Bio-based self-repairing photocureable coating as well as preparation method and application thereof

A light-curing coating and self-repairing technology, applied in the direction of coating, etc., can solve the problems of restricting the movement of chain segments, not being able to change the shape of materials, and reducing the ductility of materials, etc., to achieve simple synthesis, increase reusability, and increase system functional groups effect of density

Inactive Publication Date: 2021-03-05
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cross-linked network of thermosetting materials is formed when it is cured, and it only cracks at high temperature and cannot change the shape of the material. Compared with thermoplastic materials, it greatly limits the movement of the chain segment and reduces the ductility of the material.

Method used

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  • Bio-based self-repairing photocureable coating as well as preparation method and application thereof
  • Bio-based self-repairing photocureable coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) First synthesize epoxidized vegetable oil: by weight in proportion: take 40 parts of soybean oil, 5 parts of formic acid and 50 parts of toluene, stir and preheat at 50 ° C for 30 minutes; add dropwise a total of 50 parts of hydrogen peroxide and 3 parts of concentrated sulfuric acid The mixture was heated to 70°C for 5 hours to obtain self-made epoxidized soybean oil.

[0037] (2) Epoxy soybean oil acrylate: in proportion by weight: Weigh 60 parts of epoxy soybean oil, 20 parts of acrylic acid, 3 parts of inhibitor hydroquinone and 2 parts of catalyst dibutyltin oxide at 50°C After stirring for 30 minutes, react at 100°C for 4 hours to obtain epoxy soybean oil acrylate.

[0038] (3) Stir and blend 40 parts of the above-mentioned epoxy soybean oil acrylate, 20 parts of methyl acrylate diluent, 5 parts of zinc acetylacetonate and 1 part of free radical photoinitiator benzoin dimethyl ether at room temperature for at least 30 minutes, 50 parts ℃ for at least 1 hour t...

Embodiment 2

[0040] (1) Synthesize epoxidized vegetable oil first: by weight in proportion: take 45 parts of rubber seed oil, 5 parts of formic acid and 50 parts of toluene, stir and preheat at 50°C for 30 minutes; add dropwise 50 parts of hydrogen peroxide and 3 parts of concentrated sulfuric acid The blend solution was heated to 70°C for 6 hours to obtain self-made epoxidized rubber seed oil.

[0041] (2) Synthetic epoxy rubber seed oil acrylate: in proportion by weight: weigh 60 parts of epoxy rubber seed oil, 20 parts of acrylic acid, 3 parts of polymerization inhibitor p-benzoquinone and 2 parts of catalyst triethylamine at 50°C After stirring for 30 minutes, react at 100°C for 4 hours to obtain epoxy rubber seed oil acrylate.

[0042] (3) Stir at room temperature with 50 parts of above-mentioned epoxy rubber seed oil acrylate, 20 parts of diluent hydroxypropyl acrylate, 6 parts of transesterification catalyst zinc acetylacetonate and 2 parts of free radical photoinitiator chlorinated...

Embodiment 3

[0044] (1) Synthesize epoxidized vegetable oil first: by weight in proportion: weigh 50 parts of tung oil, 5 parts of formic acid and 50 parts of toluene, stir and preheat at 50°C for 30 minutes; add dropwise a blend of 50 parts of hydrogen peroxide and 3 parts of concentrated sulfuric acid , heated to 70 ° C for 6 hours to obtain self-made epoxidized tung oil.

[0045] (2) Synthesis of epoxy tung oil acrylate: in proportion by weight: take 60 parts of epoxy tung oil, 20 parts of acrylic acid, 3 parts of polymerization inhibitor p-methoxyphenol and 2 parts of catalyst triphenylphosphine and stir at 110 ° C After 30 minutes, react at 100°C for 4 hours to obtain epoxy tung oil acrylate.

[0046] (3) 60 parts of above-mentioned epoxy tung oil acrylate, 20 parts of diluent hydroxypropyl methacrylate, 7 parts of transesterification catalyst 1,5,7-triazabicyclo[4.4.0]dec-5-ene Stir and blend with 3 parts of free radical photoinitiator D1173 at room temperature for at least 30 minut...

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Abstract

The invention provides a preparation method of a grease-based self-repairing photocureable coating. The grease-based self-repairing photocureable coating is prepared from 40-60 parts of epoxy vegetable oil-based acrylate, 20-50 parts of a diluent, 1-4 parts of a photoinitiator, 1-8 parts of a polymerization inhibitor and 5-10 parts of a catalyst. The grease-based self-repairing photocureable resinmaterial prepared by the method does not contain other solvents to participate in reaction, is simple and quick to prepare, and is suitable for green industrial flow line production. The obtained coating shows good self-repairing performance. The coating can be widely applied to the coating fields of metal, woodware, plastics and the like.

Description

technical field [0001] The invention belongs to the field of synthetic polymer materials, and in particular relates to a preparation method of an oil-based self-repairing photocurable resin material. The grease-based self-repairing light-curing coating prepared by the invention can replace traditional coatings and be used in the coating protection fields of metals, woodware, plastics, and the like. Background technique [0002] The cross-linked thermosetting resin has good mechanical properties after curing, high thermal stability and good corrosion resistance, and is widely used in various high-performance material fields. However, the cross-linked network of thermosetting materials is formed when it is cured, and it only cracks at high temperature and cannot change the shape of the material. Compared with thermoplastic materials, it greatly restricts the movement of chain segments and reduces the ductility of the material. [0003] In 2011, Leibler et al. introduced rever...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D191/00
CPCC09D191/00
Inventor 刘承果黄佳周永红张金帅朱国强胡云尚倩倩冯国东胡立红
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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