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Epoxy graphene heavy corrosion-resistant coating, and preparation method and application thereof

A graphene, heavy-duty anti-corrosion technology, applied in anti-corrosion coatings, epoxy resin coatings, conductive coatings, etc., can solve the problem of further improvement of anti-corrosion performance, and achieve ultra-long-term anti-corrosion effect, thin coating, and enhanced anti-corrosion performance. Effect

Inactive Publication Date: 2018-02-27
SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing heavy-duty anti-corrosion coatings generally only have one of the anti-corrosion functions, and the anti-corrosion performance needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Weigh the conductive and thermally conductive graphene powder (model: SE1231) produced by Changzhou Sixth Element Materials Technology Co., Ltd. (D50 is 9 μm), add dispersant and solvent, mix well and then grind, and then grind Ultrasonic dispersion to obtain a graphene dispersion;

[0054] (2) Add bisphenol A epoxy resin E51, pigments and fillers, coating additives to the graphene dispersion, stir and grind, and obtain component A after grinding;

[0055] Among them, the solvent is 200# solvent oil, the pigments and fillers are mica powder, titanium dioxide, talcum powder, barium sulfate, the dispersant is silane coupling agent KH550, the coating additives are defoamer Deqian 6800, leveling agent Deqian 8629, The thixotropic agent is organic bentonite.

[0056] Wherein the weight percent of each substance in the A component is: the content of graphene is 0.5%, bisphenol A type epoxy resin E51 50%, mica powder 10%, titanium dioxide 8%, talcum powder 10%, barium sul...

Embodiment 2

[0063] (1) Weigh the conductive and thermally conductive graphene powder (Model: SE1231) produced by Changzhou Sixth Element Materials Technology Co., Ltd. (D50 is 8μm), add dispersant and solvent, stir well and then grind, and then grind Ultrasonic dispersion to obtain a graphene dispersion;

[0064] (2) Add bisphenol A type epoxy resin E44, pigments and fillers, coating additives to the graphene dispersion liquid again, stir, grind, obtain component A after grinding;

[0065] Among them, the solvent is xylene, the pigment and filler are mica powder, titanium dioxide, talc powder, barium sulfate, the dispersant is silane coupling agent KH550, the coating additives are defoamer Deqian 6800, leveling agent Deqian 8629, thixotropic The agent is organic bentonite.

[0066] Wherein the weight percentage of each substance of component A is: the content of graphene is 1%, bisphenol A type epoxy resin E4435%, mica powder 15%, titanium dioxide 10%, talcum powder 15%, barium sulfate 1...

Embodiment 3

[0073] (1) Weigh the conductive and thermally conductive graphene powder (Model: SE1231) produced by Changzhou Sixth Element Materials Technology Co., Ltd. (D50 is 7μm), add dispersant and solvent, stir well and then grind, and then grind Ultrasonic dispersion to obtain a graphene dispersion;

[0074] (2) Add epoxy resin solution, pigments and fillers, coating additives to the graphene dispersion, stir and grind, and obtain component A after grinding;

[0075] The solvent is xylene and n-butanol, the epoxy resin liquid is epoxy resin E20 soluble in solvent, the pigment and filler are mica powder, iron red, talcum powder, barium sulfate, the dispersant is titanate coupling agent, and the coating The additives are defoamer Deqian 6800, leveling agent Deqian 8629, and thixotropic agent is organic bentonite.

[0076] Wherein the weight percent content of each substance of component A is: the content of graphene is 1%, epoxy resin 30%, mica powder 10%, iron red 8%, talcum powder 1...

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Abstract

The invention relates to the field of corrosion-resistant coating, in particular to epoxy graphene heavy corrosion-resistant coating and a preparation method thereof. The epoxy graphene heavy corrosion-resistant coating mainly comprises the following components in percentage by weight: 0.1 to 5 percent of a graphene material, 30 to 60 percent of epoxy resin, 30 to 50 percent of a pigment filler, 0.1 to 10 percent of a dispersing agent, 0.1 to 5 percent of a coating aid and 8 to 30 percent of a solvent. The components of the coating provided by the invention have synergistic effect, grinding, ultrasonic dispersion and grinding are conducted step by step, the graphene powder is added step by step, the graphene is dispersed uniformly, excellent barrier property and excellent electric conductivity of a nano-sheet layer structure of the graphene on the chemical products are exerted completely, and the corrosion resistance of the epoxy resin heavy corrosion-resistant coating is improved andenhanced, so that the super long-lasting corrosion-resistant effect is achieved and the coating of the prepared coating is thin. The preparation method provided by the invention is simple and practical, and the prepared coating has excellent performance.

Description

technical field [0001] The invention relates to the field of anti-corrosion coatings, in particular to a graphene epoxy heavy-duty anti-corrosion coating and its preparation method and application. Background technique [0002] There are two main anticorrosion mechanisms of existing heavy-duty coatings: (1) physical anticorrosion-barrier shielding effect. The anti-corrosion effect is achieved through shielding. The coating film of this anti-corrosion coating prevents the corrosive medium from contacting the surface of the object to be coated, thereby achieving anti-corrosion effect. It blocks the path of the corrosion battery and increases the resistance, which can shield water, oxygen and ions. The circulation of corrosion factors. For example, epoxy glass flake anti-corrosion coating is this kind of shielding industrial anti-corrosion coating. It utilizes the "labyrinth effect" produced by the flaky structure of the filler, thereby delaying the way and time for the corro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/24C09D5/08
CPCC09D163/00C08K3/04C08K9/02C08K9/04C08K13/02C08K13/06C08K2201/014C09D5/08C09D5/24
Inventor 张金柱张娟娟张安刘顶
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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