Hydrophilic nano zinc based composite coating

A composite coating and nano-zinc technology, used in anti-corrosion coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of metal corrosion weather resistance, difficult weather resistance and adhesion at the same time. Environmental pollution and other problems, to achieve the effect of excellent metal corrosion resistance, strong weather resistance, and a wide range of applications

Inactive Publication Date: 2009-12-30
YUNNAN GREAT IND DEV
View PDF0 Cites 67 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, people are unremittingly committed to the research of metal anti-corrosion, put forward many metal anti-corrosion methods, and produced many anti-metal corrosion products. These methods and products have made a very positive contribution to the prevention of metal corrosion. , but as far as a single method or product is concerned, none of them can solve the weather resistance and adhesion problems of preventing metal corrosion well at the same time, and at the same time meet the requirements of convenient use, high efficiency, energy saving and environmental protection
Electroplating, hot plating, chemical plating and other methods to prevent corrosion of metal parts will cause direct or indirect environmental pollution during the pretreatment of the metal surface. Conventional coatings are difficult to effectively solve the problems of weather resistance and adhesion. The newly invented "high resistance Corrosion non-water-soluble zinc-based nano-anti-corrosion coatings", which use lipids, alcohols and other organic substances as dispersion media, belong to solvent-based nano-anti-corrosion coatings, "zinc-based water-soluble anti-corrosion coatings on metal surfaces" use chromic acid compounds, "WL "Water-dispersible zinc chromate anti-corrosion coatings" also use chromic acid compounds, etc., these inventions will inevitably cause pollution to the environment due to organic solvent volatilization or hexavalent chromium; another example is "non-electrolytic metal anti-corrosion coatings" Nanotechnology is not used to improve the anti-corrosion performance of coatings, but molybdate and tungstate are used to enhance the anti-corrosion performance of coatings

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrophilic nano zinc based composite coating
  • Hydrophilic nano zinc based composite coating
  • Hydrophilic nano zinc based composite coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The parts by weight of each component of water-based nanometer zinc-based composite coating of the present invention are as table 1:

[0020] Table 1

[0021]

[0022] Prepare components A, B, and C according to the formula listed in the table, mix and stir the two components of A and B, then add component C, mix and stir evenly, and pack to obtain the finished water-based nano zinc-based composite coating. In order to prolong the shelf life of the paint, the present invention can also package components A, B and C separately for use. When using, first mix A and B components and stir evenly, then add C component and mix and stir evenly.

[0023] After the coating is applied on the surface of metal parts, it can be baked at a temperature of 100°C-150°C for 5min-30min to form a strong coating. Grade above (tape test).

Embodiment 2

[0025] The parts by weight of each component of the water-based nanometer zinc-based composite paint of the present invention are as shown in Table 2

[0026] Table 2

[0027]

[0028] Prepare components A, B, and C according to the formula listed in the table, mix and stir the two components of A and B, then add component C, mix and stir evenly, and pack to obtain the finished water-based nano zinc-based composite coating. In order to prolong the shelf life of the paint, the present invention can also package components A, B and C separately for use. When using, first mix A and B components and stir evenly, then add C component and mix and stir evenly.

[0029] After the coating is applied on the surface of metal parts, it can be baked at a temperature of 120°C-200°C for 20 minutes to form a strong coating. The coating's neutral salt spray test time can reach more than 800h, and the coating adhesion can reach level 4 or above. (tape test).

Embodiment 3

[0031] The parts by weight of each component of the water-based nanometer zinc-based composite coating of the present invention are as table 3

[0032] table 3

[0033]

[0034] Prepare components A, B, and C according to the formula listed in the table, mix and stir the two components of A and B, then add component C, mix and stir evenly, and pack to obtain the finished water-based nano zinc-based composite coating. In order to prolong the shelf life of the paint, the present invention can also package components A, B and C separately for use. When using, first mix A and B components and stir evenly, then add C component and mix and stir evenly.

[0035] After the coating is applied on the surface of metal parts, it can be baked at a temperature of 120°C-250°C for 10min-20min to form a strong coating. Grade above (tape test).

[0036] The technical scheme of the present invention (comprising above-mentioned embodiment) is to facilitate the preparation of B component, he...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of chemical engineering coatings and particularly relates to a hydrophilic nano zinc based composite coating used for preventing corrosion on the surfaces of the metal parts. The coating comprises an emulsifier, a dispersant, an antifoaming agent, scaly metallic powder, nano oxides, a silane coupler, an alcohol-type solvent, a high-molecule organic material, a thickener and 30.0 to 60.0 percent of water serving as a disperse medium. The coating can be coated by spraying, brushing, soaking and soaking-centrifugal coating and other methods, and the coating can be formed by being roasted at a temperature of about 200 DEG C for 20 minutes. Neutral salt spray corrosion resistant tests show that the neutral salt spray corrosion resistant time is more than 800h, the binding force is proved to be above level 4 (by an adhesive band test). The coating has the advantages of environmental pollution prevention, excellent metallic corrosion resistant property, economy and practicability and convenient use; and moreover, the coating can be widely used for the corrosion resistant treatment of the surface of metal parts made of iron, aluminum, copper and magnesium alloy and the like, particularly the corrosion resistant treatment of metal parts with complex geometric shapes.

Description

1. Technical field [0001] The invention belongs to the technical field of chemical and chemical coatings, and in particular relates to a water-based nano zinc-based anti-corrosion composite coating for the surface of metal parts. 2. Background technology [0002] Corrosion of metal is a very common natural phenomenon. It pervades all fields of national economic construction and devours a large amount of non-renewable resources on the earth. According to incomplete statistics, the economic losses caused by metal corrosion in the world are as high as trillions every year. Dollar. Therefore, people are unremittingly committed to the research of metal anti-corrosion, put forward many metal anti-corrosion methods, and produced many anti-metal corrosion products. These methods and products have made a very positive contribution to the prevention of metal corrosion. , but with regard to a single method or product, all of them fail to solve the weather resistance and adhesion probl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D183/00C09D7/12C09D5/08C09D5/02
Inventor 张俊敏王承琪李建明张宏
Owner YUNNAN GREAT IND DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap