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Preparation method for copper surface corrosion inhibition assembled membrane

A copper surface and corrosion inhibition technology, applied in the direction of metal material coating process, etc., can solve the problem of easy corrosion of copper surface, and achieve the effect of inhibiting corrosion, reducing cost and simple preparation process

Inactive Publication Date: 2016-06-29
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a method for preparing a corrosion-inhibiting assembly film on a copper surface. The preparation method of the corrosion-inhibiting assembly film on a copper surface is to solve the problem of the copper surface in the prior art. Technical problems that are prone to corrosion in corrosive environments

Method used

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  • Preparation method for copper surface corrosion inhibition assembled membrane
  • Preparation method for copper surface corrosion inhibition assembled membrane
  • Preparation method for copper surface corrosion inhibition assembled membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] After polishing the surface of the copper electrode with metallographic sandpaper of different meshes, rinse with absolute ethanol and deionized water to remove surface oil and grease.

[0029] The pretreated copper electrode was assembled in 2-methyl-3-butyn-2-ol concentration of 0.2mM, 0.5mM, 1.0mM, 1.5mM ethanol solution for 1h, and then correspondingly in p-toluenesulfonyl azide Click and assemble in ethanol solutions with nitrogen concentrations of 0.2mM, 0.5mM, 1.0mM, and 1.5mM for 30min. After the click assembly is completed, rinse with water and dry to obtain a uniform triazole corrosion-inhibiting film on the copper surface.

Embodiment 2

[0039] After polishing the surface of the copper electrode with metallographic sandpaper of different meshes, rinse with absolute ethanol solution and deionized water to remove surface oil and grease.

[0040] The pretreated copper electrode was assembled in an ethanol solution with a concentration of 1.0mM of 2-methyl-3-butyn-2-ol for 1h, and then correspondingly in an ethanol solution with a concentration of p-toluenesulfonyl azide of 1.0mM Click to assemble 15min, 30min, 45min, 1h. After the click assembly is completed, rinse with water and dry to obtain a uniform triazole corrosion-inhibiting film on the copper surface.

Embodiment 3

[0049] After polishing the surface of the copper electrode with metallographic sandpaper of different meshes, rinse with absolute ethanol solution and deionized water to remove surface oil and grease.

[0050] The pretreated copper sheets were assembled in an ethanol solution with a concentration of 1.0mM of 2-methyl-3-butyn-2-ol for 1h, and then correspondingly in an ethanol solution with a concentration of p-toluenesulfonyl azide of 1.0mM Click to assemble for 30 minutes. After the click assembly is completed, rinse with water and dry to obtain a uniform triazole corrosion-inhibiting film on the copper surface. Measure the diffuse reflection result of the copper surface after clicking.

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Abstract

The invention provides a method for preparing a corrosion-inhibiting assembly film on a copper surface. The copper sheet is polished and polished step by step with 1#~6# metallographic sandpaper, and then degreased with absolute ethanol, and then washed with deionized water for later use. The rinsed copper sheet is immersed in 2-methyl-3-butyne-2-alcohol assembly solution and p-toluenesulfonyl azide assembly solution successively, and the assembly solvent of the two assembly solutions is ethanol, and the The concentration of the 2-methyl-3-butyne-2-alcohol assembly solution is 0.2~1.5mM The concentration of the p-toluenesulfonyl azide assembly solution is 0.2~1.5mM; after the assembly is completed, wash with water, Then it is dried to obtain the corrosion inhibiting assembly film on the copper surface. The preparation process of the invention is simple, and the triazole corrosion-inhibiting film is click-synthesized on the copper surface. The test in the simulated seawater solution shows that it has a good anti-corrosion protection effect, and the corrosion inhibition efficiency reaches 90.5%.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to an anticorrosion technology for metal materials, in particular to a method for preparing a corrosion inhibiting assembly film on a copper surface. Background technique [0002] Copper and its alloys have good thermal and electrical conductivity and mechanical properties, and are widely used in many industries such as electric power, information, and seawater desalination. but in Cl - , SO 4 2- In corrosive media such as copper, copper and its alloys are prone to corrosion, causing huge economic losses and potential safety hazards. Therefore, the corrosion protection of copper and alloys is very important. As a commonly used anti-corrosion method, corrosion inhibitor is economical, effective and adaptable. [0003] Corrosion-inhibiting assembly technology provides a method for modifying the metal surface according to the set method, which opens up a new way for metal anti-corros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/02
CPCC23C22/02
Inventor 张大全于印哲李瑾高立新
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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