Preparation method of surface ZnO super-hydrophobic Cu-Be alloy suitable for aviation sensor

A sensor and super-hydrophobic technology, applied in the field of bionic materials, can solve the problems of expensive low surface energy materials, complex preparation process, high adhesion, etc., and achieve the effect of low cost, low cost and short time

Pending Publication Date: 2021-02-02
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of preparation method that is applicable to the surface ZnO superhydrophobic of the Cu-Be alloy of aeronautical sensor, to overcome the problems of expensive low surface energy material, complex preparation process, poor stability and high adhesion in the existing method defect

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  • Preparation method of surface ZnO super-hydrophobic Cu-Be alloy suitable for aviation sensor

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Experimental program
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Effect test

Embodiment 1

[0015] A method for preparing superhydrophobic surface ZnO of a Cu-Be alloy suitable for aeronautical sensors, the specific steps are as follows:

[0016] 1. Grind the Cu-Be alloy sample with 1000 mesh sandpaper, ultrasonically clean the polished Cu-Be alloy and dry it;

[0017] Two, then the Cu-Be alloy sheet is connected to the cathode, and the carbon sheet is connected to the anode, and put into the Zn(NO3) solution prepared with 50mmol / L for water bath heating, and the water bath temperature is 60°C;

[0018] 3. Electrodeposition is then carried out under a 1.5V regulated power supply, and the electrodeposition time is 20 minutes, and dried after the deposition time is over;

[0019] 4. Then immerse the dried Cu-Be alloy sample in an organic stearic acid solution with a concentration of 5g / L for 10-25min. Allow to dry when finished for a superhydrophobic surface.

[0020] In this implementation case, the contact angle of the ZnO superhydrophobic surface of the Cu-Be allo...

Embodiment 2

[0022] A method for preparing superhydrophobic surface ZnO of a Cu-Be alloy suitable for aeronautical sensors, the specific steps are as follows:

[0023] 1. Grind the Cu-Be alloy sample with 1000 mesh sandpaper, ultrasonically clean the polished Cu-Be alloy and dry it;

[0024] Two, then the Cu-Be alloy sheet is connected to the cathode, and the carbon sheet is connected to the anode, and put into the Zn(NO3) solution prepared with 50mmol / L for water bath heating, and the water bath temperature is 60°C;

[0025] 3. Electrodeposition is then carried out under a 1.5V regulated power supply, and the electrodeposition time is 20 minutes, and dried after the deposition time is over;

[0026] 4. Then immerse the dried Cu-Be alloy sample in an organic stearic acid solution with a concentration of 5g / L for 15min. The organic solution can be selected from ethanol, toluene or n-dodecane. After the low surface energy modification is completed Allow to dry to obtain a superhydrophobic s...

Embodiment 3

[0029] A method for preparing superhydrophobic surface ZnO of a Cu-Be alloy suitable for aeronautical sensors, the specific steps are as follows:

[0030] 1. Grind the Cu-Be alloy sample with 1000 mesh sandpaper, ultrasonically clean the polished Cu-Be alloy and dry it;

[0031] Two, then the Cu-Be alloy sheet is connected to the cathode, and the carbon sheet is connected to the anode, and put into the Zn(NO3)2 solution prepared with 18mmol / L for water bath heating, and the water bath temperature is 60°C;

[0032] 3. Electrodeposition is then carried out under a 1.5V regulated power supply, and the electrodeposition time is 20 minutes, and dried after the deposition time is over;

[0033] 4. Then immerse the dried Cu-Be alloy sample in an organic stearic acid solution with a concentration of 5g / L for 15min. The organic solution can be selected from ethanol, toluene or n-dodecane. After the low surface energy modification is completed Allow to dry to obtain a superhydrophobic ...

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Abstract

The invention discloses a preparation method of a surface ZnO super-hydrophobic Cu-Be alloy suitable for an aviation sensor. A Cu-Be alloy sample is polished with 280-5000-mesh abrasive paper, the polished Cu-Be alloy sample is ultrasonically cleaned and aired, a Cu-Be alloy sheet is connected with a cathode, a carbon sheet is connected with an anode, and the Cu-Be alloy sample is put into a prepared 15-50 mmol/L Zn (NO3)2 solution for water bath heating, wherein the water bath temperature is 50-90 DEG C; then electro-deposition is conducted under a 0.8-1.8 V stabilized voltage supply, whereinthe electro-deposition time ranges from 10 min to 30 min, and airing is conducted after the electro-deposition time is over; and finally, the aired Cu-Be alloy sample is soaked in a stearic acid organic solution with the concentration of 5 g/L for 10-25 min, airing is conducted after low surface energy modification is completed, and then the super-hydrophobic surface can be obtained. The defectsthat in an existing method, low surface energy substances are expensive, the preparation process is complex, stability is poor, and adhesivity is high can be overcome.

Description

technical field [0001] The invention belongs to the field of bionic materials, and in particular relates to a method for preparing ZnO superhydrophobic on the surface of a Cu-Be alloy suitable for aviation sensors. Background technique [0002] The biomimetic superhydrophobic coating on the surface of the lotus leaf (the contact angle is greater than 150°, and the rolling angle is less than 10°). There are very broad application prospects in this field. How to construct a biomimetic superhydrophobic coating on the surface of a lotus leaf and test its performance under different conditions has become one of the key issues in expanding its practical application. [0003] As an alloy with good comprehensive properties, Cu-Be has high strength, high elasticity, good fatigue resistance and heat resistance after quenching and tempering, and also has high electrical conductivity, thermal conductivity and non-magnetic properties. etc., are widely used in avionics devices such as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D9/08C25D5/48B05D7/14B05D7/24B05D5/00
CPCC25D9/08C25D5/48B05D7/14B05D7/24B05D5/00
Inventor 殷祚炷樊凯博薛名山李坚罗一丹谢婵洪珍
Owner NANCHANG HANGKONG UNIVERSITY
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