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Surfactant capable of realizing radiation curing of waterborne fluorinated polyurethane acrylate as well as preparation method and application of surfactant

A polyurethane acrylate and surfactant technology, which is applied in the field of radiation-curable water-based fluorine-containing polyurethane acrylate surfactants and its preparation, can solve the problems of easy migration and precipitation of surfactants, high surface tension, and influence on adhesion , to achieve the effects of good system compatibility, good water resistance and good adhesion

Active Publication Date: 2018-05-29
广州五行材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface tension of water is high, and the paint film is not easy to spread on the surface of plastic, metal, wood and other substrates. The surface tension helps it to wet the substrate to obtain a paint film with good leveling effect and good adhesion
[0003] At present, the existing products are generally developed to support the traditional water-based resin system. Surfactants such as fluorosilicon leveling and wetting cannot participate in UV radiation curing and crosslinking. Surfactants are easy to migrate and precipitate, affecting the final performance of the paint film and affecting health and the environment. are more dangerous

Method used

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  • Surfactant capable of realizing radiation curing of waterborne fluorinated polyurethane acrylate as well as preparation method and application of surfactant
  • Surfactant capable of realizing radiation curing of waterborne fluorinated polyurethane acrylate as well as preparation method and application of surfactant

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Experimental program
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Effect test

Embodiment 1

[0027] The preparation of embodiment 1 isophorone diisocyanate-trimethylolpropane adduct

[0028] Add 66.6g of isophorone diisocyanate and 20g of propylene glycol methyl ether acetate (moisture content is less than 0.3‰) into a reaction kettle equipped with a thermometer, condenser and stirrer, stir evenly, protect with nitrogen, and then add trihydroxy Methylpropane 13.4g, dibutyltin dilaurate 0.02g, slowly heat up to 80°C, react for 2 hours, use toluene-di-n-butylamine titration method to measure the remaining isocyanate content every half hour, stop the reaction when it reaches the theoretical value , to obtain the isophorone diisocyanate-trimethylolpropane adduct.

Embodiment 2

[0029] The preparation of embodiment 2 toluene diisocyanate-trimethylolpropane adduct

[0030] Add 52.6g of 2,4-toluene diisocyanate and 16.5g of propylene glycol methyl ether acetate (moisture content is less than 0.3‰) into a reaction kettle equipped with a thermometer, condenser and stirrer, stir evenly, protect with nitrogen, and then add Trimethylolpropane 13.4g, dibutyltin dilaurate 0.02g, slowly heat up to 80°C, after 2 hours of reaction, use the toluene-di-n-butylamine titration method to measure the remaining isocyanate content every half hour, when it reaches the theoretical value The reaction is stopped, and the toluene diisocyanate-trimethylolpropane adduct is obtained by discharging.

Embodiment 3 6

[0031] Embodiment 3 Preparation of hexamethylene diisocyanate-trimethylolpropane adduct

[0032] Add 50.6g of hexamethylene diisocyanate and 16g of propylene glycol methyl ether acetate (moisture content is less than 0.3‰) into a reaction kettle equipped with a thermometer, condenser and stirrer, stir evenly, protect with nitrogen, and then add trihydroxy Methylpropane 13.4g, dibutyltin dilaurate 0.02g, slowly heat up to 80°C, react for 2 hours, use toluene-di-n-butylamine titration method to measure the remaining isocyanate content every half hour, stop the reaction when it reaches the theoretical value , to obtain hexamethylene diisocyanate-trimethylolpropane adduct.

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Abstract

The invention belongs to the technical field of polymer polymerization and discloses a surfactant capable of realizing radiation curing of waterborne fluorinated polyurethane acrylate as well as a preparation method and application of the surfactant. The surfactant comprises the following raw materials in parts by weight: 10-45 parts of monomethoxy polyethylene glycol and / or polyethylene glycol-polypropylene glycol mono-butyl ether, 3-20 parts of perfluoroalkyl alcohol, 45-75 parts of polyisocyanate-trimethylolpropane adduct and 2-15 parts of acrylic acid hydroxyalkyl ester, wherein the polyisocyanate-trimethylolpropane adduct is synthesized by polyisocyanate and trimethylolpropane. The surfactant capable of realizing radiation curing of the waterborne fluorinated polyurethane acrylate canbe applied in waterborne UV (ultraviolet) cured resin system and is good in compatibility with the system, the surface tension of the system can be rapidly reduced, the surface leveling can be promoted, and an effect of a mirror surface leveling film is achieved.

Description

technical field [0001] The invention belongs to the technical field of polymer polymerization, and more specifically relates to a radiation-curable water-based fluorine-containing polyurethane acrylate surfactant and a preparation method and application thereof. Background technique [0002] Due to the needs of environmental protection, relevant national environmental protection laws and regulations have been promulgated one after another, and it is imperative for the paint industry to change oil to water; water-based UV resin uses water as the medium and adopts UV curing to form a film. Compared with solvent-based resin systems, it is more environmentally friendly and efficient. The advantages of high efficiency and low cost have attracted more and more attention from the coatings industry. However, the surface tension of water is high, and the paint film is not easy to spread on the surface of plastic, metal, wood and other substrates. The surface tension helps it wet the...

Claims

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Application Information

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IPC IPC(8): C08G18/79C08G18/67C08G18/66C08G18/48C08G18/09C08G18/30C09D7/65
CPCC08G18/092C08G18/2835C08G18/2885C08G18/672C08G18/673C08G18/792C08G18/794C08G2115/02
Inventor 曾雪标罗龙李宇荣杨德彬贾国忠
Owner 广州五行材料科技有限公司
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