Light-cured resin based on organic polyatomic acid as well as preparation method and application of light-cured resin

A light-curing resin and polyacid technology, which is applied in the preparation of organic compounds, organic chemistry, and carboxylate ester preparation, etc., can solve the problems of decreased material properties, complex synthesis routes, and expensive raw materials, and achieves good remodeling performance. Simple process and the effect of saving oil resources

Active Publication Date: 2020-11-24
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have some disadvantages, that is, when self-repairing or recycling materials, extremely high temperatures are required or a large amount of catalysts need to be introduced, resulting in a significant decline in material performance.
In addition, the specific structure required for some reactions, complex synthetic routes and expensive raw materials

Method used

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  • Light-cured resin based on organic polyatomic acid as well as preparation method and application of light-cured resin
  • Light-cured resin based on organic polyatomic acid as well as preparation method and application of light-cured resin
  • Light-cured resin based on organic polyatomic acid as well as preparation method and application of light-cured resin

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preparation example Construction

[0036] Another aspect of the embodiments of the present invention provides a method for preparing a photocurable resin based on an organic polybasic acid, which includes:

[0037] Under solvent-free conditions, the homogeneous mixed reaction system comprising dibasic acid and / or tribasic acid, glycidyl methacrylate and epoxy ring-opening catalyst is heated to undergo a ring-opening reaction to obtain structures such as formula (I) and / or the photocurable resin based on organic polybasic acid shown in formula (II);

[0038]

[0039] Wherein, the dibasic acid has a structure shown in formula (i), and the tribasic acid has a structure shown in formula (ii):

[0040]

[0041] Wherein, R includes a substituted or unsubstituted aliphatic chain or an aromatic ring, wherein the substituent group contains more than one hydroxyl group.

[0042] In some preferred embodiments, the dibasic acid and / or tribasic acid containing carboxylic acid group raw materials are subjected to so...

Embodiment 1

[0079] First, p-hydroxyanisole MEHQ (0.04g, 0.10wt%, based on the total weight of the mixture, the same below), antioxidant A71010 (0.04g, 0.10wt%) and triphenylphosphine TPP (1.24g, 10.0wt%) ). They were dissolved in glycidyl methacrylate GMA (28.4 g, 0.20 mol), added to a 500 ml four-necked flask equipped with nitrogen inlet, mechanical stirring, condenser and thermometer, and then heated to 60 °C for 1 h under nitrogen flow . Succinic acid (SA, 11.8 g, 0.10 mol) solid powder was added to the mixed system in batches at 95 °C at a molar ratio of 1:2 and GMA until clear and the temperature was kept at 100 °C for 3 h. Then the temperature was raised to 110° C. for 2 hours, and finally to 120° C. for 1 hour, and the resin was cooled to obtain a photocurable resin monomer, succinate diglyceride methacrylate (SG), with a yield of 100%. H NMR spectrum 1 H-NMR such as figure 1 As shown, there is a one-to-one correspondence between each peak on the figure and the atoms on the str...

Embodiment 2

[0082] First, p-hydroxyanisole MEHQ (0.04g, 0.10wt%, based on the total weight of the mixture, the same below), antioxidant A71010 (0.04g, 0.10wt%) and triphenylphosphine TPP (2.07g, 5.0wt%) ). They were dissolved in glycidyl methacrylate GMA (28.4 g, 0.20 mol), added to a 500 ml four-necked flask equipped with nitrogen inlet, mechanical stirring, condenser and thermometer, and then heated to 60 °C for 1 h under nitrogen flow . Itaconic acid (IA, 13.0 g, 0.10 mol) solid powder was added to the mixed system in batches at 95 °C at a molar ratio of 1:2 and GMA until it became clear and the temperature was kept at 95 °C for 2 h. Then the temperature was raised to 105° C. for 1 h, and finally to 115° C. for 2 h, and the resin was cooled to obtain the photocurable resin monomer itaconate diglyceryl methacrylate (IG), with a yield of 100%. H NMR spectrum 1H-NMR such as figure 2 As shown, there is a one-to-one correspondence between each peak on the figure and the atoms on the st...

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Abstract

The invention discloses light-cured resin based on organic polybasic acid as well as a preparation method and application of the light-cured resin. The light-cured resin based on the organic polyatomic acid has a structure shown as a formula (I) and/or a formula (II) as shown in the description, wherein R comprises a substituted or unsubstituted aliphatic chain or aromatic ring, and a substituentgroup comprises one or more hydroxyl groups. The preparation method comprises the following steps: heating a uniformly mixed reaction system containing a dibasic acid and/or tribasic acid, glycidyl methacrylate and an epoxy ring-opening catalyst to perform a ring-opening reaction so as to obtain the light-cured resin with the structure shown in the formula (I) and/or the formula (II). The preparation process is simple, the operation method is simple and convenient, the controllability is good, implementation is easy, the method is suitable for large-scale industrial production, and a repairable and remodelable light-cured coating prepared from the light-cured resin and UV photoinitiators or visible light initiators has excellent thermal property, mechanical property and recoverability.

Description

technical field [0001] The invention belongs to ultraviolet and visible light curing thermosetting acrylate resins, in particular to high-performance ultraviolet and visible light curing thermosetting acrylate resins based on various organic polybasic acids and a preparation method thereof. Background technique [0002] As a typical representative of energy-saving and environmentally friendly coatings, light-curing coatings have the advantages of low equipment cost, low energy consumption, fast molding speed, low volatile organic compound (VOC) emissions, and high construction flexibility compared with traditional coatings. More importantly, light curing technology also improves the machinability, solvent resistance and chemical resistance of the material. As a result there are substantial markets in wood products, coiled steel, furniture, electronic packaging, plastic and fiber pallets. [0003] As a coating, it will inevitably be damaged by external force and material ten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F122/20C08F2/48C09D135/02C07C67/24C07C69/54C07C69/593C07C69/675C07C69/704C07C69/76
CPCC08F122/20C08F2/48C09D135/02C07C67/24C07C69/54C07C69/593C07C69/675C07C69/704C07C69/76
Inventor 代金月王帅朋刘小青朱锦
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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