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Preparation method of anti-creeping and anti-corrosive titanium or titanium alloy material

A titanium alloy and titanium corrosion technology, which is applied in the field of preparation of anti-crawling and anti-corrosion titanium or titanium alloy materials, can solve problems such as the difficulty of constructing a super-oleophobic surface, achieve excellent corrosion resistance, reduce air resistance, and increase conveying speed Effect

Active Publication Date: 2012-08-22
甘肃中安瑞科科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, super-oleophobic surfaces have higher requirements on the microstructure of materials. In recent years, there have been only occasional literatures on the realization of super-oleophobic properties of special materials in the laboratory, and there have been no reports on the realization of super-oleophobic properties of related engineering materials.
It is particularly difficult to construct a super-oleophobic surface on the surface of engineering materials titanium and titanium alloys, and there are no related patents or literature reports so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1: Ultrasonic cleaning the surface of the titanium metal with water, acetone and ethanol as the washing liquid, and then drying it, using laser micromachining technology to construct a striped micron structure, and then ultrasonic cleaning to remove surface suspended impurities to obtain a surface micron structured titanium material;

[0023] Step 2: Use the micron-structured titanium material on the surface of Step 1 as the anode, and the graphite sheet as the cathode, and perform anodic oxidation treatment in an aqueous electrolyte solution containing 0.1 wt% NaF, the oxidation voltage is 100V, the oxidation time is 5 minutes, and the temperature At 0-5°C, a layer of titanium oxide nanotube arrays is formed on the surface of the titanium material to obtain a micro-nano structured titanium surface;

[0024] Step 3: Spin-coat perfluorooctadecyltrichlorosilane onto the microstructured titanium-based surface in step 1 for chemical modification, and heat-treat at 120°C...

Embodiment 2

[0027] Step 1: Ultrasonic cleaning the surface of the titanium metal with water, acetone and ethanol as the washing liquid, and then drying it, using laser micromachining technology to construct a cross-reticular micron structure, and then ultrasonically cleaning to remove surface suspended impurities to obtain surface microstructured titanium material;

[0028] Step 2: Using step 1 surface microstructured titanium material as anode and graphite sheet as cathode, in 10wt% NH 4 Anodic oxidation treatment is carried out in the ethylene glycol electrolyte of F, the oxidation voltage is 10V, the oxidation time is 1 hour, and the temperature is 0-10°C. A layer of titanium oxide nanotube arrays is formed on the surface of the titanium material to obtain a micro-nano structured Titanium surface;

[0029] Step 3: Spin-coat perfluorooctadecyltrichlorosilane onto the microstructured titanium-based surface in step 1 for chemical modification, and heat-treat at 100°C for 1 hour to obtain...

Embodiment 3

[0032] Step 1: Ultrasonic cleaning the titanium alloy with water, acetone and ethanol as the washing liquid, and then drying it, using laser micromachining technology to construct a porous micro-depressed structure, and then ultrasonic cleaning to remove surface suspended impurities to obtain a surface micro-structured titanium alloy surface ;

[0033] Step 2: Use the micron-structured titanium alloy on the surface of step 1 as the anode, and the graphite sheet as the cathode, and perform anodic oxidation treatment in a formamide electrolyte containing 1 wt% HCl, the oxidation voltage is 150V, the oxidation time is 2 hours, and the temperature At 15°C, a layer of titanium oxide nanotube arrays is formed on the surface of the titanium alloy to obtain a micro-nano structured titanium surface;

[0034] Step 3: Evaporate and deposit perfluorooctyl siloxane onto the microstructured titanium alloy surface in step 1 for chemical modification, and heat treat at 80°C for 1.5 hours to o...

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PUM

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Abstract

The invention discloses a preparation method of an anti-creeping and anti-corrosive titanium or titanium alloy material with a super-hydrophobic and super-oleophobic surface. The preparation method comprises the following steps: microprocessing the surface of metal titanium or titanium alloy through laser etching to obtain a roughened surface with a micron structure; then, forming a layer of titanium dioxide nanotube array film on the surface of the micron structure through anodic oxidation treatment; and finally, modifying by perfluorosilane or perfluorosiloxane to obtain the super-hydrophobic and super-oleophobic surface. The microstructure on the surface of the prepared metal titanium and titanium alloy is very stable and has good high temperature resistance; and after the chemical modification, the surface has super-hydrophobic (acid, base and salt solution) and super-oleophobic property, namely the contact angles to most of organic liquids and aqueous solutions are more than 150 degrees.

Description

technical field [0001] The invention relates to a general method for constructing a super-amphiphobic surface on the surface of titanium or titanium alloy, in particular to a preparation method of anti-crawling and anti-corrosion titanium or titanium alloy material. Background technique [0002] As a new functional material, titanium or titanium alloy has many excellent comprehensive properties, such as low density, high specific strength and specific fracture toughness, good low temperature toughness, excellent corrosion resistance, and good biocompatibility. Therefore, they occupy an extremely important position in engineering materials used in weaponry, aerospace and defense industries. At the same time, titanium or titanium alloys also have unique applications in the chemical industry and daily life. Many countries in the world have recognized the importance of titanium and titanium alloy materials, researched and developed them one after another, and obtained practical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C28/00C23C16/448C25D11/26B23K26/00B23K26/362
Inventor 周峰王道爱刘盈于波胡海媛刘维民
Owner 甘肃中安瑞科科技有限公司
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