Method for generating nanotube array oxide film on surface of medical porous titanium or titanium alloy
A nanotube array, titanium alloy technology, applied in surface reaction electrolytic coatings, electrolytic coatings, coatings, etc., can solve problems such as unsatisfactory effects, improve surgical success rate and biocompatibility, increase contact opportunities, The effect of increasing biological activity
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Embodiment 1
[0055] Such as image 3 As shown in (a), the porous Ti-6Al-4V sample with a diameter of 10mm and a thickness of 4mm and a porosity of 70% was polished step by step with 150#, 800#, 1200#, 2000# sandpaper on the pre-grinder , ultrasonically cleaned with acetone, absolute ethanol, and deionized water for ten minutes each, and dried in air for later use.
[0056] The process of the described oxidation treatment method is as follows: the anodic oxidation mode, the aqueous electrolyte solution is 1mol / L (NH 4 ) 2 SO 4 , 0.2mol / L NH 4 F, the pH value of the solution is about 6-7, the voltage range is 10-80V, and the oxidation time is 0.5-4h.
[0057] At room temperature, Ti-6Al-4V is used as the anode, the stainless steel container is used as the cathode, and the step-by-step boost method is adopted. The boost rate under different test parameters is 0.5V / s, and the oxidation time begins to count from the boost to the set voltage. . After oxidation, it was cleaned ultrasonicall...
Embodiment 2
[0060] The difference from Example 1 is:
[0061] Such as image 3 As shown in (b), the porous Ti-6Al-4V sample with a diameter of 10mm and a thickness of 3mm and a porosity of 80% was polished step by step with 150#, 800#, 1200#, 2000# sandpaper on the pre-grinder , ultrasonically cleaned with acetone, absolute ethanol, and deionized water for ten minutes each, and dried in air for later use.
[0062] The process of the described oxidation treatment method is as follows: the anodic oxidation mode, the aqueous electrolyte solution is 1mol / L (NH 4 ) 2 SO 4 , 0.2mol / L NH 4 F, the pH value of the solution is about 6-7.
[0063]At room temperature, the porous Ti-6Al-4V is used as the anode, the stainless steel container is used as the cathode, and the step-by-step boost method is adopted. The boost rate under different test parameters is 0.5V / s, and the oxidation time starts after boosting the voltage to the set voltage. timing. After oxidation, it was cleaned ultrasonicall...
Embodiment 3
[0065] The difference from Example 1 is:
[0066] A porous pure Ti sample with a diameter of 10mm and a thickness of 2mm and a porosity of 30% was polished step by step with 150#, 800#, 1200#, 2000# sandpaper on a pre-grinder, and then washed with acetone, absolute ethanol and Ultrasonic cleaning with deionized water for ten minutes each, and drying in air for later use.
[0067] The process of the described oxidation treatment method is as follows: the anodic oxidation mode, the aqueous electrolyte solution is 0.5mol / L (NH 4 ) 2 SO 4 , 0.1mol / L NH 4 F, the pH value of the solution is about 6-7.
[0068] At room temperature, the porous pure Ti is used as the anode, and the stainless steel container is used as the cathode. The step-by-step voltage increase method is adopted. The voltage increase rate under different test parameters is 0.5V / s, and the oxidation time starts to count from the voltage increase to the set voltage. After oxidation, it was cleaned ultrasonically ...
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