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Primer-topcoat paint used for steel structures and allowing painting on rusty surfaces

A steel structure and coating technology, applied in coatings, anti-corrosion coatings, etc., can solve problems such as unfavorable energy consumption, labor cost and material cost, non-rust coating, early rust adhesion, etc., to achieve good anti-rust Effect, strong anti-rust ability, strong anti-rust effect

Inactive Publication Date: 2017-09-15
中山市粤马科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] my country's environmental protection requirements for the coatings market are getting higher and higher. According to the dispersion medium used in coatings, it can be divided into solvent-based coatings and water-based coatings. Among them, the volatile organic compounds and toxic substances of solvent-based coatings cause serious harm to the human body. This kind of coating is not only a waste Resources, pollute the environment, and bring safety hazards to manufacturing units and construction sites, such as fire, explosion, etc. In the future, solvent-based coatings will gradually be eliminated, and most of the existing water-based industrial anti-rust paints For installation, it is necessary to treat the steel plate substrate to not less than Sa2.5 level, and paint it before returning to rust, otherwise there will be flash rust, early rust and poor adhesion, and most of the same water-based industrial paints have a base Paint and finish paint, so the construction is more complicated, which is not conducive to reducing energy consumption and saving labor costs and material costs

Method used

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  • Primer-topcoat paint used for steel structures and allowing painting on rusty surfaces
  • Primer-topcoat paint used for steel structures and allowing painting on rusty surfaces
  • Primer-topcoat paint used for steel structures and allowing painting on rusty surfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A steel structure paint with rusty coating bottom surface, including the following raw materials in weight percentage: 58% of acrylic polymer emulsion, 0.2% of defoamer, 0.15% of substrate wetting agent, 0.2% of wetting and dispersing agent, titanium dioxide 20%, zinc phosphate 6%, anti-flash rust agent 0.3%, dipropylene glycol butyl ether 3%, ammonia 0.15%, thickener 0.5%, preservative 0.1% and deionized water 11.35%.

[0023] A method for preparing a rust-coated bottom-surface-integrated steel structure paint, comprising the following steps:

[0024] 1) Take 8.5% of deionized water and put it into the dispersing tank, disperse at a speed of 1000r / min, and add 0.2% of wetting and dispersing agent and 0.1% of defoamer in sequence, then adjust the dispersing speed to 1200r / min, and disperse for 10 minutes , to obtain the first dispersion mixture, for subsequent use;

[0025] 2) Add 20% of titanium dioxide, 6% of zinc phosphate and 0.05% of preservative to the mixed disp...

Embodiment 2

[0036] A steel structure paint with rusty coating base, including the following raw materials in weight percentage: 58% of acrylic polymer emulsion, 0.2% of defoamer, 0.2% of substrate wetting agent, 0.2% of wetting and dispersing agent, titanium dioxide 20%, zinc phosphate 6%, anti-flash rust agent 0.4%, dipropylene glycol butyl ether 3%, ammonia 0.15%, thickener 0.5%, preservative 0.1% and deionized water 11.25%.

[0037] A method for preparing a rust-coated bottom-surface-integrated steel structure paint, comprising the following steps:

[0038] 1) Take 8.5% of deionized water and put it into the dispersing tank, disperse at a speed of 1000r / min, and add 0.2% of wetting and dispersing agent and 0.1% of defoamer in sequence, then adjust the dispersing speed to 1200r / min, and disperse for 10 minutes , to obtain the first dispersion mixture, for subsequent use;

[0039] 2) Add 20% of titanium dioxide, 6% of zinc phosphate and 0.05% of preservative to the mixed dispersion liquid...

Embodiment 3

[0050] A steel structure paint with rusty coating base, including the following raw materials in weight percentage: 58% of acrylic polymer emulsion, 0.2% of defoamer, 0.2% of substrate wetting agent, 0.2% of wetting and dispersing agent, titanium dioxide 20%, zinc phosphate 6%, anti-flash rust agent 0.5%, dipropylene glycol butyl ether 3%, ammonia 0.15%, thickener 0.5%, preservative 0.1% and deionized water 11.15%.

[0051] A method for preparing a rust-coated bottom-surface-integrated steel structure paint, comprising the following steps:

[0052] 1) Take 8.5% of deionized water and put it into the dispersing tank, disperse at a speed of 1000r / min, and add 0.2% of wetting and dispersing agent and 0.1% of defoamer in sequence, then adjust the dispersing speed to 1200r / min, and disperse for 10 minutes , to obtain the first dispersion mixture, for subsequent use;

[0053] 2) Add 20% of titanium dioxide, 6% of zinc phosphate and 0.05% of preservative to the mixed dispersion liqu...

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Abstract

The invention discloses primer-topcoat paint used for steel structures and allowing painting on rusty surfaces. The primer-topcoat paint used for steel structures and allowing painting on rusty surfaces is prepared from raw materials in percentage by weight as follows: 55%-65% of an acrylic polymer emulsion, 0.1%-0.2% of a defoaming agent, 0.15%-0.25% of a base material wetting agent, 0.1%-0.3% of a wetting dispersant, 2%-20% of titanium dioxide, 5%-9% of zinc phosphate, 0.3%-0.5% of a flash-rust inhibitor, 3%-4% of dipropylene glycol mono butyl ether, 0.1%-0.2% of ammonium hydroxide, 0.4%-0.6% of a thickening agent, 0.05%-0.1% of a corrosion remover and 10%-20% of deionized water. The primer-topcoat paint used for steel structures and allowing painting on rusty surfaces adopts a reasonable formula and can be directly used on rusty steel, the same paint is required to be applied twice or above, flash rust and early rust cannot occur, and the paint is safe, environment-friendly and excellent in performance.

Description

technical field [0001] The invention belongs to the technology of water-based industrial coatings, and in particular relates to a rust-coated bottom-surface-integrated steel structure paint and a preparation method thereof. Background technique [0002] Paint is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, or oil, or emulsion, with or without adding pigments, fillers, and adding corresponding Additives, viscous liquids prepared with organic solvents or water. [0003] my country's environmental protection requirements for the coatings market are getting higher and higher. According to the dispersion medium used in coatings, it can be divided into solvent-based coatings and water-based coatings. Among them, the volatile organic compounds and toxic substances of solvent-based coatings cause serious harm to the human body. This kind of coating is not only a wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C09D5/08
CPCC09D133/00C08K2003/2241C08K2003/328C08L2205/035C09D5/084C08L83/04C08K13/02C08K3/32C08K3/22C08K5/46
Inventor 梁德记李莹露梁琼
Owner 中山市粤马科技有限公司
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