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Water-based metallic anticorrosion coating film and preparation method thereof

A metal anti-corrosion, water-based technology, applied in the direction of anti-corrosion coatings, coatings, latex paints, etc., can solve the problems that the anti-corrosion effect is not well resolved, the anti-corrosion effect cannot be achieved, and the dispersion of the coating film is poor, so as to achieve non-polluting anti-corrosion performance , safe to use, good water resistance effect

Inactive Publication Date: 2017-10-10
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also many studies on water-based anti-corrosion coatings, but the anti-corrosion effect has not been well resolved
[0003] Although water-based corrosion-resistant metal coatings are very mature in terms of production process and raw material selection, in the process of use, due to differences in the control of raw material ratios, it has an impact on adhesion and flexibility, and the dispersion of the coating film is poor. Form a dense protective film to isolate the external environment, and cannot achieve long-term anti-corrosion effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh each component by weight percentage

[0020] Water-based modified SD-800 styrene-acrylic emulsion 45%, defoamer 0.05%, thickener 0.2%, dispersant 1%, wetting agent 0.2%, butyl glycol ether 0.5%, dodecanoate 3%, Aluminum tripolyphosphate 8%, zinc phosphate 8%, titanium dioxide 4%, talcum powder 8%, bentonite 0.8%, anti-flash rust agent 0.1%, ammonia 0.25%, deionized water 20.9%.

[0021] The preparation method is:

[0022] Step (1): Mix dispersant, deionized water, wetting agent, ammonia water, butyl glycol ether, dodecyl carbonate, thickener, and defoamer into the reactor, at a speed of 600r / min Next, stir for 15 minutes, mix well;

[0023] Step (2): Mix aluminum tripolyphosphate, zinc phosphate, talcum powder, titanium dioxide, bentonite, and anti-flash rust agent into the mixture obtained in step (1), add glass beads to grind, and grind at a speed of 2800r / min , stirred for 75min;

[0024] Step (3): Add thickener, defoamer, and water-based modified SD-800 st...

Embodiment 2

[0027] Weigh each component by weight percentage

[0028] Water-based modified SD-800 styrene-acrylic emulsion 50%, defoamer 0.06%, thickener 0.18%, dispersant 1.5%, wetting agent 0.3%, butyl glycol ether 1%, dodecanoate 2%, Aluminum tripolyphosphate 6%, zinc phosphate 10%, titanium dioxide 4.3%, talcum powder 7.5%, bentonite 1%, anti-flash rust agent 0.3%, ammonia 0.5%, deionized water 15.36%.

[0029] The preparation method is:

[0030] Step (1): Mix dispersant, deionized water, wetting agent, ammonia water, butyl glycol ether, dodecanoic acid ester, thickener, and defoamer into the reactor, at a speed of 700r / min Next, stir for 18min, mix well;

[0031] Step (2): Mix aluminum tripolyphosphate, zinc phosphate, talcum powder, titanium dioxide, bentonite, and anti-flash rust agent into the mixture obtained in step (1), add glass beads to grind, and grind at a speed of 3000r / min , stirring for 80min;

[0032] Step (3): Add thickener, defoamer, and water-based modified SD-80...

Embodiment 3

[0035] Weigh each component by weight percentage

[0036] Water-based modified SD-800 styrene-acrylic emulsion 52%, defoamer 0.08%, thickener 0.15%, dispersant 1.8%, wetting agent 0.4%, butyl glycol ether 2%, dodecanoate 1%, Aluminum tripolyphosphate 9%, zinc phosphate 7%, talcum powder 7%, titanium dioxide 4.8%, bentonite 1.5%, anti-flash rust agent 0.4%, ammonia 0.75%, deionized water 12.12%.

[0037] The preparation method is:

[0038] Step (1): Add dispersant, deionized water, wetting agent, ammonia water, butyl glycol ether, dodecanoic acid ester, thickener and defoamer into the reactor, at a speed of 800r / min Next, stir for 20min, mix well;

[0039] Step (2): Mix aluminum tripolyphosphate, zinc phosphate, talcum powder, titanium dioxide, bentonite, and anti-flash rust agent into the mixture obtained in step (1), add glass beads to grind, and grind at a speed of 3200r / min , stirred for 90min;

[0040] Step (3): Add thickener, defoamer, and water-based modified SD-800 ...

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PUM

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Abstract

The invention provides a water-based metallic anticorrosion coating film and a preparation method thereof. The coating film is prepared from the following raw materials by weight percent: 45-55% of water-based modified SD-800 styrene-acrylic emulsion, 0.05-0.1% of a de-foaming agent, 0.1-0.2% of a thickening agent, 1-2% of a dispersing agent, 0.1-0.5% of a wetting agent, 0.5-3% of butyl cellosolve, 0.5-3% of dodecyl carbonate, 6-12% of aluminum triphosphate, 4-10% of zinc phosphate, 4-5% of titanium dioxide, 6-8% of talcum powder, 0.5-2% of bentonite, 0.1-0.8% of an anti-flash rusting agent, 0.25-1% of ammonium hydroxide and 8-20.9% of deionized water. The prepared water-based metallic anticorrosion coating film is nontoxic, odorless and environment-friendly, has the characteristics of high water resistance, acid resistance, alkali resistance, salt tolerance and manual ageing resistance, is safe and convenient in use, is pollution-free and is a new low-cost ideal anticorrosion coating product.

Description

technical field [0001] The invention belongs to the field of anticorrosion coatings for steel materials, and in particular relates to a water-based metal anticorrosion coating film and a preparation method thereof. Background technique [0002] In recent years, surveys have found that metal corrosion has brought huge economic losses to the world. About 20% of the world's steel cannot be recycled due to corrosion. The problem of metal corrosion and protection has also been widely concerned. There are also many studies on water-based anti-corrosion coatings, but the anti-corrosion effect has not been well resolved. [0003] Although water-based corrosion-resistant metal coatings are very mature in terms of production process and raw material selection, in the process of use, due to differences in the control of raw material ratios, it has an impact on adhesion and flexibility, and the dispersion of the coating film is poor. A dense protective film is formed to isolate the ext...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D5/08C09D5/02C09D7/12
CPCC09D125/14C08K3/34C08K3/346C08K5/06C08K2003/2241C08K2003/327C08K2003/328C09D5/024C09D5/08
Inventor 郭惠霞毛小林李晨
Owner NORTHWEST NORMAL UNIVERSITY
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