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Self-detection anticorrosive paint with nano-carriers, preparation method of paint and application

A technology of nano-carriers and anti-corrosion coatings, which is applied in anti-corrosion coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., and can solve problems such as failure of organic coating protection functions

Inactive Publication Date: 2016-12-07
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after a long period of use, the organic coating on the metal surface will cause peeling between the substrate and the coating due to the corrosion of the protective substrate, which will lead to the failure of the protective function of the organic coating.

Method used

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  • Self-detection anticorrosive paint with nano-carriers, preparation method of paint and application
  • Self-detection anticorrosive paint with nano-carriers, preparation method of paint and application
  • Self-detection anticorrosive paint with nano-carriers, preparation method of paint and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation method and application of the self-detection anticorrosion coating containing nano-carriers of the present embodiment include the following steps:

[0035] Step 1, using the modified Hummer's method to prepare graphene oxide, and configuring it into a graphene oxide aqueous solution with a concentration of 2 mg / ml.

[0036] Step 2, mixing the graphene oxide aqueous solution and 1,10-phenanthroline at a mass ratio of 2:1 to obtain a first mixed solution.

[0037] Step 3, ultrasonically dispersing the first mixed solution in an ultrasonic instrument with an ultrasonic power of 300 W for 10 minutes to obtain a second mixed solution.

[0038] Step 4: Remove the unreacted solution in the second mixed solution by suction filtration to obtain a solid substance, and add water to the solid substance to form a third mixed solution of 2 mg / ml.

[0039] Step 5, mixing the third mixed solution with water-based polyurethane resin to obtain an anti-corrosion coating, ...

Embodiment 2

[0043] The preparation method and application of the self-detection anticorrosion coating containing nano-carriers of the present embodiment include the following steps:

[0044] Step 1, using the modified Hummer's method to prepare graphene oxide, and configuring it into a graphene oxide aqueous solution with a concentration of 2 mg / ml.

[0045] Step 2, mixing the graphene oxide aqueous solution with 1,10-phenanthroline pentaamino in a mass ratio of 2:1 to obtain a first mixed solution.

[0046] Step 3, ultrasonically dispersing the first mixed solution in an ultrasonic instrument with an ultrasonic power of 300 W for 10 minutes to obtain a second mixed solution.

[0047] Step 4: Remove the unreacted solution in the second mixed solution by suction filtration to obtain a solid substance, and add water to the solid substance to form a third mixed solution of 2 mg / ml.

[0048] Step 5, mixing the third mixed solution with water-based polyurethane resin to obtain an anti-corrosi...

Embodiment 3

[0052] The preparation method and application of the self-detection anticorrosion coating containing nano-carriers of the present embodiment include the following steps:

[0053] Step 1, use the improved Hummer's method to prepare graphene oxide, and configure it into a graphene oxide aqueous solution with a concentration of 2 mg / ml, and then add hydrazine hydrate not exceeding 0.3 times the mass of graphene to obtain graphene oxide after partial reduction graphene aqueous solution.

[0054] Step 2, mixing the partially reduced graphene aqueous solution with 1,10-phenanthroline at a mass ratio of 2:1 to obtain a first mixed solution.

[0055] Step 3, ultrasonically dispersing the first mixed solution in an ultrasonic instrument with an ultrasonic power of 300 W for 10 minutes to obtain a second mixed solution.

[0056] Step 4: Remove the unreacted solution in the second mixed solution by suction filtration to obtain a solid substance, and add water to the solid substance to for...

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Abstract

The invention provides self-detection anticorrosive paint with nano-carriers, a preparation method of the paint and an application. The self-detection anticorrosive paint comprises a self-detection color material, the nano-carriers and a film-forming substrate. The method for preparing the self-detection anticorrosive paint with the nano-carriers includes the steps: firstly, preparing the nano-carriers, and configuring the nano-carriers into nano-carrier water solution with a certain proportional concentration; secondly, mixing the nano-carrier water solution and the self-detection color material in proportion to obtain first mixed liquid; thirdly, performing ultrasonic dispersion for the first mixed liquid to obtain second mixed liquid; fourthly, drawing, filtering and removing unreacted solution in the second mixed liquid to obtain a solid matter, and adding water into the solid matter to form third mixed liquid with a certain proportion by matching; fifthly, mixing the third mixed liquid and the film-forming substrate to obtain the anticorrosive paint. The self-detection anticorrosive paint is environmentally friendly and has the functions of automatic detection, early warning and corrosion prevention.

Description

technical field [0001] The invention relates to an anti-corrosion coating and a preparation method thereof, belonging to the field of chemical industry. Background technique [0002] Organic coating is currently the most commonly used metal surface anti-corrosion method in production. However, after a long period of use, the organic coating on the metal surface will cause peeling between the substrate and the coating due to the corrosion of the protective substrate, which will lead to the failure of the protective function of the organic coating. When the corrosion products visible to the naked eye are produced during the corrosion process of the metal surface, the corrosion degree is already very serious, so if there is a coating that can perform self-detection and can warn in the early stage of corrosion, applying it to the metal surface will greatly improve the corrosion resistance. Improve the anti-corrosion effect of metal. Contents of the invention [0003] The pre...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/00C09D163/00C09D5/08C09D7/12G01N21/78
CPCC08K3/04C08K5/3437C08K9/12C08K2201/011C09D5/08C09D7/61C09D7/63C09D7/70C09D133/00C09D163/00C09D175/04G01N21/78C08K3/042
Inventor 李静姜志远崔锦灿冯庆康袁茜杨俊和
Owner UNIV OF SHANGHAI FOR SCI & TECH
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