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Epoxy-graphenemetal bonding agent and preparation method thereof

A metal bonding, graphene technology, applied in the direction of graphene, adhesives, epoxy resin glue, etc., can solve problems such as low tensile shear strength

Inactive Publication Date: 2017-10-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the key problem of low tensile shear strength of existing epoxy resin metal adhesives, the present invention provides an epoxy-graphene metal adhesive and its preparation method, using mechanical blending and ultrasonic blending means Graphene is dispersed in the epoxy resin matrix, and finally the epoxy-graphene metal bond is prepared

Method used

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  • Epoxy-graphenemetal bonding agent and preparation method thereof

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Effect test

Embodiment 1

[0024] A preparation method of an epoxy metal adhesive, comprising: 60 parts of epoxy resin (E51) and 40 parts of polyetheramine (D400) in terms of components by weight.

[0025] The above-mentioned epoxy metal adhesive is prepared by the following steps:

[0026] (1) take epoxy resin and polyetheramine by weight;

[0027] (2) Put epoxy resin and polyetheramine into a container and mix, heat at 60°C, and mechanically stir at 15,000r / min for 20 minutes to obtain an epoxy metal adhesive.

[0028] (3) According to the GB / T 21526-2008 standard, use a glass rod to coat the obtained epoxy metal adhesive on a clean aluminum sheet, steel sheet, or copper sheet, and the coating thickness can cover the aluminum sheet, steel sheet, or copper sheet The surface is enough, then press tightly to discharge the excess adhesive, so that the upper and lower aluminum sheets or steel sheets or copper sheets are completely bonded, and finally put them in an oven for curing. The curing conditions a...

Embodiment 2

[0030] An epoxy-graphene metal adhesive, calculated by weight components: 60 parts of epoxy resin E51, 39 parts of polyetheramine D400, 0.5 parts of graphene, 0.5 parts of silane coupling agent KH550.

[0031] Above-mentioned epoxy-graphene metal adhesive is prepared by the following steps:

[0032] (1) take epoxy resin, polyether amine, graphene and silane coupling agent according to above weight parts;

[0033] (2) Add epoxy resin, polyether amine, graphene and silane coupling agent into the container, first mix mechanically, then ultrasonically oscillate, heat at 60°C, and mechanically stir at 15000r / min for 30 minutes to obtain epoxy-graphite Alkene Metal Adhesives.

[0034] (3) According to the GB / T 21526-2008 standard, use a glass rod to coat the obtained epoxy-graphene metal adhesive on a clean aluminum sheet or steel sheet or copper sheet, and the coating thickness can cover the aluminum sheet or steel sheet Or the surface of the copper sheet, and then press tightly ...

Embodiment 3

[0036] An epoxy-graphene metal adhesive, calculated by weight components: 59.5 parts of epoxy resin E51, 38 parts of polyetheramine D400, 1 part of graphene, 1.5 parts of silane coupling agent KH550.

[0037] Above-mentioned epoxy-graphene metal adhesive is prepared by the following steps:

[0038] (1) take epoxy resin, polyether amine, graphene and silane coupling agent according to above weight parts;

[0039] (2) Add epoxy resin, polyether amine, graphene and silane coupling agent into the container, first mix mechanically, then ultrasonically oscillate, heat at 60°C, and mechanically stir at 15000r / min for 30 minutes to obtain epoxy-graphite Alkene Metal Adhesives.

[0040](3) According to the GB / T 21526-2008 standard, use a glass rod to coat the obtained epoxy metal adhesive on a clean aluminum sheet, steel sheet, or copper sheet, and the coating thickness can cover the aluminum sheet, steel sheet, or copper sheet The surface is enough, then press tightly to discharge t...

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Abstract

The invention discloses an epoxy-graphenemetal bonding agent and a preparation method thereof and relates to the technical field of polymer based nanocomposites. The method comprises specific steps as follows: graphene and a silane coupling agent are dispersed in polyether amine with mechanical stirring and ultrasonic dispersing methods, then a mixture is added to an epoxy resin matrix to be stirred and mixed ultrasonically, and the epoxy-graphenemetal bonding agentis obtained finally. Compared with a pure epoxy resinmetal bonding agent, the epoxy-graphenemetal bonding agentprepared with the method has better performance, a tensile shear strengthperformance test indicates that bonding performance of the epoxy-graphenemetal bonding agent to an aluminum plate base material reaches 15.4 MPa, the bonding performance of the epoxy-graphenemetal bonding agent to a steel plate base material reaches 15.0 MPa, the bonding performance of the epoxy-graphenemetal bonding agent to a copper plate base material reaches 26.3 MPa, and the bonding performance of epoxy resin to a metal base material can be effectively improved.

Description

technical field [0001] The invention relates to the field of metal binders, in particular to an epoxy-graphene metal binder and a preparation method thereof. Background technique [0002] Graphene is a sp 2 The two-dimensional hyperconjugated honeycomb network structure material formed by hybrid orbital carbon atoms is quite different from other carbon materials such as carbon nanotubes, fullerenes, and diamonds. Since two professors, K.S.Novoselov and K.Kim of the University of Manchester in the United Kingdom used the micromechanical exfoliation method to process highly oriented pyrolytic graphite to obtain single-layer graphene for the first time in 2004, due to the excellent properties of graphene, its theoretical specific surface area can be reach 2630m 2 g -1 , the electron mobility reaches 200000cm 2 v -1 the s -1 , the thermal conductivity reaches 5000Wm -1 K -1 , and the Young's modulus reaches 1.0TPa and the light transmittance reaches 97.7%. These excellen...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J11/04C09J11/06C01B32/19
Inventor 林晓丹乔栩郭铁柱
Owner SOUTH CHINA UNIV OF TECH
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