Preparation method of a 3D configuration high bonding strength sodium titanate nanofiber coating

A technology of bonding strength and nanofibers, applied in coatings, nanotechnology, nanotechnology, etc., can solve problems such as difficult film formation, and achieve the effect of improving biological activity, improving wettability, and high specific surface area

Active Publication Date: 2022-02-11
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Each modification technology has its own characteristics, but it is difficult to form a film on the surface of titanium implants with complex shapes, such as at the edge or in the hole

Method used

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  • Preparation method of a 3D configuration high bonding strength sodium titanate nanofiber coating
  • Preparation method of a 3D configuration high bonding strength sodium titanate nanofiber coating
  • Preparation method of a 3D configuration high bonding strength sodium titanate nanofiber coating

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preparation example Construction

[0044] A method for preparing a 3D configuration high bonding strength sodium titanate nanofiber coating, comprising the following steps:

[0045] 1) Mechanical polishing

[0046] Using pure titanium sheet as the base material, use 100#, 400#, 800#, 1500# metallographic sandpaper to smooth the surface of the metal sample, then use acetone, absolute ethanol and deionized water to ultrasonically clean it for 10-20 minutes, respectively. Dry and set aside.

[0047] 2) Etching

[0048] Prepare the etching solution, the proportion is, the volume ratio of nitric acid solution: hydrofluoric acid solution: deionized water is 1:1:8, the mass fraction of the nitric acid solution is 69.2%; the mass fraction of the hydrofluoric acid solution is 40% %, put the mechanically polished titanium sheet into the etching solution to etch for 20-30s, wash it three times with deionized water, and ultrasonically clean it with deionized water for 20-30s, and dry it for later use.

[0049] 3) Hydrot...

Embodiment 1

[0056] First, the titanium sheet is mechanically polished, and the surface of the titanium sheet is polished and smooth with 100#, 400#, 800#, and 1500# metallographic sandpaper in sequence, and then ultrasonically cleaned with acetone, absolute ethanol, and deionized water for 20 minutes, and dried Ready to use, the surface morphology of the titanium sheet is as follows Figure 12 (a) shown. The mechanically polished titanium sheet was etched in the etching solution for 30s, washed three times with deionized water, and ultrasonically cleaned with deionized water for 30s, and dried for use. The surface appearance of the titanium sheet was as follows: Figure 12 (b) shown. Set the concentration to 1.0mol·L -1 The NaOH solution was injected into the hydrothermal reaction kettle, and the filling degree of the solution was 33%, and the pure titanium sample treated according to the above process was soaked in the solution, and the hydrothermal treatment was carried out at 220°C f...

Embodiment 2

[0058] First, the titanium sheet is mechanically polished, and the surface of the titanium sheet is polished and smooth with 100#, 400#, 800#, and 1500# metallographic sandpaper in sequence, and then ultrasonically cleaned with acetone, absolute ethanol, and deionized water for 15 minutes, and then dried stand-by. The mechanically polished titanium sheet was etched in an etching solution for 25 s, washed three times with deionized water, ultrasonically cleaned with deionized water for 25 s, and dried for use. Set the concentration to 1.0mol·L -1 The NaOH solution was injected into the hydrothermal reaction kettle, and the filling degree of the solution was 33%, and the pure titanium sample treated by the above process was soaked in the solution, and it was hydrothermally treated at 220°C for 5 hours. The diameter of the fiber and Both lengths increase, the tip bends, and gathers into bundles. The bundled fibers continue to increase in length, and the ends bend and self-assemb...

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Abstract

The invention discloses a preparation method of a 3D configuration high bonding strength sodium titanate nanofiber coating. Pure titanium sheets are used as a base material, and the surface is polished and smoothed, then cleaned and dried for use; an etching solution is prepared, Put the polished titanium sheet into the etching solution to etch, then wash and dry it for use; soak the obtained pure titanium sample in a concentration of 0.5mol L ‑1 ~1.0mol·L ‑1 In the NaOH solution of 220° C. to 230° C. under the condition of hydrothermal treatment for 2 to 17 hours, a sodium titanate nanofiber coating with high bonding strength can be obtained on the titanium surface. The invention realizes the construction of three-dimensional nanofiber coatings with different geometric configurations on the surface of titanium implants through a simple and easy hydrothermal method, and the construction of the coating is uniform on each surface immersed in the solution, without dead ends and shadowing site, and a gradient 3D coating that can be used to make special bone nails that penetrate cortical bone and cancellous bone can be obtained through the combined action of liquid and gas.

Description

technical field [0001] The invention belongs to the technical field of bioactivation modification of medical metal surfaces, and relates to a preparation technology of a titanium-based medical implant surface bioactive coating, in particular to a preparation method of a 3D configuration high bonding strength sodium titanate nanofiber coating . Background technique [0002] With the development of society and economy, the progress of civilization and the improvement of living standards, human beings attach great importance to their own health and medical rehabilitation industry. At the same time, the pace of life is accelerating, the social population is increasing rapidly, there are a large number of vehicles, and diseases and natural disasters occur frequently, resulting in a sharp increase in the number of people who have been injured by accident. Therefore, the development of biomedical implant materials for the reconstruction and repair of human tissue has huge economic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C26/00C23F1/26A61L27/06A61L27/30A61L27/56B82Y5/00B82Y30/00B82Y40/00
CPCC23C26/00C23F1/26A61L27/06A61L27/306A61L27/56B82Y5/00B82Y30/00B82Y40/00A61L2400/12A61L2420/02A61L2420/08A61L2430/02
Inventor 憨勇王宏
Owner XI AN JIAOTONG UNIV
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