High-flash-point high-solid-content safe flaky zinc-based zinc-rich coating and preparation method thereof

A zinc-based zinc-rich, flake-like technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of easy damage and cracking of the surface layer, and achieve low VOC content, reduced construction costs, and simple production processes. Effect

Inactive Publication Date: 2020-12-29
HUAIAN PAINT MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems existing in traditional zinc-rich coatings, the technical problem to be solved by the present invention is to provide a high-flash point, high solid content and safe scale zinc-based zinc-rich coating, which solves the problem that the surface layer of existing zinc-rich anti-corrosion coatings is easily damaged. Or the problem of easy cracking, improve the anti-corrosion effect and performance

Method used

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  • High-flash-point high-solid-content safe flaky zinc-based zinc-rich coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This example provides a high-flash point, high-solid-safe, flaky zinc-based zinc-rich coating, which is made of the following raw materials in terms of mass percentage:

[0044] Low molecular weight epoxy resin, 10wt%;

[0045] Nonylphenol, 2wt%;

[0046] Carbon dodecyl-tetradecyl glycidyl ether, 3wt%;

[0047] Hydrogenated castor oil, 0.8wt%;

[0048] Flake zinc powder, 71wt%;

[0049] Anti-rust pigment JRM, 4wt%;

[0050] Benzyl alcohol, 4.2 wt%;

[0051] Curing agent, 5wt%.

[0052] Further, the curing agent is a modified amine curing agent.

[0053] Further, in terms of mass percentage, the modified ammonium curing agent is made of the following raw materials:

[0054] Benzyl alcohol, 15wt%;

[0055] Isophoronediamine, 15wt%;

[0056] Low molecular weight epoxy resin, 12wt%;

[0057] Polyoxypropylene diamine, 55wt%;

[0058] 2,4,6-tris(dimethylaminomethyl)phenol, 3wt%.

[0059] Further, the model of the low molecular weight epoxy resin is E42.

[0060] ...

Embodiment 2

[0075] This example provides a high flash point and high solid content safe scaly zinc-based zinc-rich coating, which is made from the following raw materials in terms of mass percentage:

[0076] Low molecular weight epoxy resin, 11wt%;

[0077] Nonylphenol, 3wt%;

[0078] Carbon dodecyl-tetradecyl glycidyl ether, 2wt%;

[0079] Hydrogenated castor oil, 0.8wt%;

[0080] Flake zinc powder, 65wt%;

[0081] Anti-rust pigment JRM, 10wt%;

[0082] Benzyl alcohol, 3.2wt%;

[0083] Curing agent, 5wt%.

[0084] Further, the curing agent is a modified amine curing agent.

[0085] Further, in mass percent, the modified ammonium curing agent is made from the following raw materials:

[0086] Benzyl alcohol, 15wt%;

[0087] Isophoronediamine, 18wt%;

[0088] Low molecular weight epoxy resin, 11wt%;

[0089] Polyoxypropylene bisamine, 53.5wt%;

[0090] 2,4,6-Tris(dimethylaminomethyl)phenol, 2.5 wt%.

[0091] Further, the model of the low molecular weight epoxy resin is E44.

...

Embodiment 3

[0107] This example provides a high flash point and high solid content safe scaly zinc-based zinc-rich coating, which is made from the following raw materials in terms of mass percentage:

[0108] Low molecular weight epoxy resin, 12wt%;

[0109] Nonylphenol, 2.2wt%;

[0110] Carbon dodecyl-tetradecyl glycidyl ether, 2wt%;

[0111] Hydrogenated castor oil, 0.7wt%;

[0112] Flake zinc powder, 55wt%;

[0113] Anti-rust pigment JRM, 20wt%;

[0114] Benzyl alcohol, 3.1 wt%;

[0115] Curing agent, 5wt%.

[0116] Further, the curing agent is a modified amine curing agent.

[0117] Further, in mass percent, the modified ammonium curing agent is made from the following raw materials:

[0118] Benzyl alcohol, 15wt%;

[0119] Isophoronediamine, 20wt%;

[0120] Low molecular weight epoxy resin, 10wt%;

[0121] Polyoxypropylene bisamine, 52.6wt%;

[0122] 2,4,6-Tris(dimethylaminomethyl)phenol, 2.4 wt%.

[0123] Further, the model of the low molecular weight epoxy resin is E51....

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Abstract

The invention discloses a high-flash-point high-solid-content safe flaky zinc-based zinc-rich coating and a preparation method thereof. The flaky zinc-based zinc-rich coating is prepared from the following raw materials: 10-20wt% of low-molecular-weight epoxy resin; 2 to 5 wt% of nonylphenol; 2 to 5 wt% of dodecyl-tetradecyl glycidyl ether; 0.5 to 1 wt% of hydrogenated castor oil; 50 to 70 wt% offlaky zinc powder; 5-25 wt% of an antirust pigment JRM; 2-5 wt% of benzyl alcohol; and 5-10 wt% of a modified amine curing agent. The flaky zinc-based zinc-rich coating prepared according to the invention has the characteristics of high solid content and high flash point, solves the problem that the surface layer of the existing zinc-rich anticorrosive coating is easy to damage or crack, and improves the anticorrosive effect and performance.

Description

technical field [0001] The invention relates to the field of anti-corrosion coatings, in particular to a high-flash point, high-solid-content safe scale zinc-based zinc-rich coating and a preparation method thereof. Background technique [0002] In the field of anticorrosion of the surface layer of iron and steel materials, it is well known that anticorrosion coatings with different components are used to achieve anticorrosion of the surface layer of the material. For material anti-corrosion engineering, anti-corrosion coatings have been playing an important role due to their advantages such as simple and convenient construction process, significant effect, low cost, outstanding performance and long life. In the process of researching and improving the anticorrosion performance of anticorrosion coatings, the inventors have found that the anticorrosion coatings in the prior art have at least the following problems: [0003] The anti-corrosion mechanism of traditional zinc-ri...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/20
CPCC08K2003/0893C09D5/106C09D163/00C09D7/20C08K7/00C08K3/08
Inventor 汪中伟吉富华张其勇
Owner HUAIAN PAINT MFG FACTORY
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