Zinc-aluminum composite plating coating and its production

A coating and coating technology, which is applied in the direction of anti-corrosion coatings, rubber derivative coatings, coatings, etc., can solve the problems of reducing the content of metal powder, large coating thickness, poor sealing effect of gas phase and liquid phase media, etc., and achieves a solution The effect of large coating thickness and saving usage

Inactive Publication Date: 2007-11-21
沈阳市航达科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a zinc-aluminum composite coating and a preparation method thereof. This coating adopts active zinc-aluminum greater than 99%, and the purity of metal zinc-aluminum is 99.9%. % of ultra-fine flake metal powder, the thickness of which has reached 100 nanometers. The aluminum in the coating is used to protect the zinc, which improves the anti-corrosion efficiency. Under the condition of ensuring excellent anti-corrosion performance, it not only reduces the solid content in the coating and the metal powder content in the paint film, the coating area per kilogram of the paint has reached 4 square meters, and it also solves the problems of conventional heavy-duty anti-corrosion coatings, such as large coating thickness, high metal content, poor surface color, and adverse effects on gas and liquid phases. Problems such as poor sealing effect of the medium

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Wet 30 kg of ultra-fine flaky dry zinc powder, 15 kg of ultra-fine flaky dry aluminum powder, and 30 kg of diluent xylene and soak for 24 hours under normal temperature and pressure conditions, mix and stir evenly.

[0023] Then under the condition of normal temperature and pressure, mix the uniformly stirred ultrafine flaky zinc powder and aluminum powder slurry with 30 kg of methyl acrylate and stir evenly, then add 0.4 kg of anti-settling agent thixotropic leveling agent, 0.4 kg of dispersant Ethyl diallyl ammonium chloride, 0.4 kg of nonionic surfactant (OP10). Stir again at a high speed of 800 rpm to obtain the finished zinc-aluminum composite coating.

Embodiment 2

[0025] Wet 40 kg of superfine flaky solvent-based zinc powder slurry (solid content 60-70%) and 20 kg of ultra-fine flaky solvent-based aluminum powder slurry (solid content 60-70%), and 30 kg of diluent xylene at room temperature Soak under normal pressure for 24 hours, mix and stir evenly.

[0026] Then under the condition of normal temperature and pressure, mix the uniformly stirred ultrafine flaky zinc powder and aluminum powder slurry with 30 kg of methyl acrylate and stir evenly, then add 0.4 kg of anti-settling agent thixotropic leveling agent, 0.4 kg of dispersant Ethyl diallyl ammonium chloride, 0.4 kg of nonionic surfactant (OP10). Stir again at a high speed of 800 rpm to obtain the finished zinc-aluminum composite coating.

Embodiment 3

[0028] Wet 40 kg of superfine flaky solvent-based zinc powder slurry (solid content 60-70%) and 20 kg of ultra-fine flaky solvent-based aluminum powder slurry (solid content 60-70%), and 30 kg of diluent xylene at room temperature Soak under normal pressure for 24 hours, mix and stir evenly.

[0029] Then under the condition of normal temperature and pressure, mix the uniformly stirred ultrafine flaky zinc powder and aluminum powder slurry with 25 kg of high-chlorinated polyethylene and stir evenly, then add 0.4 kg of anti-settling agent thixotropic leveling agent, and 0.4 kg of dispersed Agent diethyl diallyl ammonium chloride, non-ionic surfactant (OP10) 0.4 kg. Stir again at a high speed of 800 rpm to obtain the finished zinc-aluminum composite coating.

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Abstract

A composite aluminum-zinc galvanized coating and its production are disclosed. The coating consists of flake aluminum powder, flake zinc powder, neutral resin, diluting agent, non-ionic surface activator, anti-settling agent and dispersant. The process is carried out by mixing superfine flake dry zinc powder or zinc powder slurry with superfine flake dry aluminum power or aluminum powder slurry and diluting agent, agitating, mixing agitated superfine flake zinc powder with aluminum powder slurry and neutral resin at normal temperature and pressure, agitating, adding into anti-settling agent, dispersant and non-ionic surface activator, and agitating to obtain final product. The metal content of dry film is below 60%, the thickness of coating is 40 um. It saves metal usage, has less coating thickness, good color, more metal content and better gas-phase and liquid-phase medium closing effect.

Description

technical field [0001] The invention relates to a conventional heavy-duty anti-corrosion coating and a preparation method thereof, in particular to a method for solving the problems of conventional heavy-duty anti-corrosion coatings such as large coating thickness, high metal content, poor surface color, and poor sealing effect on gas-phase and liquid-phase media. A zinc-aluminum composite coating and a preparation method thereof. Background technique [0002] At present, conventional heavy-duty anti-corrosion coatings generally have problems such as large coating thickness, high metal content, poor surface color, and poor sealing effect on gas-phase and liquid-phase media. The zinc powder of the usual metal heavy-duty anti-corrosion coatings uses spherical powders, and the powders are arranged irregularly in the coating, which inevitably produces micro-spaces between the powders, resulting in a large gap in the coating structure, which is harmful to the gas phase liquid. P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D123/28C09D125/06C09D115/02C09D7/06C09D7/12C09D5/08C09D7/47
Inventor 殷跃军韩长智
Owner 沈阳市航达科技有限责任公司
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