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Low zinc long-acting anticorrosive coating and preparation method thereof

A long-term anti-corrosion and coating technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of easy sedimentation of zinc powder and difficult construction

Inactive Publication Date: 2019-01-11
河南华彩无机涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large amount of zinc powder contained in the zinc-rich paint, the zinc powder is easy to settle, making the construction extremely difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A low-zinc long-term anti-corrosion coating, made of the following raw materials in mass percentage: 30% nano-phosphate, 10% zinc powder, 10% aluminum phosphate, 20% wollastonite powder, 10% sericite and 10% barium sulfate, The rest is water.

[0024] Made by following steps:

[0025] (1) Prepare raw materials according to the mass percentage;

[0026] (2) Add nano-phosphate, zinc powder, aluminum phosphate, wollastonite powder, sericite, barium sulfate, and water into the container in turn, mix and stir while adding, and keep high-speed dispersion for 120 minutes after adding until the mixture is When the fineness reaches below 40 μm, it is filtered and packaged.

Embodiment 2

[0028] A low-zinc long-term anti-corrosion coating, made of the following raw materials in mass percentage: 40% nano-phosphate, 5% zinc powder, 10% aluminum phosphate, 20% wollastonite powder, 5% sericite and 5% barium sulfate, The rest is water. The preparation method is the same as in Example 1.

Embodiment 3

[0030] A low-zinc long-term anti-corrosion coating, made of the following raw materials in mass percentage: 20% nano-phosphate, 8% zinc powder, 15% aluminum phosphate, 10% wollastonite powder, 10% sericite and 15% barium sulfate, The rest is water. The preparation method is the same as in Example 1.

[0031] The coatings obtained in the above examples were tested, and the salt spray resistance was 1000h (GB / T1771-2007), the adhesion was 3Mpa (GB / T5120-2006), and the drying time was 20min (GB / T1728).

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PUM

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Abstract

The invention belongs to the field of coatings, and in particular relates to an aqueous long-acting anticorrosive coating with low zinc content. The coating is prepared from the following raw materials in percent by mass: 0-50% of nano phosphate, 0-10% of zinc powder, 0-30% of aluminium phosphate, 0-20% of wollastonite in powder, 0-10% of sericite, 0-40% of barium sulfate and the balance water. The content of zinc powder in the low zinc long-acting anticorrosive coating is lower to 5%, neutral salt mist time reaches 1000 hours, and the coating can replace a zinc-enriched coating effectively.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a water-based long-acting anti-corrosion coating with low zinc content 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, adding The corresponding additives are viscous liquids prepared with organic solvents or water. Among them, anti-corrosion coatings have been widely used due to their anti-corrosion effect on metals and the like, which can protect the service life of non-ferrous metals. [0003] In recent years, the emergence of zinc-rich coatings, especially water-based inorganic zinc-rich coatings, has provided an important guarantee for the long-term anticorrosion of steel structures. However, since the zinc-rich paint contains a large...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/10C09D7/61
CPCC09D1/00C09D5/106C09D7/61
Inventor 任鑫
Owner 河南华彩无机涂料有限公司
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