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Low-VOC high-corrosion-resistance environment-friendly epoxy coating material and preparation method thereof

An epoxy coating, corrosion-resistant technology, applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve problems such as less research

Inactive Publication Date: 2021-10-08
SUZHOU COLOR WAY ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on how to improve the bonding force between the coating and the metal to further improve the durability of the coating's corrosion resistance.

Method used

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  • Low-VOC high-corrosion-resistance environment-friendly epoxy coating material and preparation method thereof
  • Low-VOC high-corrosion-resistance environment-friendly epoxy coating material and preparation method thereof
  • Low-VOC high-corrosion-resistance environment-friendly epoxy coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Prepare the methanol solution of zinc nitrate hexahydrate with a concentration of 0.12mol / L and the methanol solution of 2-methylimidazole with a concentration of 0.45mol / L respectively, mix the methanol solution of zinc nitrate hexahydrate with 2-methylimidazole The methanol solution was mixed with a volume ratio of 1:1, stirred at room temperature and 1000 rpm for 20 hours, then centrifuged, the obtained precipitate was washed with methanol, and finally dried to obtain ZIF-8 particles;

[0029] (2) Disperse 0.15gg ZIF-8 particles in 50ml of absolute ethanol, add 0.1g of cetyltrimethylammonium bromide, stir and disperse, then add dropwise ammonia water with a concentration of 25wt% to adjust the pH of the solution to 11 , slowly add 0.15ml of tetrabutyl titanate dropwise and vigorously stir for 24h, then centrifuge, the obtained precipitate is washed with ethanol and deionized water in turn, and then dried to obtain a TiO2 / ZIF-8 composite material;

[0030](3) In p...

Embodiment 2

[0033] (1) Prepare the methanol solution of zinc nitrate hexahydrate with a concentration of 0.14mol / L and the methanol solution of 2-methylimidazole with a concentration of 0.55mol / L respectively, mix the methanol solution of zinc nitrate hexahydrate with 2-methylimidazole The methanol solution was mixed with a volume ratio of 1:1, stirred at room temperature and 2000 rpm for 25 hours, then centrifuged, the obtained precipitate was washed with methanol, and finally dried to obtain ZIF-8 particles;

[0034] (2) Disperse 0.17g of ZIF-8 particles in 50ml of absolute ethanol, add 0.3g of hexadecyltrimethylammonium bromide, stir and disperse, then add dropwise the concentration of 25wt% ammonia to adjust the pH of the solution to 11 , slowly add 0.15ml of tetrabutyl titanate dropwise and vigorously stir for 24h, then centrifuge, the obtained precipitate is washed with ethanol and deionized water in turn, and then dried to obtain a TiO2 / ZIF-8 composite material;

[0035] (3) In par...

Embodiment 3

[0038] (1) Prepare the methanol solution of zinc nitrate hexahydrate with a concentration of 0.13mol / L and the methanol solution of 2-methylimidazole with a concentration of 0.55mol / L respectively, mix the methanol solution of zinc nitrate hexahydrate with 2-methylimidazole The methanol solution was mixed with a volume ratio of 1:1, stirred at room temperature and 1500 rpm for 20 hours, then centrifuged, the obtained precipitate was washed with methanol, and finally dried to obtain ZIF-8 particles;

[0039] (2) Disperse 0.16g of ZIF-8 particles in 50ml of absolute ethanol, add 0.2g of hexadecyltrimethylammonium bromide, stir and disperse, then add dropwise the concentration of 25wt% ammonia to adjust the pH of the solution to 11 , slowly add 0.15ml of tetrabutyl titanate dropwise and vigorously stir for 24h, then centrifuge, the obtained precipitate is washed with ethanol and deionized water in turn, and then dried to obtain a TiO2 / ZIF-8 composite material;

[0040] (3) In par...

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Abstract

The invention discloses a low-VOC high-corrosion-resistance environment-friendly epoxy coating material, which is prepared from the following components, by mass, 20-25% of epoxy resin, 1.5-2% of petroleum resin, 5-8% of methyl isobutyl ketone, 1-2% of polyamide wax, 0.5-0.8% of a wetting dispersant, 0.2-0.4% of an acrylate defoaming agent, 4-6% of titanium dioxide, 0.2-0.4% of iron oxide yellow, 0.3-0.5% of carbon black, 25-35% of aluminum oxide, 25-35% of feldspar powder, 2-3% of n-butyl alcohol, 0.3-0.6% of methylsilane and 3-5% of a reinforcing filler, wherein the reinforcing filler is a TiO2 / ZIF-8 composite material modified by a polymer. The invention also discloses a preparation method of the epoxy coating material. The prepared epoxy coating material is low in VOC content, good in stability, good in corrosion resistance and excellent in mechanical property.

Description

Technical field: [0001] The invention relates to the field of polymer materials, in particular to a low-VOC, high-corrosion-resistant, environment-friendly epoxy coating and a preparation method thereof. Background technique: [0002] The phenomenon that metal materials are damaged by chemical or electrochemical action in the environment is called corrosion. The corrosion behavior of metals is spontaneous in chemical thermodynamics, and metals will corrode to varying degrees in different environments. At present, metals and metal alloys are widely used and occupy an important position in the development of the national economy. However, when they are used, the corrosion of the metal surface will not only cause property losses, but also cause major accidents. [0003] With the development of science and technology, the anti-corrosion treatment of metal surfaces has effectively reduced the loss caused by metal corrosion and improved the safety of metal use. At present, the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/08C09D7/62C09D7/65C09D187/00
CPCC09D163/00C09D5/08C09D7/62C09D7/65C09D7/70C08K2003/2241C08L87/00C08K9/10C08K3/22
Inventor 罗义云张建军
Owner SUZHOU COLOR WAY ENTERPRISE DEV
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