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
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[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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