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Preparation method of organically modified graphene with core-shell structure, anticorrosive powder coating and preparation method of anticorrosive powder coating

A technology of core-shell structure and powder coatings, which is applied in anti-corrosion coatings, polyester coatings, dyeing polymer organic compound treatment, etc., can solve the problem of reducing the mechanical properties of graphene powder coating anti-corrosion agents, graphene cannot be tiled, and does not take into account Graphene secondary arrangement and other issues

Active Publication Date: 2020-01-03
JIANGSU HUAGUANG POWDER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention adds an appropriate amount of graphene on the basis of traditional resin powder coatings, which greatly improves the mechanical properties, electrical conductivity, thermal conductivity, flame retardancy, corrosion resistance and weather resistance of resin powder coatings, but graphene is added to the resin. The breadth of its application is limited, and the problem of the secondary arrangement of graphene in the coating is not considered, and the disadvantages such as graphene curling after melt extrusion and other processes are caused. After high temperature solidification, graphene cannot be tiled on the layer, thereby reducing the mechanical properties of preservatives in graphene powder coatings

Method used

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  • Preparation method of organically modified graphene with core-shell structure, anticorrosive powder coating and preparation method of anticorrosive powder coating
  • Preparation method of organically modified graphene with core-shell structure, anticorrosive powder coating and preparation method of anticorrosive powder coating
  • Preparation method of organically modified graphene with core-shell structure, anticorrosive powder coating and preparation method of anticorrosive powder coating

Examples

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Effect test

Embodiment 1

[0043] A kind of anticorrosion powder coating, the mass fraction of the component that it comprises and each component are as follows:

[0044] Polyester resin: 50 parts,

[0045] Curing agent: 3.8 parts;

[0046] Organically modified graphene with core-shell structure: 5 parts;

[0047] Titanium dioxide: 15 parts;

[0048] Barium sulfate: 22.2 parts;

[0049] Benzoin: 2 parts;

[0050] Brightener: 2 parts;

[0051] Leveling agent: 2 parts.

[0052] Specifically, the polyester resin is an unsaturated polyester resin, which is a film former; the curing agent chemically reacts with the terminal acid groups of the polyester, thereby improving the physical and chemical properties of the coating; the barium sulfate acts as a The use of fillers reduces costs and increases certain physical and chemical properties; the benzoin is used as a defoamer; the brightener is used as an anti-interference agent; the titanium dioxide is used as a pigment to improve the hiding power of the ...

Embodiment 2

[0068] A kind of anticorrosion powder coating, the mass fraction of the component that it comprises and each component are as follows:

[0069] Polyester resin: 50 parts,

[0070] Curing agent: 3.8 parts;

[0071] Organically modified graphene with core-shell structure: 7 parts;

[0072] Titanium dioxide: 15 parts;

[0073] Barium sulfate: 22.2 parts;

[0074] Benzoin: 2 parts;

[0075] Brightener: 2 parts;

[0076] Leveling agent: 2 parts.

[0077] Specifically, the polyester resin is an unsaturated polyester resin, which is a film former; the curing agent chemically reacts with the terminal acid groups of the polyester, thereby improving the physical and chemical properties of the coating; the barium sulfate acts as a The use of fillers reduces costs and increases certain physical and chemical properties; the benzoin is used as a defoamer; the brightener is used as an anti-interference agent; the titanium dioxide is used as a pigment to improve the hiding power of the ...

Embodiment 3

[0093] A kind of anticorrosion powder coating, the mass fraction of the component that it comprises and each component are as follows:

[0094] Polyester resin: 50 parts,

[0095] Curing agent: 3.8 parts;

[0096] Organically modified graphene with core-shell structure: 9 parts;

[0097] Titanium dioxide: 15 parts;

[0098] Barium sulfate: 22.2 parts;

[0099] Benzoin: 2 parts;

[0100] Brightener: 2 parts;

[0101] Leveling agent: 2 parts.

[0102] Specifically, the polyester resin is an unsaturated polyester resin, which is a film former; the curing agent chemically reacts with the terminal acid groups of the polyester, thereby improving the physical and chemical properties of the coating; the barium sulfate acts as a The use of fillers reduces costs and increases certain physical and chemical properties; the benzoin is used as a defoamer; the brightener is used as an anti-interference agent; the titanium dioxide is used as a pigment to improve the hiding power of the ...

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Abstract

The invention discloses a preparation method of organically modified graphene with a core-shell structure, an anticorrosive powder coating and a preparation method of the anticorrosive powder coating.The preparation method of the organically modified graphene with the core-shell structure comprises the following steps: dissolving graphene, polyamide wax and polyethylene wax in a mixed solution ofxylene and ethyl acetate, carrying out uniform stirring, and carrying out freeze-drying to obtain primary modified graphene; and adding the primary modified graphene into a polytetrafluoroethylene emulsion, and carrying out freeze-drying to obtain organic modified graphene with the core-shell structure. Through the preparation method of the organically modified graphene with the core-shell structure, graphene can be organically modified twice to form the core-shell structure; and the prepared organic modified graphene with the core-shell structure is applied to the anticorrosive powder coating, so that corrosion resistance, weather resistance and mechanical properties of the coating are effectively improved.

Description

technical field [0001] The invention relates to a preparation method of organically modified graphene with a core-shell structure, an anti-corrosion powder coating and a preparation method thereof. Background technique [0002] Metals are widely used in national life, but they are faced with the problem of corrosion. According to related reports, corrosion brings serious losses to the national economy every year, and also causes certain harm to the environment. Coating is one of the most effective means of protection and the most widely used anti-corrosion technology. For powder coatings when used outdoors, polyester resin is one of the commonly used coating resins. It has excellent performance and is widely used in outdoor powder coatings, but its own anti-corrosion performance is not good and weather resistance also has certain defects. , unable to meet the higher needs of customers. [0003] Graphene has excellent electrical conductivity and anti-corrosion performance, ...

Claims

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Application Information

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IPC IPC(8): C09C1/46C09C3/10C09D167/06C09D5/08C09D7/62
CPCC01P2006/22C09C1/46C09C3/10C09D5/08C09D167/06C09D7/62C08K13/06C08K9/10C08K3/042
Inventor 潘建良卜庆朋
Owner JIANGSU HUAGUANG POWDER
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