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Multifunctional bio-based epoxy acrylate prepolymer as well as preparation method and application thereof

A technology based on epoxy acrylate and multi-functionality, which is applied in the field of multi-functional bio-based epoxy acrylate and its preparation, can solve problems such as human injury, bisphenol A reproductive toxicity and endocrine disruption, and achieve enhanced hardness, The effect of controlling flexibility and material availability

Active Publication Date: 2021-06-11
SOUTH CHINA AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of research data show that bisphenol A has reproductive toxicity and endocrine disrupting properties, and has great harm to the human body

Method used

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  • Multifunctional bio-based epoxy acrylate prepolymer as well as preparation method and application thereof
  • Multifunctional bio-based epoxy acrylate prepolymer as well as preparation method and application thereof
  • Multifunctional bio-based epoxy acrylate prepolymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of multifunctional bio-based epoxy acrylate, comprising the steps of:

[0035] (1) Add oleic acid (10.00g), thioglycolic acid (3.80g, purity 90%) and 5% photoinitiator (2-hydroxy-2-methanol) in a quartz test tube with a magnetic rotor Propiophenone 0.69g), placed in a photochemical reaction apparatus, and irradiated with ultraviolet light with a wavelength of 365nm at room temperature for 6h to obtain oleic acid-based dicarboxylic acid. The molar ratio of oleic acid to thioglycolic acid is 1:1.05.

[0036] (2) Add oleic acid-based dicarboxylic acid (7.49g) and itaconic acid (4.27g, purity 99%) obtained in (1) into the reaction kettle, add methyl ethyl ketone to dissolve them, stir and heat up to 60°C , add tertiary ammonium salt catalyst N, N-dimethylethanolamine (0.023g), then raise the temperature to 80°C and add resorcinol diglycidyl ether (8.27g) containing inhibitor hydroquinone (0.094g) dropwise g, purity 94%), reacted for 1h, then raised it...

Embodiment 2

[0038] A preparation method of multifunctional bio-based epoxy acrylate, comprising the steps of:

[0039] (1) Add ricinoleic acid (10.00g), mercaptoacetic acid (3.60g, purity 90%) and 5% photoinitiator (2-hydroxy-2-formazol) in a quartz test tube with a magnetic rotor Propiophenone 0.68g), placed in a photochemical reaction apparatus, and irradiated with ultraviolet light with a wavelength of 365nm at room temperature for 6h to obtain ricinoleic acid-based dicarboxylic acid. The molar ratio of described ricinoleic acid to thioglycolic acid is 1:1.05.

[0040](2) Add the ricinoleic acid-based dicarboxylic acid (9.76 g) and itaconic acid (3.61 g) in (1) into the reaction kettle, add methyl ethyl ketone to dissolve them, stir and heat up to 60 ° C, add tertiary ammonium Salt catalyst N, N-dimethylethanolamine (0.027g), then heated to 80°C and added dropwise resorcinol diglycidyl ether (8.27g, purity 94 %), reacted for 1h, then raised its temperature to 90°C for 4h, then slowly...

Embodiment 3

[0042] A preparation method of multifunctional bio-based epoxy acrylate, comprising the steps of:

[0043] (1) Add oleic acid (10.00g), thioglycolic acid (3.86g, purity 90%) and 5% photoinitiator (2-hydroxy-2-methyl Propiophenone (0.69 g) was placed in a photochemical reaction apparatus, and irradiated with ultraviolet light with a wavelength of 365 nm at room temperature for 6 hours to obtain tungoleic acid-based dicarboxylic acid. The molar ratio of oleic acid to thioglycolic acid is 1:1.05.

[0044] (2) Add oleic acid-based dicarboxylic acid (11.12g) and itaconic acid (2.96g, purity 99%) in (1) into the reaction kettle, add methyl ethyl ketone to dissolve them, stir and heat up to 60°C , add tertiary ammonium salt catalyst N, N-dimethylethanolamine (0.028g), then raise the temperature to 80°C and dropwise add resorcinol diglycidyl ether (8.27 g, purity 94%), reacted for 1h, then raised its temperature to 90°C for 4h, then slowly added glycidyl methacrylate (5.13g, purity ...

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Abstract

The invention belongs to the field of UV curing materials, and particularly relates to a preparation method of multifunctional bio-based epoxy acrylate, which comprises the following steps: mixing unsaturated vegetable oil-based carboxylic acid, mercaptoacetic acid and a photoinitiator, and carrying out a photochemical reaction to obtain vegetable oil-based dicarboxylic acid; mixing the obtained vegetable oil-based dicarboxylic acid with a certain amount of itaconic acid, adding a solvent to dissolve the mixture, controlling the temperature, adding a tertiary ammonium salt catalyst, heating, adding resorcinol diglycidyl ether containing a polymerization inhibitor, reacting, heating again, reacting, slowly adding glycidyl methacrylate, and continuously reacting to obtain a finished product. Active double bonds are introduced into a main chain of epoxy acrylate, so that the functionality of the epoxy acrylate is greatly improved, fatty acid long chains in vegetable oil-based dibasic acid have a growth effect on the main chain of the epoxy acrylate, the hydrophobic effect of the epoxy acrylate is enhanced, and the hardness of the epoxy acrylate is enhanced through introduction of biomass benzene rings; and the use of petrochemical resources is reduced.

Description

technical field [0001] The invention belongs to the field of UV curing materials, and in particular relates to a multifunctional bio-based epoxy acrylate and a preparation method and application thereof. Background technique [0002] Epoxy acrylate is currently the most widely used and most used photocurable oligomer. It is an important raw material for UV curing materials. It is formed by epoxy resin and (meth)acrylic acid through ring-opening under the action of a catalyst made. Epoxy acrylate can be divided into bisphenol A epoxy acrylate, novolac epoxy acrylate, epoxy acrylate and modified epoxy acrylate according to the structure type, among which bisphenol A epoxy acrylate is the most commonly used, The dosage is also the largest. [0003] The epoxy acrylate molecule contains epoxy groups and active double bonds at the same time, so that it can not only be cured by free radicals through active double bonds, but also can be cured after the action of epoxy groups, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C319/20C07C323/52C09D4/02C09D11/101C09D11/107C09J4/02C08L33/14B33Y70/00
CPCC07C319/20C07C319/18C09D4/00C09D11/101C09D11/107C09J4/00C08L33/14B33Y70/00C07C323/52
Inventor 袁腾黄锦清陈洁怡肖亚亮杨卓鸿
Owner SOUTH CHINA AGRI UNIV
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