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Preparation method of cyclodextrin-based water-based UV resin and application thereof

A cyclodextrin, water-based technology, applied in the field of coatings, can solve VOC problems, environment, health damage, health hazards and other problems, and achieve the effect of simple and convenient preparation process and post-processing, and controllable structure-activity relationship

Active Publication Date: 2021-02-05
QINGDAO ZHANCHEN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The coatings used in the traditional furniture industry are usually oil-based coatings, and the raw materials come from petroleum and coal energy. Although it brings huge development opportunities to the furniture coating industry, it is currently facing a huge industry transformation because the raw materials are non-renewable resources; at the same time The excessive use of petrochemical energy has also brought huge damage to the environment and health, especially the traditional oil-based paint involves serious VOC problems, and the released formaldehyde and benzene carcinogenic volatile solvents seriously endanger people's health

Method used

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  • Preparation method of cyclodextrin-based water-based UV resin and application thereof
  • Preparation method of cyclodextrin-based water-based UV resin and application thereof
  • Preparation method of cyclodextrin-based water-based UV resin and application thereof

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preparation example Construction

[0040] A preparation method of cyclodextrin-based water-based UV resin, the steps are as follows:

[0041] A. Dissolve cyclodextrin in an organic solvent, add succinic anhydride and 4-dimethylaminopyridine, and stir for reaction. The molar ratio of succinic anhydride and cyclodextrin hydroxyl group is 1:1, and the amount of catalyst added is 0.01%. The temperature is 30°C, and the reaction time is 4h;

[0042] B, after the reaction is finished, filter to remove impurities, dilute with solvent, then extract with aqueous solution, wash, take the aqueous phase solution, and dry to obtain the intermediate product;

[0043] C, the above-mentioned intermediate product is dissolved in deionized water, and agitator, reflux condensation equipment and constant pressure dropping funnel are installed;

[0044] D. Chloropropene Dissolve in the organic solvent 1,4-dioxane, add the solution obtained in step C to the above solution dropwise, control the molar ratio of the halogenated olefi...

Embodiment 2

[0048] A preparation method of cyclodextrin-based water-based UV resin, the steps are as follows:

[0049] A. Dissolve cyclodextrin in an organic solvent, add succinic anhydride and basic catalyst triethylamine, stir and react, the molar ratio of succinic anhydride and cyclodextrin hydroxyl is 3:1, and the amount of catalyst added is 2%. The temperature is 60°C, and the reaction time is 20h;

[0050] B, after the reaction is finished, filter to remove impurities, dilute with solvent, then extract with aqueous solution, wash, take the aqueous phase solution, and dry to obtain the intermediate product;

[0051] C, the above-mentioned intermediate product is dissolved in deionized water, and agitator, reflux condensation equipment and constant pressure dropping funnel are installed;

[0052] D. Halogenated olefins Dissolve in the organic solvent dimethyl sulfoxide, add the solution obtained in step C to the above solution dropwise, heat up to 50°C and react for a period of tim...

Embodiment 3

[0056] A preparation method of cyclodextrin-based water-based UV resin, the steps are as follows:

[0057] A. Dissolve cyclodextrin in an organic solvent, add succinic anhydride and basic catalyst triethylamine, stir and react, the molar ratio of succinic anhydride and cyclodextrin hydroxyl is 5:1, and the amount of catalyst added is 5%, the reaction The temperature is 90°C, and the reaction time is 36h;

[0058] B, after the reaction is finished, filter to remove impurities, dilute with solvent, then extract with aqueous solution, wash, take the aqueous phase solution, and dry to obtain the intermediate product;

[0059] C, the above-mentioned intermediate product is dissolved in deionized water, and agitator, reflux condensation equipment and constant pressure dropping funnel are installed;

[0060] D. Halogenated olefins Dissolve in the organic solvent N-methylpyrrolidone, add the solution obtained in step C to the above solution dropwise, heat up to 60°C and react for a...

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Abstract

The invention belongs to the technical field of coatings, and provides a preparation method of cyclodextrin-based water-based UV resin and an application thereof by aiming at solving the problem of applying cyclodextrin to water-based UV coatings. The method comprises the followings steps: dissolving cyclodextrin in an organic solvent, and adding succinic anhydride and an alkaline catalyst; afterthe reaction is finished, filtering, removing impurities, extracting with an aqueous solution, washing, taking an aqueous phase solution, and drying to obtain an intermediate product; dissolving the intermediate product in deionized water; dissolving halogenated olefin into an organic solution, dropwise adding the solution of the intermediate product into the solution, and heating for reaction; cooling to room temperature, separating liquid, taking a water-phase solution, extracting with a solvent, and drying a water-phase product; and dissolving the dried product in deionized water to obtainthe cyclodextrin water-based UV resin. The cyclodextrin and succinic anhydride are subjected to a ring-opening reaction to obtain a carboxyl-terminated waterborne cyclodextrin ester derivative, the carboxyl-terminated waterborne cyclodextrin ester derivative and halogenated olefin are further subjected to an etherification reaction to prepare waterborne cyclodextrin resin containing double bonds,and a wood lacquer formula is prepared based on the resin and has excellent coating performance.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a preparation method and application of a cyclodextrin-based water-based UV resin. Background technique [0002] The coatings used in the traditional furniture industry are usually oil-based coatings, and the raw materials come from petroleum and coal energy. Although it brings huge development opportunities to the furniture coating industry, it is currently facing a huge industry transformation because the raw materials are non-renewable resources; at the same time The excessive use of petrochemical energy has also brought huge damage to the environment and health. In particular, traditional oil-based paints involve serious VOC problems. The released formaldehyde and benzene carcinogenic volatile solvents seriously endanger people's health. [0003] UV light-curing and water-based coatings are environmentally friendly coatings. Under the action of photoinitiators, U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/16C09D105/16
CPCC08B37/0012C09D105/16
Inventor 蔡龙陈寿生刘华东罗先平
Owner QINGDAO ZHANCHEN NEW MATERIAL
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