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Preparation process of inorganic copper imitation coating and process for replacing protective and decorative copper layer of metal surface with inorganic copper imitation coating

An inorganic coating and preparation process technology, which is used in the field of replacing copper plating, the preparation process of imitating copper inorganic coatings, and replacing the protective decorative copper layer on the metal surface to achieve high corrosion resistance, good adhesion, and avoid the problem of galvanic corrosion. Effect

Inactive Publication Date: 2014-03-26
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the application of inorganic non-metallic pigment powder to carry out the preparation of imitation copper coating has not been reported yet

Method used

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  • Preparation process of inorganic copper imitation coating and process for replacing protective and decorative copper layer of metal surface with inorganic copper imitation coating
  • Preparation process of inorganic copper imitation coating and process for replacing protective and decorative copper layer of metal surface with inorganic copper imitation coating
  • Preparation process of inorganic copper imitation coating and process for replacing protective and decorative copper layer of metal surface with inorganic copper imitation coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of preparation of imitation copper inorganic coating and the technology that is used to replace metal surface protective decorative copper layer, concrete steps are as follows:

[0031] Add 30g of potassium silicate with a modulus of 2.35 to 10g of water at 15°C, stir for 10 minutes, then add 5g of silica sol with a particle size of 5.0nm and stir for 10 minutes under stirring, add 3ml of iso Butyltriethoxysilane coupling agent and 1ml epoxy silane coupling agent were placed on a mixer and stirred for 1 hour, then 2g of fumed silica with a particle size of 6.0nm was added, and stirring was continued for 3 hours to obtain liquid A Add 5g bronze color pearlescent pigment powder and 0.5g potassium tripolyphosphate wetting and dispersing agent and 0.2g tetrapotassium pyrophosphate wetting and dispersing agent in 10g water, stir to disperse evenly after 6 hours, make the good pigment water dispersion of water dispersion liquid, and then add it into the liquid A, stir ...

Embodiment 2

[0033] A kind of preparation of imitation copper inorganic coating and the technology that is used to replace metal surface protective decorative copper layer, concrete steps are as follows:

[0034] Add 35g of potassium silicate with a modulus of 2.55 to 15g of water at 20°C, stir for 15 minutes, then add 10g of silica sol with a particle size of 10nm and stir for 15 minutes under stirring, add 4ml of vinyl after stirring Silane coupling agent and 2ml of methacryloyloxysilane coupling agent were placed on a mixer and stirred for 1 hour, then 4g of fumed silica with a particle size of 10nm was added, and stirring was continued for 1 hour to obtain liquid A; Add 6g of bronze-colored pearl pigment powder, 4g of bronze-colored mica pigment powder and 0.6g of tetrapotassium pyrophosphate wetting and dispersing agent, stir for 8 hours until the dispersion is uniform, and prepare a water-dispersed pigment water dispersion, and then add it to liquid A , and stir for 1 hour until the ...

Embodiment 3

[0036] A kind of preparation of imitation copper inorganic coating and the technology that is used to replace metal surface protective decorative copper layer, concrete steps are as follows:

[0037] Add 40g of potassium silicate with a modulus of 2.85 to 20g of water at 25°C, stir for 20 minutes, then add 15g of silica sol with a particle size of 15nm and stir for 20 minutes under stirring, add 5ml of aminosilane after stirring Coupling agent, put on the mixer and stir for 2 hours and add 6g of fumed silica with a particle diameter of 15nm, continue to stir for 2 hours to prepare A liquid; add 8g of bronze mica pigment powder, 2g of bronze color talc pigment powder and 0.8g of polypropylene sodium salt wetting and dispersing agent, stirred for 10 hours until uniformly dispersed, prepared a water-dispersed pigment aqueous dispersion, then added to liquid A, stirred for 2 hours until uniformly stirred to obtain Imitation copper inorganic non-metal coating. Carry out chemical d...

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Abstract

The invention provides a preparation process of an inorganic copper imitation coating and a process for replacing a protective and decorative copper layer of a metal surface with the inorganic copper imitation coating, and belongs to the field of metal protection and decoration. The preparation process of the inorganic copper imitation coating comprises the following steps of: by taking potassium silicate and silica sol as adhesives of the coating, adding fumed silica as filler of the coating to a mixed solution of potassium silicate and silica sol; then adding a silane coupling agent and a wetting dispersant as assistants used for improving the coating performance; finally adding antique brass pigment fillers to obtain the copper imitated inorganic silicate coating. The coating prepared by the method can replace the protective and decorative copper layer of the metal surface, and is applicable to the field of metal protection and decoration. The inorganic copper imitation coating prepared by the method is high in protection and decoration performance, avoids galvanic corrosion caused by the copper layer, saves the protection cost, has performance superior to a copper coating, and also has the advantages of being low in cost, environment-friendly, high in corrosion resistance, high in cohesion, etc.

Description

technical field [0001] The invention belongs to the field of metal protection and decoration, and relates to a preparation process of a copper imitation inorganic paint and a process for using it to replace a protective decorative copper layer on a metal surface, and is suitable for replacing a copper plating layer when no conductivity is required. Background technique [0002] In the field of industrial production, metal materials are relatively prone to corrosion during use, and the corrosion of metal materials has brought very serious losses to people. Therefore, the corrosion and protection of metal materials has naturally become the main research object of corrosion scientists and coating engineers. CN 102877063 A mentions the multilayer composite protective coating on the surface of magnesium alloy and its preparation method. Firstly, plasma electrolytic oxidation is performed on the surface of the magnesium alloy substrate to form a porous ceramic layer, and then an o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D7/12C09D5/08B05D7/14B05D3/10
Inventor 李宁刘超军王艳青黎德育
Owner HARBIN INST OF TECH
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