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Preparation method and application of titanium alloy anodic oxidation super-hydrophobic coating

A technology of super-hydrophobic coating and anodic oxidation, which is applied in the direction of chemical instruments and methods, metal material coating technology, coating, etc., can solve the problems of low hardness, poor wear resistance, and limitations of titanium alloys, and achieve simple preparation process, The effect of small spreading diameter and few crystal nuclei

Inactive Publication Date: 2021-09-17
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the low hardness, poor wear resistance and lack of anti-fouling, anti-fog, anti-freezing and self-cleaning properties of titanium alloys, its application has been limited to a certain extent.

Method used

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  • Preparation method and application of titanium alloy anodic oxidation super-hydrophobic coating
  • Preparation method and application of titanium alloy anodic oxidation super-hydrophobic coating
  • Preparation method and application of titanium alloy anodic oxidation super-hydrophobic coating

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A preparation method of titanium alloy anodized superhydrophobic coating:

[0041] (1) Polish the TA2 titanium alloy plate with 800 mesh, 1000 mesh, 2000 mesh, and 4000 mesh metallographic sandpaper for 4 times, each time for 20 minutes, rinse with deionized water and acetone, and place it in the metallographic test after drying. Polishing in the sample polishing machine, rinsed with deionized water and acetone after polishing, and dried.

[0042](2) Mix and stir deionized water and ethylene glycol with a volume ratio of 2:8, then cool to room temperature to obtain an aqueous solution of ethylene glycol, add 0.6wt% ammonium fluoride of the aqueous solution quality in ethylene glycol, and place in a constant temperature magnetic stirrer Stir for 10 minutes to obtain the desired electrolyte.

[0043] (3) Use the titanium alloy plate obtained in step (1) as the anode, and the pure titanium sheet as the cathode, add the electrolyte prepared in step (2), and oxidize for 2 h...

Embodiment 2

[0046] Same as Example 1, the difference is that the anodic oxidation potential in step (3) is 35V.

Embodiment 3

[0048] Same as Example 1, the difference is that the anodic oxidation potential in step (3) is 45V.

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Abstract

The invention discloses a preparation method and application of a titanium alloy anodic oxidation super-hydrophobic coating, and belongs to the technical field of alloy surface modification. The preparation method of the titanium alloy anodic oxidation super-hydrophobic coating comprises the steps that a titanium alloy is put into an electrolyte to serve as an anode to carry out anodic oxidation to obtain a titanium alloy with an oxidation film, and after being subjected to heat treatment, the titanium alloy with the oxidation film is soaked in a fluorine-containing siloxane solution to obtain the titanium alloy anodic oxidation super-hydrophobic coating. The preparation process is simple, the requirements for test conditions and equipment are low, the ideal surface oxidation film is obtained through the anodic oxidation method, the super-hydrophobic coating is obtained through low-surface-energy substance modification, the super-hydrophobic coating prepared through the method is uniform, stable and capable of being stored for a long time, and the binding force between a film layer and a matrix is good. The performance is excellent in self-cleaning testing, anti-icing testing and friction resistance testing.

Description

technical field [0001] The invention relates to the technical field of alloy surface modification, in particular to a preparation method and application of a titanium alloy anodized superhydrophobic coating. Background technique [0002] Since the middle of the 20th century, titanium alloys have developed rapidly as high-performance, high-strength light alloy materials. In addition, titanium and titanium alloys have good corrosion resistance, heat resistance, biocompatibility, non-magnetic and other advantages, and are increasingly used in the fields of ships, biomedicine, vehicles, energy and daily necessities. In the field of ships, titanium alloys are used as the hull of ships to resist seawater corrosion and deep water pressure. As a non-magnetic material, titanium alloy also has good anti-monitoring ability. In the field of automobile manufacturing, titanium alloy has obvious advantages in the development of light vehicles due to its low density. At this stage, titani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/26C23C26/00C22F1/18C21D9/00C09K3/18
CPCC25D11/26C23C26/00C22F1/183C21D9/0081C09K3/18
Inventor 朱本峰卫国英王学胜杨雨萌陈思安
Owner CHINA JILIANG UNIV