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Multistage structure carbon material, preparation method thereof and anticorrosive paint

A technology of anti-corrosion coatings and carbon materials, applied in anti-corrosion coatings, electrophoretic coatings, coatings, etc., can solve problems such as inability to provide long-term protection, accelerated corrosion of metal substrates, and unsatisfactory anti-corrosion effects, and achieve strong bonding and prolonged anti-corrosion Performance, the effect of improving anti-corrosion performance

Active Publication Date: 2022-03-11
深圳贝特瑞钠电新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the two-dimensional sheet structure of graphene can improve the physical anti-corrosion properties of the coating; however, for pure barrier anti-corrosion coatings, once the corrosive medium penetrates into the coating metal interface or the coating is damaged, graphene will accelerate Corrosion of the metal substrate cannot achieve the purpose of long-term protection
On the other hand, for conductive zinc-rich anti-corrosion coatings, the conductivity of graphene is conducive to improving the effective utilization of zinc and cathodic protection performance; however, the dispersion of graphene and the barrier of zinc oxide make it practical The anti-corrosion effect is still not ideal
[0004]Based on this, it is necessary to find a new type of high-efficiency anti-corrosion material that can save energy and protect metals for a long time to solve the problem of graphene in barrier type and electrochemical protection. Protection Dilemmas in Two Types of Coatings

Method used

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  • Multistage structure carbon material, preparation method thereof and anticorrosive paint
  • Multistage structure carbon material, preparation method thereof and anticorrosive paint
  • Multistage structure carbon material, preparation method thereof and anticorrosive paint

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preparation example Construction

[0053] Based, the present invention provides a method of preparing a multi-stage structural carbon material, comprising the steps of:

[0054] Step (1), mix the saccharide organic matter, surfactant, and polar solvent, resulting in a first mixture, and the first mixture is soluble, and the flowering carbon material is obtained;

[0055] Specifically, in some embodiments, the sugar organic matter comprises at least one of glucose, fructose, sucrose, xylose, galactose, cyclodextrin, the concentration of sugar organics is 0.05 g / mL ~ 0.2 G / mL; the surfactant includes one or more of an alkyl trimethyl bromide, the alkyl group is one or more of the alkyl groups of 12 to 18, and the surfactant concentration is 0.5. Mg / mL ~ 5 mg / ml; the polar solvent comprises at least one of water, formamide, trifluoroacetic acid, DMSO, acetonitrile, DMF, and hexamethyl phosphoride.

[0056] In the step (1), the saccharide organic matter and the surfactant are hot at 120 ° C to 200 ° C for 6 h t...

Embodiment 1

[0073] (1) 4 g of glucose and 80 mg of hexamethyltrimethyla bromide were dissolved in 40 ml of deionized water, stirred well, then transferred to a hydrothermal kettle with a capacity of 50 ml of polytetrafluoroethylene liner, The heat reaction was at 160 ° C for 12 h, and after the reaction was completed and cooled to room temperature, the reaction liquid was centrifuged at 4000 r / min to 40 min, washed three times, and dried at 60 ° C for 2 h to obtain a flower carbon material;

[0074] (2) Put the flowered carbon material obtained in step (1) in the tube furnace, and calcined at 900 ° C for 1 h, 900 ° C, to obtain a flower-carbon material;

[0075] (3) 80 mg of naphthalenesulfonic acid was dissolved in 40 mL, 0.5 mol / L of sodium hydroxide solution, and then the flowered carbon material obtained in the 80 mg step (2) was added thereto, and the mixture was stirred and dispersed, and then the liquid transfer In the hydrothermal hem of the polytetrafluoroethylene liner having a ...

Embodiment 2

[0078] (1) 2 g of sucrose and 200 mg of dodecyl trimethyl bromide were dissolved in 40 ml of deionized water, stirred well, and then transferred to a hydrothermal kettle with a polytetrafluoroethylene liner having a capacity of 50 mL. The heat reaction was at 120 ° C for 24 h, and after the reaction was completed and cooled to room temperature, the reaction liquid was centrifuged at 3000 r / min splitter for 5 min, washed three times, and dried at 40 ° C for 3 h, resulting in a flower carbon material;

[0079](2) Place the flower carbon material obtained in step (1) is placed in a tube furnace, and 0.5 h is calcined at a high temperature at a nitrogen atmosphere, and a flowered carbon material is obtained.

[0080] (3) 20 mg of nitro-nitroxia was dissolved in 40 mL, 0.1 mol / L ammonia water, and then 40 mg of step (2) was added thereto, and the flowered carbon material obtained in step (2) was added, and the mixture was thoroughly stirred, and then the liquid transferred to a cap...

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Abstract

The invention discloses a multilevel structure carbon material, a photocathode anticorrosive coating added with the multilevel structure carbon material and a corresponding preparation method. Firstly, a three-dimensional flower-shaped conductive carbon material with high conductivity and high specific area is synthesized through a soft template and a high-temperature carbonization method, then zero-dimensional graphene quantum dots are synthesized in situ on a two-dimensional petal-shaped carbon plate through a hydrothermal method, and a multilevel structure carbon material is formed. And then preparing an anticorrosive coating by taking a photocathode anticorrosive coating added with the multilevel structure carbon material as a surface coating and taking a graphene / zinc powder coating as a prime coating. And a layer of photocathode is added for protection, so that the anti-corrosion performance of the coating is integrally improved. Photo-induced electrons generated by the photocathode coating can be migrated to the metal surface through graphene, the corrosion potential of metal is reduced to achieve the anti-corrosion effect, and due to the fact that a large number of electrons are generated under the driving of light, even if the coating is locally damaged, compared with the metal electron loss corrosion trend, the electron protection trend still has the advantage.

Description

Technical field [0001] The present invention relates to the field of anticorrosive coating, and more particularly to a multi-stage structural carbon material and a preparation method thereof, an optical cathode anticorrosive coating of the multi-stage structural carbon material and a preparation method thereof, and a preservative coating comprising the photocathode anti-corrosion coating. Background technique [0002] Metal anti-corrosion mainly includes physical anti-corrosion and chemical anti-corrosion. Among them, physical anti-corrosion refers to the preparation of a barrier layer in the surface of the metal, so that the metal is isolated and corrosion of the medium to achieve anti-corrosion; chemical anti-corrosion means that the electron is introduced into the metal surface to reduce the corrosion potential of the metal to be lowered. Protect. [0003] Glosene is used as two-dimensional sheet nanomaterials, which is currently used in two anti-corrosion coatings of barrier ...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D5/44C09D5/10C08K9/12C08K3/04
CPCC09D5/08C09D5/4492C09D5/106C08K9/12C08K3/042C08K2201/001C08K2201/005
Inventor 杜涛张艳叶佐伟唐婕林锦盛黄友元
Owner 深圳贝特瑞钠电新材料科技有限公司
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