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

A technology that combines strength and nanofibers, applied in the direction of coating, nanotechnology, nanotechnology, etc., can solve problems such as difficult film formation, and achieve the effect of simple process, stable process and low production cost

Active Publication Date: 2021-01-22
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

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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 sodium titanate nanofiber coating with high bonding strength. The preparation method comprises the following steps: using a pure titanium sheet as a base material, polishing the surface of the pure titanium sheet to be smooth, and cleaning and drying the polished pure titanium sheet for later use; preparing an etching liquid, placing the polished titanium sheet in the etching liquid for etching, and then carrying out cleaning and drying for later use; and soaking the obtained pure titanium sample in a NaOH solution with the concentration of 0.5 mol.L <-1>-1.0 mol.L<-1>, and carrying out hydrothermal treatment at 220-230 DEG C for 2-17 hours to obtain the sodium titanate nanofiber coating with high bonding strength on the titanium surface. The construction of the three-dimensional nanofiber coatings with different geometric configurations on the surface of the titanium implant is realized by a simple and feasible hydrothermal method, and the construction of the coating on each surface immersed in a solution is uniform and consistent without dead angles and shielding parts; and the gradient 3D coating capable of beingused for manufacturing the bone nail special for penetrating through cortical bone and cancellous bone can be obtained through the liquid-gas combined action.

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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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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