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A kind of structural antibacterial water-based alkyd resin and preparation method thereof

A water-based alkyd resin and structural technology, applied in coatings, polyester coatings, anti-corrosion coatings, etc., can solve the problems of easy degradation, easy wash-off, poor durability of antibacterial effect, etc., and achieve good adhesion effect

Active Publication Date: 2020-09-01
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the technical problem to be solved in the present invention is to overcome the shortcomings such as poor durability of the antibacterial effect of physically added antibacterial agents, easy elution, and easy degradation. The present invention introduces the Schiff base structure with antibacterial effect into the alkyd resin molecular structure through chemical bonds. Among them, it not only has the advantages of alkyd resin, but also has good long-lasting antibacterial and antibacterial effects

Method used

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  • A kind of structural antibacterial water-based alkyd resin and preparation method thereof
  • A kind of structural antibacterial water-based alkyd resin and preparation method thereof
  • A kind of structural antibacterial water-based alkyd resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of isopropanolamine Schiff base A, its preparation steps are as follows:

[0031] Add 28.0 parts of benzaldehyde and 15.0 parts of ethanol into a reaction kettle equipped with a thermometer, agitator, dropping tank, and reflux condenser, and heat up to 80°C and stir evenly; in addition, weigh 19.8 parts of isopropanolamine and 10.0 parts of ethanol Add it into the dripping tank, dissolve evenly and slowly drop it into the reaction kettle. After the dropwise addition, add 0.6 parts of glacial acetic acid, continue to stir and reflux for 4 to 5 hours, cool to room temperature after the reaction is complete, let stand overnight, and filter with suction , to obtain a crude product; the crude product was recrystallized with 26.6 parts of ethanol, and dried in vacuo to obtain isopropanolamine Schiff base A.

Embodiment 2

[0033] A kind of isopropanolamine Schiff base B, its preparation steps are as follows:

[0034] Add 35.0 parts of cinnamaldehyde and 16.0 parts of ethanol to a reaction kettle equipped with a thermometer, a stirrer, a dropping tank, and a reflux condenser, and heat up to 80°C and stir evenly; in addition, weigh 19.9 parts of isopropanolamine and 8.0 parts of ethanol Add it into the dripping tank, dissolve evenly and slowly drop it into the reaction kettle. After the dropwise addition, add 0.6 parts of glacial acetic acid, continue to stir and reflux for 4 to 5 hours, cool to room temperature after the reaction is complete, let stand overnight, and filter with suction , to obtain a crude product; the crude product was recrystallized with 20.5 parts of ethanol, and dried in vacuum to obtain the isopropanolamine Schiff base B.

Embodiment 3

[0036] A kind of isopropanolamine Schiff base C, its preparation steps are as follows:

[0037] Add 30.0 parts of furfural and 13.0 parts of ethanol to a reaction kettle equipped with a thermometer, agitator, dropping tank, and reflux condenser, heat up to 80°C and stir well; in addition, weigh 23.4 parts of isopropanolamine and 10.0 parts of ethanol and add Put it into the dripping tank, dissolve evenly, and slowly drop it into the reaction kettle. After the dropwise addition, add 0.6 parts of glacial acetic acid, continue to stir and reflux for 4 to 5 hours, cool to room temperature after the reaction is complete, let stand overnight, and filter with suction. The crude product was obtained; the crude product was recrystallized with 30.0 parts of ethanol, and dried in vacuum to obtain isopropanolamine Schiff base C.

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PUM

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Abstract

The invention relates to a structural antibacterial water-based alkyd resin and a preparation method thereof. Composed of toluene, neutralizing agent, and deionized water; the isopropanolamine Schiff base is prepared by reacting isopropanolamine and aldehyde; the structural antibacterial water-based alkyd resin prepared by the present invention has good adhesion , fullness, high hardness, high gloss, corrosion resistance and other properties; when used as an antibacterial coating, no additional antibacterial agent is needed, and it can achieve long-lasting antibacterial and antibacterial effects. It can be used for interior and exterior wall coatings, water-based industrial coatings, water-based wood coatings, etc.

Description

technical field [0001] The invention relates to a preparation method of a modified alkyd resin, in particular to a structural antibacterial water-based alkyd resin and a preparation method thereof, belonging to the technical field of synthetic resins. Background technique [0002] Due to the wide distribution of microorganisms in the environment, human survival and health have always been threatened by various bacterial viruses. According to the survey conducted by the Health Care Committee of the US Centers for Disease Control and Prevention, bacteria were detected in 30 places in 35 families and the number of bacteria was calculated. It shows that there are 6,267 bacteria on the handle of the bathroom faucet, 120,000 bacteria on the fish tank, 560,000 bacteria on the kitchen pipe, and 3.2 million bacteria on the toilet. [0003] With the development of society and the improvement of people's living standards, people attach great importance to their own health, quality of l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/685C08G63/91C08G63/49C09D167/08C09D5/08C09D5/00
CPCC08G63/48C08G63/6856C08G63/914C09D5/00C09D5/08C09D167/08
Inventor 张武许钧强康伦国姚东生
Owner UNION FOSHAN CHEM
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