A kind of metal substrate graphene modified long-term anti-corrosion paint and preparation method thereof

Abstract

Belonging to the technical field of anticorrosive paint, the invention in particular relates to a metal substrate graphene modified long-acting anticorrosive paint and a preparation method thereof. The metal substrate graphene modified long-acting anticorrosive paint consists of a component A and a component B. The component A is composed of the following raw materials by weight: 40-50 parts of epoxy resin, 10-20 parts of modified graphene, 15-20 parts of pigment, 15-20 parts of a cosolvent, 0.3-0.8 part of a defoamer, 0.3-0.8 part of a leveling agent, 0.5-1 part of an anti-settling agent and0.5-1 part of a dispersant; the component B is composed of the following components by weight: 50-60 parts of etherified amino resin, 25-35 parts of phenolic aldehyde amine, and 20-30 parts of a cosolvent. The metal substrate graphene modified long-acting anticorrosive paint provided by the invention has the advantages of long-lasting and excellent anticorrosive performance, strong substrate adhesion, high mechanical strength, excellent friction resistance, excellent salt fog resistance, good water resistance, chemical resistance, oil resistance and impact resistance, strong construction adaptability, etc. The operation method is simple and is easy to operate, is low in raw material and energy consumption cost, and is environment-friendly and pollution-free, the coating film dries quickly,and the construction period is short.

Description

technical field

[0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to a graphene-modified long-acting anti-corrosion coating for metal substrates and a preparation method thereof. Background technique

[0002] Corrosion of metal is a phenomenon in which metal is destroyed by chemical or electrochemical action of environmental medium. The corrosion of metals spreads all over the national economy and brings huge losses to the national economy. In industrially developed countries, the direct economic loss caused by corrosion accounts for 1% to 4% of the total output value of the national economy, the annual corroded and rusted steel accounts for about 20% of the output, and about 30% of the equipment is scrapped due to corrosion. In China, the economic loss caused by metal corrosion is as high as 30 billion yuan per year, accounting for 4% of the gross national product. For a long time, people have used a variety of techn...

Examples

Embodiment 1

[0043] A metal substrate graphene modified long-acting anti-corrosion paint, it is made up of A, B two components, and the weight ratio of described A component and B component is 100:30;

[0044] Wherein, described component A is made up of following raw material by weight:

[0045] 45 parts of epoxy resin with an epoxy value of 0.35, 15 parts of modified graphene, 15 parts of rutile titanium dioxide with a fineness of 50nm, 20 parts of cyclohexanone, and 0.5 parts of defoamer BYK066N, selected from BYK Chemicals Company, leveling agent EFKA3777 0.5 parts, selected from Ciba Company, anti-settling agent 6900-20X 0.8 parts, selected from Disparon Company, dispersant TEGO Dispers 685 0.8 parts, selected from Tego Company;

[0046] Described B component is made up of following raw material by weight:

[0047] Methylated amino resin and isobutanol etherified amino resin are composed of 55 parts of etherified amino resin, 30 parts of phenalkamine and 30 parts of cyclohexanone by ...

Embodiment 2

[0062] A metal substrate graphene modified long-acting anti-corrosion paint, it is made up of A, B two components, and the weight ratio of described A component and B component is 100:35;

[0063] Wherein, described component A is made up of following raw material by weight:

[0064] 40 parts of epoxy resin with an epoxy value of 0.56, 10 parts of modified graphene, 18 parts of phthalocyanine blue with a fineness of 100nm, 18 parts of butanol, and 0.8 parts of defoamer BYK066N, selected from BYK Chemical Company, flow 0.3 part of leveling agent EFKA3777, selected from Ciba Company, 1 part of anti-settling agent 6900-20X, selected from Disparon Company, 1 part of dispersant TEGO Dispers 685, selected from Tego Company;

[0065] Described B component is made up of following raw material by weight:

[0066] Methylated amino resin and isobutanol etherified amino resin are composed of 60 parts of etherified amino resin, 25 parts of phenalkamine and 25 parts of butanol by mass 3:1;...

Embodiment 3

[0081] A metal substrate graphene modified long-acting anti-corrosion paint, it is made up of A, B two components, and the weight ratio of described A component and B component is 100:25;

[0082] Wherein, described component A is made up of following raw material by weight:

[0083] 50 parts of epoxy resin with an epoxy value of 0.20, 20 parts of modified graphene, 20 parts of high-pigment carbon black with a fineness of 200nm, 15 parts of isopropanol, and 0.3 parts of defoamer BYK066N, selected from BYK Chemicals 0.8 part of leveling agent EFKA3777, selected from Ciba Company, 0.5 part of anti-settling agent 6900-20X, selected from Disparon Company, 1 part of dispersant TEGO Dispers 685, selected from Tego Company;

[0084] Described B component is made up of following raw material by weight:

[0085] Methylated amino resin and isobutanol etherified amino resin are composed of 50 parts of etherified amino resin, 35 parts of phenalkamine, and 30 parts of isopropanol by mass ...

technical field

[0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to a graphene-modified long-acting anti-corrosion coating for metal substrates and a preparation method thereof. Background technique

[0002] Corrosion of metal is a phenomenon in which metal is destroyed by chemical or electrochemical action of environmental medium. The corrosion of metals spreads all over the national economy and brings huge losses to the national economy. In industrially developed countries, the direct economic loss caused by corrosion accounts for 1% to 4% of the total output value of the national economy, the annual corroded and rusted steel accounts for about 20% of the output, and about 30% of the equipment is scrapped due to corrosion. In China, the economic loss caused by metal corrosion is as high as 30 billion yuan per year, accounting for 4% of the gross national product. For a long time, people have used a variety of techn...

Examples

Embodiment 1

[0043] A metal substrate graphene modified long-acting anti-corrosion paint, it is made up of A, B two components, and the weight ratio of described A component and B component is 100:30;

[0044] Wherein, described component A is made up of following raw material by weight:

[0045] 45 parts of epoxy resin with an epoxy value of 0.35, 15 parts of modified graphene, 15 parts of rutile titanium dioxide with a fineness of 50nm, 20 parts of cyclohexanone, and 0.5 parts of defoamer BYK066N, selected from BYK Chemicals Company, leveling agent EFKA3777 0.5 parts, selected from Ciba Company, anti-settling agent 6900-20X 0.8 parts, selected from Disparon Company, dispersant TEGO Dispers 685 0.8 parts, selected from Tego Company;

[0046] Described B component is made up of following raw material by weight:

[0047] Methylated amino resin and isobutanol etherified amino resin are composed of 55 parts of etherified amino resin, 30 parts of phenalkamine and 30 parts of cyclohexanone by ...

Embodiment 2

[0062] A metal substrate graphene modified long-acting anti-corrosion paint, it is made up of A, B two components, and the weight ratio of described A component and B component is 100:35;

[0063] Wherein, described component A is made up of following raw material by weight:

[0064] 40 parts of epoxy resin with an epoxy value of 0.56, 10 parts of modified graphene, 18 parts of phthalocyanine blue with a fineness of 100nm, 18 parts of butanol, and 0.8 parts of defoamer BYK066N, selected from BYK Chemical Company, flow 0.3 part of leveling agent EFKA3777, selected from Ciba Company, 1 part of anti-settling agent 6900-20X, selected from Disparon Company, 1 part of dispersant TEGO Dispers 685, selected from Tego Company;

[0065] Described B component is made up of following raw material by weight:

[0066] Methylated amino resin and isobutanol etherified amino resin are composed of 60 parts of etherified amino resin, 25 parts of phenalkamine and 25 parts of butanol by mass 3:1;...

Embodiment 3

[0081] A metal substrate graphene modified long-acting anti-corrosion paint, it is made up of A, B two components, and the weight ratio of described A component and B component is 100:25;

[0082] Wherein, described component A is made up of following raw material by weight:

[0083] 50 parts of epoxy resin with an epoxy value of 0.20, 20 parts of modified graphene, 20 parts of high-pigment carbon black with a fineness of 200nm, 15 parts of isopropanol, and 0.3 parts of defoamer BYK066N, selected from BYK Chemicals 0.8 part of leveling agent EFKA3777, selected from Ciba Company, 0.5 part of anti-settling agent 6900-20X, selected from Disparon Company, 1 part of dispersant TEGO Dispers 685, selected from Tego Company;

[0084] Described B component is made up of following raw material by weight:

[0085] Methylated amino resin and isobutanol etherified amino resin are composed of 50 parts of etherified amino resin, 35 parts of phenalkamine, and 30 parts of isopropanol by mass ...

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