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Quick-drying type organic zinc-rich coating and preparation method thereof

A quick-drying, organic technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of slow curing rate, etc., and achieve the effect of good construction, simple method and high impact strength

Inactive Publication Date: 2013-07-17
无锡市太湖防腐材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drying of epoxy zinc-rich primer is less affected by the environment, but the curing rate is slower than that of inorganic zinc-rich primer, and its application on the steel pretreatment assembly line is also greatly limited

Method used

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  • Quick-drying type organic zinc-rich coating and preparation method thereof
  • Quick-drying type organic zinc-rich coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Described quick-drying type organic zinc-rich paint, the steps are as follows in parts by mass:

[0025] (1) Preparation of organic zinc-rich coating solution components: Take 5kg of bisphenol A epoxy resin and dissolve it in 5kg of solvent, dissolve and stir evenly at a speed of 800r / min, and prepare a solution with a mass concentration of 50%; take polyethylene Butyral resin 0.4kg, dissolved in 4kg solvent, dissolved and stirred evenly at a speed of 800r / min, configured into a solution with a mass concentration of 10%; take 1kg of nitrocellulose, dissolved in 5kg and stirred at a speed of 800r / min Uniform, configured into a solution with a mass concentration of 20%;

[0026] Mix the above solutions, add 1kg of defoamer, 0.4kg of leveling agent, and 0.2kg of anti-sedimentation agent, and stir evenly to obtain the organic zinc-rich coating liquid component;

[0027] (2) Organic zinc-rich paint curing agent components: 2.5kg of polyamide with a molecular weight of 800, ...

Embodiment 2

[0033] Described quick-drying type organic zinc-rich paint, the steps are as follows in parts by mass:

[0034] (1) Preparation of organic zinc-rich coating solution components: Take 2kg of bisphenol A epoxy resin and dissolve it in 3.5kg of solvent, dissolve and stir evenly at a speed of 1000r / min, and prepare a solution with a mass concentration of 60%; Vinyl butyral resin 0.5kg, dissolve in 10kg solvent, dissolve and stir evenly at a speed of 1000r / min, and configure a solution with a mass concentration of 5%; take 1.5kg of nitrocellulose, dissolve in 6kg at a speed of 1000r / min Dissolve and stir evenly, and configure a solution with a mass concentration of 25%;

[0035] Mix the above solutions, add 0.12 kg of defoaming agent, leveling agent, and 0.6 kg of anti-settling agent, and stir evenly to obtain the organic zinc-rich coating liquid component;

[0036] (2) Organic zinc-rich paint curing agent components: 2.75 kg of polyamide with a molecular weight of 1000, 0.015 kg ...

Embodiment 3

[0042] Described quick-drying type organic zinc-rich paint, the steps are as follows in parts by mass:

[0043] (1) Preparation of organic zinc-rich coating solution components: Take 6kg of bisphenol A epoxy resin and dissolve it in 6kg of solvent, dissolve and stir evenly at a speed of 1200r / min, and prepare a solution with a mass concentration of 50%; take polyethylene 0.6 parts of butyral resin, dissolved in 12kg of solvent, dissolved and stirred at a speed of 1200r / min to form a solution with a mass concentration of 5%; take 2 parts of nitrocellulose, dissolved in 4kg and dissolved at a speed of 1200r / min Stir evenly, and configure a solution with a mass concentration of 20%;

[0044] Mix the above solutions, add 0.4kg of defoamer, 0.16kg of leveling agent, 0.8kg of anti-sedimentation agent, and stir evenly to obtain the organic zinc-rich coating liquid component;

[0045] (2) Organic zinc-rich paint curing agent components: 3kg of polyamide with a molecular weight of 120...

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Abstract

The invention relates to a quick-drying type organic zinc-rich coating and a preparation method thereof, and belongs to the technical field of coating preparation. The quick-drying type organic zinc-rich coating comprises independently packaged zinc powder, an organic zinc-rich coating liquid and an organic zinc-rich coating curing agent; when the coating is used, the three components are mixed together and is uniformly stirred by using a stirrer. The coating liquid comprises the following components of various auxiliaries such as a medium molecular weight solid bisphenol A epoxy resin of which the molecular weight is 500 to 2,000, a poly-vinyl butyral resin of which the acetal degree is 44% to 50%, low-viscosity nitrocellulose, a plasticizer, a flexibilizer and the like and high-class solvents; and the curing agent is prepared from polyamide with low molecular weight in a modification mode. The quick-drying type organic zinc-rich coating has the advantages of high solid content, low viscosity and good engineering property, is dried quickly at a low temperature, has high impact resistance and has excellent corrosion resistance and chemical resistance.

Description

technical field [0001] The invention relates to a quick-drying organic zinc-rich paint and a preparation method thereof, belonging to the technical field of paint manufacturing. Background technique [0002] Over the years, most of the inorganic zinc-rich coatings used in my country's anti-corrosion industry are water-based self-curing and post-curing. This kind of inorganic zinc-rich paint must be prepared and used immediately, with poor storage performance, long drying time, easy to precipitate and agglomerate, and its application in the steel pretreatment assembly line is limited. The inorganic zinc-rich primer has higher requirements for the pretreatment of the steel surface , otherwise it will affect the adhesion of the coating. In addition, it is necessary to apply a sealer paint, otherwise rust will appear. [0003] The adhesion, adhesion, mechanical strength, shielding property, and compatibility with other coating varieties of epoxy zinc-rich primers are stronger ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/10
Inventor 刘嘉东
Owner 无锡市太湖防腐材料有限公司
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