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Tongmaic anhydride-based hyperbranched UV-curable polyurethane acrylate and its preparation method and application

A technology of urethane acrylate and tungmaric anhydride, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems that are not involved, and achieve the advantages of reducing dependence, excellent curing performance, and enhancing mechanical properties and hydrolysis resistance. Effect

Active Publication Date: 2018-10-16
广州市荔威化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The Chinese invention patent application with the publication number CN102206917A discloses a manufacturing method of tungalic anhydride methyl ester modified wood fiber, although it also involves the preparation of wood fiber with renewable natural plant resource methyl tungalic acid, but does not involve tung horse anhydride methyl ester. Preparation of hyperbranched hydroxyl resins from maleic anhydride for the preparation of high-performance UV-curable polyurethane acrylates

Method used

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  • Tongmaic anhydride-based hyperbranched UV-curable polyurethane acrylate and its preparation method and application
  • Tongmaic anhydride-based hyperbranched UV-curable polyurethane acrylate and its preparation method and application
  • Tongmaic anhydride-based hyperbranched UV-curable polyurethane acrylate and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0036] (1) In a transparent reactor, add metered portions of methyl chelate and maleic anhydride successively (the molar ratio of methyl chelate to maleic anhydride is 1:1.2), and dissolve with acetone (the amount is 1 / 2 of the quality of methyl chelate). 300%), and then add diphenyl ethyl ketone (consumption is 3% of the quality of methyl cartilate), make it all dissolve and mix homogeneously. Turn on the UV light machine, and react under UV light for 2 hours. After drying in vacuo to evaporate the acetone to dryness, add cyclohexane (the amount is 100% of the quality of methyl chelate), and filter to remove unreacted maleic anhydride to obtain the reaction product I;

[0037] (2) Add the measured reaction product I, trimethylolpropane (the molar ratio of reaction product I to trimethylolpropane is 3:7) and N,N'-diisopropylcarbondi Imine (consumption is 2% of the molar weight of trimethylolpropane), stirred in vacuum and heated up to 140° C. for 3 hours to obtain tungalic an...

Embodiment 2

[0041] (1) In a transparent reactor, add measured portions of methyl chelate and maleic anhydride in turn (the molar ratio of methyl chelate to maleic anhydride is 1:1.2), and dissolve with a certain amount of methyl ethyl ketone (the amount is 500% of the mass of the ester), and then add quantitative α, α-diethoxyacetophenone (the amount is 5% of the mass of the methyl chelate), so that it is completely dissolved and mixed uniformly. Turn on the UV light machine, and react under UV light for 1 h. After drying in vacuo to evaporate methyl ethyl ketone to dryness, add a certain amount of n-hexane (300% of the mass of methyl licate), and filter to remove unreacted maleic anhydride to obtain reaction product I;

[0042] (2) Add metered reaction product I, trimethylolpropane (the molar ratio of reaction product I to trimethylolpropane 3:7) and dicyclohexylcarbodiimide (amount of three 4% of the molar weight of methylolpropane), stirred in vacuum and heated up to 160° C. for 2 h t...

Embodiment 3

[0046] (1) In a transparent reactor, sequentially add measured portions of methyl chelate and maleic anhydride (the molar ratio of methyl chelate to maleic anhydride is 1:1.2), and dissolve with a certain amount of xylene (the amount is 320% of the quality of methyl ester), then add quantitative benzoin ethyl ether (consumption is 4% of the quality of methyl chelate), make it all dissolve and mix homogeneously. Turn on the UV light machine, and react under UV light for 1.5h. After drying in vacuo to volatilize the xylene to dryness, add a certain amount of heptane (the amount is 200% of the quality of methyl licate), and filter to remove unreacted maleic anhydride to obtain the reaction product I;

[0047] (2) Add metered reaction product I, trimethylolpropane (the molar ratio of reaction product I to trimethylolpropane 3:7) and 1-(3-dimethylaminopropyl) in the reactor -3-Ethylcarbodiimide hydrochloride (consumption is 3% of trimethylolpropane molar weight), after vacuum stir...

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Abstract

The invention specifically discloses Tung oil-maleic anhydride-based hyper-branched UV-cured polyurethane acrylate, and a preparation method and application thereof, belonging to the field of UV-cured high polymer materials. The preparation method comprises the following steps: subjecting methyl eleostearate and maleic anhydride to an addition reaction under UV illumination so as to obtain an intermediate I, and then adding trimethylol propane for a high-temperature vacuum dehydration and esterification reaction with the intermediate I for 2 to 3 h so as to prepare a Tung oil-maleic anhydride hyper-branched polymer; adding mixed liquid of diisocyanate and a catalyst thereof into the hyper-branched polymer so as to obtain an intermediate II; and diluting the intermediate II with a diluent and reacting the diluted intermediate II with hydroxyalkyl acrylate for 1.5 to 2.5 h so as to obtain Tung oil-maleic anhydride-based hyper-branched UV-cured polyurethane acrylate. According to the invention, methyl eleostearate is applied as a raw material for light-cured resin, so the application scope of renewable natural oil products is broadened, the added value of the renewable natural oil products is increased, and great social and economic benefits are produced.

Description

technical field [0001] The invention belongs to the field of UV-curable polymer materials, and in particular relates to a terraic anhydride-based hyperbranched UV-curable polyurethane acrylate and a preparation method and application thereof. Background technique [0002] Due to the dual limitations of solid content and application viscosity, traditional water-based and oil-based coatings generally use linear low molecular weight resins as film-forming base materials, and some properties such as mechanics are often restricted by the linear molecular structure characteristics of film-forming base materials. The hyperbranched polymer (Hyperbranched Polymer) has a series of unique physical and chemical properties such as low viscosity, high rheology, and multi-terminal functional groups, and can be widely used in coatings, inks and other fields. With the in-depth research on high-performance polymers in recent years, hyperbranched polymers are considered to be one of the most p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/67C09D175/16
CPCC08G18/6705C08G18/672C09D175/16
Inventor 袁腾胡洋杨卓鸿刘英菊张超群周闯
Owner 广州市荔威化工有限公司