Steel structure aqueous corrosion resisting paint without need of cleaning rust and preparation thereof

A technology for anti-corrosion and anti-corrosion coatings with rust, which is applied in the direction of anti-corrosion coatings, coatings, and devices for coating liquid on the surface. Improve the coating environment, shorten the drying time, and facilitate construction

Inactive Publication Date: 2008-12-17
HUNAN UNIV
View PDF1 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the existing more successful water-based anti-corrosion coatings all are that the base paint is painted separately, and the construction is cumbersome, and the matching problem of the base paint must also be considered. If the base paint is not matched, it will affect the bonding of the base paint, affect the Corrosion resistance of coatings
However, the current water-based anti-corrosion paint with rust that combines the bottom and surface has certain requirements on the substrate, and the thickness of the rust layer is required to be less than 80 μm, and the price of the selected raw materials is relatively high, which increases the cost of the paint.

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
  • Steel structure aqueous corrosion resisting paint without need of cleaning rust and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]33.0% styrene-acrylic emulsion, 2.5% iron oxide, 9.0% talcum powder, 2.5% zinc phosphate, 2.0% zinc oxide, 1.0% aluminum hydroxide, 19.0% phosphoric acid, 5.5% tannic acid, 0.075% zinc dihydrogen phosphate, weight Sodium chromate 0.125%, film-forming aid 2.0%, dibutyl phthalate 1.45%, sodium hexametaphosphate 0.6%, defoamer 0.3%, water added to 100%.

[0032] The preparation process of this embodiment is:

[0033] (1) First mix phosphoric acid, aluminum hydroxide, zinc oxide, and tannic acid, and stir while heating until the solution is clear to obtain a conversion solution, and let it stand for a while.

[0034] (2) mixing and stirring iron oxide, talcum powder, zinc phosphate and water to prepare pigment and filler slurry;

[0035] (3) Mix the conversion liquid, pigment and filler slurry with film-forming substances, corrosion inhibitors, defoamers (2 / 3 of the dosage) and other additives, and stir for two hours at a speed of 3000r / min to obtain Slurry, then add film-...

Embodiment 2

[0037] 35.0% styrene-acrylic emulsion, 2.3% iron oxide, 8.0% talc, 2.5% zinc phosphate, 1.5% zinc oxide, 1.1% aluminum hydroxide, 19.0% phosphoric acid, 5.5% tannic acid, 0.075% zinc dihydrogen phosphate, weight Sodium chromate 0.125%, sodium hexametaphosphate 0.7%, film-forming aid 2.0%, dibutyl phthalate 1.4%, defoamer 0.35%, water added to 100%.

[0038] The preparation process of this embodiment is the same as that of Example 1.

Embodiment 3

[0040] Styrene-acrylic emulsion 38.0%, iron oxide 2.2%, talc powder 10.0%, zinc phosphate 3.0%, zinc oxide 1.8%, aluminum hydroxide 1.0%, phosphoric acid 18.5%, tannic acid 5.8%, zinc dihydrogen phosphate 0.1%, chromium 0.3% sodium hexametaphosphate, 0.6% sodium hexametaphosphate, 2.5% coalescent, 1.4% dibutyl phthalate, 0.36% defoamer, and water to 100%.

[0041] The preparation process of this embodiment is the same as that of Example 1.

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

No PUM Login to view more

Abstract

The invention relates to a water-base rusting anti-corrosion paint of a steel structure, and a manufacturing technology thereof. The water-base rusting paint comprises styrene-acrylic latex, ferric oxide, talcum powder, phosphoric acid, tannin, aluminum hydroxide, zinc oxide, zinc dihydric phosphate, potassium dichromate, a film-forming auxiliary agent, sodium hexametaphosphate, dibutyl phthalate, an antifoam agent and water which is added till 100 percent (mass). The preparation method of the paint of the invention is that a pigment filler is added into a ball mill to prepare pigment filler slurry according to a mixing ratio, the phosphoric acid, the tannin, the zinc oxide and the aluminum hydroxide are mixed and heated till the solution is clear so as to prepare transformation liquid, then the pigment filler slurry and the transformation liquid and other components are mixed and stirred, and finally a finished product is obtained after filtration. The paint of the invention is characterized by good performance and low cost, etc., can be used for hull painting with rust directly, and can be used not only as a base paint, but also as a surface paint.

Description

technical field [0001] The invention relates to a steel structure water-based anticorrosion coating with rust and a preparation method thereof, belonging to new materials in the coating field of the chemical industry. Background technique [0002] Because steel structure has a series of advantages such as high strength, good toughness, convenient manufacture, fast construction speed and short construction period, it has been more and more widely used in modern construction industry. However, its easy-to-corrosion characteristics have brought huge losses to the national economy. Spraying steel structure anti-corrosion paint is one of the most economical and reasonable measures in steel structure anti-corrosion measures. [0003] When general steel structures are painted with anti-corrosion coatings, there is already a certain thickness of corrosion layer on part of the surface. For ordinary anti-corrosion coatings, the rust must be completely removed so that the coatings are...

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): C09D125/08C09D5/02C09D5/08C09D7/12B05D7/14
Inventor 龚建清陆小玲
Owner HUNAN UNIV
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