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Nano metal anticorrosion coating material, and preparation and application thereof

A nano-metal, anti-corrosion coating technology, applied in anti-corrosion coatings, alkali metal silicate coatings, coatings, etc., can solve the problems of high production cost, poor high temperature corrosion resistance of the film layer, complex synthesis process, etc. The effect of energy consumption, good durability and simple production process

Inactive Publication Date: 2013-06-12
EAST CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, anti-corrosion materials based on glass ceramics have received extensive attention. Glass ceramic materials can be synthesized by high-temperature sintering methods. For example, a certain proportion of silicon dioxide, zinc oxide, aluminum oxide, zirconium dioxide, titanium dioxide Composite such as metal oxides (J.Mater.Sci.2011, 46, 1975-2000), obtain glass ceramics by high temperature sintering, and then obtain micron or nanoscale particles by crushing and grinding, and compound with water or other solvents to obtain Anti-corrosion coatings, but this method has complicated synthesis process and high production cost
Recently, Yuewen Huang reported metal anti-corrosion coatings based on nano-hybrid organosilicon sol ("Electroplating and Finishing", 2008, 27, 43-46), using tetraethoxysilane and some organosilanes as raw materials, through sol -Gel method, the alcohol-based nano-hybrid organosilicon sol is prepared under catalyst and heating conditions, but due to the inherent defects of the silica sol, the high-temperature corrosion resistance of the film layer is poor

Method used

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  • Nano metal anticorrosion coating material, and preparation and application thereof
  • Nano metal anticorrosion coating material, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mix 22.6 grams of methyltriethoxysilane and 6.6 grams of dimethyldiethoxysilane, stir evenly with magnetic force, add 0.83 grams of sodium hydroxide, stir and react at room temperature for 16 hours, slowly add 3.5 grams of water dropwise to In the above solution, after the addition was completed, it was allowed to continue to react at room temperature for 2 hours to obtain a water glass colloidal solution.

[0026] 2.0 g of nano-Al 2 o 3 Add it to 8.0 grams of ethanol, and use ultrasonic dispersion to obtain uniformly dispersed Al 2 o 3 The dispersion liquid is added to the above-mentioned water glass colloidal solution, and stirred at room temperature to obtain the target product nano metal anti-corrosion coating material (water glass nano composite coating).

Embodiment 2

[0028] Mix 22.6 grams of methyltriethoxysilane and 6.6 grams of dimethyldiethoxysilane, stir evenly with magnetic force, add 0.83 grams of sodium hydroxide, stir and react at room temperature for 16 hours, slowly add 3.5 grams of water dropwise to In the above solution, after the addition was completed, it was allowed to continue to react at room temperature for 2 hours to obtain a water glass colloidal solution.

[0029] 2.0 g of nano-Al 2 o 3 and 0.3 g TiO 2 Add it into 10.0 g of methyl glycol, and disperse it by ultrasonic waves to obtain evenly dispersed Al 2 o 3 and TiO 2 The dispersion liquid is added to the above-mentioned water glass colloidal solution, and stirred evenly at room temperature to obtain the product water glass nano-composite coating.

Embodiment 3

[0031] Mix 22.6 grams of methyltriethoxysilane and 6.6 grams of dimethyldiethoxysilane, stir evenly with magnetic force, add 0.83 grams of sodium hydroxide, stir and react at room temperature for 16 hours, slowly add 3.5 grams of water dropwise to In the above solution, after the addition was completed, it was allowed to continue to react at room temperature for 2 hours to obtain a water glass colloidal solution.

[0032] 2.0 g of nano-Al 2 o 3 and 0.3 g ZrO 2 Add it into 10.0 g of 1-methyl-1,2-propanediol, and disperse it by ultrasonic waves to obtain evenly dispersed Al 2 o3 and ZrO 2 The dispersion liquid is added to the above-mentioned water glass colloidal solution, and stirred evenly at room temperature to obtain the product water glass nano-composite coating.

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Abstract

The invention discloses a nano metal anticorrosion coating material, and a preparation method and application thereof. The material comprises a water glass colloid solution and nano metal oxide particles. The nano metal anticorrosion coating material has the advantages of favorable endurability, high hardness, acid resistance and alkali resistance, and can be tolerant to high temperature of higher than 800 DEG C; and the product can be used for anticorrosion treatment and property improvement of metal accessories for buildings, automobiles, electric apparatuses, home appliances, fasteners, structural members and the like, and can prolong the metal service life and lower the energy consumption.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion materials, in particular to a nano-metal anti-corrosion coating material and its preparation method and application. Background technique [0002] The corrosion of metals spreads all over the national economy and brings huge losses to the national economy. For a long time, people have been using various technologies to protect metals. The common method is to coat the metal surface with an anti-corrosion coating to isolate the corrosive medium from the metal substrate. Commonly used anti-corrosion coatings include: epoxy resin coatings, polyurethane coatings, phosphorus flake resin coatings, inorganic zinc-rich coatings, etc. These coatings use organic polymers as substrates, and have the advantages of short curing time, low curing temperature, and convenient construction. , It is widely used in the anticorrosion of metal surfaces such as buildings, bridges and ships. However, since these ...

Claims

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Application Information

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IPC IPC(8): C09D1/02C09D7/12C09D5/08
Inventor 林和春段纯钢褚君浩
Owner EAST CHINA NORMAL UNIVERSITY
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