Preparation method for directly generating hydroxyapatite-containing biological ceramic membrane on surface of titanium
A technology of hydroxyapatite and bioceramic membranes, which is applied in the field of material processing, can solve the problems of low electrolyte utilization efficiency, difficult control of the working process, and poor film formation efficiency, and achieves simple and easy-to-operate preparation methods, low cost, and distributed uniform effect
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[0017] Below in conjunction with embodiment the present invention is described in further detail.
[0018] 1. Step 1: Preprocessing.
[0019] Grind the 10×10×3mm titanium sheet with 280#, 500#, 800#, 1000#, 1500# sandpaper in sequence, and the material of the titanium sheet is Ti6Al4V, then ultrasonically clean it with 99.7% absolute ethanol for 5 minutes, and then use a blower Blow dry with cold air.
[0020] Step 2: Prepare Electrolyte Solution
[0021] Use deionized water as a solvent to prepare the electrolyte, and the ingredients are: 0.025mol / L calcium dihydrogen phosphate, 0.075mol / L calcium acetate, 0.015mol / L citric acid, 0.015mol / L EDTA, and add sodium hydroxide to adjust the pH Adjust the value to 5~6.
[0022] Step 3: Micro-arc oxidation
[0023] The titanium sheet is used as the anode, the stainless steel container filled with the electrolyte solution is used as the cathode, the AC pulse power supply is used, the duty ratio is 12%, the frequency is 150HZ, the ...
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