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High-efficient zinc-rich anti-corrosive paint and preparation method thereof

An anti-corrosion coating and zinc-rich technology, applied in anti-corrosion coatings, conductive coatings, coatings, etc., can solve the problems of high porosity and poor shielding performance, and achieve the effects of low pollution, good antistatic performance, and excellent physical and mechanical properties

Inactive Publication Date: 2009-06-03
贵阳神迪科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermal spraying zinc is sprayed on the metal substrate after melting and atomizing the wire, which has disadvantages such as residual stress, high porosity, and poor shielding performance.

Method used

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  • High-efficient zinc-rich anti-corrosive paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Put in 11.0Kg ethyl acetate, ethanol, methyl ethyl ketone mixed solvent, add 0.4Kg simethicone, monoalkoxy pyrophosphate, oxidized polyethylene wax mixed additives and stir evenly, put in active zinc with an average particle size of 2-3um The powder is 86.0Kg, stirred at a high speed of 1000-1200rpm under normal temperature and pressure to obtain a zinc powder slurry with a fineness of ≤20um.

[0026] Put 2.6Kg EVOH, EVA, MP45, PVF resin into the above-mentioned zinc powder slurry, stir at 800-1000rpm at high speed until the resin is completely dissolved, and obtain the finished high-efficiency zinc-rich anti-corrosion coating.

Embodiment 2

[0028] Put in 15.2Kg ethyl acetate, ethanol, methyl ethyl ketone mixed solvent, add 0.4Kg simethicone, monoalkoxy pyrophosphate, oxidized polyethylene wax mixed additives and stir evenly, put in active zinc with an average particle size of 2-3um The powder is 82.0Kg, stirred at a high speed of 1000-1200rpm under normal temperature and pressure to obtain a zinc powder slurry with a fineness of ≤20um.

[0029] Put 2.4Kg of EVA VCAA and MP45 resin into the above-mentioned zinc powder slurry, and stir at a high speed of 800-1000rpm until the resin is completely dissolved to obtain a finished high-efficiency zinc-rich anti-corrosion coating.

Embodiment 3

[0031] Put in 19.0Kg of ethyl acetate, ethanol, methyl ethyl ketone mixed solvent, add 0.3Kg of simethicone, monoalkoxy pyrophosphate, oxidized polyethylene wax mixed additives and stir evenly, put in active zinc with an average particle size of 2-3um The powder is 78.0Kg, stirred at a high speed of 1000-1200rpm under normal temperature and pressure to obtain a zinc powder slurry with a fineness of ≤20um.

[0032] Put 2.2Kg of VAOH, VCAA, MP45 resin into the above-mentioned zinc powder slurry, stir at 800-1000rpm at high speed until the resin is completely dissolved, and obtain the finished high-efficiency zinc-rich anti-corrosion coating.

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Abstract

The invention relates to a high-efficient zinc-rich anti-corrosive paint and a preparation method thereof. Components of the paint according to parts by weight are as below: 2.0-2.6 parts of ethylene resin, 75.0-86.0 parts of zinc powder, 11.0-24.0 parts of solvent and 0.1-0.5 part of addition agent. The invention is characterized in that the ordinary active zinc powder is used; zinc content in a dried film is greater than 96.5 percent so as to solve a present technical problem that only the use of high-purity zinc powder can lead to the zinc content of 96 percent in the dried film. A high-efficient zinc-rich anti-corrosive paint coating has excellent physical and mechanical performance and excellent anti-corrosive performance, and no red rust is generated during a 6000h neutral salt spray test. The surface of the coating can be used together with anti-corrosive finish paint of various types, and the requirement of various long-term heavy anti-corrosion constructions can be satisfied; the paint system is of single component which can be used at the temperature of -25 DEG C-80 DEG C; the construction is convenient, and the range of use environment temperature is wide; and the invention has good antistatic performance and can be used for an antistatic coating.

Description

technical field [0001] The invention relates to a zinc-rich paint, in particular to a dry film made of ordinary active zinc powder, which has a high zinc content (zinc content ≥ 96.5%), a tolerant construction environment temperature, excellent mechanical properties, excellent anti-corrosion performance, and anti-corrosion properties. One-component high-efficiency zinc-rich anti-corrosion coating with electrostatic properties. Background technique [0002] The zinc powder content in traditional zinc-rich coatings is generally below 80%. Due to its low zinc content, the electrochemical protection effect of zinc in heavy-duty anti-corrosion coatings is general, and its anti-corrosion is still based on the shielding protection of the paint film, so it is easy to cause rust. Most of the metal components are made of carbon steel, manganese steel, cast steel and other materials, and they are exposed to the environment of alternating dry and wet, sunlight, acid rain, salt spray, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/10C09D5/24
Inventor 张建新刘应科
Owner 贵阳神迪科技有限公司
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