High-performance water-based heavy anti-corrosion paint and preparation method thereof

A heavy-duty, high-performance technology, used in anti-corrosion coatings, coatings, epoxy resin coatings, etc., can solve problems such as poor thick coating, poor water and chemical resistance, and cannot be used in corrosive environments, to meet the requirements of lightweight coatings. The effect of improving the adhesion, enhancing the adhesion and improving the resistance to salt spray

Inactive Publication Date: 2018-10-23
重庆绿涂腾科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, compared with the currently used solvent-based, high-solid and solvent-free anti-corrosion coatings, water-based anti-corrosion coatings still have some insurmountable shortcomings, such as poor thick coatability and poor water and chemical resistance, which prevent them from being used in some harsh applications. In the corrosive environment, this is also one of the main reasons why the environmentally friendly water-based anti-corrosion coatings are still not used on a large scale despite the strong support of the policy

Method used

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  • High-performance water-based heavy anti-corrosion paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of water-based heavy-duty anti-corrosion paint

[0028] (1) Preparation of waterborne epoxy zinc-rich primer

[0029] Weigh 10 parts respectively to get the solid content to be 80wt%, the water-based polyamide curing agent that the active hydrogen equivalent is 306, 8 parts of cosolvent (ethylene glycol ethyl ether), 3 parts of rheology modifier (organic bentonite) and 80 parts of particle size For 1000-mesh zinc powder, first add water-based polyamide curing agent and co-solvent (ethylene glycol ether) into the paint mixing tank with cooling device, stir and mix until the water-based polyamide curing agent is fully dissolved, and then stir Add the rheological additive (organic bentonite) and stir at the speed of 1000r / min for 12min at the same time, and finally add zinc powder and continue to stir at the speed of 2000r / min for 25min until the fineness≤20μm, then stop the dispersion, according to the product index Adjust the viscosity to the specified requi...

Embodiment 2

[0039] Preparation of water-based heavy-duty anti-corrosion paint

[0040] (1) Preparation of waterborne epoxy zinc-rich primer

[0041] Weighing 12 parts respectively to get the solid content as 80wt%, the water-based polyamide curing agent whose active hydrogen equivalent is 306, 15 parts of cosolvent (ethylene glycol butyl ether), 4.5 parts of rheological modifier (attapulgite) and 70 parts Zinc powder with a particle size of 500 mesh, first add water-based polyamide curing agent and cosolvent (ethylene glycol butyl ether) into the paint mixing tank with cooling device, stir and mix until the water-based polyamide curing agent is fully dissolved, Then add the rheology additive (attapulgite) while stirring again and stir at the speed of 1000r / min for 10min at the same time, finally add zinc powder and continue stirring at the speed of 2000r / min for 30min until the fineness≤20μm, then stop the dispersion. According to the index of the product, the viscosity is adjusted to th...

Embodiment 3

[0051] Preparation of water-based heavy-duty anti-corrosion paint

[0052] (1) Preparation of waterborne epoxy zinc-rich primer

[0053] Weighing 15 parts respectively to get the solid content as 80wt%, active hydrogen equivalent of 306 water-based polyamide curing agent, 12 parts of cosolvent (ethylene glycol ethyl ether), 6 parts of rheology modifier (fumed silica) and 60 parts Zinc powder with a particle size of 800 meshes, first add a water-based polyamide curing agent and a cosolvent (ethylene glycol ether) into a paint mixing tank with a cooling device, stir and mix until the water-based polyamide curing agent is fully dissolved, and then In the case of re-stirring, add a rheological additive (fumed silica) and stir at a speed of 1000r / min for 15min at the same time, and finally add zinc powder and continue stirring at a speed of 2000r / min for 20min until the fineness≤20μm, then stop the dispersion. According to the index of the product, the viscosity is adjusted to the...

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Abstract

The invention relates to high-performance water-based heavy anti-corrosion paint and a preparation method thereof, and belongs to the technical field of water-based anti-corrosion paint. The water-based heavy anti-corrosion paint comprises water-based epoxy zinc rich primer, water-based epoxy graphene-modified intermediate paint and water-based polyurethane finishing paint, wherein an intermediatecoating uses the water-based epoxy graphene-modified intermediate paint; properties, such as an extra-large specific surface area, good barrier property, high chemical stability and good electrical conductivity, of graphene are utilized, so the overall performance of the anti-corrosion compound coating is greatly improved, for example, an adhesive force of the coating to a base material is reinforced, the abrasive resistance and the anti-corrosion property of the paint are improved, and the coating has the characteristics of environmental protection and safety, and no secondary pollution andthe like. Three types of the paint are compounded for using, a thickness of a paint film can be greatly reduced under the precondition without affecting the anti-corrosion property, and the requirements of lightweight coating are satisfied. The preparation method of the water-based heavy anti-corrosion paint is simple, and suitable for industrial production, and raw materials are easily obtained.

Description

technical field [0001] The invention belongs to the technical field of water-based anti-corrosion paint, and in particular relates to a high-performance water-based heavy-duty anti-corrosion paint and a preparation method thereof. Background technique [0002] As environmental pollution and PM 2.5 issues are paid more and more attention, the contribution of volatile organic chemicals (VOC) emissions in various coatings to PM 2.5 and the harm to the environment are increasingly recognized and valued by people. With the collection of consumption tax on coatings with high VOC emissions and the introduction of VOC emission fees in some areas, the research and development and promotion of water-based coatings has become imperative. and power industries, as well as industrial tanks, ships and chemical industries, etc. [0003] However, compared with the currently used solvent-based, high-solid and solvent-free anti-corrosion coatings, water-based anti-corrosion coatings still hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D5/10C09D7/63C09D7/65C09D7/61
CPCC08K2003/0893C08K2003/2241C08K2201/003C08K2201/014C09D5/106C09D7/61C09D7/63C09D7/65C09D163/00C09D175/04C08K3/346C08K3/08C08K3/36C08K3/34C08K3/042C08L33/02C08K3/00C08K3/22
Inventor 吴声坤李朝龙池姚
Owner 重庆绿涂腾科技有限公司
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