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Titanium-molybdenum-zirconium metastable beta titanium alloy surface modification method

A β-titanium alloy and surface modification technology, used in pharmaceutical formulations, metal material coating processes, dental preparations, etc., can solve the problems that the preparation technology cannot be realized, and achieve low elastic modulus, high surface biological activity, and broad application. Foreground effect

Active Publication Date: 2021-07-13
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the addition of P element, the main inorganic component of bone, to prepare a micro-nano multi-scale titanium phosphate structure coating on the surface of Ti-Zr-Mo alloy implants is not yet possible with the current preparation technology.
[0005] In view of the above status quo, a low elastic modulus phosphorus-containing titanium alloy material with micron-nano multi-scale and various topographical structures is provided to solve the problem of firm bonding and mechanical matching between traditional titanium alloy implants and bone tissue interfaces and dental implants. The issue of long-term implant stability in the body is of great significance

Method used

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  • Titanium-molybdenum-zirconium metastable beta titanium alloy surface modification method
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  • Titanium-molybdenum-zirconium metastable beta titanium alloy surface modification method

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Effect test

Embodiment 1

[0045] Cut the Ti-12Mo-10Zr alloy into a circular piece of Ф10mm×1mm, and polish it with 400-2000 mesh sandpaper in turn; soak the polished Ti-12Mo-10Zr in hydrofluoric acid, nitric acid and water with a volume ratio of Acid etching treatment in a mixed solution of 1:3:5 for 5 minutes for chemical polishing, followed by ultrasonic cleaning with acetone, absolute ethanol and ultrapure water for 30 minutes, respectively, took out the Ti-12Mo-10Zr alloy sheet, and placed it at a constant temperature of 37 °C.

[0046] Then, the Ti-12Mo-10Zr alloy sheet cleaned after the above pretreatment was placed in a polytetrafluoroethylene reaction kettle by a high-energy hydrothermal method, and the mass ratio was 27%H 2 o 2 +3%H 3 PO 4 Put the mixed aqueous solution into the reaction kettle, tighten the lid of the kettle to keep it airtight, and put the closed reaction kettle into an electric constant temperature blast dryer to react for 24 hours. The reaction temperature is set at 100°C...

Embodiment 2

[0048] Cut the Ti-12Mo-10Zr alloy into a circular piece of Ф10mm×1mm, and polish it with 400-2000 mesh sandpaper in turn; soak the polished Ti-12Mo-10Zr in hydrofluoric acid, nitric acid and water with a volume ratio of Acid etching treatment in a mixed solution of 1:3:5 for 5 minutes for chemical polishing, followed by ultrasonic cleaning with acetone, absolute ethanol and ultrapure water for 30 minutes respectively, and then placed at a constant temperature of 37 °C.

[0049] Then, the Ti-12Mo-10Zr alloy sheet cleaned after the above pretreatment was placed in a polytetrafluoroethylene reaction kettle by a high-energy hydrothermal method, and the mass ratio was 27%H 2 o 2 +3%H 3 PO 4 Put the mixed aqueous solution into the reaction kettle, tighten the lid of the kettle to keep it airtight, and put the closed reaction kettle into an electric constant temperature blast dryer to react for 24 hours. The reaction temperature is set at 140°C and the reaction pressure is 150kpa. ...

Embodiment 3

[0051] Cut the Ti-12Mo-10Zr alloy into a circular piece of Ф10mm×1mm, and polish it with 400-2000 mesh sandpaper in turn; soak the polished Ti-12Mo-10Zr in hydrofluoric acid, nitric acid and water with a volume ratio of The 1:3:5 mixed solution was acid-etched for 5 minutes for chemical polishing, followed by ultrasonic cleaning with acetone, absolute ethanol and ultrapure water for 30 minutes respectively, and the Ti-12Mo-10Zr alloy sheet was taken out and placed at a constant temperature of 37 °C.

[0052] Then the Ti-12Mo-10Zr alloy sheet cleaned after the above pretreatment was placed in a pressure cooker lined with polytetrafluoroethylene by high-energy hydrothermal method, and the mass ratio was 27%H 2 o 2 +3%H 3 PO 4 Put the mixed aqueous solution into the reaction kettle, tighten the lid of the kettle to keep it airtight, and put the closed reaction kettle into an electric constant temperature blast dryer to react for 24 hours. The reaction temperature is set at 180°...

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Abstract

The invention discloses a titanium-molybdenum-zirconium metastable beta titanium alloy surface modification method, and relates to the technical field of medical metal material surface functional modification. The method comprises the following steps: firstly, carrying out acid etching treatment on titanium-molybdenum-zirconium metastable beta titanium alloy, then putting the titanium-molybdenum-zirconium metastable beta titanium alloy into a mixed aqueous solution of H2O2 and H3PO4 for hydrothermal reaction, and finally preparing surface-modified titanium-molybdenum-zirconium metastable beta titanium alloy by controlling reaction conditions. According to the method, the main inorganic component P element of bone is successfully doped into the Ti-Zr-Mo alloy, so that the prepared titanium alloy material has low elastic modulus and high surface bioactivity, is free of biologically toxic elements, and has wide application prospects in the fields of clinical prosthodontics, implantation, orthodontics, hard tissue repair and the like.

Description

technical field [0001] The invention relates to the technical field of surface functional modification of medical metal materials, in particular to a method for modifying the surface of a titanium-molybdenum-zirconium metastable β-titanium alloy. Background technique [0002] Titanium and titanium alloys are widely used in the field of clinical oral implants due to their light weight, good corrosion resistance, and good biocompatibility, but their elastic modulus (>110GPa) is much higher than that of human jawbone (10- 30GPa), it is easy to cause long-term "stress shielding and stress stimulation (Stress shielding effect)", resulting in bone tissue resorption or atrophy around the implant root; in addition, harmful elements such as Ni, Al, V in titanium alloys are likely to cause cell and tissue toxicity , lead to organ damage, osteomalacia, anemia and nervous disorders and other complications, the above factors make the short-term clinical (5-10 years) repair effect is s...

Claims

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Application Information

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IPC IPC(8): C23C22/78C23C22/08C23F1/26A61L27/32A61L27/06A61K6/838
CPCA61L27/06A61L27/32A61K6/838C23C22/08C23C22/78C23F1/26
Inventor 郭志君蔡变云孙纯纯徐欢沈宝龙
Owner CHINA UNIV OF MINING & TECH
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