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High-weather-resistant UV (ultraviolet) coating for decorative plate and preparation method of high-weather-resistant UV coating

A technology of weather-resistant coatings and decorative panels, which is applied in coatings and other directions, can solve the problems of slow curing speed of fluorocarbon coatings, unsatisfactory weather resistance, and low coating efficiency of coatings. , Guarantee the effect of color fastness

Inactive Publication Date: 2016-02-17
HUNAN BANFERT NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are three types of coatings used for the coating surface of outdoor decorative panels: one is to use water-in-water water-based coatings, which have good decorative effects, but the coatings have low coating efficiency, poor weather resistance, poor water resistance, If the water coating is finished with solvent-based coatings, although the weather resistance is improved, the VOC emission is high; the second is to use a two-component fluorocarbon coating cured at room temperature, which generally has good weather resistance, but the fluorocarbon coating has a slow curing speed. , high solvent content, inconvenient construction and other shortcomings, high VOC emissions; the third is to choose a light-cured fluorocarbon coating, which has high production efficiency and good weather resistance in theory, but after coating inspection, it is quite different from the expected result , the weather resistance does not meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1, the present invention includes the following components and raw materials in mass ratio: 50 parts of oligomer, 10 parts of thermoplastic acrylic resin, 39 parts of acrylic monomer, 0.2 part of substrate wetting and dispersing agent, 0.3 part of defoamer, trigger 3.4 parts of agent, 0.1 part of leveling agent, 2 parts of light stabilizer pigment. In this embodiment, what is obtained is a UV high weather resistance coating for decorative boards. Oligomers are blended from aliphatic epoxy acrylate resins and aliphatic urethane acrylate resins. The thermoplastic acrylic resin is B44. Acrylate monomers are preferably 1,6-hexanediol diacrylate, pentaerythritol triacrylate, and acrylate UV monomers in other embodiments can also be replaced by other models that can achieve the same effect, and are not easily hydrolyzed after film formation. Good acid and alkali resistance, little impact on coating performance, etc., so that the overall performance is improved. The...

Embodiment 2

[0044]Embodiment 2, the present invention includes the following components and raw materials in mass ratio: 30 parts of oligomers, 5 parts of thermoplastic acrylic resins, 35 parts of acrylate monomers, 1.5 parts of dispersants, 0.3 parts of defoamers, 3.5 parts of initiators, 10 parts of matting powder, 0.2 parts of substrate wetting agent, 8 parts of filler, 3 parts of anti-settling agent, 3.5 parts of light stabilizer. In this embodiment, what is obtained is a special UV matte high weather resistance coating for outdoor decorative boards. Oligomers are blended from aliphatic epoxy acrylate resins and aliphatic urethane acrylate resins. The thermoplastic acrylic resin is B44. Acrylate monomers are preferably 1,6-hexanediol diacrylate and trimethylolpropane triacrylate. In other embodiments, acrylate UV monomers can also be replaced by other models that can achieve the same effect, and the dilution is good , It is not easy to be hydrolyzed after the film is formed, has goo...

Embodiment 3

[0053] Embodiment 3, the present invention includes the following components and raw materials in mass ratio: 25 parts of oligomers, 5 parts of thermoplastic acrylic resins, 30 parts of acrylate monomers, 2 parts of wetting and dispersing agents, 0.2 parts of defoamers, initiators 3 parts, 0.2 parts of substrate wetting agent, 30 parts of rutile titanium dioxide, 2.6 parts of anti-settling agent, and 2.0 parts of light stabilizer. In this embodiment, what is obtained is a special UV white high weather resistance coating for outdoor decorative boards. Oligomers are blended from aliphatic epoxy acrylate resins and aliphatic urethane acrylate resins. The thermoplastic acrylic resin is B44. Acrylate monomers are preferably 1,6 hexanediol diacrylate, trimethylolpropane triacrylate, neopentyl glycol diacrylate. In other embodiments, acrylate UV monomers can also be used to achieve the same effect. Replaced by other models, good dilution, not easy to be hydrolyzed after film format...

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Abstract

The invention discloses a high-weather-resistant UV (ultraviolet) coating for a decorative plate and a preparation method of the high-weather-resistant UV coating. The coating is characterized by comprising, in parts by mass, 30-60 parts of an oligomer, 5-10 parts of thermoplastic acrylic resin, 15-50 parts of acrylate monomers, 3-6 parts of a photoinitiator, 0-30 parts of pigment, 0-10 parts of filler and 3-20 parts of an auxiliary agent. The invention further comprises the preparation method. The coating has the advantages that the decorative effect is good, the hardness of the coating is higher than 2H, the wear resistance is good, a coating film does not change in the extreme environment with the temperature ranging from subzero 40 DEG C to 60 DEG C and passes a 2000-hour salt fog resistance test, Q-Sun detection shows that the weather resistance of the coating can maintain 4,000 h, the production efficiency is high, few VOCs (volatile organic compounds) are discharged, little pollution is caused, the cost is low and the like.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a UV high-weather-resistant coating for decorative boards and a preparation method thereof. Background technique [0002] At present, there are three types of coatings used for the coating surface of outdoor decorative panels: one is to use water-in-water water-based coatings, which have good decorative effects, but the coatings have low coating efficiency, poor weather resistance, poor water resistance, If the water coating is finished with solvent-based coatings, although the weather resistance is improved, the VOC emission is high; the second is to use a two-component fluorocarbon coating cured at room temperature, which generally has good weather resistance, but the fluorocarbon coating has a slow curing speed. , high solvent content, inconvenient construction and other shortcomings, high VOC emissions; the third is to choose a light-cured fluorocarbon coating, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D7/12
Inventor 李新雄周利李冬才皮勇张冬明
Owner HUNAN BANFERT NEW MATERIALS TECH
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