Anticorrosive paint as well as preparation method and application thereof

A technology of anti-corrosion coatings and anti-rust pigments, applied in the field of coatings, can solve problems such as short service life, poor salt spray resistance, and poor environmental adaptability

Inactive Publication Date: 2021-04-20
ZHUHAI FUDAN INNOVATION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among many corrosion control technologies, coatings are the primary means of corrosion protection, but the existing protective coatings fo

Method used

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  • Anticorrosive paint as well as preparation method and application thereof
  • Anticorrosive paint as well as preparation method and application thereof
  • Anticorrosive paint as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of anticorrosion coating, comprises following component A and component B,

[0041] Wherein, component A raw material weight composition is as follows:

[0042]

[0043] Wherein, the graphene slurry is prepared according to the following process: first, 15 g of pyrrole and 120 g of ferric chloride are dissolved in 800 ml of water, and then the solution is reacted at 90° C. for 24 h to generate a carbon-containing polymer (polypyrrole), and then The reacted solution was cooled with liquid nitrogen and dried in a lyophilizer; then the dried powder was placed in a tube furnace and heated to 900°C for 1 hour in a nitrogen atmosphere at a heating rate of 5°C / min. After natural cooling, take out the solid powder; then disperse the powder in dilute sulfuric acid at 60°C and stir to remove iron particles, then filter and freeze-dry to obtain graphene. Finally, add xylene and n-butanol in sequence in the container and stir evenly, then add graphene while stirring, the...

Embodiment 2

[0054] A kind of anticorrosion coating, comprises following component A and component B,

[0055] Wherein, component A raw material weight composition is as follows:

[0056]

[0057]

[0058] Wherein, the graphene slurry is prepared according to the following process: first, 15 g of pyrrole and 120 g of ferric chloride are dissolved in 800 ml of water, and then the solution is reacted at 90° C. for 24 h to generate a carbon-containing polymer (polypyrrole), and then The reacted solution was cooled with liquid nitrogen and dried in a lyophilizer; then the dried powder was placed in a tube furnace and heated to 900°C for 1 hour in a nitrogen atmosphere at a heating rate of 5°C / min. After natural cooling, take out the solid powder; then disperse the powder in dilute sulfuric acid at 60°C and stir to remove iron particles, then filter and freeze-dry to obtain graphene. Finally, add xylene and n-butanol in sequence in the container and stir evenly, then add graphene while s...

Embodiment 3

[0069] A kind of anticorrosion coating, comprises following component A and component B,

[0070] Wherein, component A raw material weight composition is as follows:

[0071]

[0072]

[0073] Wherein, the graphene slurry is prepared according to the following process: first, 15 g of pyrrole and 120 g of ferric chloride are dissolved in 800 ml of water, and then the solution is reacted at 90° C. for 24 h to generate a carbon-containing polymer (polypyrrole), and then The reacted solution was cooled with liquid nitrogen and dried in a lyophilizer; then the dried powder was placed in a tube furnace and heated to 900°C for 1 hour in a nitrogen atmosphere at a heating rate of 5°C / min. After natural cooling, take out the solid powder; then disperse the powder in dilute sulfuric acid at 60°C and stir to remove iron particles, then filter and freeze-dry to obtain graphene. Finally, add xylene and n-butanol in sequence in the container and stir evenly, then add graphene while s...

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Abstract

The invention belongs to the technical field of coatings, and discloses an anticorrosive paint as well as a preparation method and an application thereof. The anticorrosive paint comprises a component A and a component B. The component A comprises epoxy resin, zinc powder, an antirust pigment, graphene slurry, a filler and an assistant. The component B comprises modified polyamide and a diluent. By means of a cathode protection mechanism of zinc powder, the surface of the steel is prevented from being corroded; meanwhile, graphene is added into the paint, so that the permeation rate of a corrosive medium is reduced, and the corrosion resistance of the coating is improved; the graphene and the zinc powder are in lap joint to form a conductive path, the utilization rate of the zinc powder is increased, the use amount of the zinc powder can be greatly reduced, the film-forming property of the coating, the flexibility and adhesive force of the coating are improved, the salt spray resistance effect of the coating is enhanced, the corrosion resistance time of marine equipment can be prolonged when the coating is applied to the marine equipment, and the maintenance period and cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an anti-corrosion coating and its preparation method and application. Background technique [0002] Corrosion refers to the loss and destruction of materials under the chemical, electrochemical and physical effects of the surrounding environment. It is an inevitable and random damage behavior of materials. Corrosion will occur in materials in basically any environment. However, because the ocean is the largest and most severe corrosive environment on the earth, climate conditions such as large temperature difference, high humidity, and high salt spray greatly accelerate the process of material aging and corrosion, and seawater, sediment, oil and gas, and marine organisms are also affected. It is a corrosive medium of all kinds. Therefore, marine equipment has been in such a harsh environment for a long time, and its corrosion is particularly serious. [0003] Among...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/61C08G59/62C01B32/184
Inventor 王帅易征然丁玉洁袁瑞马黎奚江波
Owner ZHUHAI FUDAN INNOVATION INST
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