A method of forming an organic-inorganic hybrid superhydrophobic anti-corrosion coating on the surface of carbon steel

A kind of anti-corrosion coating and super-hydrophobic technology, which can be used in devices that coat liquid on the surface, anti-corrosion coatings, coatings, etc. Effect

Active Publication Date: 2022-06-07
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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  • A method of forming an organic-inorganic hybrid superhydrophobic anti-corrosion coating on the surface of carbon steel
  • A method of forming an organic-inorganic hybrid superhydrophobic anti-corrosion coating on the surface of carbon steel
  • A method of forming an organic-inorganic hybrid superhydrophobic anti-corrosion coating on the surface of carbon steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In a 250mL toluene solution containing 5g of silane coupling agent KH550, mCM-41 was added to the mesoporous molecular sieve with an average pore size of 4 nm, heated to 60 °C, magnetically stirred for 3h, filtered, washed, dried, and modified mesoporous molecular sieve was obtained.

[0046] The 3g triazinyl corrosion inhibitor having the following structure was dissolved in 100mL of ethyl acetate, the above-described modified mesoporous molecular sieve was added, impregnated under vacuum for 4h, filtered, washed, dried, and the mesoporous molecular sieve of loading corrosion inhibitor was obtained.

[0047]

[0048] Weigh 10g of epoxy resin, dissolved in 50mL of ethyl acetate, add 0.1g of support corrosion inhibitor mesoporous molecular sieve, 1g of amino silicone oil, 0.1g of sodium dodecyl sulfate and 0.1g of polyethylene glycol 600, first dispersed at a speed of 6000r / min under a high-speed disperser for 20min, and then ultrasonically dispersed for 20min. After the d...

Embodiment 2

[0053] In the 250mL toluene solution containing 7.5g silane coupling agent KH550, 5g of mesoporous molecular sieve MCM-41 with an average pore size of 4 nm was added, heated to 70 °C, magnetic stirring treatment for 4h, filtered, washed, dried, and modified mesoporous molecular sieve was obtained.

[0054] The 3.5g triazinyl corrosion inhibitor having the following structure was dissolved in 100mL of ethyl acetate, the above-mentioned modified mesoporous molecular sieve was added, impregnated under vacuum for 5h, filtered, washed, dried, and the mesoporous molecular sieve of loading corrosion inhibitor was obtained.

[0055]

[0056] Weigh 10g epoxy resin, dissolved in 50mL ethyl acetate, add 0.15g of support corrosion inhibitor mesoporous molecular sieve, 1.5g of amino silicone oil, 0.15g of sodium dodecyl sulfate and 0.15g of polyethylene glycol 600, first dispersed at a speed of 7000r / min under a high-speed disperser for 20min, and then ultrasonically dispersed for 30min. Aft...

Embodiment 3

[0060] In the 250mL toluene solution containing 10g silane coupling agent KH550, 5g of mesoporous molecular sieve MCM-41 with an average pore size of 4nm was added, heated to 80 °C, magnetic stirring treatment for 5h, filtered, washed, dried, and modified mesoporous molecular sieve was obtained.

[0061] 4g of triazinyl corrosion inhibitor having the following structure was dissolved in 100mL of ethyl acetate, the above modified mesoporous molecular sieve was added, impregnated under vacuum for 6h, filtered, washed, dried, and the mesoporous molecular sieve of loading corrosion inhibitor was obtained.

[0062]

[0063] Weigh 10g of epoxy resin, dissolved in 50mL of ethyl acetate, add 0.2g of supported corrosion inhibitor mesoporous molecular sieve, 2g of amino silicone oil, 0.2g of sodium lauryl sulfate and 0.2g of polyethylene glycol 600, first dispersed at a speed of 8000r / min under a high-speed disperser for 20min, and then ultrasonically dispersed for 40min. After the dispersi...

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Abstract

The invention relates to a method for forming an organic-inorganic hybrid super-hydrophobic anti-corrosion coating on the surface of carbon steel, which is to scrape and coat the coating liquid on the surface of the carbon steel, and when the coating liquid reaches a semi-cured state, place a super-hydrophobic nano SiO 2 Dip in the dispersion liquid, take it out and heat it for curing, so as to form an organic-inorganic hybrid superhydrophobic anti-corrosion coating on the surface of carbon steel. The coating solution is obtained by adding modified mesoporous molecular sieves loaded with corrosion inhibitors, amino silicone oil, dispersant and curing agent to epoxy resin ethyl acetate solution, and dispersed evenly. The modified mesoporous molecular sieves loaded with corrosion inhibitors Molecular sieves are modified mesoporous molecular sieves with silane coupling agents and loaded with triazine-based corrosion inhibitors. The anticorrosion coating prepared by the invention improves the corrosion resistance of the coating while solving the problem of easy corrosion of the carbon steel surface.

Description

Technical field [0001] The present invention belongs to the field of metal protective material technology, relates to a superhydrophobic anti-corrosion coating, in particular to a method of forming an organic - inorganic hybrid superhydrophobic anti-corrosion coating on the surface of carbon steel. Background [0002] Carbon steel, as the most widely used steel, has been widely used in construction, machinery, engineering, transportation and other fields, but it is extremely susceptible to the surrounding environment, reaction produces corrosion, and brings safety hazards to the operation of various equipment and components, so it is of great significance to its corrosion protection. [0003] As the most direct and effective means of metal corrosion protection, coating is one of the most widely used methods of modern industrial material protection. Among them, epoxy resin is the most widely used anti-corrosion coating because of its good corrosion resistance, chemical resistance ...

Claims

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Application Information

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Patent Type & Authority Patents(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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