Preparation method of zirconia nanotube reinforced denture powder
A nanotube, zirconia technology, applied in dental preparations, dentistry, dental prostheses, etc., can solve the problems of poor bonding, uneven dispersion of coupling agents, organic solvent pollution, etc., to achieve chemical stability and biological phase. Good capacitance, improving comprehensive mechanical properties, preventing cross-linking reaction
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Embodiment 1
[0021] (1) Preparation of zirconia nanotubes
[0022] Mix glycerol and formamide at a volume ratio of 1:1, and use the mixed solvent to prepare an electrolyte solution containing 1% ammonium fluoride and 1% water. The electrolyte solution was added into the reaction vessel, the zirconium sheet was used as the anode, and the platinum sheet was used as the cathode, and anodized at room temperature and 50V for 3 hours. After the reaction, the prepared nanotubes were peeled off from the zirconium sheet, washed with water, placed in 2% hydrochloric acid solution for ultrasonic treatment for 30 minutes, then washed with water, dried, and calcined at 500°C for 2 hours to obtain zirconia nanotubes.
[0023] (2) Preparation of zirconia nanotube reinforced dental tray powder
[0024] The calcined zirconia nanotubes were impregnated with 0.5% acetic acid aqueous solution for 60 min, and then dried at 100 °C. Add 0.1 g of vinyltriethoxysilane to 2 g of absolute ethanol, dissolve evenly,...
Embodiment 2
[0028] Zirconia nanotubes were prepared according to the steps in Example 1 (1).
[0029] The calcined zirconia nanotubes were impregnated with 0.1% acetic acid aqueous solution for 60 min, and then dried at 100 °C. Add 0.05 g of vinyltriethoxysilane to 2 g of absolute ethanol, dissolve evenly, add 10 g of zirconia nanotubes impregnated with acetic acid aqueous solution, stir for 10 min, and then slowly heat under stirring to evaporate the ethanol. After the ethanol was almost completely evaporated, the sample was heated at 120° C. for 120 min to obtain zirconia nanotubes loaded with coupling agent.
[0030] Add 3 g of zirconia nanotubes loaded with coupling agent to 100 g of type I base resin, and grind them evenly with a mortar to obtain zirconia nanotube-reinforced toothbrush powder.
Embodiment 3
[0032] Zirconia nanotubes were prepared according to the steps in Example 1 (1).
[0033] The calcined zirconia nanotubes were impregnated with 1.0% acetic acid aqueous solution for 60 min, and then dried at 100 °C. Add 0.2 g of vinyltriethoxysilane to 2 g of absolute ethanol, dissolve evenly, add 10 g of zirconia nanotubes impregnated with acetic acid aqueous solution, stir for 10 min, and then slowly heat under stirring to evaporate the ethanol. After the ethanol was almost completely evaporated, the sample was heated at 120° C. for 120 min to obtain zirconia nanotubes loaded with coupling agent.
[0034] Add 2 g of zirconia nanotubes loaded with coupling agent to 100 g of type I base resin, and grind them evenly with a mortar to obtain zirconia nanotube-reinforced toothbrush powder.
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