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Water-based graphene static conductive anticorrosive paint and preparation method thereof

A technology of water-based graphene and anti-corrosion coatings, applied in anti-corrosion coatings, conductive coatings, graphene, etc., can solve the problems of excellent electrical conductivity, decreased coating anti-corrosion protection performance, high VOC content, etc., and achieve excellent electrostatic conductivity and excellent adhesion performance effect

Inactive Publication Date: 2021-03-19
QINGDAO AIR NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, nanomaterials have been applied to conductive coatings in the market. Graphene is used as a filler, and acrylic acid and epoxy are used as matrix materials. Most of the existing conductive coatings have excellent electrical conductivity but affected anti-corrosion properties.
On the one hand, the conductivity of the existing coating will lead to a decline in the anti-corrosion protection performance of the coating, reducing the service life of the product, resulting in a waste of protective substrates, and accidents will occur in severe cases. On the other hand, most of the existing conductive coatings are oily, and the VOC content high, not environmentally friendly

Method used

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  • Water-based graphene static conductive anticorrosive paint and preparation method thereof
  • Water-based graphene static conductive anticorrosive paint and preparation method thereof

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preparation example Construction

[0066] The preparation process of described graphene powder is as follows:

[0067] Add 80 parts of iron balls, 20 parts of dry ice, and 100 parts of 300-mesh graphite powder into a 5L tube tank. The process adopts a decompression operation with a speed of 1200r / min. After grinding for 48 hours, cool it for 8 hours and take it out to obtain product 1; in the reaction kettle Add dilute hydrochloric acid, add product 1, remove iron, freeze-dry and set aside to obtain graphene powder, the above raw materials are by weight;

[0068] The B component is composed of the following raw materials: 30 parts of epoxy curing agent, 3 parts of deionized water, 2 parts of film-forming aids, the above raw materials are calculated in parts by weight;

[0069] When in use, the A component and the B component are mixed evenly according to the mass ratio of 10:1-2, and then add 5% deionized water of the total mass of the A component and the B component, and use the Construction by spin coating. ...

Embodiment 1

[0085] A water-based graphene conductive anti-static coating for oil storage tanks, the preparation process is as follows:

[0086] (1) Preparation of component A

[0087] (1) The preparation of graphene powder: by weight, in 5L tube tank, add 80 parts of iron balls, 20 parts of dry ice, 100 parts of 300 mesh graphite powders, the process adopts decompression operation, and the rotating speed is 1200r / min, Grinding for 48 hours, cooling for 8 hours, taking out the product 1; adding dilute hydrochloric acid to the reaction kettle, adding the product 1, removing iron, and freeze-drying for later use to obtain graphene powder;

[0088] (2) Preparation of graphene slurry: in parts by weight, add 20.6 parts of deionized water, 16 parts of dispersant, 0.3 part of organosilicon defoamer, 0.1 part of thickener in the grinding tank, at a speed of 700r / min Disperse for 15 minutes, then add 1 part of coloring pigment and 17 parts of anti-rust material sequentially while stirring, and th...

Embodiment 2

[0096] (1) The preparation of graphene powder: by weight, in 5L tube tank, add 80 parts of iron balls, 20 parts of dry ice, 100 parts of 300 mesh graphite powders, the process adopts decompression operation, and the rotating speed is 1200r / min, Grinding for 48 hours, cooling for 8 hours, taking out the product 1; adding dilute hydrochloric acid to the reaction kettle, adding the product 1, removing iron, and freeze-drying for later use to obtain graphene powder;

[0097] (2) Preparation of graphene slurry: in parts by weight, add 17 parts of deionized water, 20 parts of dispersant, 0.3 part of organosilicon defoamer, 0.1 part of thickener in the grinding tank, at a speed of 700r / min Disperse for 15 minutes, then add 1 part of coloring pigment and 15 parts of anti-rust material sequentially while stirring, and then add 4 parts of graphene powder, 17 parts of mica powder, and 25.6 parts of titanium dioxide and mix evenly to obtain graphene slurry;

[0098] (3) Preparation of gra...

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Abstract

The invention provides a water-based graphene static conductive anticorrosive paint, which belongs to the technical field of water-based paints, and is composed of a component A and a component B. Thecomponent A comprises epoxy resin, graphene filler slurry, a coalescing agent, a wetting agent, a thickening agent, distilled water, an anti-flash-rust agent and a silane coupling agent. The graphenefiller slurry comprises graphene slurry and zirconium beads; wherein the graphene slurry comprises deionized water, a dispersing agent, an organic silicon defoaming agent, a thickening agent, a coloring pigment, an antirust material, graphene powder, mica powder and titanium dioxide; the component B comprises an epoxy curing agent, deionized water and a coalescing agent. When in use, the mass ratio of the component A to the component B is 10:1-2. The invention also provides a preparation method of the water-based graphene static conductive anticorrosive paint. According to the coating disclosed by the invention, the graphene is used as a conductive filler, so that the coating has stable static electricity conduction performance through modification without influencing the corrosion resistance, and the coating has excellent heat resistance, acid and alkali resistance and excellent adhesion performance.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, more specifically, the invention relates to a water-based graphene conductive static anti-corrosion coating and a preparation method thereof. Background technique [0002] Static conductive anti-corrosion coating is a functional coating that not only has excellent heat resistance, acid and alkali resistance, and strong adhesion, but also has conductivity. This coating can be used to eliminate static charges in the matrix and conduct current. It can be used in Applications in electronics, construction, aerospace, petrochemical and other fields. Doped conductive coating is one of them, which is prepared by compounding conductive filler and non-conductive matrix material. [0003] At present, nanomaterials have been applied to conductive coatings in the market. Graphene is used as a filler, and acrylic acid and epoxy are used as matrix materials. Most of the existing conductive coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D5/24C09D7/80C01B32/184C01B32/194
CPCC08L2201/04C08L2201/08C09D5/08C09D5/24C09D163/00C01B32/184C01B32/194C09D7/80C08K3/042
Inventor 王宝柱杜建强胡庆丽相少鹏张天华
Owner QINGDAO AIR NEW MATERIALS
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