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Superhydrophilic anticorrosion coating sol and preparation method and application thereof

An anti-corrosion coating and super-hydrophilic technology, applied in the direction of anti-corrosion coatings, coatings, fire-resistant coatings, etc., to achieve the effects of promoting application and development, simple preparation process, and high mechanical strength

Inactive Publication Date: 2018-08-24
泉州三欣新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, from the existing patents and literature, there are rarely related reports

Method used

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  • Superhydrophilic anticorrosion coating sol and preparation method and application thereof
  • Superhydrophilic anticorrosion coating sol and preparation method and application thereof
  • Superhydrophilic anticorrosion coating sol and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0043] (1) Preparation of graphene solution

[0044] Mix 10g graphene material (graphene, size 100~1000nm, layer number 1~5 layers), 0.01g hexamethyldisilazane, 1000g solvent, and disperse evenly under ultrasonic conditions to obtain graphene solution;

[0045] (2) Preparation of superhydrophilic anti-corrosion coating sol

[0046] Mix the graphene solution obtained in step (1) with 1000 g of an inorganic polysilazane solution with a solid content of 5% and a solvent, stir in a sealed state at 35°C for 10 hours, and store in a sealed state to obtain a superhydrophilic solution with a solid content of 1.5%. Anti-corrosion coating sol. The inorganic polysilazane solution used comprises inorganic polysilazane, solvent and catalyst 4,4'-trimethylenebis(1-methylpiperidine), wherein the mass ratio of inorganic polysilazane and catalyst is 10 :0.01.

[0047] Apply the super-hydrophilic anti-corrosion coating sol film on the substrate, and cure it at 100°C for 1 hour to obtain the ...

Embodiment 2

[0049] (1) Preparation of graphene solution

[0050] Mix 10g of graphene material (graphene, size 0.1~50nm, layer number 1~100 layers), 1g hexamethyldisilazane, 5000g solvent, and disperse evenly under ultrasonic conditions to obtain graphene solution;

[0051] (2) Preparation of superhydrophilic anti-corrosion coating sol

[0052]Mix the graphene solution obtained in step (1) with 10,000 g of an inorganic polysilazane solution with a solid content of 10% and a solvent, stir in a sealed state at 15°C for 30 hours, and store in a sealed state to obtain a superhydrophilic solution with a solid content of 5%. Anti-corrosion coating sol. The inorganic polysilazane solution used contains inorganic polysilazane, n-butyl ether, xylene and catalyst 4,4'-trimethylenebis(1-methylpiperidine), wherein the inorganic polysilazane and catalyst The mass ratio is 10:0.05.

[0053] Apply the super-hydrophilic anti-corrosion coating sol film on the substrate, and cure it at 30°C for 24 hours ...

Embodiment 3

[0055] (1) Preparation of graphene solution

[0056] Mix 10g graphene material (graphene, size 500~50000nm, layer number 1~9 layers), 0.5g hexamethyldisiloxane, 10000g solvent, and disperse evenly under ultrasonic conditions to obtain graphene solution;

[0057] (2) Preparation of superhydrophilic anti-corrosion coating sol

[0058] Mix the graphene solution obtained in step (1) with 10,000 g of an inorganic polysilazane solution with a solid content of 2% and a solvent, stir in a sealed container at 15°C for 30 hours, and store in a sealed container to obtain a superhydrophilic solution with a solid content of 1%. Anti-corrosion coating sol. The used inorganic polysilazane solution comprises inorganic polysilazane, solvent and catalyst 1-methylpiperidine, wherein the mass ratio of inorganic polysilazane and catalyst is 10:0.001.

[0059] Apply the super-hydrophilic anti-corrosion coating sol film on the substrate, and cure it at 120°C for 14 hours to obtain the super-hydrop...

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Abstract

The invention discloses superhydrophilic anticorrosion coating sol, made by combining inorganic polysilazane and graphene, and a preparation method and application thereof. Graphene and inorganic polysilazane are combined to obtain coating sol having self-curing property and strong adhesion; and a coating prepared has good corrosion resistance and stable superhydrophilicity, as well as the characteristics, such as heat conductivity, high mechanical strength, and flame retardancy. The preparation method is simple, low in cost and green, the operating conditions are easy to control, the problemsare effectively solved that existing coatings have poor corrosion resistance and the preparation techniques are complex, and the application and development of superhydrophilic anticorrosion technology are benefited.

Description

technical field [0001] The invention relates to a super-hydrophilic coating sol and its preparation method and application, in particular to a super-hydrophilic coating sol compounded by inorganic polysilazane and graphene, its preparation method and application. Background technique [0002] Worldwide, the consumption caused by metal corrosion accounts for 2-3% of the entire industrial product production, and the direct economic loss caused by it reaches 700 billion U.S. dollars every year. In order to solve the above-mentioned problems, people have been devoting themselves to exploring the effective anti-corrosion of metal materials, and many achievements and effective methods have been obtained so far. Common metal corrosion protection methods currently include metal anodic protection, metal cathodic protection, and non-metallic coating protection on metal surfaces. Coating anti-corrosion coating on the metal surface is one of the commonly used methods for metal anti-cor...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D7/62C09D5/08C09D5/16C09D5/18
Inventor 彭新艳刘云鸿刘云晖
Owner 泉州三欣新材料科技有限公司
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