Environment-friendly epoxy aqueous paint, and preparation method thereof

A technology of epoxy water-based coatings, applied in antifouling/underwater coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor environmental protection, poor comprehensive performance, and single functionality, and achieve good uniformity and stability , improve the effect of antibacterial, high quality

Inactive Publication Date: 2018-11-06
合肥拖油瓶信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high brittleness of epoxy resin cured products, poor impact resistance, acid and alkali resistance, flexibility and temperature resistance, the application of epoxy resin coatings is limited. One of the focuses of the research;
[0003] However, the environmental protection of epoxy water-based coatings is poor at present, and the functions are single, and the comprehensive performance is poor.

Method used

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  • Environment-friendly epoxy aqueous paint, and preparation method thereof
  • Environment-friendly epoxy aqueous paint, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of environment-friendly epoxy water-based coating, it is made up of the raw material of following weight part:

[0021] Water-based epoxy emulsion 200, sodium myristate soap 2, diisocyanate 3, methanol 40, tetrabutyl titanate 40.

[0022] Described aqueous epoxy emulsion is made up of the raw material of following weight part:

[0023] Epoxy resin E51 80, 1-methylimidazole 20, oleic acid 16, 2-mercaptobenzimidazole 2, sucrose acetate isobutyrate 1.

[0024] The preparation method of described aqueous epoxy emulsion, comprises the following steps:

[0025] (1) Take 2-mercaptobenzimidazole, add it to 9 times its weight in absolute ethanol, stir evenly, add 1-methylimidazole, keep stirring at 50°C for 2 hours, distill off ethanol, add oleic acid, Stir at room temperature for 4 hours to obtain oleate;

[0026] (2) Mix sucrose acetate isobutyrate and oleate, add deionized water 30 times the weight of the mixture, stir evenly, add epoxy resin E51, and ultrasonicate ...

Embodiment 2

[0032] A kind of environment-friendly epoxy water-based coating, it is made up of the raw material of following weight part:

[0033] Water-based epoxy emulsion 130, sodium myristate soap 1, diisocyanate 2, methanol 30, tetrabutyl titanate 30.

[0034] Described aqueous epoxy emulsion is made up of the raw material of following weight part:

[0035] Epoxy resin E51 70, 1-methylimidazole 18, oleic acid 10, 2-mercaptobenzimidazole 1, sucrose acetate isobutyrate 0.6.

[0036] The preparation method of described aqueous epoxy emulsion, comprises the following steps:

[0037] (1) Take 2-mercaptobenzimidazole, add it to 6 times the weight of absolute ethanol, stir evenly, add 1-methylimidazole, keep stirring at 40°C for 1 hour, distill off ethanol, add oleic acid, Stir at room temperature for 3 hours to obtain oleate;

[0038] (2) Mix sucrose acetate isobutyrate and oleate, add deionized water 20 times the weight of the mixture, stir well, add epoxy resin E51, and ultrasonicate a...

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Abstract

The invention discloses an environment-friendly epoxy aqueous paint, and a preparation method thereof. The environment-friendly epoxy aqueous paint is composed of, by weight, 130 to 200 parts of aqueous epoxy emulsion, 1 to 2 parts of sodium myrastate, 2 to 3 parts of diisocyanate, 30 to 40 parts of methanol, and 30 to 40 parts of tetrabutyl titanate. According to the preparation method, tetrabutyl titanate is taken as a precursor, a sol obtained through hydrolysis is mixed with the aqueous epoxy emulsion, quaternization is carried out under the action of methanol, and the antibacterial performance and yellowing resistance of obtained finished product paint are improved. The coating film of the environment-friendly epoxy aqueous paint is high in uniform stability, and finished product quality is high.

Description

technical field [0001] The invention belongs to the field of environment-friendly epoxy water-based paint, and in particular relates to an environment-friendly epoxy water-based paint and a preparation method thereof. Background technique [0002] Epoxy resin has excellent chemical corrosion resistance, has excellent adhesion to many substrates, and can be cured with a variety of curing agents. The coating film has good compactness, strong rigidity, and good heat and wear resistance. Occupying an important position in anti-corrosion coatings, by adding different fillers and adjusting the types of curing agents, epoxy resin anti-corrosion coatings with different properties can be made, suitable for different anti-corrosion occasions, and achieve good protection effects. About 40% of the world's epoxy resins are used in the manufacture of epoxy coatings every year, most of which are used in the field of anti-corrosion. In my country, about 30% to 40% of epoxy resins are proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/14C09D7/61C09D7/63C08G18/58
CPCC08G18/58C08K2003/2241C09D5/14C09D7/61C09D7/63C09D175/04C08K5/098C08K5/3445C08K3/22
Inventor 孙艺宾
Owner 合肥拖油瓶信息科技有限公司
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