Organic substance bonding-type zinc powder and preparation method thereof

A bonding type, organic technology, applied in dyeing low-molecular-weight organic compound treatment, anti-corrosion coatings, metal-free paints, etc., can solve the problems of coating corrosion damage, poor coating rust prevention, etc., and achieve low production cost , good economic and social benefits, easy operation

Inactive Publication Date: 2012-09-19
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, corrosive media can easily infiltrate along the pores, resulting in premature corrosion damage of the coating, and the early rust prevention of the coating is not good.

Method used

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  • Organic substance bonding-type zinc powder and preparation method thereof
  • Organic substance bonding-type zinc powder and preparation method thereof
  • Organic substance bonding-type zinc powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Raw material composition and mass number:

[0031] 12 kg of spherical zinc powder, 5 kg of triethanolamine, and 20 kg of water.

[0032] Preparation:

[0033] Add water into the stainless steel reaction kettle, start the stirring device, then add triethanolamine, fully dissolve at room temperature, and obtain triethanolamine aqueous solution. Then add the spherical zinc powder into the stainless steel reaction kettle, mix it evenly with the triethanolamine aqueous solution, react at 45°C for 30 minutes, then filter, wash the organically reacted zinc powder to neutrality, dry it, and crush it through an 80-mesh sieve , to obtain organic bonded zinc powder.

Embodiment 2

[0035] Raw material composition and mass number:

[0036] 10 kg of spherical zinc powder, 3 kg of triethanolamine, and 10 kg of water.

[0037] Preparation:

[0038] Add water into the stainless steel reaction kettle, start the stirring device, then add triethanolamine, fully dissolve at room temperature of 25°C, and obtain triethanolamine aqueous solution. Then add the spherical zinc powder into the stainless steel reaction kettle, mix it with triethanolamine aqueous solution evenly, react at room temperature of 25°C for 40 minutes, then filter, and wash the organically reacted zinc powder to neutrality, dry it, and crush it through 80 mesh Sieve to obtain organic bonded modified zinc powder.

Embodiment 3

[0040] Raw material composition and mass number:

[0041] 11 kg of spherical zinc powder, 4 kg of diethanolamine, and 12 kg of water.

[0042] Preparation:

[0043] Add water into the stainless steel reaction kettle, start the stirring device, then add diethanolamine, fully dissolve at room temperature of 30°C, and obtain an aqueous solution of diethanolamine. Then put the spherical zinc powder into the stainless steel reaction kettle, mix evenly with the diethanolamine aqueous solution, react at room temperature of 30°C for 30 minutes, then filter, and wash the organically reacted zinc powder to neutrality, dry it, and crush it through 80 mesh Sieve to obtain organic bonded zinc powder.

[0044] product result

[0045] The SEM image of the surface treated zinc powder is shown in figure 2 , it can be seen that flake-like particles grow on the original spherical particles. The energy spectrum (EDS) observation results of the flake-like particles are shown in image 3 , is ...

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PUM

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Abstract

The invention discloses an organic substance bonding-type zinc powder and a preparation method thereof. The zinc powder is prepared from the following raw materials in parts by weight: 10 to 12 parts of spherical zinc powder, 2 to 6 parts of organic amine and 3 to 15 parts of water. The preparation method comprises the following steps: adding spherical zinc powder into an aqueous solution of organic amine in a reaction kettle, allowing reactions to take place for 20 to 40 min at room temperature or in a low temperature heating condition (35 DEG C to 60 DEG C), filtering, recovering the filtrate, washing the zinc powder until neutral, drying and grinding to obtain the final product of organic substance bonding-type zinc powder. According to the organic substance bonding-type zinc powder obtained by the preparation method, the physical shielding performance of spherical zinc powder is enhanced, the early corrosion prevention performance of spherical zinc powder coating is improved, the electric conductivity of the original zinc powder is not changed, and the overall anti-rust performance is improved. The preparation method has the advantages of no strict requirement for reaction conditions, simple process, convenience for operation and industrial production, recycling of the filtrate, low production cost, and good economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of metal powder preparation, and relates to a method for preparing zinc powder, in particular to a method for preparing organic-bonded zinc powder. Background technique [0002] The conductivity of the film-forming material in zinc-rich coatings is poor, and the content of zinc powder must be increased to ensure conductivity. The SSPCPaint-20 of the American Steel Structure Coating Association stipulates that the zinc powder of organic zinc-rich coatings accounts for no less than 77% of the dry film mass, and the zinc powder of inorganic zinc-rich coatings accounts for no less than 74% of the dry film mass. It is still an inorganic type coating, the biggest feature is the high content of zinc powder in the formula, and the amount of zinc powder accounts for a large proportion. [0003] Corrosion mechanism studies suggest that a large amount of zinc powder in the zinc-rich primer can be in close contact with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C09C3/08C09C1/62C09D5/10C09D5/38
Inventor 袁爱群杨博王璟马少妹
Owner GUANGXI UNIV FOR NATITIES
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