Aqueous UV primer for tempered glass

A tempered glass, water-based technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve problems that affect the promotion of colorless UV coatings, unstable initiators, and coatings that affect product aesthetics

Inactive Publication Date: 2018-12-07
深圳市前海奇迹新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is the instability of the initiator itself. Some photoinitiators will produce some by-products when they are decomposed by ultraviolet radiation to generate free radicals. The by-products have a quinone structure or a strong rigid conjugated plane, which is easy to absorb Band of sunlight, so that the coating appears yellow
However, the yellowing of the coating seriously affects the aesthetics of the product and affects the promotion of colorless UV coatings.

Method used

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  • Aqueous UV primer for tempered glass
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  • Aqueous UV primer for tempered glass

Examples

Experimental program
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Effect test

preparation example Construction

[0052] Preparation of Surface Modified Nano-SiO2 Containing Double Bonds

[0053] Take 3.0g of nano silicon dioxide and 3.1g of isophorone diisocyanate and disperse in 90mL of anhydrous toluene, disperse in ultrasonic wave for 10min after evacuating and filling with nitrogen, and disperse at 90 o C reacted for 6h. After the reaction is finished, wash with anhydrous toluene, disperse the product in anhydrous toluene and ultrasonically disperse for 10 minutes, then add 1.5 hydroxy butyl acrylate dropwise, and protect with nitrogen for 90 o C reacted for 48h. After the reaction is finished, it is separated by centrifugation, and the physical adsorption on the surface is washed away by using toluene, so as to obtain nano silicon dioxide with surface modification containing double bonds.

[0054] Waterborne urethane acrylate is prepared in the laboratory, and the required raw materials are commercially available. The preparation method is as follows:

[0055] At 40-50°C, add 30...

Embodiment 1

[0057] At 40-50°C, add 30 parts of 1,6-hexamethylene diisocyanate and 20 parts of isophorone diisocyanate, wherein the catalyst is 0.02-0.03% of the total mass of polyethylene glycol monomethyl ether and isocyanate compounds, and then Add 20 parts of glycerin and pentaerythritol tetrakis (3-mercaptopropionic acid) ester (the molar number of isocyanate is similar to the hydroxyl value of alcohol and thiol) at 50-60°C, and continue the reaction until the characteristic absorption peak of NCO measured by Fourier transform infrared transform spectrometer disappears 90% time lost, add 5 parts of benzotriazole derivatives, continue the reaction until the NCO characteristic absorption peak measured by Fourier transform infrared transform spectrometer disappears, and obtain the modified polyurethane acrylate emulsion.

[0058] 30 parts of deionized water, 0.5 parts of nano-silica containing double bonds on the surface, 0.3 parts of acetoisophorone, added to GFJ-0.4 high-speed dispersin...

Embodiment 2

[0061] At 40-50°C, mix 30 parts of toluene diisocyanate and 20 parts of isophorone diisocyanate, wherein the catalyst is 0.02-0.03% of the total mass of polyethylene glycol monomethyl ether and isocyanate compounds, and then at 50-60°C Add 20 parts of polyethylene glycol, pentaerythritol tetrakis (3-mercaptopropionic acid) ester (the molar number of isocyanate is similar to the hydroxyl value of alcohol and mercaptan), and continue to react until the NCO characteristic absorption peak measured by Fourier transform infrared transform spectrometer disappears for 90 % time lost, add 5 parts of benzotriazole derivatives, continue to react until the NCO characteristic absorption peak measured by Fourier transform infrared transform spectrometer disappears, and obtain modified polyurethane acrylate emulsion.

[0062] 30 parts of deionized water, 0.5 parts of nano-silica containing double bonds on the surface, 0.3 parts of acetoisophorone, added to GFJ-0.4 high-speed dispersing machin...

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PUM

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Abstract

The invention discloses aqueous UV primer for tempered glass. The aqueous UV primer contains the following components in parts by weight: 50-70 parts of modified polyurethane acrylate, 10-20 parts ofacrylate, 5-10 parts of hydroxyl acrylic resin, 0.1-1 part of a defoaming agent, 0.2-2 parts of a wetting agent, 0.1-1 part of a flatting agent, 0.1-1 part of an anti-scratching agent, 0.1-1 part of adefoaming agent, 0.5-2 parts of surface-finished nano-silicon dioxide containing double bonds, 1-10 parts of an initiator and 20-40 parts of deionized water. The prepared aqueous UV primer has high flexibility and strength.

Description

technical field [0001] The invention relates to a tempered glass water-based UV primer. Background technique [0002] Ultraviolet Curing Coating (UVCC) is a modern coating with high efficiency, energy saving and environmental protection that adopts ultraviolet curing. The outstanding features are high efficiency, wide adaptability, economy, energy saving and environmental protection. Therefore, light curing technology is known as a green industrial new technology facing the 21st century. Since 1968, German Bayer company first developed light-curing wood coatings, and light-curing technology has realized industrialization. The current UV-curable coatings have achieved great development in the world and have entered a relatively mature stage. [0003] Water-based UV coatings are widely used as exterior paint coatings for surface beautification and protection of metal, wood and glass. In long-term use, it has been found that the surface film formed by water-based UV coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/62
CPCC08K2201/011C09D7/62C09D175/14C08K9/04C08K3/36
Inventor 杨年富
Owner 深圳市前海奇迹新材料有限公司
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