Primer and topcoat syncretic zinc cold spray coating and preparation method thereof

A technology of cold-spraying zinc and coatings, which is applied in the direction of anti-corrosion coatings, rosin coatings, polyamide coatings, etc., which can solve the problems of not being able to adapt to harsh use environments and achieve a beautiful coating surface

Inactive Publication Date: 2012-11-07
TIANCHANG YINHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing cold spray zinc coatings are basically composed of film-forming substances (such as acrylic acid, polystyrene, epoxy), zinc powder, additives, solvents, etc. Some key technical indicators of this type of cold spray zinc coatings, such as adhesion , resistance to neutral salt water, resistance to neutral salt spray, resistance to artificial accelerated aging and other indicators can not adapt to the harsh environment

Method used

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  • Primer and topcoat syncretic zinc cold spray coating and preparation method thereof
  • Primer and topcoat syncretic zinc cold spray coating and preparation method thereof
  • Primer and topcoat syncretic zinc cold spray coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0069] A cold spray zinc coating with a bottom surface is composed of the following components: thermoplastic solid acrylic resin B-66 (acid value 0.2mgKOH) 25kg; zinc powder 770kg; polyamide wax ULTRA2kg; nano silica solution VK-S01Y25kg ; Solvent PMA178kg.

[0070] The preparation method of the cold spray zinc coating:

[0071] 1. First add 100kg solvent PMA to the reactor;

[0072] 2. Start the disperser to 400 rpm, add 25kg of thermoplastic solid acrylic resin B-66, and dissolve to a transparent state;

[0073] 3. Slowly add 770kg zinc powder, and increase the speed of the disperser to 1200 revolutions per minute until the paint fineness is less than 40 microns;

[0074] 4. When the paint temperature naturally rises to 50-60 degrees, the speed of the disperser is reduced to 800 rpm, add 2kg of polyamide wax ULTRA, and stir for 30 minutes;

[0075] 5. Add the remaining 78kg solvent PMA and stir for 15 minutes;

[0076] 6. The speed of the disperser is reduced to 500 revolutions per mi...

Embodiment 2

[0081] A cold-sprayed zinc coating with one bottom surface is composed of the following components: thermoplastic solid polycarbonate resin (acid value 0.8mgKOH) 10kg; zinc powder (purity ≥99.5%, particle size 20-30μm) 900kg; poly Olefin wax 1kg; nano silica solution (particle size 10-30nm, concentration 10wt%) 10kg; solvent ethylene glycol butyl ether acetate 79kg.

[0082] The preparation method of the cold spray zinc coating:

[0083] 1. First add 39kg of ethylene glycol butyl ether acetate into the reactor;

[0084] 2. Start the disperser to 200 rpm, add the thermoplastic solid polycarbonate resin, and dissolve it to a transparent state;

[0085] 3. Add zinc powder slowly and increase the speed of the disperser to 1300 revolutions per minute until the paint fineness is less than 50 microns;

[0086] 4. When the paint temperature naturally rises to 45-60 degrees, the speed of the disperser is reduced to 850 revolutions per minute, polyolefin wax is added, and stirred for 30 minutes;...

Embodiment 3

[0090] A cold-sprayed zinc coating with one bottom surface is composed of the following components: thermoplastic polymer modified rosin resin (acid value 0.3mgKOH) 100kg; zinc powder (particle size 2-20μm, purity ≥99.9%) 750kg; modification Hydrogenated castor oil 10kg; nano silica solution (particle size 20-50nm, concentration 30wt%) 100kg; solvent glycol ethyl ether acetate 40kg.

[0091] The preparation method of the cold spray zinc coating:

[0092] 1. First add 67kg of ethylene glycol ethyl ether acetate into the reactor;

[0093] 2. Start the disperser to 500 rpm, add the thermoplastic polymer modified rosin resin, and dissolve it to a transparent state;

[0094] 3. Add zinc powder slowly and increase the speed of the disperser to 1000 revolutions per minute until the paint fineness is less than 40 microns;

[0095] 4. When the paint temperature naturally rises to 55-70 degrees, the speed of the disperser drops to 550 rpm, add modified hydrogenated castor oil, and stir for 30 mi...

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Abstract

The invention relates to a primer and topcoat syncretic zinc cold spray coating, which comprises zinc powder, an organic solvent, organic resin and a filling, wherein the organic resin is thermoplastic resin; and the filling is selected from a silicon dioxide solution. According to the primer and topcoat syncretic zinc cold spray coating, the anticorrosion service life is prolonged, the overcoatability of primer and topcoat is high, the surface of a coating layer of the coating is compact, and the primer and topcoat syncretic zinc cold spray coating has the performance of the high adhesive force, corrosion prevention and the like of the primer, and has high weather fastness of the topcoat.

Description

Technical field [0001] The invention relates to a cold spray zinc coating and a preparation method thereof, in particular to a single-component bottom surface integrated cold spray zinc coating and a preparation method thereof, and belongs to the technical field of heavy-duty anticorrosive coatings. Background technique [0002] Heavy-duty coating refers to a type of anti-corrosion coating that can be used in relatively harsh corrosive environments compared to conventional anti-corrosion coatings and has a longer protection period than conventional anti-corrosion coatings. The dry film thickness of heavy-duty anti-corrosion coatings is more than 200μm or 300μm, and 500μm-1000μm, even as high as 2000μm, while the dry film thickness of ordinary anti-corrosion coatings is only about 100μm or 150μm. Therefore, heavy-duty anti-corrosion coatings can be used under harsh conditions and have a long anti-corrosion life. For example, heavy-duty anti-corrosion coatings can be used for more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D133/12C09D133/10C09D169/00C09D177/00C09D193/04C09D161/16C09D181/06C09D123/12C09D7/12C09D5/10
Inventor 管伟孙巨福
Owner TIANCHANG YINHU PAINT
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