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Scratch-resistant composite UV coating capable of automatically eliminating bubbles and preparation process of scratch-resistant composite UV coating

A technology for eliminating bubbles and preparation process, applied in epoxy resin coatings, coatings, etc., can solve the problems of reduced surface quality, difficult to remove, and bubbles, etc., to reduce surface tension, improve leveling and uniformity, Combining simple effects

Pending Publication Date: 2022-06-28
汕头市紫光光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when using composite UV coatings for spraying, because when spraying composite UV coatings, the articles after spraying tend to have a certain pungent smell, which is easy to cause certain harm to users suffering from respiratory diseases. At the same time, when spraying on the surface of the product, it is easy to generate bubbles, which are not easy to remove, resulting in a decrease in the surface quality of the sprayed product

Method used

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  • Scratch-resistant composite UV coating capable of automatically eliminating bubbles and preparation process of scratch-resistant composite UV coating
  • Scratch-resistant composite UV coating capable of automatically eliminating bubbles and preparation process of scratch-resistant composite UV coating
  • Scratch-resistant composite UV coating capable of automatically eliminating bubbles and preparation process of scratch-resistant composite UV coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The weight ratio of each component is:

[0027]

[0028] a. Accurately weigh 21% of bisphenol A type epoxy acrylate, add an appropriate amount of 36% ethyl acetate to dissolve, mix, and mix evenly;

[0029] b. Accurately weigh 6% of propylene glycidyl ether, add an appropriate amount of 36% of ethyl acetate to dissolve, mix, and mix, and then add to a and stir to form a viscous shape;

[0030] c. Accurately weigh 2% benzoin ether, dissolve it with an appropriate amount of 36% ethyl acetate, add it to b and mix evenly with high-speed stirring for 1.5h until it becomes sticky;

[0031] d. Accurately weigh 2% benzoin ether, dissolve it with an appropriate amount of 36% ethyl acetate, and add it to c, mix and stir evenly;

[0032] e. Add the remaining 36% ethyl acetate into d, stir at a high speed and evenly mix to obtain the coating.

Embodiment 2

[0034] The weight ratio of each component is:

[0035]

[0036] a. Accurately weigh 22% of bisphenol A type epoxy acrylate, add an appropriate amount of 36% of ethyl acetate to dissolve, mix, and mix evenly;

[0037] b. Accurately weigh 7% of propenyl glycidyl ether, add an appropriate amount of 36% of ethyl acetate to dissolve, mix and mix evenly, and add to a and stir to form a viscous shape;

[0038] c. Accurately weigh 3% benzoin ether, dissolve it with an appropriate amount of 36% ethyl acetate, and add it to b and mix evenly with high-speed stirring for 1.5h until it becomes viscous;

[0039] d. Accurately weigh 3% benzoin ether, dissolve it with an appropriate amount of 36% ethyl acetate, and add it to c, mix and stir evenly;

[0040] e. Add the remaining 37% ethyl acetate into d, stir at a high speed and evenly mix to obtain the coating.

Embodiment 3

[0042] The weight ratio of each component is:

[0043]

[0044] a. Accurately weigh 22% of bisphenol A type epoxy acrylate, add an appropriate amount of 36% of ethyl acetate to dissolve, mix, and mix evenly;

[0045] b. Accurately weigh 7% of propenyl glycidyl ether, add an appropriate amount of 36% of ethyl acetate to dissolve, mix and mix evenly, and add to a and stir to form a viscous shape;

[0046] c. Accurately weigh 3% benzoin ether, dissolve it with an appropriate amount of 36% ethyl acetate, and add it to b and mix evenly with high-speed stirring for 1.5h until it becomes viscous;

[0047] d. Accurately weigh 3% benzoin ether, dissolve it with an appropriate amount of 36% ethyl acetate, and add it to c, mix and stir evenly;

[0048] e. Add the remaining 37% ethyl acetate into d, stir at a high speed and evenly mix to obtain the coating.

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Abstract

The invention discloses a scratch-resistant composite UV coating capable of automatically eliminating bubbles and a preparation process thereof, and relates to the technical field of UV curing coatings, the scratch-resistant composite UV coating capable of automatically eliminating bubbles is prepared from the following components by weight: 20-30% of light-cured resin, 5-10% of an active diluent, 5-10% of an oligomer, 5-10% of a photoinitiator, 5-10% of an auxiliary agent and the balance of a solvent. 1-5% of a photoinitiator, 1-3% of an auxiliary agent, and 35-55% of a solvent. In the spraying process of the coating, bubbles on the surface of a sprayed object are greatly reduced, the coating can be promoted to form a flat, smooth and uniform coating film in the drying and film forming process, the surface tension of the coating liquid can be effectively reduced, the leveling property and the uniformity of the coating liquid are improved, and the coating quality is improved. Through mutual mixing of the photoinitiator and the reactive diluent, the coating is free of solvent odor and low in volatility, meanwhile, the photoinitiator is low in price, simple to synthesize and convenient for large-scale production, and the photoinitiator and a photocracking product thereof are non-toxic, odorless, good in stability and convenient for long-time storage.

Description

technical field [0001] The invention relates to the technical field of UV curing coatings, in particular to a scratch-resistant composite UV coating that can automatically eliminate bubbles and a preparation process thereof. Background technique [0002] UV coatings refer to coatings cured by UV radiation. UV curing coatings can be applied to ink printing and exposed to UV radiation. Its solid content can be as high as 100%, so there is no volatile component and does not pollute the environment. Applied to very thin film, UV-curable coatings can also be used to coat glass and plastic, wood, aluminum beverage bottles, etc. Generally, the thickness of the paint layer is generally tens of microns to hundreds of microns, while the thickness of UV paint is only From a few microns (black) to 15 microns (white), a composition such as UV paint lays the foundation for the preparation of UV inks. In addition, the basic composition of UV adhesives is also similar to UV coatings. [00...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D7/47C09D7/63C09D7/42C09D7/20
CPCC09D163/10C09D7/47C09D7/63C09D7/42C09D7/20C08L83/04C08K5/10
Inventor 黄天宇
Owner 汕头市紫光光电科技有限公司
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