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A graphene hybrid organic-inorganic anti-corrosion coating and preparation method thereof

A technology of anti-corrosion coatings and graphene, applied in anti-corrosion coatings, epoxy resin coatings, alkali metal silicate coatings, etc., can solve the problems of anti-corrosion coating durability, poor anti-corrosion effect, etc., and achieve significant layer barrier corrosion and good flexibility Sexuality and strong adhesion

Active Publication Date: 2022-04-22
金隅微观(沧州)化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the poor durability and anti-corrosion effect of current anti-corrosion coatings, in order to make graphene play the best anti-corrosion function in anti-corrosion coatings, the present invention proposes a graphene hybrid organic-inorganic anti-corrosion coating and its preparation method

Method used

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  • A graphene hybrid organic-inorganic anti-corrosion coating and preparation method thereof
  • A graphene hybrid organic-inorganic anti-corrosion coating and preparation method thereof
  • A graphene hybrid organic-inorganic anti-corrosion coating and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] (1) Preparation of component A: Add sulfonated melamine formaldehyde resin and composite diffusing agent into water for high-speed stirring and dispersion, then add graphene, and use high-speed homogenization to disperse at 19000rpm for 15 minutes to obtain a fine graphene slurry, then add silicon Potassium acid is uniformly dispersed to obtain inorganic dispersion slurry; wherein, the mass ratio of sulfonated melamine formaldehyde resin, composite diffusing agent, graphene, potassium silicate, and water is 1:2:2:4:50; the composite diffusing agent is n-octanol, fatty alcohol polyoxyethylene ether, and dimethyl sulfoxide are compounded according to the mass ratio of 1:1:3;

[0034] Add the organic fluorosilicon polymer emulsion into the inorganic dispersion slurry, stir slowly and evenly, then add water-based epoxy resin, talc powder, acrylic leveling agent, defoamer, stir slowly, adjust the viscosity to 2300cP with water, and obtain A Components; wherein, the mass rati...

Embodiment 2

[0038] (1) Preparation of component A: Add sulfonated melamine formaldehyde resin and composite diffusing agent into water for high-speed stirring and dispersion, then add graphene, and use high-speed homogenization to disperse at 19000rpm for 15 minutes to obtain a fine graphene slurry, then add silicon Potassium acid is uniformly dispersed to obtain inorganic dispersion slurry; wherein, the mass ratio of sulfonated melamine formaldehyde resin, composite diffusing agent, graphene, potassium silicate, and water is 1:3:3:5:100; the composite diffusing agent is n-octanol, fatty alcohol polyoxyethylene ether, and dimethyl sulfoxide are compounded according to the mass ratio of 1:1:3;

[0039] Add the organic fluorosilicon polymer emulsion into the inorganic dispersion slurry, stir slowly and evenly, then add water-based epoxy resin, barium sulfate, acrylic leveling agent, defoamer, stir slowly, adjust the viscosity to 2000cP with water, and obtain A Components; wherein, the mass ...

Embodiment 3

[0043] (1) Preparation of component A: Add sulfonated melamine formaldehyde resin and composite diffusing agent into water for high-speed stirring and dispersion, then add graphene, and use high-speed homogenization to disperse at 19000rpm for 15 minutes to obtain a fine graphene slurry, then add silicon Potassium acid is uniformly dispersed to obtain an inorganic dispersion slurry; wherein, the mass ratio of sulfonated melamine formaldehyde resin, composite diffusing agent, graphene, potassium silicate, and water is 3:5:5:15:100; the composite diffusing agent is n-octanol, fatty alcohol polyoxyethylene ether, and dimethyl sulfoxide are compounded according to the mass ratio of 1:1:3;

[0044] Add the organic fluorosilicon polymer emulsion into the inorganic dispersion slurry, stir slowly and evenly, then add water-based epoxy resin, sericite, acrylic leveling agent, defoamer, stir slowly, adjust the viscosity to 2500cP with water, and obtain A Components; wherein, the mass ra...

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Abstract

The invention relates to the field of functional coatings, and discloses a graphene hybrid organic-inorganic anti-corrosion coating and a preparation method, which is obtained by mixing sulfonated melamine formaldehyde resin, composite diffusing agent, graphene, and potassium silicate in a certain proportion. Inorganic dispersion slurry, then add the organic fluorosilicon polymer emulsion into the inorganic dispersion slurry and stir evenly, finally add epoxy resin, inorganic filler, leveling agent, defoamer and adjust the viscosity with water in the range of 2000-2500cP to obtain Component A; mix nonylphenol phenalkamine with any one of diethylenetriamine, triethylenetetramine and tetraethylenepentamine in a certain proportion to obtain component B; component C is condensed aluminum phosphate; mix A, The graphene hybrid organic-inorganic anti-corrosion coating obtained after the three components of B and C are mixed in a certain proportion. The graphene hybrid organic-inorganic anti-corrosion coating prepared by the invention has good anti-corrosion performance and durability.

Description

technical field [0001] The invention relates to the field of functional plastics, in particular to a graphene hybrid organic-inorganic anti-corrosion coating and a preparation method. Background technique [0002] At present, with the rapid development of the construction industry, the anti-corrosion requirements for concrete used in bridges, ports and industrial facilities are getting higher and higher. Conventional anti-corrosion coatings are difficult to meet anti-corrosion requirements. A large number of steel bars are used in concrete, and the corrosion of steel bars is the key to the degradation of concrete performance. Usually, steel bars are implanted into concrete to increase the strength of concrete. However, due to the nature of concrete, there are many micropores in it. Acids, alkalis, and salts in the external environment are easy to directly corrode steel bars through micropores, which directly leads to the deterioration of concrete. Cracking and sudden loss ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/04C09D5/08C09D163/00C09D183/08C09D7/61C09D7/63C09D7/65
CPCC09D1/04C09D5/08C09D163/00C09D7/61C09D7/63C09D7/65C08K2003/327C08L83/08C08L61/32C08L71/02C08K3/042C08K3/32C08K5/05C08K5/41
Inventor 曾军堂陈庆司文彬李钧霍庆城
Owner 金隅微观(沧州)化工有限公司
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