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A kind of water-based environmental protection rust inhibitor for steel parts and its preparation method and application

A technology of anti-rust agent and steel parts, which is applied in the field of water-based environmental protection anti-rust agent and metal anti-rust, which can solve the problems of luster and mechanical performance damage, product scrapping, waste of resources, etc. Adhesion, the effect of reducing the use of ethanol

Active Publication Date: 2019-04-12
无锡市恒利弘实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, corrosion will also cause irreversible damage and loss to the shape, luster and mechanical properties of the metal, and some may even directly scrap the product, resulting in a waste of resources. Therefore, it is very necessary for the antirust treatment of metal parts

Method used

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  • A kind of water-based environmental protection rust inhibitor for steel parts and its preparation method and application
  • A kind of water-based environmental protection rust inhibitor for steel parts and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] First of all, the rusted steel parts are subjected to surface pretreatment - rust removal treatment - washing - hydrogen removal treatment - natural cooling treatment. For chemical rust removal, the rust remover is:

[0047] Inorganic mixed acid, 25wt.% mass ratio is 4:1 mixed acid of hydrochloric acid and nitric acid

[0048] Organic acid, 5wt.% sulfinic acid

[0049] Zwitterionic Surfactant, 2 wt.% Cocamidopropyl Betaine

[0050] Complexing agent, 7 wt.% potassium thiocyanate

[0051] Corrosion inhibitor, 2wt.% mercaptobenzothiazole

[0052] Penetrating agent, 2wt.% isodecanol ethoxylate

[0053] Additional salt, 5 wt.% ammonium fluoride

[0054] Additional additives, 0.7 wt.% polyoxyethylene polyoxypropanolamine ethers and polyoxyethylene sorbitan fatty acid esters;

[0055] The remainder is a 3:1 volume ratio of ethanol or ethylene glycol and deionized solvent.

[0056] Then, 4-pentenoic acid, 2-aminoacetic acid and N,N-dimethylethanolamine were placed in dei...

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Abstract

The invention provides a water-based environmental protection rust inhibitor for steel parts, and a preparation method and application of the water-based environmental protection rust inhibitor. The rust inhibitor is prepared from polyvinyl butyral and a bis-silane phenolic compound which are used as film-forming agents, a corrosion inhibitor A, a corrosion inhibitor B, zinc phosphate used as anti-rust pigment, a dispersing agent, a complexing agent, modification additives, other additives, and a solvent formed by ethanol and deionized water. An anti-rust film formed by the rust inhibitor is good in mechanical properties, high in hardness and compactness, wear-resistant and scratch-resistant, and high in impact resistance; the water-based environmental protection rust inhibitor is good in compatibility with the anti-rust pigment, environmentally-friendly and free from pollution; the rust inhibitor is good in rust prevention effect, can be cured at the room temperature and is uniform in film formation; the rust inhibitor is high in binding force with a base material; the rust inhibitor is good in high-temperature stability and low-temperature stability, and enables a whole rust removal system to be stable.

Description

technical field [0001] The invention relates to the field of metal antirust, in particular to the field of water-based environment-friendly antirust agent for steel parts. Background technique [0002] Metal corrosion is a common but unavoidable phenomenon in real society. For example, machinery, equipment, and buildings made of various metals will rust due to being exposed to the air for a long time. When the air is filled with a large amount of water vapor and salt spray, The corrosion phenomenon is even more significant, such as aircraft and ships. In addition, the corrosion of metals has a huge impact on the national economy. In 2012, the economic loss caused by corrosion in my country was 800 billion yuan. The results of the corrosion loss survey in the United States in 2010 showed: Corrosion losses cost approximately $476 billion, which is roughly 1.2 percent of the U.S. gross national product. Moreover, corrosion will also cause irreversible damage and loss to the shap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/05C23C22/78C23G1/08
CPCC23C22/05C23C22/78C23C2222/20C23G1/088
Inventor 白林森梁莲芝
Owner 无锡市恒利弘实业有限公司
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