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Lasting corrosion-resistant water-based acrylic resin and preparation method thereof

A water-based acrylic and anti-corrosion technology, which is applied in the preparation of carboxylic acid halides, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve environmental pollution, endanger the health of front-line workers in production and construction, ecosystem and human health threats etc. to achieve the effects of low surface tension, long-lasting antibacterial and anti-corrosion properties, and excellent adhesion

Inactive Publication Date: 2018-05-18
UNION FOSHAN CHEM +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the anti-corrosion coatings used today are solvent-based anti-corrosion coatings, and solvent-based coatings use a large amount of solvents, which seriously endanger the health of front-line workers in production and construction on the one hand. medium, seriously pollutes the environment and poses a serious threat to ecosystems and human health

Method used

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  • Lasting corrosion-resistant water-based acrylic resin and preparation method thereof
  • Lasting corrosion-resistant water-based acrylic resin and preparation method thereof
  • Lasting corrosion-resistant water-based acrylic resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of diaromatic Schiff base acrylic acid A, its preparation steps are as follows:

[0033] a) Weigh 28.0 parts of salicylaldehyde and 15.8 parts of potassium carbonate in the reaction kettle in sequence, add 6.0 parts of N,N-dimethylformamide, stir and dissolve evenly, react at 80°C for 1 hour, and then add 20.6 parts of acryloyl chloride and 0.06 parts of potassium iodide, continue to react for 5 hours, cool after stopping the reaction, filter with suction, wash with water until neutral, and dry to obtain the reactant intermediate I;

[0034] b) In a reaction kettle equipped with a thermometer, agitator, and condenser tube, add the reactant intermediate I and 10.0 parts of ethanol, raise the temperature to 80°C and stir to dissolve evenly, slowly add 12.4 parts of phenylenediamine and 6.34 parts of ethanol solution dropwise After the dropwise addition, 0.8 parts of glacial acetic acid was added, and the reflux reaction was continued for 5 hours. After the reaction...

Embodiment 2

[0036] A kind of diaromatic Schiff base acrylic acid B, its preparation steps are as follows:

[0037] a) Weigh 26.0 parts of salicylaldehyde and 14.7 parts of potassium carbonate in the reaction kettle in sequence, add 5.0 parts of N,N-dimethylformamide, stir and dissolve evenly, react at 80°C for 1 hour, and then add 19.2 parts of acryloyl chloride and 0.05 parts of potassium iodide, continue to react for 5 hours, cool after stopping the reaction, filter with suction, wash with water until neutral, and dry to obtain the reactant intermediate II;

[0038] b) Add 15.0 parts of reactant intermediate II and ethanol to a reaction kettle equipped with a thermometer, agitator and condenser tube, raise the temperature to 80°C, stir and dissolve evenly, slowly add 6.4 parts of ethylenediamine and 12.95 parts of ethanol solution dropwise After the dropwise addition, add 0.7 parts of glacial acetic acid, continue to reflux for 5 hours, cool to room temperature after the reaction is com...

Embodiment 3

[0040]A kind of diaromatic Schiff base acrylic acid C, its preparation steps are as follows:

[0041] a) Weigh 30.0 parts of salicylaldehyde and 16.9 parts of potassium carbonate in the reaction kettle in sequence, add 7.5 parts of N,N-dimethylformamide, stir and dissolve evenly, react at 80°C for 1 hour, and then add 22.2 parts of acryloyl chloride and 0.08 parts of potassium iodide, continue to react for 5 hours, cool after stopping the reaction, filter with suction, wash with water until neutral, and dry to obtain the reaction product intermediate III;

[0042] b) In a reaction kettle equipped with a thermometer, a stirrer, and a condenser, add the reactant intermediate III and 10.0 parts of ethanol, heat up to 80°C and stir to dissolve evenly, slowly add 7.4 parts of 1,6-hexamethylenediamine and 5.1 parts of ethanol solution, after the dropwise addition, add 0.82 parts of glacial acetic acid, and continue the reflux reaction for 6 hours. After the reaction is complete, coo...

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Abstract

The invention relates to lasting corrosion-resistant water-based acrylic resin. The lasting corrosion-resistant water-based acrylic resin is mainly composed of acrylic monomer, double aromatic Schiffbase acrylic acid, acrylic acid, fluoroacrylate monomer, an initiator, an emulsifier, neutralizer and deionized water; the double aromatic Schiff base acrylic acid is prepared from salicylaldehyde, NH2-R-NH2 and acryloyl chloride through a reaction. The invention further provides a preparation method of the lasting corrosion-resistant water-based acrylic resin. The prepared lasting corrosion-resistant water-based acrylic resin has the low surface tension and self-cleaning property, and a prepared film has excellent adhesive force, water resistance, ageing resistance and corrosion resistance; the lasting corrosion-resistant water-based acrylic resin is used for preparing water-based industrial paint, anti-corrosion inhibitor and fungicides do not need to be added, and the lasting antibacterial property and anti-corrosion property are achieved.

Description

technical field [0001] The present invention relates to a kind of modified acrylic resin, relate in particular to a kind of durable anticorrosion waterborne acrylic resin and preparation method thereof, belong to the technical field of synthetic resin. Background technique [0002] The phenomenon that metal is damaged by the chemical or electrochemical action of the surrounding environment medium is called metal corrosion. With the development of society and the advancement of industrial technology, the use of metals has become more and more extensive, and the corrosion of metals has spread to all fields of the national economy. According to the survey statistics of developed countries in the world, the annual direct losses caused by corrosion account for about 2.5-4.2% of the total value, and it is estimated that about 20% of the metal materials in the world cannot be recovered due to corrosion. Therefore, the corrosion and protection of metals have attracted widespread att...

Claims

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Application Information

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IPC IPC(8): C08F265/06C08F220/14C08F220/24C08F222/22C09D151/00C09D5/08C09D5/14C09D133/12C09D133/08C07C249/02C07C251/24
CPCC07C67/14C07C249/02C08F265/06C09D5/08C09D5/14C09D133/066C09D133/12C09D151/003C07C251/24C07C69/54C08F222/225
Inventor 张武许钧强康伦国姚东生
Owner UNION FOSHAN CHEM
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