Graphene epoxy zinc-rich coating material

A technology based on zinc-rich epoxy and graphene, applied in the field of coatings, can solve problems such as easy agglomeration and difficult dispersion, and achieve the effect of improving easy agglomeration and prolonging the shelf life

Inactive Publication Date: 2021-01-08
常州市大使涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, as a nanomaterial, graphene is easy to agglomerate and difficult to disperse, which limits its application in coatings. Therefore, a graphene epoxy zinc-rich coating is proposed.

Method used

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  • Graphene epoxy zinc-rich coating material
  • Graphene epoxy zinc-rich coating material
  • Graphene epoxy zinc-rich coating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First prepare the graphene slurry:

[0021] 1) Add 2g of ammonium persulfate to 200ml of deionized water, after it dissolves, add 10g of acrylic acid monomer and 16g of isopropanol, heat and stir the mixture, and continue to add 80g of acrylic acid monomer when the temperature is 65-70°C , 5g of ammonium persulfate and 40ml of deionized water, and continue to stir at a low speed for 30min to prepare an acrylic acid solution;

[0022] 2) Add sodium hydroxide and ethanolamine solution to the acrylic acid solution prepared in step 1) until the pH value of the mixed solution is 9, then add graphene powder to stir, stir evenly, and use a sand mill to grind and disperse the mixture to obtain graphene The slurry is ready for use.

[0023] Then prepare the graphene epoxy zinc-rich coating:

[0024] 1) Mix 50 parts of epoxy resin, 30 parts of polyamide curing agent, 5 parts of film-forming aid and 20 parts of deionized water;

[0025] 2) Add 40 parts of zinc powder, 5 parts o...

Embodiment 2

[0027] First prepare the graphene slurry:

[0028] 1) Add 2g of ammonium persulfate to 200ml of deionized water, after it dissolves, add 10g of acrylic acid monomer and 16g of isopropanol, heat and stir the mixture, and continue to add 80g of acrylic acid monomer when the temperature is 65-70°C , 5g of ammonium persulfate and 40ml of deionized water, and continue to stir at a low speed for 30min to prepare an acrylic acid solution;

[0029] 2) Add sodium hydroxide and ethanolamine solution to the acrylic acid solution prepared in step 1) until the pH value of the mixed solution is 9, then add graphene powder to stir, stir evenly, and use a sand mill to grind and disperse the mixture to obtain graphene The slurry is ready for use.

[0030] Then prepare the graphene epoxy zinc-rich coating:

[0031] 1) Mix 55 parts of epoxy resin, 32 parts of polyamide curing agent, 6 parts of film-forming aid and 25 parts of deionized water;

[0032] 2) Add 45 parts of zinc powder, 6 parts o...

Embodiment 3

[0034] First prepare the graphene slurry:

[0035] 1) Add 2g of ammonium persulfate to 200ml of deionized water, after it dissolves, add 10g of acrylic acid monomer and 16g of isopropanol, heat and stir the mixture, and continue to add 80g of acrylic acid monomer when the temperature is 65-70°C , 5g of ammonium persulfate and 40ml of deionized water, and continue to stir at a low speed for 30min to prepare an acrylic acid solution;

[0036] 2) Add sodium hydroxide and ethanolamine solution to the acrylic acid solution prepared in step 1) until the pH value of the mixed solution is 9, then add graphene powder to stir, stir evenly, and use a sand mill to grind and disperse the mixture to obtain graphene The slurry is ready for use.

[0037] Then prepare the graphene epoxy zinc-rich coating:

[0038] 1) Mix 57 parts of epoxy resin, 34 parts of polyamide curing agent, 6.5 parts of film-forming aid and 27 parts of deionized water;

[0039] 2) Add 48 parts of zinc powder, 6.5 par...

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Abstract

The invention discloses the technical field of coating materials, and particularly relates to a graphene epoxy zinc-rich coating material, which is composed of 50-70 parts of epoxy resin, 2-8 parts ofgraphene slurry, 60-90 parts of zinc powder and the like. According to the invention, by preparing a polyacrylate dispersing agent, the polyacrylate dispersing agent is an anionic polyelectrolyte andhas a certain dispersing effect on graphene, alcohol amine is used as a neutralizer, and the anchoring group of the alcohol amine is more easily combined with the surface of graphene, so that graphene powder is uniformly dispersed in a coating material taking epoxy resin as a main component so as to effectively improve the characteristics that the graphene powder is easy to agglomerate and difficult to disperse in the coating material, and the graphene powder is more widely applied to the coating material; and compared with the existing graphene epoxy zinc-rich coating material obtained by directly adding graphene powder into the coating material, the graphene epoxy zinc-rich coating material of the invention has the following characteristics that the graphene powder is prepared into graphene slurry which is easier to disperse in advance, so that the characteristics that the graphene powder is easy to agglomerate and difficult to disperse in the coating are effectively improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to graphene epoxy zinc-rich coatings. Background technique [0002] Graphene is a new type of two-dimensional material with a single-layer sheet structure composed of carbon atoms. 2 The hexagonal structure composed of hybrid orbitals is a planar structure of honeycomb lattice, which is the basic unit for forming zero-dimensional fullerenes, one-dimensional carbon nanotubes and three-dimensional graphite. The special structure of graphene makes it have many excellent physical and chemical properties, such as strong tensile strength, high carrier mobility, high thermal conductivity and low resistivity, etc. At present, graphene has a special structure and excellent performance It is used in the fields of new energy batteries, nanocomposites, biosensors, and catalyst carriers. At the same time, these advantages of graphene can make it have a good application prospect in the field of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/62
CPCC08K2003/0893C09D5/106C09D163/00C09D7/62C08K3/08C08K9/08C08K3/042
Inventor 戴仁兴顾秋琴
Owner 常州市大使涂料有限公司
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