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Ultraviolet light curing colored paint and preparation method thereof

A technology of ultraviolet light and color paint, applied in the field of coatings, can solve the problems of no adhesion, poor adhesion, and increased difficulty of HIPS materials, and achieve excellent leveling, good spraying effect, and reduced equipment investment.

Active Publication Date: 2013-03-20
HUIZHOU KAIHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) General UV resin and other raw materials have no adhesion to HIPS materials at all;
[0005] (2) In the case of highly competitive competition, the raw materials used in the casings of the home appliance industry are often mixed with some recycled materials, which makes it more difficult for UV resins to use such materials;
[0006] (3) Some defects such as flakes and black spots will inevitably appear in the injection molding process of home appliances, so generally transparent UV varnish cannot cover up these defects, and if some pigments are added to the UV varnish, the thickness of the spraying will vary. If it exceeds 25 microns, there will be many technical problems such as non-drying of the varnish, stickiness, cracking, high brittleness, poor adhesion, and glue burning.

Method used

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  • Ultraviolet light curing colored paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The UV-curable colored paint of the present embodiment, its formula and preparation method are as follows:

[0059] (1) Mix 2 grams of 1-hydroxy-cyclohexyl-phenyl ketone, 2 grams of 2-hydroxy-2-methyl-1-phenyl-1-propyl ketone and 1 gram of 2,4,6 -Tritoluoyl diphenylphosphine oxide and 20.5 grams of diluent (ethyl acetate: butyl acetate: methyl ethyl ketone: isopropanol = 50: 20: 10: 20, mass ratio) are mixed under stirring, and the mixer presses 300 rpm, stirred for 5 minutes to a transparent liquid, and obtained a solution containing a photoinitiator;

[0060] (2) Add 10 grams of HDDA, 10 grams of TPGDA and 8 grams of TMPTA to the solution containing the photoinitiator prepared in step (1), and stir for 3 minutes at a stirring speed of 300 rpm until a transparent liquid is obtained. Mixture 1;

[0061] (3) Add 35 grams of multifunctional aliphatic urethane acrylate, 5 grams of modified epoxy acrylate and 3 After the addition of 1 gram of thermoplastic acrylic acid,...

Embodiment 2

[0087] Embodiment 2 performance test

[0088] Spray the UV-curable color paint prepared in Example 1 and the UV-curable color paint prepared in Comparative Examples 1-5 respectively on the plastic casing of the TV, dry at 50-55° C. for 3-4 minutes, and then irradiate with ultraviolet light (The total absorbed energy value is 700-750 mJ / cm2), and the thickness of the paint film is 20-25 microns. Test the adhesion, construction appearance, fullness, hardness and UV color drying conditions of the cured paint film.

[0089]Adhesion test: use a scratcher to scratch 100 grids of 1 mm x 1 mm square on the surface of the paint film, stick it on the surface of the paint film with 3M adhesive tape, pull it up immediately at an angle of 45°, and observe whether there are scratches on the edge Shedding: if shedding is between 0-5%, it is 5B, between 5-10% is 4B, between 10-20% is 3B, between 20-30% is 2B, between 30-50% Between 1B and 0B above 50%.

[0090] Fullness: In a place with b...

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Abstract

The invention discloses ultraviolet light curing colored paint and a preparation method thereof. The formula of the ultraviolet light curing colored paint comprises the following components in part by weight: 40 to 45 parts of resin, 25 to 30 parts of monomer, 4 to 6 parts of photoinitiator, 20 to 25 parts of diluents, 0.5 to 1 part of levelling agent and 2 to 3 parts of color concentrate. The ultraviolet light curing colored paint can be used for painting home appliances in a single coating spraying mode. Compared with the conventional ultraviolet light curing colored paint, the ultraviolet light curing colored paint has the advantages of greatly reducing paint cost, labor cost and equipment investment and reducing two thirds of environmental pollution caused by a spraying industry. The ultraviolet light curing colored paint has high constructability, good economic benefit and a wide market prospect. A film-forming paint film has excellent qualities of high levelling property, high fullness, high hardness, high color and luster, high scratch resistance, high chemical resistance, high adhesive force to high impact polystyrene and the like. By the ultraviolet light curing colored paint, the gap of the domestic spraying industry is filled.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an ultraviolet light-curable color paint and a preparation method thereof. Background technique [0002] At present, there are several common spraying methods for the coating of household appliances in the world: 1. Use thermoplastic acrylic primer and UV varnish; 2. PU paint (generally use thermoplastic acrylic primer and PU varnish); 3. Thermoplastic acrylic primer Paint; the dominant spraying method is to use thermoplastic acrylic primer plus UV varnish. [0003] Most of the materials used in household appliances are HIPS or HIPS recycled materials, and the physical polarity of this engineering material is relatively low, plus some recycled materials, so the general UV paint has many problems for this kind of engineering. The problem. for example: [0004] (1) General UV resin and other raw materials have no adhesion to HIPS materials at all; [0005] (2) In the case of h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D163/00C09D133/00C09D7/12
Inventor 杨如切裴广亚
Owner HUIZHOU KAIHUI CHEM
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