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Fluorine nanometer composite modified anticorrosion paint

A nano-composite, anti-corrosion coating technology, applied in the field of coatings, can solve the problems of decreased anti-corrosion effect, poor scratch resistance, environmental pollution, etc., and achieve the effect of increased shielding density, good weather resistance, and improved anti-corrosion performance

Inactive Publication Date: 2017-02-15
中国人民解放军空军勤务学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional anti-corrosion coatings are anti-corrosion coatings containing heavy metals and zinc-rich anti-corrosion coatings. Among them, heavy metal anti-corrosion organic coatings containing chromium, lead, and molybdenum compounds are relatively effective, but they will release a large amount of chromium, lead, and molybdenum during use. Harmful heavy metal ions, causing serious pollution to the environment, especially its poor scratch resistance, once the coating is slightly scratched, the anti-corrosion effect will be greatly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] Step 1, preparation of modified nano titanium dioxide

[0028] Accurately weigh 13 parts of dried nano-titanium dioxide, add 150 parts of absolute ethanol, fully stir and ultrasonically oscillate, then slowly add 5 parts of γ-aminopropyltriethoxysilane, heat to 70°C, and reflux at constant temperature for 2 hours, Suction filtration, washing with absolute ethanol three times, and drying to obtain surface-modified nano-titanium dioxide;

[0029] Step 2, preparation of fluoropolymer:

[0030] Weigh 6 parts of 2-hydroxyethyl methacrylate phosphate, 4 parts of vinyltrimethoxysilane and 8 parts of hexafluorobutyl acrylate in a reactor, add 80 mL of toluene solvent, ultrasonically disperse for 30 minutes, and then mechanically stir and heated to 70°C; add 0.2 parts of initiator benzoyl peroxide, and react for 3 hours; after the reaction, the product is precipitated with methanol, filtered with suction, dried in the air, extracted with acetone and toluene for 12 hours respect...

Embodiment 1

[0044] A fluorine nanocomposite modified anti-corrosion coating, prepared from the following raw materials in parts by mass:

[0045] 32 parts of water-based polyurethane emulsion; 28 parts of epoxy resin; 8 parts of modified nano-titanium dioxide, 11 parts of fluoropolymer, 7 parts of pigment, 0.3 part of catalyst triethylamine, and 12 parts of additives. Among them, the filler is kaolin, the reinforcing agent is polyamide fiber, the film-forming aid is ethylene glycol ether, the dispersant is sodium tripolyphosphate, the thickener is hydroxymethyl cellulose, the epoxy resin is E-06, The pigment is a phthalocyanine pigment.

Embodiment 2

[0047] A fluorine nanocomposite modified anti-corrosion coating, prepared from the following raw materials in parts by mass:

[0048] 45 parts of water-based polyurethane emulsion; 36 parts of epoxy resin; 12 parts of modified nano-titanium dioxide, 14 parts of fluoropolymer, 11 parts of pigment, 0.5 part of catalyst triethylamine, and 14 parts of additives. Among them, the filler is barium sulfate, the reinforcing agent is polyvinyl chloride fiber, the film-forming aid is ethylene glycol butyl ether, the dispersant is sodium tetrapolyphosphate, the thickener is sodium polyacrylate, and the epoxy resin is E-12 , The pigment is titanium dioxide, ultramarine blue pigment.

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PUM

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Abstract

The invention relates to a fluorine nanometer composite modified anticorrosion paint, comprising 32 to 55 parts of waterborne polyurethane emulsion, 28 to 43 parts of epoxy resin, 8 to 15 parts of modified nanometer titanium dioxide, 11 to 19 parts of fluorine polymer, 7 to 14 parts of pigment, 0.3 to 0.8 part of a catalyst triethylamine and 12 to 17 parts of an auxiliary agent. A preparation method for the paint comprises the following steps: step 1, preparing modified nanometer titanium dioxide; step 2, preparation of a fluorine polymer; and step 3, compounding of the anticorrosion paint. According to the invention, the volume-filling density of a carrier is improved through nanometer titanium dioxide, so capillary action is reduced and shielding density is greatly improved; a film structure can be filled with tiny particles of a nano-material, so the density of a film is enhanced, permeability of the film is reduced, and corrosion of water, oxygen and the like to a metal substrate is efficiently blocked; thus, the anticorrosion performance of the paint is improved.

Description

technical field [0001] The invention relates to a fluorine nanocomposite modified anticorrosion coating, which belongs to the field of coatings. Background technique [0002] The problem of metal corrosion pervades all sectors and industries of the national economy, causing great harm to the development of the national economy, people's lives and the social environment. Therefore, the study of metal anti-corrosion coatings has become an important topic. Traditional anti-corrosion coatings are anti-corrosion coatings containing heavy metals and zinc-rich anti-corrosion coatings. Among them, heavy metal anti-corrosion organic coatings containing chromium, lead, and molybdenum compounds are relatively effective, but they will release a large amount of chromium, lead, and molybdenum during use. Harmful heavy metal ions cause serious pollution to the environment, especially its poor scratch resistance. Once the coating is slightly scratched, the anti-corrosion effect will be gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D163/00C09D133/14C09D5/08C09D7/12C08F220/22C08F230/08C08F230/02
CPCC08F220/22C08L2205/035C09D5/08C09D175/04C08L63/00C08L43/04C08L77/00C08L1/284C08K13/06C08K9/06C08K2003/2241C08K3/346C08K5/06C08K2003/324C08F230/08C08F230/02
Inventor 校云鹏赵媛莉孙元宝胡利明邱贞慧董仕宝周山丹
Owner 中国人民解放军空军勤务学院
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