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Water-soluble nano powdered aluminium paint and preparation method thereof

A nano-aluminum powder and coating technology, used in anti-corrosion coatings, polyester coatings, epoxy resin coatings, etc., can solve problems such as weak adhesion, solvent pollution, harmful to human health, etc., and achieve low VOC content and strong corrosion resistance. Ability, good environmental performance

Inactive Publication Date: 2009-06-10
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the toxicity of organic solvents, the toxicity will be volatilized during the production process or coating drying process, causing environmental pollution and harmful to human health
[0003] The advent of water-based coatings has solved the problem of solvent pollution. However, compared with solvent-based coatings, the current general water-based coatings have shortcomings such as insufficient coating film, weak adhesion, and poor corrosion resistance.
The existence of these shortcomings limits the wide application of waterborne coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: Add 1.1 grams of silok-7230 (manufactured by Guangzhou Silok Chemical Co., Ltd.) (non-ionic silicone polymer) to 80 grams of deionized water, and stir for 10 minutes at a stirring speed of 500 r / min to obtain the first mixture;

[0029] Step 2: Add 5.5 grams of elemental aluminum powder with a particle size of 40-60 nm to the first mixed solution, and stir for 10 minutes at a stirring speed of 1200 r / min to obtain the second mixed solution;

[0030] Step 3: Mix the second mixed solution, 1 gram of silok-4055 (fluorine-containing foam-breaking polymer solution), 2 grams of WZ-128 (produced by Shanghai Xinyang Chemical Co., Ltd.) (acrylic ester and methacrylate cross-linked copolymer Emulsion), 1.2 grams of silok-304 (polyether modified silicone) and 1.1 grams of silok-622P (chlorinated olefin polymer) were added to 45 grams of water-based acrylic resin emulsion, and the stirring speed was 2000r / min. After 50min, the third mixed solution was obtained;

[0031] S...

Embodiment 2

[0034] Step 1: Add 1.5 grams of silok-7110 (a blend of polymer block copolymer and silicone) to 75 grams of deionized water, and stir for 8 minutes at a stirring speed of 700 r / min to obtain the first mixed solution ;

[0035] Step 2: Add 7 grams of elemental aluminum powder with a particle size of 10-50 nm to the first mixed solution, and stir for 30 minutes at a stirring speed of 1500 r / min to obtain the second mixed solution;

[0036] Step 3: the second mixed solution, 1.4 grams of LT-201 (produced by Shanghai Liqi Chemical Auxiliary Co., Ltd.) (special polyorganosiloxane), 1.2 grams of WZ-120 (hydrophobic modified acrylate cross-linked copolymer ), 1 gram of silok-8331 (alkyl modified polyorganosiloxane) and 1.6 gram of silok-629 (alkoxy nonionic compound) were added to 35 grams of water-based alkyd resin emulsion, and the stirring speed was 1700r / min Under the condition, after stirring for 90min, the third mixed solution was obtained;

[0037] Step 4: Add 13.3 g of ethy...

Embodiment 3

[0040] Step 1: Add 1.5 grams of silok-7000 (highly active silicone surfactant) into 50 grams of deionized water, and stir for 15 minutes at a stirring speed of 800 r / min to obtain the first mixed solution;

[0041] Step 2: Add 5 grams of elemental aluminum powder with a particle size of 50-100 nm to the first mixed solution, and stir for 20 minutes at a stirring speed of 1600 r / min to obtain the second mixed solution;

[0042] Step 3: the second mixed solution, 1.3 grams of SF-808 (produced by Guangdong Biaomei Silicon Fluorine Fine Chemical Research Institute Co., Ltd.) (organic silicon foam breaking polymer), 1.1 grams of SF-730 (acrylate copolymer emulsion), 1.5 gram of silok-8400 (polyester modified polysiloxane) and 1.3 gram of silok-629 (alkoxy nonionic compound) are added in 30 gram of water-based epoxy resin emulsions, at a stirring speed of 1600r / min, After stirring for 60min, the third mixed solution was obtained;

[0043] Step 4: Add 8 grams of amino resin curing a...

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Abstract

The invention discloses a waterborne nano aluminum power coating. The coating consists of simple substance aluminum powder, a dispersing agent, a defoaming agent, thickener, a leveling agent, an adhesive force promoter, a solidifying agent, a film forming material and deionized water, wherein 100g of the deionized water is added with 5 to 15g of the simple substance aluminum powder, 1 to 3g of the dispersing agent, 1 to 3g of the defoaming agent, 1 to 3g of the thickener, 1 to 3g of the leveling agent, 1 to 3g of the adhesive force promoter, 10 to 20g of the solidifying agent and 40 to 60g of the film forming material. The paint film of the waterborne nano aluminum power coating has the advantages of good adhesive force, stronger anti-corrosion capability, good environmental protection property, and low VOC content.

Description

technical field [0001] The invention relates to an anti-corrosion coating, in particular to a water-based nano-aluminum powder coating and a method for preparing the water-based nano-aluminum powder coating. Background technique [0002] Traditional solvent-based coatings include natural oils, resins, synthetic polymers, and organic solvents. Due to the toxicity of organic solvents, the toxicity will be volatilized during the production process or coating drying process, causing environmental pollution and harmful to human health. [0003] The advent of water-based coatings has solved the problem of solvent pollution. However, compared with solvent-based coatings, the current general water-based coatings have disadvantages such as insufficient compactness of the coating film, weak adhesion, and poor corrosion resistance. The existence of these disadvantages limits the wide application of waterborne coatings. Contents of the invention [0004] One of the purposes of the p...

Claims

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Application Information

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IPC IPC(8): C09D5/10C09D163/00C09D167/08C09D133/00
Inventor 刘建华韩雨詹中伟李松梅于美
Owner BEIHANG UNIV