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Preparation method of bionic no-modification super-hydrophobic Cu-Zn-CeO2 layer and application thereof

A cu-zn-ceo2, super-hydrophobic technology, applied in coatings, electrolytic coatings, etc., can solve problems such as reducing the stability of super-hydrophobic surfaces, and achieve the effect of excellent hydrophobicity

Active Publication Date: 2020-01-14
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors found that most of the low-energy modifiers are organic substances such as fluorine or alkanes, which are usually fragile and easily soluble in organic solvents, which greatly reduces the stability of the superhydrophobic surface.

Method used

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  • Preparation method of bionic no-modification super-hydrophobic Cu-Zn-CeO2 layer and application thereof
  • Preparation method of bionic no-modification super-hydrophobic Cu-Zn-CeO2 layer and application thereof
  • Preparation method of bionic no-modification super-hydrophobic Cu-Zn-CeO2 layer and application thereof

Examples

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Effect test

no. 1 example

[0038] first embodiment , a biomimetic modification-free superhydrophobic Cu-Zn-CeO 2 The preparation method of layer, the steps are:

[0039] (1) Pretreatment of samples: Cut X90 pipeline steel and brass into 20mm×50mm×3mm and 20mm×50mm×5mm samples respectively, and use 400#, 1000#, 1500#, 2000# water mills in sequence Grind with sandpaper, then ultrasonically clean with anhydrous ethanol solution for 10 minutes, and dry with a hair dryer.

[0040] (2) Configure the electrodeposition solution:

[0041] Dissolve copper sulfate pentahydrate in 50 mL of deionized water, then add potassium sodium tartrate to obtain solution A, wherein the concentrations of copper sulfate and potassium sodium tartrate are 20 g / L and 100 g / L respectively;

[0042] Dissolve zinc sulfate heptahydrate in 50mL deionized water, then add potassium sodium tartrate to obtain solution B, wherein the concentrations of zinc sulfate and potassium sodium tartrate are 30g / L and 100g / L respectively;

[0043]...

no. 2 example

[0046] second embodiment , a biomimetic modification-free superhydrophobic Cu-Zn-CeO 2 The preparation method of layer, the steps are:

[0047] (1) Pretreatment of the sample: same as in Example 1.

[0048] (2) Configure the electrodeposition solution:

[0049] Dissolve copper chloride dihydrate in 50mL deionized water, then add potassium sodium tartrate to obtain solution A, wherein the concentrations of copper chloride and potassium sodium tartrate are respectively 10g / L and 100g / L;

[0050] Dissolve zinc chloride dihydrate in 50mL deionized water, then add potassium sodium tartrate to obtain solution B, wherein the concentrations of zinc chloride and potassium sodium tartrate are respectively 10g / L and 100g / L;

[0051] Mix solution A with solution B, then add 4g (40g / L) sodium hydroxide to the mixed solution, and finally add 0.4g (4g / L) nano CeO 2 (particle size 20-50nm), stir with a magnetic stirrer for 10min to obtain an electrodeposition solution.

[0052] (3) Pret...

no. 3 example

[0054] third embodiment , a biomimetic modification-free superhydrophobic Cu-Zn-CeO 2 The preparation method of layer, the steps are:

[0055] (1) Pretreatment of the sample: same as in Example 1.

[0056] (2) Configure the electrodeposition solution:

[0057] Copper nitrate pentahydrate was dissolved in 50 mL of deionized water, and potassium sodium tartrate was added to obtain solution A, wherein the concentrations of copper nitrate and potassium sodium tartrate were 30 g / L and 100 g / L respectively;

[0058] Dissolve zinc nitrate pentahydrate in 50 mL of deionized water, then add potassium sodium tartrate to obtain solution B, wherein the concentrations of zinc nitrate and potassium sodium tartrate are respectively 35 g / L and 100 g / L;

[0059] Mix solution A with solution B, then add 6g (60g / L) sodium hydroxide to the mixed solution, and finally add 1.2g (12g / L) nano-CeO 2 (particle size 20-50nm), stir with a magnetic stirrer for 20min to obtain an electrodeposition sol...

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Abstract

The invention relates to the technical field of metal material surface modification, in particular to a preparation method of a bionic no-modification super-hydrophobic Cu-Zn-CeO2 layer and application thereof. The method comprises the following steps: 1) an electro-deposition solution is prepared, a water soluble copper salt solution and a zinc salt solution are mixed with seignette salt to obtain a solution A and a solution B for future use, then, after the solution A and the solution B are mixed, sodium hydroxide is added, and finally, nanometer CeO2 is added for uniform stirring; and 2) the electro-deposition solution obtained in the step 1) is deposited on the surface of metal to form a bionic micro-nano composite structure Cu-Zn-CeO2 layer by using an electro-deposition technology, and then, the metal is naturally placed under the room-temperature condition by set time to obtain a finished product. The method is combined with self dewatering characteristics of CeO2 and oxygen absorbability of CuO / ZnO to achieve super-hydrophobicity of the formed Cu-Zn-CeO2 layer under the condition of no low-energy modification.

Description

technical field [0001] The invention relates to the technical field of surface modification of metal materials, in particular to a bionic modification-free superhydrophobic Cu-Zn-CeO 2 Layer preparation method and its application. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] At present, most of my country's onshore oilfields are in the middle and late stage of exploitation, and the water content in the produced fluid is constantly rising, and the scaling problem of oil and gas well pipes, surface gathering and transportation system pipelines and equipment is becoming more and more serious. Descaling will affect production, consume a large amount of desca...

Claims

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Application Information

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IPC IPC(8): C25D15/00C25D3/56
CPCC25D3/56C25D15/00
Inventor 李好彭玉洁
Owner SHANDONG UNIV OF SCI & TECH
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