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Method for regulating underwater gas by superhydrophobic copper cone and its application in pressure sensor

A super-hydrophobic, water-copper technology, applied in the measurement of fluid pressure, instruments, measurement devices, etc., can solve problems such as bubble difficulty, and achieve the effects of simple preparation method, low cost, and easy availability of raw materials

Active Publication Date: 2019-03-22
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, it is very difficult to directly control the size of the bubble

Method used

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  • Method for regulating underwater gas by superhydrophobic copper cone and its application in pressure sensor
  • Method for regulating underwater gas by superhydrophobic copper cone and its application in pressure sensor
  • Method for regulating underwater gas by superhydrophobic copper cone and its application in pressure sensor

Examples

Experimental program
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Effect test

preparation example Construction

[0030] (2) Preparation of copper cone: Immerse the copper wire in (1) in a small glass tank containing 50 mL of 0.1 mol / L copper sulfate solution, use it as the anode, and use the copper sheet as the cathode, and the electrolysis voltage is 10V , fix the small glass tank on the lifting table (the lifting speed is 1.0mm / s), after about 300 cycles, the copper cone is formed (such as figure 1 shown).

[0031] (3) Preparation of superhydrophobic copper cones: the copper cones prepared in (2) were washed sequentially with 0.1 mol / L hydrochloric acid and deionized water, and dried with nitrogen. followed by superhydrophobic SiO 2 The nanoparticle solution modified the copper cone with a gradient, thus successfully preparing the superhydrophobic copper cone. Its morphology and partial enlargement (such as figure 2 shown)

[0032] (4) Superhydrophobic copper cone to regulate underwater gas: fix the bottom end of the superhydrophobic copper cone successfully prepared in (3) on a 2...

Embodiment 1

[0036] The method proposed in this embodiment to regulate underwater gas by using the superhydrophobic copper cone prepared by the present invention includes the following steps;

[0037](1) Copper wire pretreatment: Polish a commercially available copper wire with a diameter of 1mm with P1500 sandpaper, and then ultrasonically wash it with sodium hydroxide, hydrochloric acid, ethanol, acetone, and deionized water for 15 minutes, and then dry it with nitrogen for use .

[0038] (2) Preparation of copper cone: Immerse the copper wire in (1) in a small glass tank containing 50 mL of 0.1 mol / L copper sulfate solution, use it as the anode, and use the copper sheet as the cathode, and the electrolysis voltage is 10V , fix the small glass tank on the lifting platform (the lifting speed is 1.0mm / s), and after about 300 cycles, the copper cone is formed.

[0039] (3) Preparation of superhydrophobic copper cones: the copper cones prepared in (2) were washed sequentially with 0.1 mol / L...

Embodiment 2

[0043] The method proposed in this embodiment to regulate underwater gas by using the superhydrophobic copper cone prepared by the present invention includes the following steps;

[0044] (1) Copper wire pretreatment: Polish a commercially available copper wire with a diameter of 1mm with P1500 sandpaper, and then ultrasonically wash it with sodium hydroxide, hydrochloric acid, ethanol, acetone, and deionized water for 15 minutes, and then dry it with nitrogen for use .

[0045] (2) Preparation of copper cone: Immerse the copper wire in (1) in a small glass tank containing 50 mL of 0.1 mol / L copper sulfate solution, use it as the anode, and use the copper sheet as the cathode, and the electrolysis voltage is 10V , fix the small glass tank on the lifting platform (the lifting speed is 1.0mm / s), and after about 300 cycles, the copper cone is formed.

[0046] (3) Preparation of superhydrophobic copper cones: the copper cones prepared in (2) were washed sequentially with 0.1 mol / ...

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Abstract

The invention relates to a method for regulating and controlling underwater gas through a superhydrophobic copper cone. The method comprises the following steps: copper wire pretreatment, preparation of a copper cone, preparation of the superhydrophobic copper cone, underwater gas regulation and control through the superhydrophobic copper cone, application of the superhydrophobic copper cone to a pressure sensor, and the like. The preparation methods are simple, and the bionic superhydrophobic copper cone can be prepared through gradient electrochemical corrosion and superhydrophobic SiO2 nano-particle gradient modification, and has the water contact angle of 160.5 degrees. Accurate gas regulation and control are realized, and another direction is provided for preparing the novel pressure sensor.

Description

technical field [0001] The invention belongs to the technical field of functional materials and fluid transportation, and in particular relates to a preparation method of a superhydrophobic copper cone, which can be used for precise control of underwater gas, and solves the problem that the volume of bubbles is difficult to control during the generation and rise of bubbles. A new type of pressure sensor is also provided. Background technique [0002] The presence of air bubbles in water has a wide range of uses, such as food engineering, flotation of useful minerals and drag reduction of underwater ships. However, in almost all applications, size control of air bubbles is important. In food engineering, the size of the air bubbles will affect the mouthfeel of the beverage. Champagne tastes better than sparkling wine mainly because the size of the bubbles in the former is smaller than in the latter. In the flotation of useful minerals, for particles below the micron level,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25F3/02G01L11/00
CPCC25F3/02G01L11/00
Inventor 王景明薛秀粘江雷
Owner BEIHANG UNIV
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