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Anti-fogging UV (ultraviolet) over-printing varnish for bathroom mirror and preparation method of anti-fogging UV over-printing varnish

A varnish and mirror technology, applied in coatings, polyurea/polyurethane coatings, epoxy resin coatings, etc., can solve the problems of user inconvenience, cumbersomeness, and long-lasting anti-fogging, etc., and achieve improved yellowing resistance Effect of changing sex, increasing durability, and improving durability

Inactive Publication Date: 2022-05-27
SHANGHAI CHANGRUNFA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The mirror in the bathroom will form a layer of water mist on the mirror surface under high humidity conditions such as after taking a bath, which will cause inconvenience to the user
At present, a layer of UV varnish is sprayed on the surface of the mirror to form a low surface tension layer on the surface of the mirror to achieve the "lotus leaf effect" to reduce the formation of water mist on the surface by water vapor. However, the durability of anti-fogging is not good. Long, it needs to be sprayed repeatedly after a period of time, which is more cumbersome

Method used

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  • Anti-fogging UV (ultraviolet) over-printing varnish for bathroom mirror and preparation method of anti-fogging UV over-printing varnish
  • Anti-fogging UV (ultraviolet) over-printing varnish for bathroom mirror and preparation method of anti-fogging UV over-printing varnish
  • Anti-fogging UV (ultraviolet) over-printing varnish for bathroom mirror and preparation method of anti-fogging UV over-printing varnish

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0040] A kind of modified epoxy acrylic resin, it adopts following method to prepare:

[0041] The epoxy acrylic resin is heated to 82° C., triethylamine and phthalic anhydride are added and mixed, stirred for 25 minutes, and cooled to 26° C. to obtain the modified epoxy acrylic resin, wherein the weight ratio of epoxy acrylic resin, triethylamine and phthalic anhydride is is 1:0.028:0.6.

preparation example 2

[0043] A kind of modified epoxy acrylic resin, it adopts following method to prepare:

[0044] Add epoxy acrylic resin to acetone, stir for 30 minutes, then add nano-silica, stir for 15 minutes, heat to 70 ° C, and keep reacting for 4 hours to obtain modified epoxy acrylic resin, wherein acetone, epoxy acrylic resin, nano-dioxide The weight ratio of silica is 6:3:2.

preparation example 3

[0046] A kind of modified nano titanium dioxide, it adopts following method to prepare:

[0047] Put the nano titanium dioxide into absolute ethanol and mix, stir for 12min, ultrasonically disperse for 30min, add dimethyldimethoxysilane, stir for 35min, adjust the pH to 10 with 90% sodium hydroxide solution, at 80 ℃ Condensed and refluxed for 3h under the condition of 100 °C, then centrifuged, washed the solid 4 times, and dried to obtain modified nano-titanium dioxide;

[0048] Wherein, the weight ratio of nano titanium dioxide, anhydrous ethanol and dimethyldimethoxysilane is 1:8:0.3.

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Abstract

The invention relates to the technical field of UV coatings, and particularly discloses anti-fogging UV over-printing varnish for a bathroom mirror and a preparation method of the anti-fogging UV over-printing varnish. The anti-fogging UV finishing varnish for the bathroom mirror is prepared from the following raw materials in percentage by weight: 30 to 50 percent of modified epoxy acrylic resin, 38.5 to 60.9 percent of polyurethane acrylic resin, 5 to 10 percent of multifunctional active monomer, 1 to 2 percent of reaction type organic silicon additive, 1 to 2 percent of silane coupling agent, 0.1 to 0.5 percent of defoaming agent and 2 to 3 percent of photoinitiator. The preparation method comprises the step of uniformly mixing the raw materials. According to the anti-fogging UV over-printing varnish for the bathroom mirror, through the synergistic effect of the raw materials, the anti-fogging UV over-printing varnish has the advantage that the anti-fogging durability is improved.

Description

technical field [0001] The application relates to the technical field of UV coatings, in particular to an anti-fogging UV varnish for bathroom mirrors and a preparation method thereof. Background technique [0002] Overcoat varnish refers to a coating applied on the surface of the article to increase gloss and protect the inner layer. It is made of a resin with good film-forming properties dissolved in a solvent to make a transparent and bright material with certain fluidity and viscosity. UV varnish is one of them, which has the characteristics of high efficiency, energy saving and environmental protection, and has been widely used in the market. [0003] The mirror in the bathroom will form a layer of water mist on the mirror surface under high humidity conditions such as after bathing, which will bring inconvenience to the user. At present, most of them are spraying a layer of UV varnish on the surface of the mirror to form a low surface tension layer on the surface of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C09D7/62
CPCC09D175/14C09D163/10C09D7/62C08K2003/2241C08K2201/011C08L63/10C08L75/14C08K9/06C08K3/22
Inventor 阳辉
Owner SHANGHAI CHANGRUNFA PAINT
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