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Poly(2-aminothiazole)/graphene-epoxy composite paint, and preparation method and applications thereof

A technology of aminothiazole and composite coatings, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve problems such as poor dispersion, corrosive medium shielding effect, and accelerated water molecule diffusion rate, so as to improve lubrication and anti-wear performance , reduce agglomeration, and improve the penetration performance of corrosion-resistant media

Inactive Publication Date: 2019-04-19
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dispersion of graphene in epoxy resin is poor, and its high specific surface area, strong van der Waals force and π-π bond interaction make graphene very easy to agglomerate, not only cannot shield the corrosive medium, but may also form The water vapor channel accelerates the diffusion rate of water molecules in the coating and reduces the mechanical properties and anti-corrosion properties of the coating. In the prior art, the anti-corrosion coating formed by using modified graphene oxide only has anti-corrosion function, and the preparation and dispersion process is complicated , for graft modification, only applicable to graphene oxide

Method used

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  • Poly(2-aminothiazole)/graphene-epoxy composite paint, and preparation method and applications thereof
  • Poly(2-aminothiazole)/graphene-epoxy composite paint, and preparation method and applications thereof
  • Poly(2-aminothiazole)/graphene-epoxy composite paint, and preparation method and applications thereof

Examples

Experimental program
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Embodiment 1

[0046] The poly(2-aminothiazole) / graphene-epoxy composite coating was quickly coated on the surface of the Q235 steel block, and dried at room temperature for 24 hours to obtain a poly(2-aminothiazole)-modified graphene-epoxy coating ,Specific steps are as follows:

[0047] (1) Using benzoyl peroxide and 1,4-dioxane as initiators, and 2-aminothiazole as polymerization monomers, uniformly mixing the initiators, monomers, solvents and catalysts to obtain by in-situ polymerization Poly(2-aminothiazole); The catalyst used therein is a catalyst known to those skilled in the art, which can be obtained commercially;

[0048] (2) Mixing and dispersing poly(2-aminothiazole) and graphene with a mass ratio of 1:4 in an organic solvent by physical ultrasonic vibration method, and exfoliating graphene to obtain poly(2-aminothiazole)-modified graphene Filler; the obtained poly(2-aminothiazole) modified graphene filler, organic solvent and epoxy resin are uniformly mixed under the condition...

Embodiment 2

[0059] The poly(2-aminothiazole) / graphene-epoxy composite coating was quickly coated on the surface of the Q235 steel block, and dried at room temperature for 24 hours to obtain a poly(2-aminothiazole)-modified graphene-epoxy coating ,Specific steps are as follows:

[0060] (1) Using benzoyl peroxide and 1,4-dioxane as initiators, and 2-aminothiazole as polymerization monomers, uniformly mixing the initiators, monomers, solvents and catalysts to obtain by in-situ polymerization Poly(2-aminothiazole); The catalyst used therein is a catalyst known to those skilled in the art, which can be obtained commercially;

[0061] (2) Mixing and dispersing poly(2-aminothiazole) and graphene with a mass ratio of 1.5:6 in an organic solvent by physical ultrasonic vibration method, and exfoliating graphene to obtain poly(2-aminothiazole)-modified graphene Filler; the poly(2-aminothiazole) modified graphene filler, organic solvent and epoxy resin are uniformly mixed at 25°C to obtain poly(2-a...

Embodiment 3

[0070] The poly(2-aminothiazole) / graphene-epoxy composite coating was quickly coated on the surface of the Q235 steel block, and dried at room temperature for 24 hours to obtain a poly(2-aminothiazole)-modified graphene-epoxy coating ,Specific steps are as follows:

[0071] (1) Using benzoyl peroxide and 1,4-dioxane as initiators, and 2-aminothiazole as polymerization monomers, uniformly mixing the initiators, monomers, solvents and catalysts to obtain by in-situ polymerization Poly(2-aminothiazole); The catalyst used therein is a catalyst known to those skilled in the art, which can be obtained commercially;

[0072] (2) Mixing and dispersing poly(2-aminothiazole) and graphene with a mass ratio of 1:6 in an organic solvent by physical ultrasonic vibration method, and exfoliating graphene to obtain poly(2-aminothiazole)-modified graphene Filler; the poly(2-aminothiazole) modified graphene filler, organic solvent and epoxy resin are uniformly mixed at 35°C to obtain poly(2-ami...

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Abstract

The invention discloses poly(2-aminothiazole) / graphene-epoxy composite paint, and a preparation method and applications thereof. The composite paint includes a poly(2-aminothiazole) modified graphenefilling material, epoxy resin and an organic solvent. A composite epoxy resin coating formed by the composite paint has excellent anti-corrosion and anti-attrition performance, can be applied to the surface treatment of metal materials, and has wide application prospects.

Description

technical field [0001] The invention relates to an anti-corrosion coating, in particular to a poly(2-aminothiazole) / graphene-epoxy composite coating and its preparation method and application, and belongs to the technical field of metal surface treatment. Background technique [0002] Graphene is a two-dimensional carbon nanomaterial with excellent physical and chemical properties newly discovered in recent years. Its large specific surface area, chemical stability, excellent barrier and rigidity make it a high-performance corrosion inhibitor and anti-friction coating. Research hotspots of additives. The layered structure of graphene two-dimensional nanosheets can effectively block the micropores formed by the curing solvent during the drying process. It is expected to effectively improve the anti-corrosion performance of epoxy resin; Its elasticity and super toughness can be used as small molecule additives in epoxy resin films to exert its strong lubricating and anti-wear...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/62
CPCC09D5/08C09D7/62C09D163/00C08K9/08C08K3/042
Inventor 赵海超邱诗惠杜鹏王娟王立平
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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