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Titanium-copper alloy surface modification method

A titanium-copper alloy and surface treatment technology, applied in the field of medical titanium materials, can solve problems such as cytotoxicity and adverse effects on the human body, and achieve the effect of improving osteogenic performance

Inactive Publication Date: 2019-10-25
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But commonly used Al for sandblasting 2 o 3 Will remain on the surface, easily cause problems such as cytotoxicity, and cause adverse effects on the human body

Method used

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  • Titanium-copper alloy surface modification method
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  • Titanium-copper alloy surface modification method

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Experimental program
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Embodiment Construction

[0023] The implementation process of each embodiment and comparative example is as follows, and the specific parameters are shown in Table 1.

[0024] Use sandpaper to polish the titanium-copper alloy to 2000#, then place it in absolute ethanol for ultrasonic cleaning for 10 minutes, take it out and dry it for later use; hang the material in parallel on the opposite side of the graphite electrode, add hydrofluoric acid solution electrolyte, and use the circulating water cooling system to control Temperature of the acid solution, turn on the stirrer to make the electrolyte uniform; then place the treated sample in deionized water, ultrasonically clean it, take it out, wash it with absolute ethanol for 10 minutes, and dry it.

[0025] Table 1 embodiment and comparative example process parameter

[0026] Copper content, wt% Acid concentration, mL / L voltage, V temperature, ℃ time, min Example 1 5 20 35 5 20 Example 2 5 25 30 18 5 Exampl...

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Abstract

The invention aims to provide a surface treatment process suitable for a titanium-copper alloy. The surface treatment process is characterized in that the cleaned titanium-copper alloy serves as an anode, a graphite electrode serves as a cathode, a hydrofluoric acid solution is used as an electrolyte, electrolytic parameters are set, treatment is carried out for 5-20 minutes, then the surface of the material can be roughened, and micron and nanoscale small holes are formed, the roughness is controllable, and the operation is simple and convenient to implement. According to the process, the antibacterial performance and the osteogenesis promotion performance of the titanium-copper alloy can be improved.

Description

technical field [0001] The invention relates to the field of medical titanium metal materials, in particular to a method for modifying the surface of a titanium-copper alloy. Background technique [0002] Titanium and its alloys have the advantages of good biocompatibility, corrosion resistance, and elastic modulus similar to that of bone tissue, and have been widely used in the medical field. Especially in orthopedics, such as bone plates, bone nails, femoral heads, dental implants, etc., are all made of titanium or titanium alloys. Since medical titanium alloy is a biologically inert material and has no biological activity itself, after implantation in the body, it has no biological activity and poor osseointegration, which easily leads to clinical problems such as implant loosening. [0003] In order to solve this problem, the team of Yang Ke, a researcher at the Institute of Metal Research, Chinese Academy of Sciences, took the lead in developing a titanium-copper alloy...

Claims

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Application Information

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IPC IPC(8): C25F3/08
CPCC25F3/08
Inventor 张书源任玲杨柯孙子晴
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI