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Preparation method and application of cyclodextrin-based waterborne uv resin

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

Active Publication Date: 2022-06-14
QINGDAO ZHANCHEN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 and application of cyclodextrin-based waterborne uv resin
  • Preparation method and application of cyclodextrin-based waterborne uv resin
  • Preparation method and application of cyclodextrin-based waterborne uv resin

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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 the 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 was 30°C, and the reaction time was 4h;

[0042] B, after the reaction finishes, filter, remove impurity, after solvent dilution, then extract with aqueous solution, wash, get aqueous phase solution, oven dry to obtain intermediate product;

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

[0044] D, the chloropropene Dissolved in the organic solvent 1,4-dioxane, the solution obtained in step C was added dropwise to the above solution, the molar ratio of the halogenated olefin and the...

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, and stir the reaction. The molar ratio of succinic anhydride and cyclodextrin hydroxyl group 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 finishes, filter, remove impurity, after solvent dilution, then extract with aqueous solution, wash, get aqueous phase solution, oven dry to obtain intermediate product;

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

[0052] D. Halogenated olefins Dissolved in the organic solvent dimethyl sulfoxide, the solution obtained in step C was added dropwise to the above solution, and the temperature was raised to 50 ° C fo...

Embodiment 3

[0056] A preparation method of a 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, and stir the reaction, the molar ratio of succinic anhydride and cyclodextrin hydroxyl is 5:1, and the amount of catalyst added is 5%. The temperature was 90°C, and the reaction time was 36h;

[0058] B, after the reaction finishes, filter, remove impurity, after solvent dilution, then extract with aqueous solution, wash, get aqueous phase solution, oven dry to obtain intermediate product;

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

[0060] D. Halogenated olefins Dissolved in the organic solvent N-methylpyrrolidone, the solution obtained in step C was added dropwise to the above solution, and the temperature was raised to 60 °C for ...

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Abstract

The invention belongs to the technical field of coatings. The invention solves the problem of using cyclodextrin in water-based UV paint, and provides a preparation method and application of cyclodextrin-based water-based UV resin. Dissolve cyclodextrin in an organic solvent, add succinic anhydride and a basic catalyst; filter after the reaction, remove impurities, extract with aqueous solution, wash, take the aqueous phase solution, and dry to obtain an intermediate product; dissolve the above intermediate product in deionized water Dissolve the halogenated olefin in the organic solution, add the solution of the intermediate product dropwise to the solution, and heat up to react; cool to room temperature, separate liquids, take the aqueous phase solution, extract with solvent, and dry the aqueous phase product; dissolve the dry product in deionized water to obtain cyclodextrin aqueous UV resin. The carboxyl-terminated and water-based cyclodextrin ester derivatives are obtained through the ring-opening reaction of cyclodextrin and succinic anhydride, and further etherified with halogenated olefins to prepare water-based cyclodextrin resins containing double bonds. Based on this The resins are formulated into wood lacquer formulations with excellent finishing properties.

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 are derived from petroleum and coal energy. Although it brings huge development opportunities to the furniture coatings industry, because the raw materials are non-renewable resources, it is currently facing a huge industry transformation; at the same time Excessive use of petrochemical energy also brings huge damage to the environment and health. In particular, traditional oil-based coatings involve serious VOC problems, and the release of formaldehyde and benzene-based carcinogenic volatile solvents seriously endanger people's health. [0003] UV light curing and water-based coatings are environmentally friendly coatings. Under the action of phot...

Claims

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Application Information

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Patent Type & Authority Patents(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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