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UV (Ultraviolet) curable coating as well as preparation method and application thereof

A curing coating, polyurethane acrylic technology, applied in the field of coatings, can solve the problems of high hardness, easy to break when bending, achieve low odor, less environmental hazards, improve flexibility and bending resistance

Active Publication Date: 2017-07-18
深圳市美丽华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the high hardness of the existing UV coatings, the disadvantages of being easy to break due to bending are inconsistent with the characteristics of the current ultra-thin products with thin materials and narrow sides of the middle frame, so the existing technology needs to be improved and developed.

Method used

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  • UV (Ultraviolet) curable coating as well as preparation method and application thereof
  • UV (Ultraviolet) curable coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]A kind of UV curable coating, it is made up of following components according to weight percentage:

[0040] High functional urethane acrylate 35%; Trifunctional urethane acrylate resin 10%; Difunctional urethane acrylate resin 20%; Trimethylolpropane triacrylate 3%; Photosensitizer 3.5%; Silicone additive 6.5%; Solvent 22% .

[0041] The TG point of the high-functional polyurethane acrylate is 69, the molecular weight is 1000, the viscosity is 2000mpa.s / 60°C, and the elongation is 2%; the viscosity of the trifunctional polyurethane acrylate resin is 4500mpa.s / 60°C, The ratio is 37%; the viscosity of the difunctional polyurethane acrylic resin is 9000mpa.s / 60°C, and the molecular weight is 1000; the acid value (KOH / g) of the trimethylolpropane triacrylate is 0.2mg, and the refractive index is 1.47 nD, the surface tension is 35dyne / cm; the photosensitizer is 1-hydroxy-cyclohexylbenzophenone.

[0042] The above-mentioned components are added into the container according ...

Embodiment 2

[0044] A kind of UV curable coating, it is made up of following components according to weight percentage:

[0045] High functional urethane acrylate 35%; Trifunctional urethane acrylate resin 20%; Difunctional urethane acrylate resin 10%; Trimethylolpropane triacrylate 3%; Photosensitizer 3.5%; Silicone additive 6.5%; Solvent 22% .

[0046] The concrete selection of each component is with embodiment 1.

[0047] The above-mentioned components are added into the container according to the weight percentage, and mixed uniformly under the condition of stirring to obtain the UV curable coating.

Embodiment 3

[0049] A kind of UV curable coating, it is made up of following components according to weight percentage:

[0050] High functional urethane acrylate 40%; trifunctional urethane acrylic resin 10%; difunctional urethane acrylic resin 20%; trimethylolpropane triacrylate 5%; photosensitizer 3.5%; silicone additive 6.5%; solvent 15% .

[0051] The concrete selection of each component is with embodiment 1.

[0052] The above-mentioned components are added into the container according to the weight percentage, and mixed uniformly under the condition of stirring to obtain the UV curable coating.

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Abstract

The invention relates to a UV (Ultraviolet) curable coating as well as a preparation method and application thereof. The UV curable coating is prepared from the following components in percentage by weight: 30 to 40 percent of high-functionality polyurethane acrylate, 10 to 20 percent of trifunctional polyurethane acrylate, 10 to 20 percent of bifunctional polyurethane acrylate, 3 to 5 percent of trimethylolpropane triacrylate, 2 to 4 percent of photosensitizer and 10 to 15 percent of solvent. The UV curable coating disclosed by the invention is sprayed on the surface of single-fluid type colored paint, is used for glazing the single-fluid type colored paint surface, and can form a layer of tough coating film on the single-fluid type colored paint surface; the UV curable coating has the characteristics of good adhesion, good flexibility and good bending resistance for the single-fluid type colored paint and has no influence on the single-fluid type colored paint; a product is enabled not to be easy to bend and burst in the use process.

Description

technical field [0001] The invention relates to the field of paints, in particular to a UV curable paint and its preparation method and application, in particular to a highly flexible bending-resistant UV curable paint used on the surface of a single-liquid color paint and its preparation method and application. Background technique [0002] At present, single liquid color paint + UV curing top coat has become a common effect in the mobile phone manufacturing industry. Usually, the processing technology of mobile phone shell is: raw material→injection molding→cleaning→spraying single liquid color paint→spraying UV curing topcoat→packaging. The main purpose of spraying is to make an exquisite appearance on the surface of the material, make up for the surface defects of the material, and at the same time play a certain protective role and enhance the aesthetics and practicability of the mobile phone. But not all coatings can play a good protective role. For example, mobile ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14
CPCC08L2201/22C08L2205/025C08L2205/035C09D175/14C08L75/14
Inventor 鲁春风
Owner 深圳市美丽华科技股份有限公司
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