Anti-corrosion system, preparation method and application thereof and anti-corrosion coating

An anti-corrosion coating and anti-corrosion technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of passive barriers, achieve the effects of slowing down penetration, simple preparation process, and low cost

Inactive Publication Date: 2020-09-18
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that the existing anti-corrosion coatings can only passively block corrosive substances, the present invention provides a new anti-corrosion system with the function of actively regulating the transmission of corrosive ions, and further provides the anti-corrosion system preparation method

Method used

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  • Anti-corrosion system, preparation method and application thereof and anti-corrosion coating
  • Anti-corrosion system, preparation method and application thereof and anti-corrosion coating
  • Anti-corrosion system, preparation method and application thereof and anti-corrosion coating

Examples

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preparation example Construction

[0074] Among them, the preparation method of the fluorine-containing piezoelectric resin coating specifically includes: dissolving the fluorine-containing piezoelectric resin in a solvent, and mixing to obtain a fluorine-containing piezoelectric resin precursor solution; and then coating the fluorine-containing piezoelectric resin precursor solution On the surface of the protected substrate, a fluorine-containing piezoelectric resin coating is formed after drying. (The fluorine-containing piezoelectric resin precursor solution here can be regarded as the aforementioned anti-corrosion coating)

[0075] Wherein, the drying may be carried out at room temperature, or may be carried out in a blast drying oven at a temperature of 25-60° C., and the drying time is 2-24 hours for removing the solvent.

[0076] Among them, solvents include but not limited to dichloromethane, chloroform, n-hexane, butyrolactone, diethyl ether, ethyl acetate, tetrahydrofuran, dimethyl sulfoxide, N,N-dime...

Embodiment 1

[0098] Calculated by mass, 10 parts of polyvinylidene fluoride piezoelectric resin was weighed, and then 90 parts of dimethyl sulfoxide solvent was added, and stirred for 2 hours under heating at 60° C. until uniformly mixed. Then stop heating, add 0.5 parts of silica nucleating agent, and continue stirring for 1 h to obtain A precursor solution.

[0099] Take the Q235 carbon steel substrate, and firstly polish it step by step with 200 mesh, 400 mesh, 800 mesh, 1000 mesh, and 1500 mesh sandpaper, then perform ultrasonic cleaning in ethanol and acetone for 30 minutes, and blow dry the surface of the substrate with nitrogen.

[0100] The prepared A precursor solution was evenly coated on the metal surface by brushing, and then placed in a blast drying oven at 50°C for 2 hours to remove the solvent, and the A coating was formed, and the measured film thickness was 7.01 μm.

[0101] Calculated by mass, weigh 50 parts of bisphenol A diglycidyl ether, 20 parts of polyetheramine D230...

Embodiment 2

[0106] The anticorrosion system and preparation method thereof of the present embodiment are the same as those of Example 1, but the simulated test method is different, and the difference is that the sample is fixed in a container full of 3.5wt% sodium chloride aqueous solution, and the container is placed in a reciprocating Repeated vibrations on a type oscillator to simulate pressure effects such as waves beating on metal substrates in a real ocean environment.

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Abstract

The invention discloses an anti-corrosion system, a preparation method and application thereof and an anti-corrosion coating. The anti-corrosion system comprises a first functional layer wrapping a protected matrix; the first functional layer comprises a fluorine-containing piezoelectric material, and the first functional layer can generate dynamic response current under a stress condition so as to prevent corrosive ions from being transmitted to the protected matrix. The transmission process of corrosive ions in the anti-corrosion system can be actively regulated and controlled by the provided anti-corrosion system, and the permeation effect of the corrosive ions in the anti-corrosion system is remarkably relieved. The invention further provides a preparation method of the anti-corrosionsystem and application of the anti-corrosion system in a corrosive environment. Meanwhile, the invention further provides an anti-corrosion coating, after the coating is dried to form a coating layer,dynamic response current can be generated under the stress condition so as to prevent corrosive ions from being transmitted to the protected matrix, and the permeation effect of the corrosive ions inthe coating layer is remarkably relieved.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion materials, in particular to an anti-corrosion system, a preparation method and application thereof, and an anti-corrosion coating. Background technique [0002] Metal engineering equipment such as ships and oil production platforms used in the marine environment for a long time will face severe corrosion problems, because there are a large number of corrosive substances in the marine environment. Metal corrosion is a worldwide problem. According to relevant survey reports, the world’s average annual direct and indirect losses caused by corrosion can reach billions of dollars, accounting for 3.4% of the global gross national product, and the loss of marine corrosion accounts for about 10% of the total. one-third of the loss. In recent years, the annual loss caused by marine corrosion in my country has even exceeded the sum of natural disaster losses in that year. Therefore, the corrosion p...

Claims

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Application Information

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IPC IPC(8): C09D127/16C09D7/61C09D5/08C09D163/00C23F15/00B05D5/00B05D7/24B05D1/38
CPCC09D127/16C09D7/61C09D5/08C09D163/00C23F15/00B05D5/00B05D7/24B05D7/546B05D7/544C08K2201/011C08K3/36C08K3/042C08K3/041
Inventor 王彬黄俊贤
Owner SHENZHEN INST OF ADVANCED TECH
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