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Graphene anticorrosive paint with ultrastrong anticorrosive capability

A technology of anti-corrosion coatings and graphene, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of long coating cycle, high material cost and high construction cost, achieve good construction performance, reduce supporting coatings, Effect of reducing VOC emissions

Inactive Publication Date: 2018-01-19
CHONGQING SANXIA PAINTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the present invention aims to solve the problems that traditional heavy-duty anti-corrosion coatings must be coated with three layers (primer, intermediate paint and top coat), resulting in long coating cycle, high material cost and high construction cost. A graphene anti-corrosion coating with super anti-corrosion ability, suitable for anti-corrosion on the surface of various steel components, such as towers, bridges, power facilities, chemical equipment, storage tanks, containers, ships, fences, etc., only need to apply two coats film can achieve the anti-corrosion effect of traditional three-layer anti-corrosion coating

Method used

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  • Graphene anticorrosive paint with ultrastrong anticorrosive capability
  • Graphene anticorrosive paint with ultrastrong anticorrosive capability
  • Graphene anticorrosive paint with ultrastrong anticorrosive capability

Examples

Experimental program
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Effect test

specific Embodiment 1

[0056] Preparation of graphene-infiltrated anticorrosion coatings

[0057] A component:

[0058] Step 1: Take by weighing 212Kg of modified epoxy resin liquid as modified epoxy resin, 1.8 kg of high-efficiency graphene as graphene, 0.5 kg of nonionic dispersant as dispersant, and 1.5 kg of organic bentonite as anti-sedimentation agent. kg, as the xylene 49kg of solvent, the n-butanol 31g of solvent mixes and stirs evenly; , stir and disperse for 10 minutes, grind. Grind for 45 minutes under the conditions of a rotation speed of 1369 rpm and a temperature of 28-42°C, the fineness of the ground slurry reaches 25um, and the solid content is 51% by sampling and testing, and the material is discharged for use.

[0059] Step 2: take by weighing the slurry 136kg that step 1 makes, as the modified epoxy resin liquid 48kg of modified epoxy resin, as the nonionic dispersant 0.4kg of dispersant, as the titanium dioxide 79kg of pigment filler, as 116 kg of micaceous iron oxide ash for p...

Embodiment 2

[0065] Preparation of graphene-infiltrated anticorrosion coatings

[0066] A component:

[0067] Step 1: Take by weighing 106Kg of modified epoxy resin liquid as modified epoxy resin, 0.8 kg of efficient graphene as graphene, 0.2 kg of nonionic dispersant as dispersant, 0.9 kg of organic bentonite as anti-sedimentation agent kg, as solvent xylene 33.4kg, as solvent n-butanol 21.3kg mixed and stirred evenly;, stirred and dispersed for 10 minutes, and ground. Grind for 45 minutes under the conditions of a rotation speed of 1403 rpm and a temperature of 26-45°C, the fineness of the ground slurry reaches 25um, and the solid content is 50% by sampling and testing, and the material is discharged for use.

[0068] Step 2: Take by weighing 108.6 kg of the slurry prepared in step 1, 24.7 kg of modified epoxy resin liquid as modified epoxy resin, 0.3 kg of non-ionic dispersant as dispersant, 74.5 kg of titanium dioxide as pigment and filler kg, 97kg of micaceous iron oxide ash as pigm...

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Abstract

The invention discloses a graphene anticorrosive paint with ultrastrong anticorrosive capability. The graphene anticorrosive paint is formed by mixing a paint A and a paint B; the paint A comprises the following main ingredients in percentage by weight: 10-50% of epoxy resin, 0.5-3% of graphene, 10-20% of fluorophosphate, 30-60% of pigments and fillers, 0.1-3% of auxiliaries, and 8-20% of solvent,and the paint B comprises the following main ingredients in percentage by weight:10-100% of amine curing agent, and 0-90% of solvent; the paint A and the paint B are respectively packaged, and the mixing ratio is prepared according to the construction demand. The graphene anticorrosive paint has ultrastrong anti-neutral salt spray performance, and single paint film can resist neutral salt spray for more than 1500h; the ultrastrong anticorrosive performance can be achieved after being matched with two layers of finish paint for coating, the anticorrosive effect achieved by coating three layersof the traditional anticorrosive paint can be achieved only by coating two layers of paint films; the paint reduces the mating coatings, and the emission of VOC can be decreased; and after being coated on a base material with the steel structure surface treatment grade being Sa2.5, the adhesion force of the paint film is up to 10MPa or above, thus meeting the coating construction requirements ofvarious steel structures.

Description

technical field [0001] The invention relates to a graphene anticorrosion coating applied on steel structures in the field of paint making technology and coating construction, in particular to a kind of anti-corrosion coating composed of modified epoxy resin, amine curing agent, graphene, fluorophosphate and other materials. Graphene anti-corrosion coating with strong anti-corrosion ability. Background technique [0002] In recent years, with the continuous development of heavy industry, large-scale projects have higher and higher requirements for anti-corrosion coatings. Traditional heavy-duty anti-corrosion coatings, such as epoxy zinc-rich coatings, can no longer meet the construction technical requirements of modern anti-corrosion coatings due to their limitations in construction; traditional heavy-duty anti-corrosion coatings, such as epoxy zinc-rich coatings Due to performance limitations, three layers must be applied in heavy-duty anti-corrosion engineering coatings, ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/61
Inventor 李忠杰魏雪峰王秀英赵定乾舒科
Owner CHONGQING SANXIA PAINTS CO LTD
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