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A kind of water-based rust coating and preparation method thereof

A water-based technology for rusty coatings, applied in anti-corrosion coatings, coatings, etc., can solve problems such as high cost, harmful to human body, and high labor intensity, and achieve strong compactness, enhanced corrosion resistance, and excellent adhesion.

Active Publication Date: 2017-01-18
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional derusting processes have shortcomings, such as high labor intensity, serious chemical pollution, and high cost. Therefore, rust-coated coatings have become a research hotspot as a new derusting process.
The rust conversion efficiency of the water-based rust-bearing paint prepared by this technical scheme is low, and the raw materials are not environmentally friendly and harmful to the human body

Method used

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  • A kind of water-based rust coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A water-based rusty paint, prepared from the following raw materials in parts by weight: 40 parts of styrene-acrylic emulsion, 2 parts of montmorillonite, 10 parts of phytic acid, 6 parts of pyrogallic acid, and 1 part of simethicone , 1 part of sodium alginate, 0.5 part of ethylene glycol, 0.5 part of polyacrylamide, 0.5 part of AP-38000, 1 part of zinc phosphate, 40-50 parts of water.

[0025] The preparation method comprises the following steps:

[0026] (1) Mix water, montmorillonite and zinc phosphate and grind to a fineness of 30-40 microns, add phytic acid and pyrogallic acid and mix evenly, heat to 60°C, stir until completely dissolved, and set aside;

[0027] (2) Add the hot mixed solution prepared in step (1) dropwise to the styrene-acrylic emulsion under constant stirring. After the addition is completed, continue to stir at room temperature for 20 minutes, add simethicone, sodium alginate, Ethylene glycol, polyacrylamide and AP-3800 are also stirred at room...

Embodiment 2

[0029] A water-based rusty paint, prepared from the following raw materials in parts by weight: 43 parts of styrene-acrylic emulsion, 4 parts of montmorillonite, 12 parts of phytic acid, 7 parts of pyrogallic acid, and 1 part of simethicone , 1 part of agar, 1 part of ethylene glycol, 0.8 part of polyacrylamide, 0.7 part of AP-38000, 1 part of titanium dioxide, 40-50 parts of water.

[0030] The preparation method comprises the following steps:

[0031] (1) Mix water, montmorillonite and titanium dioxide, grind to a fineness of 30-40 microns, add phytic acid and pyrogallic acid, mix evenly, heat to 60°C, stir until completely dissolved, and set aside;

[0032] (2) Add the hot mixed solution prepared in step (1) dropwise to the styrene-acrylic emulsion under constant stirring, continue stirring for 20 minutes at room temperature after adding, add simethicone, agar, ethylene Ethylene glycol, polyacrylamide and AP-3800 are also stirred at room temperature for 20 to 30 minutes to...

Embodiment 3

[0034] A water-based rusty paint, prepared by the following raw materials in parts by weight: 45 parts of styrene-acrylic emulsion, 6 parts of montmorillonite, 15 parts of phytic acid, 8 parts of pyrogallic acid, and 2 parts of simethicone , 2 parts of silicone gel, 2 parts of ethylene glycol, 1 part of polyacrylamide, 0.7 parts of AP-38000, 2 parts of zinc yellow, 40-50 parts of water.

[0035] The preparation method comprises the following steps:

[0036] (1) Mix water, montmorillonite and zinc yellow, grind to a fineness of 30-40 microns, add phytic acid and pyrogallic acid, mix evenly, heat to 70°C, stir until completely dissolved, and set aside;

[0037] (2) Add the hot mixed solution prepared in step (1) dropwise to the styrene-acrylic emulsion under the condition of constant stirring. After the addition, continue to stir at room temperature for 25 minutes, add simethicone, silicone gel, Ethylene glycol, polyacrylamide and AP-3800 are also stirred at room temperature fo...

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PUM

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Abstract

The invention discloses a water-based residual rust paint and a preparation method thereof. The paint is prepared from the following raw materials: styrene-acrylic emulsion, montmorillonoid, a transforming agent, a transforming accelerant, a defoaming agent, a thickener, a freezing and thawing stabilizer, a dispersant, an adhesion promoter, pigment and water. The preparation method comprises the following steps: mixing the water, the montmorillonoid and the pigment, grinding the obtained mixture, adding the transforming agent and the transforming accelerant, and uniformly mixing; heating and stirring until the materials are completely dissolved; adding the mixture obtained from the former step to the styrene-acrylic emulsion drop by drop; stirring for 20-30min at room temperature; and adding the defoaming agent, the thickener, the freezing and thawing stabilizer, the dispersant and the adhesion promoter, and further stirring for 20-30min at room temperature to obtain the water-based residual rust paint. The water-based residual rust paint disclosed by the invention is non-toxic and environmental friendly, and excellent in adhesion; and the paint, by virtue of the montmorillonoid, is stronger in compactness and the corrosion resistance effect of the paint is enhanced.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a water-based rusty coating and a preparation method thereof. Background technique [0002] Corrosion of steel materials will not only affect the use of steel, but also greatly damage its appearance. Coating a layer of protective layer on the surface of the steel can inhibit the steel from continuing to rust, and a thorough derusting treatment must be carried out before the protective layer is applied. Traditional derusting processes have shortcomings, such as high labor intensity, serious chemical pollution, and high cost. Therefore, rust-coated coatings have become a research hotspot as a new derusting process. [0003] Rust paint can be used as a metal primer. When using it, it only needs to remove the floating rust on the rusty surface, and then it can be directly painted on the rusty metal surface. Black film layer, thus transforming harmful substances into beneficial substances. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D5/08C09D7/12
CPCC08K2003/2241
Inventor 程璐刘艳菲徐小东荆旺刘国旭岳少哲
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD