Acid-rain-resistant waterborne anticorrosive coating for steel structures and preparation method thereof

A technology for anti-corrosion coatings and steel structures, applied in anti-corrosion coatings, coatings, etc., can solve the problems of poor paint film and anti-corrosion effect, and achieve the effect of strong adhesion, low price and good adhesion

Inactive Publication Date: 2019-12-27
湖州市南浔联谊喷涂厂
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain excellent corrosion resistance, the rust on the steel must be removed before painting, otherwise the paint film and anti-corrosion effect will be poor due to the continuous expansion of rust

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
  • Acid-rain-resistant waterborne anticorrosive coating for steel structures and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An acid rain-resistant water-based anticorrosive coating for steel structures, including the following components by weight percentage:

[0035] Acrylic emulsion 28%

[0036] pH adjuster 0.3%

[0037] Homemade slurry 26%

[0038] Film forming aid 6%

[0039] Defoamer 0.15%

[0040] Anti-flash rust additives 0.8%

[0041] Thickener 0.12%

[0042] Water margin.

[0043] The pH regulator is 2-amino-2-methyl-1-propanol; the film-forming aid is Eastman Texanol; the defoamer is Tego 1488; the anti-flash The rust additive is Deqian FA-179; the thickener is Wanhua Chemical A401.

[0044] The self-made slurry includes the following ingredients by weight percentage:

[0045] Dispersant 2.8%

[0046] Wetting agent 0.25%

[0047] pH regulator 0.22%

[0048] Masterbatch 5.5%

[0049] Marble powder 8%

[0050] Zinc powder 10%

[0051] Mica powder 12%

[0052] Zinc phosphate 1.5%

[0053] Modified carbon black 1.8%.

[0054] In the self-made slurry, the dispersant is polyacrylic acid ammonium salt dispersant...

Embodiment 2

[0060] An acid rain-resistant water-based anticorrosive coating for steel structures, including the following components by weight percentage:

[0061] Acrylic emulsion 25%

[0062] pH adjuster 0.5%

[0063] Homemade slurry 30%

[0064] Film forming aid 4%

[0065] Defoamer 0.2%

[0066] Anti-flash rust additives 0.5%

[0067] Thickener 0.15%

[0068] Water margin.

[0069] The pH regulator is 2-amino-2-methyl-1-propanol; the film-forming aid is Eastman Texanol; the defoamer is Tego 1488; the anti-flash The rust additive is Deqian FA-179; the thickener is Wanhua Chemical A401.

[0070] The self-made slurry includes the following ingredients by weight percentage:

[0071] Dispersant 3%

[0072] Wetting agent 0.1%

[0073] pH adjuster 0.25%

[0074] Masterbatch 3%

[0075] Marble powder 10%

[0076] Zinc powder 8%

[0077] Mica powder 15%

[0078] Zinc phosphate 1%

[0079] Modified carbon black 2%

[0080] In the self-made slurry, the dispersant is polyacrylic acid ammonium salt dispersant; the wettin...

Embodiment 3

[0085] An acid rain-resistant water-based anticorrosive coating for steel structures, including the following components by weight percentage:

[0086] Acrylic emulsion 35%

[0087] pH adjuster 0.2%

[0088] Homemade slurry 20%

[0089] Film forming aid 8%

[0090] Defoamer 0.1%

[0091] Anti-flash rust additives 1%

[0092] Thickener 0.1%

[0093] Water margin.

[0094] The acrylic emulsion is Dow BESTWIN 0639; the pH adjusting agent is 2-amino-2-methyl-1-propanol; the film-forming aid is Eastman Texanol; the defoaming agent The agent is Tego 1488; the anti-flash rust additive is Deqian FA-179; the thickener is Wanhua Chemical A401.

[0095] The self-made slurry includes the following ingredients by weight percentage:

[0096] Dispersant 2%

[0097] Wetting agent 0.3%

[0098] pH adjuster 0.15%

[0099] Color masterbatch 8%

[0100] Marble powder 5%

[0101] Zinc powder 12%

[0102] Mica powder 10%

[0103] Zinc phosphate 3%

[0104] Modified carbon black 1%

[0105] In the self-made slurry, the dis...

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
particle size (mesh)aaaaaaaaaa
Login to view more

Abstract

The invention discloses acid-rain-resistant waterborne anticorrosive coating for steel structures. The coating comprises the following main components: 25 to 35 percent of acrylic emulsion, 0.2 to 0.5percent of a pH regulator, 20 to 30 percent of self-made slurry, 4 to 8 percent of a coalescing agent, 0.1 to 0.2 percent of a defoaming agent, 0.5 to 1 percent of a flash rust prevention additive, and 0.1 to 0.15 percent of a thickening agent, with the balance being water. Through the interaction of the components, a solid complex is formed on the metal surface, so that a layer of compound filmwhich is compactly bonded by chemical bonds and physics is generated on the steel surface, and the acid rain resistance and the salt mist resistance are lasting; the anticorrosive coating provided bythe invention is refined by adopting an advanced process, has the advantages of low price, good coating film hardness, no bubbling, no gloss loss and the like under the condition of acid rain, good adhesion to steel and good adhesion to various primers, and can also be used as primer-topcoat coating.

Description

Technical field [0001] The invention relates to the technical field of steel surface anticorrosive coating, in particular to an acid rain-resistant water-based anticorrosive coating for steel structures and a preparation method thereof. Background technique [0002] According to statistics, my country's annual direct economic losses due to metal corrosion account for about 4% of the gross national product. Therefore, the problem of metal corrosion prevention has attracted more and more attention. In the previous metal anti-corrosion coating technology, the metal surface pretreatment before painting accounted for about 45% of the total cost of the entire coating project. In order to protect steel from corrosion and extend its service life, anti-corrosion coating on steel has become the most economical and effective method. In order to obtain excellent corrosion resistance, the rust on the steel must be removed before painting, otherwise the paint film and anti-corrosion effect w...

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): C09D133/04C09D5/10C09D7/62C09D7/61
CPCC08K2003/0893C08K2003/328C09D5/106C09D133/04C09D7/61C09D7/62C09D7/70C08L33/02C08K13/06C08K9/04C08K3/08C08K3/34C08K7/00C08K3/32C08K3/04
Inventor 邱峰
Owner 湖州市南浔联谊喷涂厂
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