Preparation method of anticorrosive paint for coastal electrical equipment

A technology for power equipment and anti-corrosion coatings, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems affecting human health, economic losses, heavy metal pollution, etc., to improve corrosion resistance and UV aging resistance Performance, the effect of broad application prospects

Inactive Publication Date: 2018-01-26
STATE GRID JIANGSU ELECTRIC POWER CO LTD NANTONG POWER SUPPLY BRANCH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It not only causes metal instruments and equipment not to be used normally, resulting in huge economic losses, but also produces heavy metal pollution that directly enters soil and water resources, thereby affecting human health.

Method used

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  • Preparation method of anticorrosive paint for coastal electrical equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add hydroxyacrylate to ethyl acetate solvent to prepare a solution with a concentration of 15 wt%, heat and stir evenly; add fluororesin after cooling (mass ratio, hydroxyacrylic resin: fluororesin=1:4), continue to stir evenly, and then add Silica (1 wt%, relative to the total mass of the resin) and titanium nitride (1 wt%, relative to the total mass of the resin) were stirred vigorously for 10 min. After mixing evenly, add hexamethylene diisocyanate (molar ratio, -NCO:-OH=1.5:1), leveling agent (BYK 333, 0.5 wt%) and defoamer (polyether modified silicone, 0.5 wt%) Wait, stir vigorously for 30 minutes, then add butyltin dilaurate (0.5 wt%) catalyst, and stir for another 10 minutes to obtain a special anti-corrosion coating for electric equipment. The amount of butyltin dilaurate catalyst, leveling agent, and defoamer added is calculated according to the total mass of hydroxyacrylate, fluorine-containing resin, and isocyanate.

Embodiment 2

[0017] Add hydroxyacrylate to ethyl acetate solvent to prepare a solution with a concentration of 15 wt%, heat and stir evenly; add fluororesin after cooling (mass ratio, hydroxyacrylic resin: fluororesin=2:3), continue to stir evenly, and then add Silica (1 wt%, relative to the total mass of the resin) and titanium nitride (1 wt%, relative to the total mass of the resin) were stirred vigorously for 10 min. After mixing evenly, add hexamethylene diisocyanate (molar ratio, -NCO:-OH=1.5:1), leveling agent (BYK 333, 0.5 wt%) and defoamer (polyether modified silicone, 0.5 wt%) Wait, stir vigorously for 30 minutes, then add butyltin dilaurate (0.5%) catalyst, and stir for another 10 minutes to obtain a special anti-corrosion coating for electric equipment. The amount of hydroxyacrylate, butyltin dilaurate catalyst, leveling agent and defoamer added is calculated according to the total mass of hydroxyacrylate, fluorine-containing resin and isocyanate.

Embodiment 3

[0019] Add hydroxyacrylate to ethyl acetate solvent to prepare a solution with a concentration of 15 wt%, heat and stir evenly; add fluororesin after cooling (mass ratio, hydroxyacrylic resin: fluororesin=3:2), continue to stir evenly, and then add Silica (1 wt%, relative to the total mass of the resin) and titanium nitride (1 wt%, relative to the total mass of the resin) were stirred vigorously for 10 min. After mixing evenly, add hexamethylene diisocyanate (molar ratio, -NCO:-OH=1.5:1), leveling agent (BYK 333, 0.5 wt%) and defoamer (polyether modified silicone, 0.5 wt%) Wait, stir vigorously for 30 minutes, then add butyltin dilaurate (0.5 wt%) catalyst, and stir for another 10 minutes to obtain a special anti-corrosion coating for electric equipment. The amount of butyltin dilaurate catalyst, leveling agent, and defoamer added is calculated according to the total mass of hydroxyacrylate, fluorine-containing resin, and isocyanate.

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Abstract

The invention discloses a preparation method of an anticorrosive paint for coastal electrical equipment. The preparation method comprises the following steps: dissolving hydroxy acrylic resin and fluororesin in a butyl acetate solvent, then adding silicon dioxide and titanium nitrate, and stirring; then adding hexamethylene diisocyanate and a dibutyltin dilaurate catalyst, stirring and mixing uniformly, and thus preparing the special anticorrosive paint for the coastal electrical equipment. The preparation method disclosed by the invention has the advantages that since the fluororesin is introduced into a polyurethane coating, the corrosion resistance and ultraviolet ageing resistance of the polyurethane coating are improved, and the polyurethane coating can adapt to the anticorrosive needof the coastal electrical equipment completely and has wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a preparation method of an anticorrosion coating for coastal electric equipment. Background technique [0002] Corrosion of metals is a problem that needs to be addressed. It not only causes metal instruments and equipment not to be used normally, resulting in huge economic losses, but also produces heavy metal pollution that directly enters soil and water resources, thereby affecting human health. An effective way to solve metal corrosion is to use anti-corrosion coatings. According to statistics, my country's anti-corrosion coating market has reached tens of billions of dollars, mainly in low-end anti-corrosion coatings, such as rubber coatings, epoxy coatings, acrylic coatings, and zinc-rich coatings. The high-end anti-corrosion coatings (polyurethane coatings, fluorocarbon coatings) are occupied by foreign companies. [0003] Polyurethane and fluoroca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/08C09D7/61C08G18/62
Inventor 茅雷朱富云王海燕徐晓轶黄俊黄金鑫
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD NANTONG POWER SUPPLY BRANCH
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