Ultraviolet light-cured self-cleaning coating, and preparation method and application thereof

A technology of ultraviolet light and photocatalytic materials, applied in the field of ultraviolet light curing self-cleaning paint and its preparation, can solve the problems of insufficient self-cleaning ability, pollution of exterior wall finishes, affecting the aesthetics and durability of buildings, etc., and achieve self-cleaning Good performance, good scratch resistance, small production site

Inactive Publication Date: 2013-04-24
ZHUHAI DONGCHENG UV MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Coating resistance to staining and insufficient self-cleaning ability are common problems in decorative coatings, and they are also prominent technical problems that restrict the promotion and application of coatings in my country, especially the contamination of exterior wall finishes, which greatly affects the aesthetics and durability of buildings. Therefore, people have always expected to develop self-cleaning coatings that are not easy to adhere to pollution or allow the attached pollutants to be removed by external natural conditions such as rain, wind, light, etc.

Method used

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  • Ultraviolet light-cured self-cleaning coating, and preparation method and application thereof
  • Ultraviolet light-cured self-cleaning coating, and preparation method and application thereof
  • Ultraviolet light-cured self-cleaning coating, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) The pure acrylate copolymer of 30wt% of the total system, 50wt% of polyurethane methacrylate, 5wt% of isooctyl acrylate, 5wt% of ethyl methacrylate and 2wt% of 2-hydroxyl-2 - Mix methyl-1-phenyl-1-propanone and 1.5wt% 2,4,6-trimethylbenzoyldiphenylphosphine oxide photoinitiator, heat up to 50-60°C, and stir to obtain a mixture ;

[0041] (2) Add DEUCHEM 2700 and 0.3wt% BYK 358 accounting for 0.2wt% of the total system to the system of step (1), stir, then add the compound (nanoparticle titanium dioxide and silicon oxide) accounting for 6wt% of the total system The weight ratio of particle titanium dioxide to silicon oxide is 9:1), and the mixture is fully stirred until completely dissolved, dispersed, ground, and filtered to obtain a UV-curable high-gloss self-cleaning coating.

[0042]

[0043]

Embodiment 2

[0045] (1) The fluorine-containing polyurethane methacrylate of 50wt% of the total system, the fluorine-containing epoxy acrylate of 30wt%, the DPGDA of 5wt%, the TMPTA of 5wt% and the 2,4,6-trimethyl Mix the benzoyl diphenylphosphine oxide photoinitiator, heat up to 50-60°C, and stir evenly to obtain the mixture;

[0046] (2) Add 0.5wt% of Disperbyk 163, 1.2wt% of DEUCHEM 055 and 1.3wt% of BYK306 to the system of step (1), and stir until completely dissolved;

[0047] (3) Add 2wt% matting powder SY7000 and 1wt% nano-titanium dioxide to the system in step (2), stir, disperse, grind, and filter to obtain a UV-curable matte self-cleaning fluorocarbon coating.

[0048]

Embodiment 3

[0050] (1) The fluorine-containing acrylic copolymer accounting for 10wt% of the total system, the fluorine-containing polyester methacrylate of 4wt%, the fluorine-containing aminoacrylate of 10wt%, the TPGDA of 8wt%, the EO-TMPTA of 8wt%, 10wt% % dodecafluoroheptyl acrylate and 3wt% 2,4,6-trimethylbenzoyl diphenyl phosphine oxide, 2wt% 2-isopropylthioxanthone photoinitiator mix, warming up to 50 ~60°C, stir evenly to obtain a mixture;

[0051] (2) Add 1wt% of Disperbyk 163, 1wt% of BYK 055, and 1wt% of BYK306 to the system in step (1), and stir until completely dissolved;

[0052] (3) Add 12wt% talcum powder, 18wt% titanium dioxide, 10wt% phthalocyanine blue, 2wt% nano titanium dioxide to the system of step (2), stir, disperse, grind, filter, Obtained UV-curable blue self-cleaning fluorocarbon coating.

[0053]

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Abstract

The invention belongs to the field of coatings, and relates to an ultraviolet light-cured self-cleaning coating, and a preparation method and an application thereof. The self-cleaning coating is obtained by mixing 30-80 wt% of a reactive fluorine-containing acrylic ester prepolymer, a acrylic ester prepolymer or a mixture of the above two 10-60 wt% of reactive fluorine-containing acrylic ester monomers, acrylic ester monomers or a mixture of the above two, 2-10 wt% of a photoinitiator, 0-40 wt% of a pigment, 0-30 wt% of an auxiliary agent and 1-30 wt% of a photocatalytic material, based on the total amount of the ultraviolet light-cured self-cleaning coating, grinding and stirring uniformly. The coating is coated on the surface of a substrate. The coated film can produce a photochemical polymerization and is cured under the irradiation of ultraviolet light. The cured film has the advantages of plump film, abundant colors, high hardness, good scratch resistance, good weather resistance and stain resistance, good self-cleaning feature and the like.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to an ultraviolet curing self-cleaning coating for protection and decoration requiring self-cleaning function and its preparation method and application. Background technique [0002] At present, UV-cured decorative coatings are rich in color, flexible and diverse in finishes, can express colorful styles, easy to construct, efficient and fast, safe and reliable, and are becoming the leading decorative finishing materials in my country, especially in the country's vigorously advocated promotion. Application on exterior wall finishing materials. my country is currently in the peak period of urbanization construction, and high-quality exterior wall coatings have broad demand space and development potential. The implementation of housing industrialization and building energy conservation has also played a huge role in promoting the promotion and application of exterior wall coatings....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C09D167/06C09D7/12
Inventor 陈伟谭昊涯
Owner ZHUHAI DONGCHENG UV MATERIALS
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