Ultraviolet curing polyurethane acrylate coating and preparation method thereof

A technology of urethane acrylate and ultraviolet light, which is applied in the field of coatings, can solve the problems of poor hydrophobicity and oil-resistant pen performance, decreased paint film resistance to staining and stain resistance, and easy damage to the surface of the layer, so as to achieve wear resistance Good, stain resistance is not easy to decay, long-lasting effect of oil stain resistance

Inactive Publication Date: 2021-06-22
天津中晶建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The traditional solution to improve the stain resistance of the paint film is to use fluorine-containing additives or add inorganic nanoparticles in the coating preparation process to improve the stain resistance effect after film formation, but this method is only a short-term effect, and the stain resistance is durable. It is relatively poor, mainly in the following two points: on the one hand, under high temperature and high humidity conditions, the surface of the coating is easily damaged, and the fluorine-containing additives are easy to migrate, resulting in no lasting resistance to staining and staining; on the other hand, if this coating is applied On the floor paint, under the environment of long-term friction, the fluorine-containing additives are easy to fall off, resulting in a significant decline in the stain resistance and stain resistance of the paint film, and the performance of hydrophobicity and oil resistance.

Method used

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  • Ultraviolet curing polyurethane acrylate coating and preparation method thereof

Examples

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Embodiment 1

[0023] This embodiment provides a UV-curable urethane acrylate coating. The raw material components include: 30 parts of urethane acrylate prepolymer A, 15 parts of urethane acrylate prepolymer B, silicon-fluorine modified UV-curable polyurethane 20 parts of prepolymer, 10 parts of trimethylolpropane triacrylate, 5 parts of polydipentaerythritol hexaacrylate, 15 parts of isobornyl acrylate, 4 parts of photoinitiator, and 1 part of leveling aid.

[0024] The urethane acrylate prepolymer A used in this example is a 2-functionality resin, purchased from NeoRad U-25-20D of DSM; the urethane acrylate prepolymer B is an 8-functionality resin, purchased from DSM AgiSyn242 from Siman Company; silicon-fluorine modified UV-curable polyurethane prepolymer was purchased from L6905A of Guangdong Lanke Road Company; photoinitiator was purchased from Tianjin Jiuri New Material Company 184; leveling aid was purchased from Gram's BYK-333.

[0025] According to the preparation method provided ...

Embodiment 2

[0032]This embodiment provides a UV-curable urethane acrylate coating. The raw material components include: 26 parts of urethane acrylate prepolymer A, 19 parts of urethane acrylate prepolymer B, silicon-fluorine modified UV-curable polyurethane 25 parts of prepolymer, 10 parts of trimethylolpropane triacrylate, 5 parts of polydipentaerythritol hexaacrylate, 10 parts of isobornyl acrylate, 4 parts of photoinitiator, and 1 part of leveling aid.

[0033] The urethane acrylate prepolymer A used in this example is a 2-functional resin purchased from NeoRad U-25-20D of DSM; the urethane acrylate prepolymer B is an 8-functional resin purchased from Guangdong B-912 from Boxing New Material Company; UV-curable polyurethane prepolymer modified by silicon and fluorine was purchased from L6905C from Guangdong Lankelu Company; photoinitiator was 184 purchased from Tianjin Jiuri New Material Company; leveling aid It is BYK-333 purchased from BAK Corporation.

[0034] According to the prep...

Embodiment 3

[0041] This embodiment provides a UV-curable urethane acrylate coating. The raw material components include: 35 parts of urethane acrylate prepolymer A, 15 parts of urethane acrylate prepolymer B, silicon-fluorine modified UV-curable polyurethane 15 parts of prepolymer, 10 parts of trimethylolpropane triacrylate, 5 parts of polydipentaerythritol hexaacrylate, 15 parts of isobornyl acrylate, 4 parts of photoinitiator, and 1 part of leveling aid.

[0042] The urethane acrylate prepolymer A used in this example is a 2-functional resin purchased from NeoRad U6282 of DSM; the urethane acrylate prepolymer B is an 8-functional resin purchased from DSM AgiSyn2421; silicon-fluorine modified UV-curable polyurethane prepolymer was purchased from Guangdong Lanke Road Company L6905E; photoinitiator was purchased from Tianjin Jiuri New Material Company 184; leveling agent was purchased from BAK company BYK -333.

[0043] According to the preparation method provided by the present invention...

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Abstract

The invention relates to an ultraviolet curing polyurethane acrylate coating and a preparation method thereof. The ultraviolet-cured polyurethane acrylate coating provided by the invention is prepared from the following raw material components in parts by weight: 20-35 parts of polyurethane acrylate prepolymer A, 15-30 parts of polyurethane acrylate prepolymer B, 15-30 parts of silicon-fluorine modified ultraviolet-cured polyurethane prepolymer, 5-10 parts of trimethylolpropane triacrylate, 5-10 parts of polydipentaerythritol hexaacrylate, 10-15 parts of isobornyl acrylate, 2-5 parts of a photoinitiator and 0.1-1 part of a leveling agent. The ultraviolet curing polyurethane acrylate coating provided by the invention has the advantages of high hardness, good wear resistance, high scratch resistance, lasting oil stain resistance, oil marking pen resistance, water marking pen resistance, good acid and alkali resistance, high transparency and burning resistance.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an ultraviolet light curing polyurethane acrylate coating and a preparation method thereof. Background technique [0002] Photocuring coatings are liquid formulations added with photoinitiators irradiated by a light source of a certain intensity. The photoinitiators absorb light quanta to generate active groups to initiate polymerization reactions, and instantly transform the liquid resin into a solid film. Compared with traditional natural drying or heat-curing coatings, the rapid development of photo-curing coatings is due to the characteristics of photo-curing technology itself. First, light curing only needs to be carried out at room temperature, which can satisfy the construction of products that are not suitable for heating and drying methods. Second, in addition to improving productivity and saving energy consumption, light curing technology can also enable c...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D135/02C09D5/18
CPCC08L2201/02C08L2201/10C08L2205/025C08L2205/035C09D5/18C09D175/14C08L75/14C08L35/02
Inventor张景明于海伦方秀莲侯伟
Owner天津中晶建筑材料有限公司