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Chromium-free nanocomposite epoxy aircraft paint and preparation method thereof

A nano-composite, aerospace coating technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of anti-rust pigments such as toxicity, carcinogenicity, human health and environmental hazards, and achieve non-sinking and corrosion resistance Improve the effect of good storage stability

Active Publication Date: 2012-08-08
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a chromium-free nano-composite epoxy aviation coating with good corrosion resistance and its preparation method, to solve the problem that the anti-rust pigments in the prior art use toxic and carcinogenic chromate, which is harmful to human health and Environmental hazards and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation method of component 1: Add 40kg of bisphenol A epoxy resin E-51 into the dispersion tank, add 19kg of toluene, then add 10kg of the above-mentioned Nanos1000 nano slurry, and then add DISPERBYK-106 wetting and dispersing agent 0.8kg, BYK- 0.2kg of VP-354 leveling agent, 0.5kg of BENTONE 27 organic bentonite anti-sedimentation agent (RHEOX company in the United States), disperse at 400rpm for 10 minutes with a high-speed disperser, then add 6kg of titanium dioxide, 8kg of antirust pigment phosphate SRPP containing strontium , Zinc p-nitrocinnamate 0.5kg, talcum powder 15kg, disperse 20 minutes with high-speed disperser 500rpm; Then grind 2 hours with horizontal sand mill, after being 25 microns to fineness, filter, pack, be prepared into chrome-free Component one of nanocomposite epoxy aerospace coatings.

[0043] The preparation method of component two: Add 80kg of curing agent TY203 into the dispersion tank, then add 20kg of xylene, disperse with a high...

Embodiment 2

[0046]The preparation method of component 1: Add 40kg of bisphenol A epoxy resin E-51 into the dispersion tank, add 19kg of toluene, then add 10kg of the above-mentioned Nanos1000 nano slurry, and then add DISPERBYK-106 wetting and dispersing agent 0.8kg, BYK- 0.2kg of VP-354 leveling agent, 0.5kg of BENTONE 27 organic bentonite anti-sedimentation agent (RHEOX company in the United States), disperse at 400rpm for 10 minutes with a high-speed disperser, then add 6kg of titanium dioxide, 20kg of antirust pigment phosphate SRPP containing strontium , zinc p-nitrocinnamate 2kg, talcum powder 1.5kg, disperse 20 minutes with high-speed disperser 500rpm, then grind 2 hours with horizontal sand mill, after being 25 microns to fineness, filter, pack, prepare chrome-free Component one of nanocomposite epoxy aerospace coatings.

[0047] The preparation method of component two: Add 80kg of curing agent TY203 into the dispersion tank, then add 20kg of xylene, disperse with a high-speed dis...

Embodiment 3

[0050] The preparation method of component 1: Add 40kg of bisphenol A epoxy resin E-51 into the dispersion tank, add 19kg of toluene, then add 5kg of the above-mentioned Nanos1000 nano slurry, and then add DISPERBYK-106 wetting and dispersing agent 0.8kg, BYK- 0.2kg of VP-354 leveling agent, 0.5kg of BENTONE 27 organic bentonite anti-sedimentation agent (RHEOX company in the United States), disperse at 400rpm for 10 minutes with a high-speed disperser, then add 1kg of titanium dioxide, 30kg of antirust pigment phosphate SRPP containing strontium , Zinc p-nitrocinnamate 3kg, talcum powder 0.5kg, disperse 20 minutes with high-speed disperser 500rpm, then grind 2 hours with horizontal sand mill, after being 25 microns to fineness, filter, pack, be prepared into chrome-free Component one of nanocomposite epoxy aerospace coatings.

[0051] The preparation method of component two: Add 80kg of curing agent TY203 into the dispersion tank, then add 20kg of xylene, disperse with a high-...

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Abstract

The invention relates to a nanometer technology and a corrosion protection technology, and concretely relates to a chromium-free nanocomposite epoxy aircraft paint with a high corrosion resistance, and a preparation method thereof. The paint comprises a component I and a component II, wherein the component I which comprises the following raw materials, by weight, 0.2-35 parts of a nanometer slurry, 10-90 parts of an epoxy resin, 0-40 parts of a tinting pigment, 0.01-5 parts of an organic corrosion inhibitor and 5-40 parts of an antirust pigment is prepared by carrying out high speed dispersion on the raw materials of the epoxy resin, a solvent, the nanometer slurry, an assistant and the like, grinding and filtering; the component II is prepared by dispersing and mixing a curing agent and a solvent; and the paint is obtained by uniformly mixing the component I and the component II in proportion. The preparation method of the invention, which adopts the novel antirust pigment and the organic corrosion inhibitor to prepare the chromium-free nanocomposite epoxy aircraft paint, makes a nanometer powder material be stably dispersed in the paint and the corrosion resistance of a resulting coating be improved. The prepared paint is in favor of environmental protection because of use of the chromium-free antirust pigment.

Description

technical field [0001] The invention relates to nanotechnology and corrosion protection technology, in particular to a chrome-free nanocomposite epoxy aviation coating with high corrosion resistance and a preparation method thereof. Background technique [0002] Epoxy coatings are widely used in the aviation field due to their good heat resistance, chemical medium resistance and oil resistance. It can slow down or prevent the corrosion of the aircraft substrate by moisture, oxygen, salt spray, acid spray and machine liquid in the atmospheric environment. At present, chromates such as strontium chromate and zinc chromate are the main antirust pigments in aircraft primers, and the dosage is generally 10wt%-20wt% of the total amount of the primer. For example, the existing aircraft zinc yellow epoxy primer contains 10wt%-25wt% zinc chrome yellow in the base material of the primer. [0003] Chromate is a toxic and carcinogenic substance, which is harmful to human health and th...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/02C09D5/08
Inventor 刘福春韩恩厚柯伟
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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