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Ultraviolet light-cured biomass epoxy acrylate prepolymer and synthesizing and application thereof

An epoxy acrylate, biomass technology, applied in the direction of modified epoxy resin adhesives, applications, epoxy resin coatings, etc., can solve the problems of poor light resistance and yellowing, high brittleness, poor flexibility, etc. Good flexibility and yellowing resistance, improved viscosity, good repeatability

Active Publication Date: 2017-08-08
国科广化(南雄)新材料研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of existing epoxy acrylates such as high viscosity, high brittleness, poor flexibility, light aging resistance and poor yellowing property, the primary purpose of the present invention is to provide a kind of UV-cured biomass epoxy acrylate prepolymer resolve resolution

Method used

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  • Ultraviolet light-cured biomass epoxy acrylate prepolymer and synthesizing and application thereof

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Embodiment 1

[0044] A kind of synthetic method of the biomass epoxy acrylate prepolymer of ultraviolet light curing, comprises the following steps:

[0045] 1. Mix 8.3g (0.028mol) of cardanol, 0.042g of zinc chloride and 1.4g (0.035mol) of sodium hydroxide, raise the temperature to 85°C under magnetic stirring, and add dropwise 4.4g (0.048mol) ) epichlorohydrin, the dropping time is 1.5h, maintained at a constant temperature of 105°C, reacted for 3h, cooled, washed with distilled water, filtered the organic phase with anhydrous sodium sulfate, and distilled under reduced pressure at 85°C to remove epichlorohydrin, Obtain cardanol glycidyl ether (I);

[0046] 2. Mix 5.3g (0.088mol) glacial acetic acid, 15.6g cyclohexane, 8.2g macroporous ion exchange resin D-120 with 9.8g (0.028mol) cardanol glycidyl ether (I), and keep the temperature at 60 ℃, add 15.0g (0.132mol) of hydrogen peroxide solution with a mass fraction of 30% dropwise, the dropwise addition time is 1.5h, react for 5h, cool, fi...

Embodiment 2

[0049] A kind of synthetic method of the biomass epoxy acrylate prepolymer of ultraviolet light curing, comprises the following steps:

[0050] 1. Mix 8.3g (0.028mol) of cardanol, 0.12g of aluminum chloride and 1.8g (0.032mol) of potassium hydroxide, and raise the temperature to 95°C under magnetic stirring, and dropwise add 3.8g (0.042mol) ) epichlorohydrin, dropwise for 1h, maintained at a constant temperature of 100°C, reacted for 2h, cooled, washed with distilled water, filtered the organic phase with anhydrous magnesium sulfate, distilled under reduced pressure at 75°C, removed epichlorohydrin, and obtained Cardanol glycidyl ether (I);

[0051] 2. Mix 5.9g (0.098mol) glacial acetic acid, 17.8g benzene, 11.8g macroporous ion exchange resin D113 and 9.8g (0.028mol) cardanol glycidyl ether (I), keep the temperature at 70°C, add dropwise 14.0g (0.124mol) of hydrogen peroxide solution with a mass fraction of 30% was added dropwise for 0.5h, reacted for 4h, cooled, filtered of...

Embodiment 3

[0054] A kind of synthetic method of the biomass epoxy acrylate prepolymer of ultraviolet light curing, comprises the following steps:

[0055] 1. Mix 8.3g (0.028mol) of cardanol, 0.083g of ferric chloride and 1.2g (0.030mol) of sodium hydroxide, raise the temperature to 90°C under magnetic stirring, and add dropwise 4.1g (0.044mol) ) epichlorohydrin, the dropping time is 0.5h, maintained at a constant temperature of 95°C, reacted for 3h, cooled, washed with distilled water, filtered the organic phase with anhydrous sodium sulfate, and distilled under reduced pressure at 80°C to remove epichlorohydrin, Obtain cardanol glycidyl ether (I);

[0056] 2. Mix 5.6g (0.093mol) glacial acetic acid, 16.3g cyclohexane, 9.1g macroporous ion exchange resin D-120 with 9.8g (0.028mol) cardanol glycidyl ether (I), and keep the temperature at 65 ℃, add 14.4g (0.127mol) of hydrogen peroxide solution with a mass fraction of 30% dropwise, the dropwise addition time is 1h, react for 6h, cool, fil...

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Abstract

The invention discloses an ultraviolet light-cured biomass epoxy acrylate prepolymer and a synthesizing method and application thereof. The synthesizing method comprises the following steps of using cardanol as a main raw material, enabling phenolic hydroxyl in cardonol molecules and epichlorohydrin to react, enabling double bonds in the cardonol molecules and hydrogen peroxide to react so as to lead in a plurality of epoxy groups, and then reacting with (methyl)acrylic acid, so as to synthesize the ultraviolet light-cured biomass epoxy acrylate prepolymer. The synthesizing method has the advantages that the method is novel, the operation is simple, and the repeatability is good; the synthesized biomass epoxy acrylate prepolymer contains a cardanol group, so that a product has better hydrophobic property and chemical reagent-resistant property, the viscosity and rigidity of the product are correspondingly improved, and the prepolymer can be applied to the fields of ultraviolet light-cured coatings, ink, adhesives and the like.

Description

technical field [0001] The invention belongs to the field of photocurable polymer materials, and in particular relates to an ultraviolet light-cured biomass epoxy acrylate prepolymer and its synthesis method and application. Background technique [0002] Ultraviolet curing technology, also known as UV curing technology, is widely used in adhesives, coatings, inks and other fields. Oligomers containing active groups are the main components of UV curing systems and play a decisive role in the performance of cured products. [0003] Epoxy acrylate is currently one of the most widely used and heavily used photocurable oligomers. It is obtained by esterification of (meth)acrylic acid and epoxy substances. However, traditional epoxy acrylates such as bisphenol A epoxy acrylate have high viscosity, which is not conducive to the use of proportioning, and the cured product has high brittleness, poor flexibility, and poor light aging and yellowing resistance, so it is not suitable fo...

Claims

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Application Information

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IPC IPC(8): C08G59/17C08G59/06C09D163/10C09J163/10C09D11/101
CPCC08G59/063C08G59/1466C09D11/101C09D163/10C09J163/10
Inventor 庞浩马哲廖兵黄健年福伟黄浩黄福仁
Owner 国科广化(南雄)新材料研究院有限公司
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