A kind of preparation method of cupronickel b30 with superhydrophobic surface of corrosion inhibition performance

A super-hydrophobic surface, cupronickel technology, applied in the field of electrochemistry

Inactive Publication Date: 2011-12-07
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the studies have been reported on the preparation process, and the introduction of it into the anti-corrosion field has not been studied in the anti-corrosion field of cupronickel B30 in seawater.

Method used

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  • A kind of preparation method of cupronickel b30 with superhydrophobic surface of corrosion inhibition performance
  • A kind of preparation method of cupronickel b30 with superhydrophobic surface of corrosion inhibition performance
  • A kind of preparation method of cupronickel b30 with superhydrophobic surface of corrosion inhibition performance

Examples

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Comparison scheme
Effect test

Embodiment 1

[0040] A kind of preparation method of the cupronickel B30 with the superhydrophobic surface of anticorrosion property, comprises the steps:

[0041] (1) Preparation of etching solution

[0042] At a concentration of 20% (w) FeCl 3 Adding hydrochloric acid with a concentration of 35-37% (w) into the aqueous solution to make the concentration of hydrochloric acid in the etching solution 0.33% (v);

[0043] (2), pretreatment of cupronickel

[0044] Divide 6 specifications into (1×1)cm 2 Cupronickel B30 electrodes and 6 pieces (70×10×2)cm 2 The white copper B30 sheet is polished by 1#, 3#, 6# metallographic sandpaper in turn, cleaned with an ultrasonic cleaner in acetone solution for about 5 minutes, and then rinsed with ethanol and deionized water in order to remove surface oil and dirt. grease;

[0045] (3) Etching on the surface of cupronickel

[0046] Put 5 cupronickel B30 electrodes and 5 cupronickel B30 sheets pretreated in step (2) into the etching solution obtained ...

Embodiment 2

[0058] A preparation method of cupronickel B30 with super-hydrophobic surface with corrosion inhibition performance, comprising the following steps:

[0059] (1) Preparation of etching solution

[0060] Concentrations of 4.8%(w), 9%(w), 13%(w), 16.7%(w) and 20%(w) FeCl 3 Add hydrochloric acid with a concentration of 35-37% (w) to the aqueous solution, so that the concentration of hydrochloric acid in the etching solution is 0.33% (v);

[0061] (2) Pretreatment of cupronickel B30

[0062] The 6 sizes are (1×1)cm 2 Cupronickel 30 electrodes and 6 pieces (70×10×2) cm 2 The white copper B30 pieces are polished with 1#, 3#, and 6# metallographic sandpaper in turn, then cleaned with an ultrasonic cleaner in acetone solution for about 5 minutes, and then rinsed with ethanol and deionized water in turn to remove surface oil and dirt. grease;

[0063] (3) Etching on the surface of cupronickel B30

[0064] Put 5 cupronickel B30 electrodes and 5 cupronickel B30 sheets pretreated in...

Embodiment 3

[0077] A preparation method of cupronickel B30 with super-hydrophobic surface with corrosion inhibition performance, comprising the following steps:

[0078] (1) Preparation of etching solution

[0079] FeCl at a concentration of 9 %(w) 3 Add hydrochloric acid with a concentration of 35-37% (w) to the aqueous solution, so that the concentration of hydrochloric acid in the etching solution is 0.33% (v);

[0080] (2) Pretreatment of cupronickel B30

[0081] The 6 sizes are (1×1)cm 2 cupronickel B30 electrodes and 6 pieces (70×10×2)cm 2 The white copper B30 pieces are ground by 1#, 3#, and 6# metallographic sandpaper in turn, then cleaned with an ultrasonic cleaner in acetone solution for about 5 minutes, and then rinsed with ethanol and deionized water in turn to remove surface oil and dirt. grease;

[0082] (3) Etching on the surface of cupronickel B30

[0083] Put 5 cupronickel B30 electrodes and 5 cupronickel B30 sheets pretreated in step (2) into the etching solution o...

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Abstract

The invention discloses a preparation method of cupronickel B30 with super-hydrophobic surface with corrosion inhibition performance. , and finally obtained a superhydrophobic surface of cupronickel B30 with corrosion inhibition properties. The obtained superhydrophobic surface of cupronickel B30 with corrosion inhibition performance has a contact angle of 152.8° and a corrosion inhibition efficiency of 96.1%.

Description

technical field [0001] The invention relates to a preparation method of cupronickel B30 with a super-hydrophobic surface and belongs to the field of electrochemistry. Background technique [0002] Because of its excellent performance and process performance, cupronickel B30 is widely used in condenser tubes of various ships, piping systems of seawater desalination treatment equipment and heat exchangers of coastal power plants, etc. However, due to the high surface energy of copper, water molecules are easy to adsorb and gather. In different application environments, corrosion will occur to varying degrees with the extension of time, which will bring serious economic losses to production and life. Commonly used anti-corrosion methods (such as adding corrosion inhibitors for water treatment) are facing many problems that need to be solved due to the disadvantages of environmental pollution and large dosage. Therefore, it is necessary to research and develop new anti-corrosio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/02C23F1/18
Inventor 徐群杰邓先钦陆章辉云虹潘红涛
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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