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Method for forming organic-inorganic hybrid super-hydrophobic anticorrosive coating on surface of carbon steel

An anti-corrosion coating and super-hydrophobic technology, applied in the field of forming organic-inorganic hybrid super-hydrophobic anti-corrosion coating on the surface of carbon steel, super-hydrophobic anti-corrosion coating, can solve problems such as easy corrosion, improve corrosion resistance, reduce Effects of erosion and excellent corrosion resistance

Active Publication Date: 2022-02-25
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for forming an organic-inorganic hybrid super-hydrophobic anti-corrosion coating on the surface of carbon steel. Improve the corrosion resistance of the coating while solving the problem

Method used

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  • Method for forming organic-inorganic hybrid super-hydrophobic anticorrosive coating on surface of carbon steel
  • Method for forming organic-inorganic hybrid super-hydrophobic anticorrosive coating on surface of carbon steel
  • Method for forming organic-inorganic hybrid super-hydrophobic anticorrosive coating on surface of carbon steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Add 5g of mesoporous molecular sieve MCM-41 with an average pore diameter of 4nm to 250mL of toluene solution containing 5g of silane coupling agent KH550, heat to 60°C, and after magnetic stirring for 3 hours, suction filter, wash and dry to obtain modified mesoporous Molecular sieve.

[0046]Dissolve 3g of a triazine-based corrosion inhibitor with the following structure in 100mL of ethyl acetate, add the above-mentioned modified mesoporous molecular sieve, immerse in vacuum for 4h, filter with suction, wash, and dry to obtain the loaded corrosion inhibitor mesoporous molecular sieve .

[0047]

[0048] Weigh 10g epoxy resin, dissolve it in 50mL ethyl acetate, add 0.1g loaded corrosion inhibitor mesoporous molecular sieve, 1g amino silicone oil, 0.1g sodium lauryl sulfate and 0.1g polyethylene glycol 600, first Disperse at a speed of 6000r / min for 20 minutes under the disperser, and then ultrasonically disperse for 20 minutes. After the dispersion is complete, 1 ...

Embodiment 2

[0053] Add 5g of mesoporous molecular sieve MCM-41 with an average pore diameter of 4nm to 250mL of toluene solution containing 7.5g of silane coupling agent KH550, heat to 70°C, and after magnetic stirring for 4 hours, suction filter, wash and dry to obtain the modified medium Molecular sieve.

[0054] Dissolve 3.5g of a triazine-based corrosion inhibitor with the following structure in 100mL of ethyl acetate, add the above-mentioned modified mesoporous molecular sieve, immerse in vacuum for 5h, filter with suction, wash, and dry to obtain the loaded corrosion inhibitor mesoporous Molecular sieve.

[0055]

[0056] Weigh 10g epoxy resin, dissolve it in 50mL ethyl acetate, add 0.15g loaded corrosion inhibitor mesoporous molecular sieve, 1.5g amino silicone oil, 0.15g sodium lauryl sulfate and 0.15g polyethylene glycol 600, first in Disperse at a speed of 7000r / min for 20 minutes in a high-speed disperser, and then disperse ultrasonically for 30 minutes. After the dispersi...

Embodiment 3

[0060] Add 5g of mesoporous molecular sieve MCM-41 with an average pore diameter of 4nm to 250mL of toluene solution containing 10g of silane coupling agent KH550, heat to 80°C, and after magnetic stirring for 5h, suction filter, wash and dry to obtain modified mesoporous Molecular sieve.

[0061] Dissolve 4g of a triazine-based corrosion inhibitor with the following structure in 100mL of ethyl acetate, add the above-mentioned modified mesoporous molecular sieve, immerse in vacuum for 6h, filter with suction, wash, and dry to obtain a loaded corrosion inhibitor mesoporous molecular sieve .

[0062]

[0063] Weigh 10g epoxy resin, dissolve it in 50mL ethyl acetate, add 0.2g loaded corrosion inhibitor mesoporous molecular sieve, 2g amino silicone oil, 0.2g sodium lauryl sulfate and 0.2g polyethylene glycol 600, first Disperse for 20 minutes at a speed of 8000 r / min in a disperser, and then ultrasonically disperse for 40 minutes. After the dispersion is complete, 1 g of ethy...

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Abstract

The invention relates to a method for forming an organic-inorganic hybrid super-hydrophobic anticorrosive coating on the surface of carbon steel, which comprises the following steps of: blade-coating a film coating liquid on the surface of the carbon steel, placing the carbon steel in a super-hydrophobic nano SiO2 dispersion liquid for dipping treatment when the film coating liquid reaches a semi-cured state, taking out the carbon steel, heating and curing, and forming the organic-inorganic hybrid super-hydrophobic anticorrosive coatingon the surface of the carbon steel. Wherein the coating liquid is obtained by adding a corrosion inhibitor-loaded modified mesoporous molecular sieve, amino silicon oil, a dispersing agent and a curing agent into an epoxy resin ethyl acetate solution and uniformly dispersing, and the corrosion inhibitor-loaded modified mesoporous molecular sieve is obtained by modifying a mesoporous molecular sieve by using a silane coupling agent and loading a triazinyl corrosion inhibitor. According to the prepared anti-corrosion coating, the problem that the surface of carbon steel is prone to corrosion is solved, and meanwhile the corrosion resistance of the coating is improved.

Description

technical field [0001] The invention belongs to the technical field of metal protective materials, relates to a super-hydrophobic anti-corrosion coating, in particular to a method for forming an organic-inorganic hybrid super-hydrophobic anti-corrosion coating on the surface of carbon steel. Background technique [0002] Carbon steel, as the most widely used steel, is widely used in construction, machinery, engineering, transportation and other fields, but it is easily affected by the surrounding environment, reacts and causes corrosion, and affects the operation of various equipment and components. Therefore, it is of great significance to protect it from corrosion. [0003] As the most direct and effective means of metal corrosion protection, coating is one of the most widely used methods in the protection of modern industrial materials. Among them, epoxy resin is currently the most widely used anti-corrosion coating due to its good corrosion resistance, chemical resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D183/08C09D5/08C09D7/62C09D1/00B05D7/14
CPCC09D163/00C09D5/08C09D7/62C09D1/00B05D7/14C08L83/08C08K9/12C08K5/3492C08K9/06C08K7/26
Inventor 朱海林陆小猛原梦颖王德华王正洁马雪梅冯丽胡志勇
Owner ZHONGBEI UNIV
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