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Graphene activated waterborne epoxy zinc-rich anticorrosive paint and preparation method thereof

A water-based epoxy zinc-rich, anti-corrosion coating technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the side effects of zinc corrosion deposit shielding protection, zinc powder cannot be oxidized, and electrons cannot be replenished, etc. , to achieve the effect of guaranteeing super scratch resistance, good toughness, and inhibiting infiltration and penetration

Pending Publication Date: 2022-08-05
烟台核电石墨烯材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It is precisely because of the shielding protection of zinc corrosion deposits that the zinc powder in the paint film cannot be oxidized, and the electrons lost when the steel substrate is corroded in a highly acidic and humid environment for a long time cannot be replenished, and the shielding protection of zinc corrosion deposits works instead. To side effects, the zinc powder in the zinc-rich paint cannot be effectively utilized

Method used

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  • Graphene activated waterborne epoxy zinc-rich anticorrosive paint and preparation method thereof
  • Graphene activated waterborne epoxy zinc-rich anticorrosive paint and preparation method thereof
  • Graphene activated waterborne epoxy zinc-rich anticorrosive paint and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The formula of a kind of graphene-activated water-based epoxy zinc-rich anti-corrosion coating described in this embodiment is composed of A and B components, and A component is made of the following raw materials by weight percentage:

[0039]

[0040] Component B is made from the following components and component percentage raw materials: waterborne epoxy resin curing agent 22%.

[0041] Preparation process: add a certain mass of water-based epoxy resin emulsion, dispersant, and graphene into the container at a speed of 1000 r / min, and stir for 60 to 90 minutes to ensure that no suspended fine particles are visible to the naked eye; then add a certain amount to the above mixed solution. The antifoaming agent and thixotropic agent of the mass number are stirred for 15 minutes at a rotating speed of 800r / min or until the stirring is uniform; a certain mass of zinc powder and deionized water are added to the above mixed solution, and the rotating speed is 1200r / min, s...

Embodiment 2

[0043] The formula of a kind of graphene-activated water-based epoxy zinc-rich anti-corrosion coating described in this embodiment is composed of A and B components, and A component is made of the following raw materials by weight percentage:

[0044]

[0045] Component B is made from the following components and component percentage raw materials: waterborne epoxy resin curing agent 22%.

[0046] The preparation process is exactly the same as that of Example 1.

Embodiment 3

[0048] The formula of a kind of graphene-activated water-based epoxy zinc-rich anti-corrosion coating described in this embodiment is composed of A and B components, and A component is made of the following raw materials by weight percentage:

[0049]

[0050] Component B is made from the following components and component percentage raw materials: waterborne epoxy resin curing agent 22%.

[0051] The preparation process is exactly the same as that of Example 1.

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Abstract

The invention relates to a graphene-activated water-based epoxy zinc-rich anticorrosive coating, in particular to a graphene-activated water-based epoxy zinc-rich anticorrosive coating and a preparation method thereof. Nanoscale graphene is added, the electron mobility of graphene at a normal temperature exceeds 15000 cm < 2 > / V.s, the resistivity is only 10 <-6 > omega.cm, and the graphene has the advantages that the graphene can be used for preparing the graphene-activated water-based epoxy zinc-rich anticorrosive coating; carriers in the graphene follow the quantum Hall effect, back scattering cannot be generated when the carriers touch impurities, a special quantum tunnel effect is formed, the electron moving speed between graphene layers is ultra-high, the thickness of the graphene is only 0.335 nm, and the graphene has the ultra-large specific surface area of 2630 m < 2 > / g and can be better and evenly dispersed between phases and wrap zinc powder particles. Electrons lost by zinc are quickly transferred to the surface of a paint film, and the oxidation rate of zinc powder in the paint film blocked by a formed compact basic zinc carbonate layer is greatly improved, so that a base material is protected from being oxidized, and the corrosion resistance of the paint film is effectively improved.

Description

technical field [0001] The invention relates to an environment-friendly graphene-activated water-based epoxy zinc-rich anti-corrosion coating, in particular to a graphene-activated water-based epoxy zinc-rich anti-corrosion coating and a preparation method. Background technique [0002] In recent years, the country's requirements for environmental protection in industrial production have become increasingly strict, and various ministries and commissions have issued relevant policies to guide the coatings industry to develop in the direction of environmental protection. Anti-corrosion coatings account for the largest market share in industrial coatings. In order to meet the requirements of environmental protection policies, water-based anti-corrosion coatings have received widespread attention from researchers at home and abroad. Among the anti-corrosion coatings, the zinc-rich coating is the most widely used and has the best anti-corrosion performance, because of its physica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/20C09D7/61
CPCC09D163/00C09D5/106C09D7/20C09D7/61C08K2201/006C08K2003/0893C08K3/08C08K3/042
Inventor 侯胜华张晓峰
Owner 烟台核电石墨烯材料研究院有限公司
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