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Epoxy powder coating for pipeline anti-corrosion and spraying process of pipeline anti-corrosion coating

An epoxy powder and anti-corrosion coating technology, applied in powder coatings, epoxy resin coatings, anti-corrosion coatings, etc., can solve the problems of processing safety and low work efficiency, improve anti-corrosion work efficiency, ensure production safety, The effect of reducing the impact

Inactive Publication Date: 2021-08-31
悦诚(扬州)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low processing safety and work efficiency of the above-mentioned steel pipe anticorrosion coating, the present invention provides an epoxy powder coating for pipeline anticorrosion and a spraying process of the pipeline anticorrosion coating. The epoxy powder coating is in powder form and replaces The traditional three-layer paint process saves the use of volatile organic solvents, improves the safety of the paint, saves costs, and the paint gels quickly, greatly improving the production efficiency of anti-corrosion steel pipes

Method used

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  • Epoxy powder coating for pipeline anti-corrosion and spraying process of pipeline anti-corrosion coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Epoxy zinc-rich powder is prepared from the following raw materials: 30 parts of epoxy resin E12, 60 parts of 1000 mesh zinc powder, 3 parts of phenolic resin curing agent, 1 part of imidazole epoxy resin, 0.5 part of polyacrylic acid and 0.5 part of polyether modified Sexual silicone oil;

[0034] Epoxy mica powder is prepared from the following raw materials: 50 parts of epoxy resin E12, 40 parts of gray mica iron oxide, 3 parts of phenolic resin curing agent, 1 part of imidazole epoxy resin, 0.5 part of polyacrylic acid and 0.5 part of polyether modified Sexual silicone oil;

[0035] Polyester powder is prepared from the following raw materials: 70 parts of epoxy resin E12, 5 parts of titanium dioxide, 3 parts of fast yellow organic pigment, 10 parts of phenolic resin curing agent, 1 part of imidazole epoxy resin, 0.5 parts of polysiloxane And 0.5 parts of polyether modified silicone oil.

[0036] The method of spraying the pipeline with the above powder is as foll...

Embodiment 2

[0038] Epoxy zinc rich powder is prepared from the following raw materials: 35 parts of epoxy resin E12, 65 parts of 1000 mesh zinc powder, 4 parts of dimethyl ester curing agent, 2 parts of dihydrazide, 1 part of polyacrylic acid and 1 part of polyurethane defoamer ;

[0039] Epoxy mica iron powder is prepared from the following raw materials: 55 parts of epoxy resin E12, 45 parts of gray mica iron oxide, 4 parts of dimethyl ester curing agent, 2 parts of dihydrazide, 1 part of polyacrylic acid and 1 part of polyurethane defoamer ;

[0040] Polyester powder is prepared from the following raw materials: 75 parts of epoxy resin E12, 15 parts of titanium dioxide, 8 parts of fast yellow organic pigment, 15 parts of dimethyl ester curing agent, 3 parts of dihydrazide, 1 part of polysiloxane and 1 part polyurethane defoamer.

[0041] The method of spraying the pipeline with the above powder is as follows: the pipeline is heated to 230°C in a medium-frequency induction heating fur...

Embodiment 3

[0043] Epoxy zinc-rich powder is prepared from the following raw materials: 33 parts of epoxy resin E12, 62 parts of 1000-mesh zinc powder, 1.5 parts of dimethyl ester curing agent, 2 parts of dicyandiamide curing agent, 1 part of dihydrazide, 0.5 parts of quaternary Phosphate salt, 0.8 part of polyacrylic acid and 0.8 part of polyether modified silicone oil;

[0044]Epoxy mica iron powder is prepared from the following raw materials: 53 parts of epoxy resin E12, 42 parts of gray mica iron oxide, 1.5 parts of dimethyl ester curing agent, 2 parts of dicyandiamide curing agent, 1 part of dihydrazide, 0.5 parts of quaternary Phosphate salt, 0.8 part of polyacrylic acid and 0.7 part of polyether modified silicone oil;

[0045] Polyester powder is prepared from the following raw materials: 72 parts of epoxy resin E12, 10 parts of titanium dioxide, 5 parts of fast yellow organic pigment, 6 parts of dimethyl ester curing agent, 6 parts of dicyandiamide curing agent, 1 part of dihydra...

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Abstract

The invention discloses an epoxy powder coating for pipeline anticorrosion and a pipeline anticorrosion coating spraying process. The epoxy powder coating for pipeline anticorrosion includes epoxy zinc-rich powder, epoxy mica powder and polyester powder. Epoxy zinc-rich powder is made from the following raw materials: epoxy resin, zinc powder, curing agent, catalyst, leveling agent and defoamer; epoxy mica powder is made from the following raw materials: epoxy resin, gray mica iron oxide , curing agent, catalyst, leveling agent and defoaming agent; polyester powder is made from the following raw materials: epoxy resin, titanium dioxide, pigment, curing agent, catalyst, leveling agent and defoaming agent. The components in each powder in the present invention do not contain VOC, which can save the use of VOC treatment devices in the spraying process, reduce production costs and hazards, and ensure the production safety of workers. In addition, the three-layer spraying process greatly improves the efficiency of anti-corrosion work and reduces the impact of weather and other factors on anti-corrosion work.

Description

technical field [0001] The invention relates to pipeline anticorrosion engineering, in particular to an epoxy powder coating for pipeline anticorrosion. In addition, the invention also relates to a spraying process of pipeline anticorrosion coating. Background technique [0002] Anti-corrosion steel pipe refers to steel pipes that have been processed by anti-corrosion technology, which can effectively prevent or slow down the corrosion phenomenon caused by chemical or electrochemical reactions during transportation and use. According to the statistical data of our country, the direct economic loss of domestic steel pipe corrosion is more than 280 billion yuan every year, and the global annual loss due to steel pipe corrosion is as high as 500 billion U.S. dollars. Anti-corrosion steel pipes can effectively prevent or slow down corrosion, prolong the service life of steel pipes, and reduce the operating cost of steel pipes. [0003] At present, most of the external anti-cor...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D5/10C09D5/03C09D7/61B05D5/00B05D7/24B05D7/14B05D1/36B05D1/12
CPCB05D1/12B05D1/36B05D5/00B05D7/146B05D7/24B05D7/58B05D2202/10B05D2254/02B05D2504/00B05D2508/00C08K2003/0893C08K2003/2272C08L2205/025C08L2205/035C09D5/033C09D5/106C09D163/00B05D2420/01B05D2420/02B05D2420/03C08L63/00C08K3/08C08K3/22
Inventor 向希强张永强陈江杰
Owner 悦诚(扬州)新材料有限公司
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