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Organosilicon-modified waterborne epoxy acrylate UV-curable coating, and preparation and application thereof

An epoxy acrylate and curing coating technology, which is applied in the field of coatings, can solve problems such as poor water resistance, and achieve the effects of easy construction, wide application prospects, and good stability

Active Publication Date: 2020-06-30
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention also aims at the problem of poor water resistance of water-based epoxy acrylic resin, and adds organosilicon sol for physical compounding, thereby preparing a water-based light-curing coating with excellent heat resistance, mechanical properties, wear resistance and chemical stability. , can be widely used in heat-sensitive substrates, home decoration wood, advertising lights, electronic packaging materials and other fields

Method used

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  • Organosilicon-modified waterborne epoxy acrylate UV-curable coating, and preparation and application thereof
  • Organosilicon-modified waterborne epoxy acrylate UV-curable coating, and preparation and application thereof
  • Organosilicon-modified waterborne epoxy acrylate UV-curable coating, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045](1) Preparation of epoxy acrylate resin: add 100 parts by mass of bisphenol A type epoxy resin (epoxy value 0.51) into the reactor equipped with reflux condenser, dropping funnel, thermometer and stirrer, heat and stir to 80°C, then add 2 parts by mass of tetrabutylammonium bromide, 0.8 parts by mass of hydroquinone and 50 parts by mass of acrylic acid, raise the temperature to 110°C, and react for 4 hours to obtain an epoxy acrylate resin.

[0046] (2) Preparation of functionalized epoxy acrylate: Add 60 parts by mass of isobutenol polyoxyethylene ether, 5 parts by mass of maleic anhydride and 80 parts by mass of 1,4-dioxane into a three-necked flask, and heat up to 90°C , reacted for 8 hours; then added 10 parts by mass of epoxy acrylate, added 1 part by mass of tetrabutylammonium bromide as a catalyst and reacted for 8 hours, and finally removed the solvent to obtain functionalized epoxy acrylate. FT-IR (Bruker TENSOR27 (Germany) Fourier transform infrared spectromete...

Embodiment 2

[0051] (1) Preparation of epoxy acrylate resin: add 100 parts by mass of bisphenol A type epoxy resin (epoxy value 0.51) into the reactor equipped with reflux condenser, dropping funnel, thermometer and stirrer, heat and stir to 80°C, then add 1 part by mass of tetrabutylammonium bromide, 0.5 parts by mass of hydroquinone and 40 parts by mass of acrylic acid, raise the temperature to 120°C, and react for 5 hours to obtain an epoxy acrylate resin.

[0052] (2) Preparation of functionalized epoxy acrylate: Add 50 parts by mass of isobutylene alcohol polyoxyethylene ether, 7 parts by mass of maleic anhydride and 90 parts by mass of 1,4-dioxane into a three-necked flask, and heat up to 90°C , reacted for 6 hours; then added 15 parts by mass of epoxy acrylate, added 2 parts by mass of tetrabutylammonium bromide as a catalyst and reacted for 7 hours, and finally removed the solvent to obtain functionalized epoxy acrylate. FT-IR (Bruker TENSOR27 (Germany) Fourier transform infrared s...

Embodiment 3

[0057] (1) Preparation of epoxy acrylate resin: add 100 parts by mass of bisphenol A type epoxy resin (epoxy value 0.85) into the reactor equipped with reflux condenser, dropping funnel, thermometer and stirrer, heat and stir to 80°C, then add 2 parts by mass of tetrabutylammonium bromide, 0.8 parts by mass of hydroquinone and 50 parts by mass of acrylic acid, raise the temperature to 110°C, and react for 4 hours to obtain an epoxy acrylate resin.

[0058] (2) Preparation of functionalized epoxy acrylate: Add 60 parts by mass of allyl polyoxyethylene ether, 5 parts by mass of maleic anhydride and 80 parts by mass of 1,4-dioxane in a three-necked flask, and heat up to 90 °C, react for 8 hours; then add 12 parts by mass of epoxy acrylate, add 1 part by mass of tetrabutylammonium bromide as a catalyst and react for 8 hours, and finally remove the solvent to obtain functionalized epoxy acrylate. FT-IR (Bruker TENSOR27 (Germany) Fourier transform infrared spectrometer) at 1726cm -...

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Abstract

The invention belongs to the technical field of coatings, and discloses an organosilicon-modified waterborne epoxy acrylate UV-curable coating, and preparation and application thereof. The coating comprises the following components in parts by mass: 100 parts of epoxy acrylate resin, 0 to 60 parts of organosilicone sol, 2 to 50 parts of functionalized epoxy acrylate, 0.1 to 4 parts of an aqueous photoinitiator, 0.5 to 5 parts of an auxiliary agent, and 100-300 parts of deionized water. The waterborne property of the epoxy acrylate is realized, the prepared emulsion is good in stability, smallin particle size and long in application period, and the photocuring function of double bonds on the epoxy acrylate is reserved. The coating has excellent heat resistance, mechanical property, wear resistance and chemical stability, and can be widely applied to the fields of heat-sensitive base materials, home decoration woodware, advertising lamp boards, electronic packaging materials and the like.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a silicone-modified waterborne epoxy acrylate UV curing coating and its preparation and application. Background technique [0002] UV-curable coatings have the advantages of high efficiency and energy saving. As a new type of green and environmentally friendly coatings, they have developed rapidly in recent years. Compared with traditional self-drying and heat-curing technologies, light-curing coatings have incomparable advantages, which can be summarized as "5E" principles: Economical, Efficient, Environmentally friendly, and widely adaptable ( Enabling) and Energy Saving. However, the active diluent used in the preparation has a strong odor, which can irritate the human skin and respiratory system, and seriously affect the safe use of the product. Moreover, the low molecular weight active diluent has a large shrinkage rate, which reduces the paint Overall perform...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D183/02
CPCC08L2201/08C08L2205/025C08L2205/03C09D163/10C08L63/10C08L83/02
Inventor 刘伟区刘荷花梁利岩
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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