopts the three-dimension graphene foam to form a fully- communicated graphite rapid transmission network by a seamless connection, which enables the graphene foam composite material to possess great conductivity and mechanical property and can be widely applied to the conductive composite materials and elasticity conductor field.

Description

Technical field: [0001] The invention relates to the field of graphene foam composite materials, specifically a graphene foam / polymer high-conductivity composite material and its preparation method and application. A three-dimensional fully connected graphene foam network is used as the conductive additive of the composite material to construct A composite material with a three-dimensional highly conductive fully connected network is developed, which can be widely used in the fields of conductive composite materials and elastic conductors. Background technique: [0002] Graphene is a two-dimensional honeycomb crystal structure formed by densely packing a single layer of carbon atoms, and is the basic structural unit for constructing other dimensional carbon materials (zero-dimensional fullerene, one-dimensional carbon nanotubes, and three-dimensional graphite). The unique crystal structure of graphene makes it have excellent electrical, thermal and mechanical properties, suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L21/00C08L75/04C08L63/00C08L91/06C08L77/00C08L33/12C08L79/08C08L23/06C08L25/06C08L23/12C08K7/24C08K3/04C23C16/44C23C16/26
Inventor 任文才陈宗平成会明
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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