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TiNb-alloy surface biological activating treatment method

A bioactivation and treatment method technology, applied in the field of TiNb alloy surface bioactivation treatment, to achieve the effects of improving biocompatibility and bioactivity, perfect crystal lattice development, high specific surface area and roughness

Active Publication Date: 2013-09-11
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although TiNb alloy has excellent comprehensive mechanical properties, like other titanium alloys, TiNb alloy itself is still a biologically inert material.

Method used

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  • TiNb-alloy surface biological activating treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1. Polish the TiNb alloy sheet with a size of 20mm×10mm×2mm sequentially with 150#, 600# and 1000# sandpaper, then place the polished TiNb alloy sheet in absolute ethanol for ultrasonic degreasing, and then use Naturally air-dried after ionic water cleaning; the mass percentage of Nb in the TiNb alloy sheet is 20%, and the balance is Ti and other unavoidable impurities;

[0024] Step 2, put the TiNb alloy sheet air-dried in step 1 into a hydrothermal kettle with a polytetrafluoroethylene lining equipped with a mixed aqueous solution of hydrogen peroxide and hydrofluoric acid, then seal the hydrothermal kettle and place it in an oven. The hydrothermal reaction was carried out for 6 hours at a temperature of 180°C; the concentration of hydrofluoric acid in the mixed aqueous solution was 0.064mol / L; the volume percentage of hydrogen peroxide in the mixed aqueous solution was 28.5%; the volume of the hydrothermal kettle The filling degree is 70%;

[0025] Step 3. Take...

Embodiment 2

[0029] Step 1. Polish the TiNb alloy sheet with a Nb mass percentage of 20% and a size of 20mm×10mm×2mm with 150#, 600# and 1000# sandpaper in sequence, and then place the polished TiNb alloy sheet in an anhydrous Ultrasonic degreasing in ethanol, then cleaning with deionized water and air drying;

[0030] Step 2, put the TiNb alloy sheet air-dried in step 1 into a hydrothermal kettle with a polytetrafluoroethylene lining equipped with a mixed aqueous solution of hydrogen peroxide and hydrofluoric acid, then seal the hydrothermal kettle and place it in an oven. The hydrothermal reaction was carried out for 14 hours at a temperature of 180°C; the concentration of hydrofluoric acid in the mixed aqueous solution was 0.064mol / L; the volume percentage of hydrogen peroxide in the mixed aqueous solution was 28.5%; the volume of the hydrothermal kettle The filling degree is 70%;

[0031] Step 3. Take out the hydrothermal kettle after the reaction in step 2 from the oven, take out the...

Embodiment 3

[0035] Step 1. Polish the TiNb alloy sheet with a mass percentage of Nb of 10% and a size of 40mm×8mm×1mm with 150#, 600# and 1000# sandpaper in sequence, and then place the polished TiNb alloy sheet in an anhydrous Ultrasonic degreasing in ethanol, then cleaning with deionized water and air drying;

[0036] Step 2, put the TiNb alloy sheet air-dried in step 1 into a hydrothermal kettle with a polytetrafluoroethylene lining equipped with a mixed aqueous solution of hydrogen peroxide and hydrofluoric acid, then seal the hydrothermal kettle and place it in an oven. The hydrothermal reaction was carried out for 24 hours at a temperature of 160°C; the concentration of hydrofluoric acid in the mixed aqueous solution was 0.032mol / L; the volume percentage of hydrogen peroxide in the mixed aqueous solution was 15%; the volume of the hydrothermal kettle The filling degree is 80%;

[0037]Step 3. Take out the hydrothermal kettle after the reaction in step 2 from the oven, take out the ...

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Abstract

The invention discloses a TiNb-alloy surface biological activating treatment method. The method includes: firstly, ultrasonically degreasing, washing and naturally drying a polished TiNb-alloy sheet; secondly, placing the dried TiNb-alloy sheet into a hydrothermal reactor containing mixed aqueous solution of hydrogen peroxide and hydrofluoric acid, sealing the hydrothermal reactor and then placing the hydrothermal reactor in an oven to complete hydrothermal reaction; and thirdly, cooling naturally, taking the TiNb-alloy sheet out, washing and naturally drying the TiNb-alloy sheet so as to obtain the TiNb alloy sheet with surfaces covered by TiO2 films having biological activity. The method requires low cost, can be realized by simple operation and is easy to be implemented in scale industrially. A TiO2 film material prepared by the method is composed of nano sheets in a self-assembling manner, and uniform porous microballoons are formed on the surfaces of the TiNb alloy, so that the TiNb alloy has large specific surface area and high roughness, attachment, multiplication and differentiation of osteoblasts on surfaces of the TiNb alloy are facilitated, and biocompatibility and bioactivity of the TiNb alloy are improved.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials and biomaterials, and in particular relates to a surface bioactivation treatment method of TiNb alloy. Background technique [0002] Biomedical titanium alloys are widely used as repair and replacement materials for hard tissues such as human bones and teeth due to their excellent mechanical properties and good corrosion resistance. However, there are still many deficiencies in the currently used medical titanium alloys, such as containing toxic elements such as Al and V, and high elastic modulus. Therefore, the development of new titanium alloys for surgical implants with good biocompatibility and lower elastic modulus has become an effective way to solve this problem. [0003] TiNb alloy is a new type of β-titanium alloy, which has an elastic modulus closer to that of human bone, so it can significantly weaken the stress shielding effect between the implant and surrounding tissues a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/54C23C22/73B82Y40/00
Inventor 李纲汤慧萍张文彦李广忠
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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