Two-coating type ultraviolet light curing paint

A technology of curing coatings and ultraviolet light, which is applied in the direction of polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., and can solve the problems of low wear resistance and steel wool friction resistance, high cost, and single types of vacuum coatings. , to achieve excellent wear resistance and steel wool friction resistance, excellent bonding force, and reduce production costs

Active Publication Date: 2013-01-30
HUNAN SOKAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a two-coat type UV-curable paint to solve the technical problems of the existing UV-curable paint with low wear resistance and steel wool friction resistance, single type of vacuum coating, and high cost.

Method used

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  • Two-coating type ultraviolet light curing paint
  • Two-coating type ultraviolet light curing paint
  • Two-coating type ultraviolet light curing paint

Examples

Experimental program
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Effect test

Embodiment 1~6

[0045] The coating curing method of embodiment 1~6 top paint, middle paint and primer:

[0046] a) Spray the UV-curable primers in Examples 1 to 6 on the PC substrate after the pretreatment step, the coating film thickness is 20 μm, and the leveling is 7 minutes under the irradiation of infrared lamp at 50 ° C, 800 mJ / cm 2 energy curing;

[0047] b) followed by vacuum coating or optical coating;

[0048] c) Spray the UV-curable topcoat in Examples 1 to 6 on the vacuum coating, the thickness of the coating film is 15 μm, and the leveling is 7 minutes under the irradiation of an infrared lamp at 60 ° C, 1100 mJ / cm 2 Energy hardened.

[0049] In embodiment 1~6, the pretreatment steps of UV-curable primer are:

[0050] a) Preheat the resin containing acrylic acid groups in the UV-curable primers of Examples 1-6 at 40-50°C for 1-2 hours, and dissolve it with 2 / 3 volume of diluent to obtain the first solution;

[0051] b) Add acrylic monomers, photoinitiators, adhesion promoting...

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Abstract

The invention provides two-coating type ultraviolet light curing paint, which comprises primer and finish paint, wherein the finish paint comprises 15 to 25 weight parts of high-functionality polyurethane crylic acid resign, 10 to 15 weight parts of hyperbranched polyester acrylic resin, 10 to 20 weight parts of organic-inorganic hybrid resin, 10 to 15 weight parts of hexa-functionality acrylate monomers, 2 to 5 weight parts of photoinitiators, 1 to 2 weight parts of adhesion promoters, 20 to 60 weight parts of diluents and 0.2 to 2 weight parts of auxiliaries. The two-coating type ultraviolet light curing paint solves the technical problems that the wear-resisting and steel wool friction resistance degrade of the existing ultraviolet light curing paint is low, the vacuum coating variety is single, and the cost is high.

Description

technical field [0001] The invention relates to the field of ultraviolet light curing paint, in particular to a two-coat type ultraviolet light curing paint. Background technique [0002] In order to make the vacuum-coated coating smooth and have metallic luster and brightness, it is necessary to paint the surface to be coated before and after coating. The commonly used paint is UV-curable paint. With the popularity of UV-curable paints, people's requirements for anti-scratch and wear-resistant properties are increasing day by day, and there is an urgent need for UV-curable paints with higher wear-resistant properties, especially excellent steel wool scratch resistance. Existing UV-curable paints are divided into two-coat UV-curable paints and three-coat UV-curable paints. Two-coat UV-curable paints include a topcoat and a primer. Since the topcoat is directly coated on the surface of the coating, The bonding force with the coating is poor, the topcoat is easy to fall off d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D167/06C09D163/10C09D7/12
Inventor 缪培凯
Owner HUNAN SOKAN NEW MATERIAL
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