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Waterborne metal anticorrosive coating

A technology for anti-corrosion coatings and metals, applied in anti-corrosion coatings, anti-fouling/underwater coatings, polyurea/polyurethane coatings, etc. Insufficient performance, weather resistance and impact resistance, etc., to achieve the effect of excellent freeze-thaw resistance, good dryness, and bright coating

Inactive Publication Date: 2015-03-18
SHANGHAI YOUMAN NEW MATERIAL SCI & TECHCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with oil-based paints, water-based anti-rust coatings are still insufficient in terms of anti-rust performance, weather resistance, paint film hardness, paint film impact resistance, etc., and the gloss and scratch resistance of the topcoat are lacking. Users are often not easy to accept

Method used

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  • Waterborne metal anticorrosive coating
  • Waterborne metal anticorrosive coating
  • Waterborne metal anticorrosive coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh the materials required for the preparation of water-based metal anti-corrosion coatings: 800 kg of special emulsion for water-based metal anti-corrosion coatings with a glass transition temperature of 20°C, 100 kg of deionized water, 15 kg of nano-titanium dioxide slurry, and 80 kg of film-forming aid DBE , 50 kg of rutile titanium dioxide, 25 kg of 1250 mesh precipitated barium sulfate, appropriate amount of sodium nitrite, appropriate amount of dispersant SN5040, appropriate amount of wetting agent PE100, appropriate amount of defoamer DEG0822, appropriate amount of leveling agent RM2020, rheology modifier bentonite Appropriate amount, appropriate amount of wax emulsion, appropriate amount of DF35, the sum of the percentages of the above components is 100%;

[0030] Step 1. Add the water-based metal anti-corrosion coating special emulsion and film-forming aids into the mixer, and stir for about 30 minutes at a stirring speed of about 500 rpm to prepare a uniforml...

Embodiment 2

[0034] Weigh the materials required for the preparation of water-based metal anti-corrosion coatings: 750 kg of special emulsion for water-based metal anti-corrosion coatings with a glass transition temperature of 25°C, 150 kg of deionized water, 20 kg of nano-zinc oxide slurry, and film-forming aid alcohol 85 kg of ester twelve, 70 kg of rutile titanium dioxide, 20 kg of 1250 mesh precipitated barium sulfate, appropriate amount of sodium nitrite, appropriate amount of dispersant CY540, appropriate amount of wetting agent DOW405, appropriate amount of defoamer DEG0822, appropriate amount of leveling agent RM2020, An appropriate amount of variable modifier bentonite, an appropriate amount of wax emulsion, and an appropriate amount of DF35, the sum of the percentages of the above-mentioned components is 100%;

[0035] Step 1. Add the water-based metal anti-corrosion coating special emulsion and film-forming aids into the mixer, and stir for about 30 minutes at a stirring speed of...

Embodiment 3

[0039] Weigh the materials required for the preparation of water-based metal anti-corrosion coatings: 850 kg of special emulsion for water-based metal anti-corrosion coatings with a glass transition temperature of 0°C, 50 kg of deionized water, 10 kg of film-forming aid BDE, 50 kg of rutile titanium dioxide, 25 kg of 1250 mesh precipitated barium sulfate, appropriate amount of sodium nitrite, appropriate amount of dispersant SN5040, appropriate amount of wetting agent PE100, appropriate amount of defoamer DEG0822, appropriate amount of leveling agent 8W, appropriate amount of rheology modifier bentonite, appropriate amount of wax emulsion, and appropriate amount of DF35 , the sum of the content percentages of the above-mentioned components is 100%;

[0040] Step 1. Add the water-based metal anti-corrosion coating special emulsion and film-forming aids into the mixer, and stir for about 30 minutes at a stirring speed of about 500 rpm to prepare a uniformly mixed first mixed solu...

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Abstract

The invention discloses a waterborne metal anticorrosive coating which is characterized by comprising, by weight, 80% of a waterborne metal anticorrosive coating dedicated emulsion, 10% of deionized water, 2% of nanometer slurry, 20% of fillers, 8% of a film forming auxiliary agent, and a proper amount of a dispersant, a levelling agent, a wetting agent, an antifoaming agent, a rheology modifier, a wax emulsion, and a mildew inhibitor. The preparation method comprises: adding water into the waterborne metal anticorrosive coating dedicated emulsion, stirring uniformly, then adding the nanometer slurry, after 30 min, orderly adding the wetting agent, the antifoaming agent, the levelling agent, the wax emulsion, and finally the rheology modifier, and filtering to obtain the coating. According to the invention, the solvent resistant performance of the coating film is improved by adding a nanomaterial into an antirust coating, the manufacturing process and the application have no adverse effect on human body and the environment, and the waterborne metal anticorrosive coating is a green and environment-friendly product.

Description

technical field [0001] The invention relates to a water-based metal anti-corrosion coating, in particular to a preparation method of the water-based metal anti-corrosion coating. This kind of paint can be used as an anti-rust primer for steel structures and metals at the same time. It has the function of rust transfer, and can also be formulated into the required color according to needs, avoiding the shortcomings of traditional anti-rust paints that are limited by anti-rust pigments and lack colorful colors. Moreover, the coating has excellent weather resistance. Background technique [0002] Compared with oil-based anti-rust paint, water-based anti-rust paint does not contain harmful ingredients such as benzene, formaldehyde, etc., and will not contain these harmful chemicals to human health and the environment during production and processing. Serious environmental pollution and ecological damage are avoided. Therefore, the development and maturity of water-based anti-ru...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D151/08C09D7/12C09D5/14C09D5/08
CPCC09D151/08C08K2201/011C08L2201/08C09D5/08C09D5/14C09D7/61C09D7/63C08L23/06C08K13/02C08K2003/2241C08K2003/2296C08K3/34C08K3/36
Inventor 范振天钱素平
Owner SHANGHAI YOUMAN NEW MATERIAL SCI & TECHCO LTD