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Aluminum alloy corrosion-resistant protective agent and preparation method thereof

A technology of aluminum alloy and protective agent, applied in the direction of metal material coating process, etc., can solve the problems of difficult corrosion inhibition mechanism, high toxicity, and restricting the development of corrosion inhibitors.

Inactive Publication Date: 2016-01-13
严静儿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, corrosion inhibitor technology has obvious limitations. In the liquid medium where corrosion inhibitors are most widely used, corrosion inhibitors must have a certain solubility and must reach a certain concentration.
Traditional corrosion inhibitors have polluted the environment due to their high toxicity; at the same time, due to the small amount of corrosion inhibitors used, small changes in the outside world will have a greater impact on the system, which also brings new challenges to the study of corrosion inhibition mechanisms. These factors have limited the further development of corrosion inhibitors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The technical solution of the present invention will be described in detail below through specific examples, and these examples are only used to explain and illustrate the present invention and should not be construed as limiting the present invention.

[0017] A kind of aluminum alloy corrosion protection agent, its composition includes 2-mercaptobenzothiazole MBT, 2-mercaptobenzimidazole MBI, 2-mercaptobenzoxazole MBO, benzotriazole BTA, high-density polyethylene, lubricant and Surfactant, wherein the high-density polyethylene is 3-5% by weight.

[0018] In weight percentage, the ratio of 2-mercaptobenzothiazole MBT: 2-mercaptobenzimidazole MBI: 2-mercaptobenzoxazole MBO: benzotriazole BTA is 1:2:1:1. The lubricant is one or a combination of stearic acid, butyl stearate or oleamide.

[0019] The surfactant is one or a combination of nonylphenol polyoxyethylene, fatty acid polyoxyethylene ether sodium sulfate or fatty acid polyoxyethylene ether ammonium sulfate.

[0...

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PUM

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Abstract

The invention relates to an aluminum alloy corrosion-resistant protective agent and a preparation method thereof. The aluminum alloy corrosion-resistant protective agent comprises 2-mercapto benzothiazole (MBT), 2-mercapto benzimidazole (MBI), 2-mercapto benzoxazole (MBO), benzotriazole (BTA), high-density polyethylene, lubricants and surfactants, wherein the high-density polyethylene accounts for 3-5wt%, and the weight percentage proportion of the 2-MBT, 2-MBI, 2-MBO and BTA is 2:1:1:1.

Description

technical field [0001] The invention belongs to the field of anti-corrosion agents, in particular to an aluminum alloy low-temperature anti-corrosion protection agent and a preparation method thereof. Background technique [0002] Metal corrosion pervades all fields of national economy and national defense construction, and the harm is very serious. First, corrosion can cause significant direct or indirect economic losses. According to statistics from industrially developed countries [5] , The economic loss caused by corrosion accounts for about 1.5%-4.2% of the gross national economic product of the year. Secondly, metal corrosion, especially stress corrosion and corrosion fatigue, often cause catastrophic major accidents and endanger personal safety. Furthermore, corrosion not only consumes a large amount of metal, but also wastes a large amount of energy, and 10%-20% of metal is lost due to corrosion every year. In addition, in the industrial production of petroleum, ...

Claims

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Application Information

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IPC IPC(8): C23C22/02
Inventor 严静儿
Owner 严静儿