Multifunctional vegetable oil-based acrylate as well as preparation method and application thereof

An oil-based acrylate and multi-functionality technology, which is applied in the fields of sulfide preparation, organic chemistry, coating, etc., can solve the problems of petroleum-based UV curing coatings that are not easy to degrade, environmental pollution, ecological environment damage, etc.

Active Publication Date: 2021-06-08
SOUTH CHINA AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, most of the acrylates in UV-curable coatings come from petroleum resources. Due to the shortage of petroleum resources, petroleum-based acrylates are used in the coating industry, and the

Method used

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  • Multifunctional vegetable oil-based acrylate as well as preparation method and application thereof
  • Multifunctional vegetable oil-based acrylate as well as preparation method and application thereof
  • Multifunctional vegetable oil-based acrylate as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A preparation method of polyfunctional castor oil-based acrylate, comprising the steps of:

[0049] (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.

[0050] (2) Add oleic acid (10.00g), thiomalic acid (5.70g, purity 98%) and photoinitiator (2-hydroxy-2 - methyl propiophenone 0.79g), 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 tricarboxylic acid. The molar ratio of oleic acid to thioglycolic acid is 1:1.05.

[0051] (3) Add castor oil (10.00g), thiomalic acid (5.01g, purity 98%) a...

Embodiment 2

[0057] A preparation method of multifunctional castor oil-based acrylate, which is the same as Example 1 except for the following steps: castor oil-based hexavalent acrylate (9.00g), oleic acid-based dibasic acrylate (1.00g) and photoinitiated The prepolymer (0.30g) was placed in a 20mL glass bottle with a magnetic rotor and stirred evenly, and then the prepolymer was spread on a glass plate with a 500μm applicator, and irradiated for 30s under a UV-LED light source with a wavelength of 365nm to obtain Light curing film. The mass ratio of the castor oil-based six-basic acrylate and oleic acid-based tribasic acrylate is 9:1, and the content of the photoinitiator is the total amount of castor oil-based hexa-basic acrylate and oleic acid-based dibasic acrylate 3wt%.

Embodiment 3

[0059] A preparation method of multifunctional castor oil-based acrylate is the same as Example 2 except for the following steps: the mass ratio of the castor oil-based hexavalent acrylate to oleic acid-based diacrylate is 8:2.

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Abstract

The invention relates to a preparation method of multifunctional vegetable oil-based acrylate. The preparation method comprises the following steps: respectively carrying out light click reaction on oleic acid, mercaptoacetic acid and thiomalic acid to prepare oleic acid-based dicarboxylic acid or oleic acid-based tricarboxylic acid with a fatty acid long chain; then respectively reacting with glycidyl methacrylate to prepare polyfunctional oleic acid-based acrylate; and subjecting vegetable oil and thiomalic acid to a light click reaction to prepare vegetable oil-based polycarboxylic acid, and then reacting the vegetable oil-based polycarboxylic acid with glycidyl methacrylate to prepare the multifunctional vegetable oil-based acrylate. The crosslinking density of a cured film is enhanced by improving the functionality of the prepolymer, and the crosslinking density of the cured film is adjusted by adjusting the content of the oleic acid-based polybasic acrylic acid, so that the tensile strength, pencil hardness and chemical corrosion resistance of the cured film are enhanced, the flexibility of the light-cured film is improved, and by introducing the bio-based raw materials such as oleic acid and vegetable oil which are rich in source, the use of petrochemical resources in a photocureable coating is reduced.

Description

technical field [0001] The invention belongs to the field of UV curing materials, and in particular relates to a multifunctional vegetable oil-based acrylate and a preparation method and application thereof. Background technique [0002] The main components of UV-curable coatings include oligomers, reactive diluents and photoinitiators, among which, the main components of oligomers and reactive diluents are mostly acrylates. Acrylates can be generally divided into difunctionality, trifunctionality, hexafunctionality and multifunctionality according to their functionalities. Properties of photocurable films. However, until now, most of the acrylates in UV-curable coatings come from petroleum resources. Due to the shortage of petroleum resources, petroleum-based acrylates are used in the coating industry, and the price is relatively expensive, and petroleum-based UV-curable coatings are not easy to be degraded. It will cause environmental pollution and cause a certain degree...

Claims

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Application Information

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IPC IPC(8): C07C319/16C07C319/20C07C323/52C09D4/02
CPCC07C319/16C07C319/20C07C323/52C09D4/00
Inventor 袁腾黄锦清肖亚亮李小平杨卓鸿
Owner SOUTH CHINA AGRI UNIV
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