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High-performance curing agent and preparation method thereof and application of high-performance curing agent in epoxy anticorrosive coating material

A technology of epoxy anti-corrosion coatings and curing agents, which is applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of less inorganic powder and organic matrix, and achieve improved water resistance, reinforced defoaming, Effect of improving mechanical properties and chemical resistance

Inactive Publication Date: 2021-10-08
SUZHOU COLOR WAY ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above prior art that adding inorganic powder to the coating can effectively improve the wear resistance and corrosion resistance of the coating, but there are relatively few studies on how to solve the problem of combining the inorganic powder with the organic matrix.

Method used

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  • High-performance curing agent and preparation method thereof and application of high-performance curing agent in epoxy anticorrosive coating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) In parts by weight, add 50.5g of bifunctional glycidyl ether epoxy resin into the first mixer, add 0.5g of organic silicon polymer while stirring, heat and control the material temperature to 55°C, add 10g of bisphenol A , Stir for the first time at 50 rpm for 30 minutes, adjust the rotation speed to 10 rpm after dissolving bisphenol A, then add 5g xylene, 5g n-butanol, 1g isopropanol, 2g bisphenol A liquid epoxy Resin, 8g cardanol-modified active diluent, then adjust the rotation speed, stir for the second time at 50 rpm for 10 minutes, and let it stand for 30 hours to obtain the mixed material A;

[0028] (2) Under nitrogen protection, add 7.5g of N,N-diethyl-1,3-propylenediamine and 8g of low-molecular-weight epoxy resin to the second mixer, heat the material to a temperature above 25°C and stop stirring. Place and process for 30h to obtain the mixed material B;

[0029] (3) Add the mixed material B to the mixed material A in the first mixer, then add 1g of hydr...

Embodiment 2

[0033] (1) In parts by weight, add 50.5g of bifunctional glycidyl ether epoxy resin to the first mixer, add 0.5g of organic silicon polymer while stirring, heat and control the temperature of the material to 65°C, add 10g of bisphenol A , Stir for the first time at 60 rpm for 45 minutes, adjust the rotation speed to 20 rpm after bisphenol A dissolves, then add 5g xylene, 5g n-butanol, 1g isopropanol, 2g bisphenol A liquid epoxy Resin, 8g cardanol-modified active diluent, then adjust the rotation speed, stir for the second time at 60 rpm for 15 minutes, and let it stand for 26 hours to obtain the mixed material A;

[0034] (2) Under nitrogen protection, add 7.5g of N,N-diethyl-1,3-propylenediamine and 8g of low-molecular-weight epoxy resin to the second mixer, heat the material to a temperature above 25°C and stop stirring. Place and process for 27h to obtain the mixed material B;

[0035] (3) Add the mixed material B to the mixed material A in the first mixer, then add 1g of ...

Embodiment 3

[0039] (1) In parts by weight, add 50.5g of bifunctional glycidyl ether epoxy resin into the first mixer, add 0.5g of organic silicon polymer while stirring, heat and control the material temperature to 60°C, add 10g of bisphenol A , Stir for the first time at 55 rpm for 35 minutes, adjust the rotation speed to 15 rpm after dissolving bisphenol A, then add 5g xylene, 5g n-butanol, 1g isopropanol, 2g bisphenol A liquid epoxy Resin, 8g cardanol-modified active diluent, then adjust the rotation speed, stir for the second time at 55 rpm for 10 minutes, and let it stand for 33 hours to obtain the mixed material A;

[0040] (2) Under nitrogen protection, add 7.5g of N,N-diethyl-1,3-propylenediamine and 8g of low-molecular-weight epoxy resin to the second mixer, heat the material to a temperature above 25°C and stop stirring. Place and process for 30h to obtain the mixed material B;

[0041] (3) Add the mixed material B to the mixed material A in the first mixer, then add 1g of hydr...

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Abstract

The invention provides a high-performance curing agent, which is prepared from the following components, by mass: 45-55% of 1# epoxy resin, 1.0-3.0% of 2# epoxy resin, 5.0-9.0% of 3# epoxy resin, 0.4-0.6% of a de-foaming agent, 8.0-12.0% of bisphenol A, 4.0-6.0% of xylene, 4.0-6.0% of n-butyl alcohol, 1.0-3.0% of isopropanol, 6.0-10.0% of a reactive diluent, 5.0-9.0% of N, N-diethyl-1, 3-propane diamine, 0.5-1.0% of hydrophobic fumed silica and 0.5-1.5% of a drier, wherein the 1# epoxy resin is difunctional glycidyl ether epoxy resin, the 2# epoxy resin is bisphenol A type liquid epoxy resin, the solid content is 100%, and the 3# epoxy resin is low-molecular-weight epoxy resin generated by reaction of bisphenol A and liquid epoxy resin. The invention also discloses a preparation method of the curing agent and application of the curing agent in epoxy anticorrosive coating material. The curing agent provided by the invention is good in curing effect, the toughness of a coating can be effectively improved, and the prepared coating material is good in anti-corrosion effect and excellent in mechanical property.

Description

Technical field: [0001] The invention relates to the field of curing agents, in particular to a high-performance curing agent, a preparation method thereof and an application in epoxy anticorrosion coatings. Background technique: [0002] Metallic materials are widely used due to their excellent mechanical properties, processability, and thermal conductivity. However, metal materials are easily corroded by harsh environments during use, causing accidents, seriously endangering human safety, and causing huge economic and energy losses to the country and society. Therefore, it is necessary to carry out anti-corrosion treatment on metal materials to avoid the above. the occurrence of the situation. One of the methods with better anti-corrosion effect on metal materials is to apply anti-corrosion paint on the surface of metal materials. [0003] Coatings are generally composed of main film formers (such as resins, greases), secondary film formers (such as pigments and fillers)...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/65C09D7/63C09D7/61C09D7/20
CPCC09D163/00C09D5/08C09D7/65C09D7/63C09D7/61C09D7/20C08L2205/025C08L63/00C08L83/04C08L87/00C08K5/17C08K3/36C08K9/10C08K9/12C08K5/1545
Inventor 罗义云徐思良
Owner SUZHOU COLOR WAY ENTERPRISE DEV
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