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Nano-composite polyurethane aircraft paint and its preparation method and application

An aviation coating and nano-composite technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of insufficient gloss retention and color retention, loss of commercial competitiveness, increase of working hours and costs, etc., to improve color retention. The effect of improving the anti-ultraviolet aging performance and low cost

Inactive Publication Date: 2004-07-21
DALIAN YUXIANG TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of gloss and color retention of ordinary aliphatic polyurethane topcoat coating systems, the gloss of the coating will continue to decline after two or three years of use, and it will lose its original luster by about five years. If it becomes obsolete in appearance, it will lose its commercial competitiveness [He Nai, Lei Junzhi, Hua Xinhao, Aviation Coatings and Coating Technology, Chemical Industry Press, 2000, P175]
Adding a layer of UV-resistant varnish on the existing aliphatic polyurethane topcoat, although the gloss retention and color retention have been improved to a certain extent, but an additional construction process is added, which also increases the man-hours and costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 24g of hydroxyacrylic resin Desmophen in a 300ml beaker  A365 / 1 (solid content is 60%, and the hydroxyl content of solid resin is 2.8%), add above-mentioned Nanos type nano slurry 36g, then add toluene 3g, ethyl acetate 10g, methyl ethyl ketone 4g, 2-nitropropane 2g, then add Disperbyk 163 wetting and dispersing agent 0.4g, BYK-310 leveling agent 0.1g, BENTONE SD-1 organic bentonite anti-settling agent (RHEOX company in the United States) 0.5g, titanium dioxide 16g, talcum powder 1g, heavy calcium carbonate 1g, mica oxidation Iron 1g, zinc phosphate 1g, the above-mentioned base materials are dispersed with a high-speed disperser at 1000rpm for 10 minutes, then ground with a horizontal sand mill until the fineness is less than 20 μm, and filtered to prepare a modified synthetic resin component for nanocomposite polyurethane aerospace coatings , wherein the nano pulp accounts for 36% of the total amount of modified synthetic resin components; the curing agent comp...

Embodiment 2

[0029] Weigh 18g of hydroxyacrylic resin Desmophen in a 300ml beaker  A365 / 1 (solid content is 60%, and the hydroxyl content of solid resin is 2.8%), add above-mentioned Nanos type nano slurry 41g, then add toluene 12g, ethyl acetate 12g, methyl ethyl ketone 4g, 2-nitropropane 2g, then add Disperbyk 163 wetting and dispersing agent 0.4g, BYK-310 leveling agent 0.1g, BENTONE SD-1 organic bentonite anti-settling agent (RHEOX company in the United States) 0.5g, titanium dioxide 6g, talcum powder 1g, heavy calcium carbonate 1g, mica oxidation 1g of iron, 1g of zinc phosphate, the above-mentioned base materials are dispersed with a high-speed disperser at 1200rpm for 50 minutes, then ground with a horizontal sand mill to a fineness of less than 20 μm, and filtered to prepare a modified synthetic resin component for nanocomposite polyurethane aerospace coatings , wherein the nano pulp accounts for 41% of the total amount of modified synthetic resin components; the curing agent com...

Embodiment 3

[0031] Weigh 18g of hydroxyacrylic resin Desmophen in a 300ml beaker  A365 / 1 (solid content is 60%, and the hydroxyl content of solid resin is 2.8%), add above-mentioned Nanos type nano slurry 46g, then add toluene 12g, ethyl acetate 7g, methyl ethyl ketone 4g, 2-nitropropane 2g, then add Disperbyk 163 wetting and dispersing agent 0.4g, BYK-310 leveling agent 0.1g, BENTONE SD-1 organic bentonite anti-settling agent (RHEOX company in the United States) 0.5g, titanium dioxide 6g, talcum powder 1g, heavy calcium carbonate 1g, mica oxidation 1g of iron, 1g of zinc phosphate, the above-mentioned base materials are dispersed with a high-speed disperser at 2000rpm for 12 minutes, then ground with a horizontal sand mill to a fineness of less than 20 μm, and filtered to prepare a modified synthetic resin component for nanocomposite polyurethane aerospace coatings , wherein the nano pulp accounts for 46% of the total amount of modified synthetic resin components; the curing agent comp...

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PUM

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Abstract

A nano-class composite polyurethane paint for airplane is composed of the modified synthetic resin and the solidifying agent. Said modified synthetic resin is prepared through sequentially adding nano slurry, solvent, assistant and pigment to synthetic resin, grinding and filtering. It is applied through mixing said modified synthetic resin with said solidifying agent to obtain paint, spraying antirust paint, and spraying said paint. Its advantage is high weatherability.

Description

technical field [0001] The invention relates to nanotechnology and corrosion protection technology, in particular to a nanocomposite polyurethane coating with high weather resistance and its preparation method and application. Background technique [0002] Two-component polyurethane coatings have become the leading products of aerospace coatings because they can be cured at room temperature, and the paint film has the advantages of chemical resistance, abrasion resistance, freeze-thaw resistance, and good weather resistance. The United States, the Netherlands, Germany and other countries have high-performance polyurethane aviation coatings. Finch Paint Chemical Company, Steling Spray Paint Company, American Paint Company, Dutch AKZO Company and British DESOTO Company all produce and sell polyurethane-based aerospace coatings. In 1976, U.S. Patent No. 3,989,676 reported that polyepoxide-caprolactone polyol and polyisocyanate could be used on the outer surface of aircraft to ...

Claims

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Application Information

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IPC IPC(8): C09D175/06
Inventor 刘福春韩恩厚柯伟
Owner DALIAN YUXIANG TECH GRP
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