A kind of "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and its preparation method
A technology of fluorinated hydroxyapatite and composite resin, which is applied in the field of dental restoration materials and its preparation, can solve the problem that dental restoration resins cannot have excellent mechanical strength and functionality at the same time, and achieve excellent mechanical strength and function properties, enhance acid resistance and stability, improve mechanical properties and service performance
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Embodiment 1
[0038] (1) Preparation of spherical fluorinated hydroxyapatite (E-FHAp) particles similar to "Donkey bullying mouth"
[0039] Weigh 18.3g of EDTA disodium salt and 18.3g of calcium nitrate (tetrahydrate), pour it into a beaker with 400ml deionized water, add the rotor and stir on a magnetic stirrer until completely dissolved, then weigh ten Add 15.6 g of sodium dihydrogen phosphate dihydrate to the above solution, and stir until the solution becomes transparent. Then, with the solution continuing to stir, add flaky solid sodium hydroxide to adjust the pH of the solution to 12.5, then add 0.06 g of sodium fluoride to the solution, and continue stirring for 20 minutes. Afterwards, the solution was placed in an oil bath at 105° C., condensed and refluxed and allowed to stand for reaction for 1 h. After the reaction, the particles were centrifuged and washed with deionized water, and dried in vacuum to obtain F-HAp particles.
[0040] (2) Silane modification of E-FHAp
[0041]A...
Embodiment 2
[0049] (1) Preparation of spherical fluorinated hydroxyapatite (E-FHAp) particles similar to "Donkey bullying mouth"
[0050] Weigh 29.8g of EDTA disodium salt and 18.9g of calcium nitrate (tetrahydrate), pour it into a beaker with 400ml deionized water, add the rotor and stir on a magnetic stirrer until completely dissolved, then weigh ten Add 17.2 g of sodium dihydrogen phosphate dihydrate to the above solution, and stir the solution until it becomes transparent. Then, with the solution continuing to stir, add flaky solid sodium hydroxide to adjust the pH of the solution to 12.5, then add 0.34 g of sodium fluoride to the solution, and continue stirring for 20 minutes. Afterwards, the solution was placed in an oil bath at 105° C., condensed and refluxed and allowed to stand for reaction for 1 h. After the reaction is completed, the particles are centrifuged and washed with deionized water, and dried in vacuum to obtain E-FHAp particles.
[0051] (2) Silane modification of E...
Embodiment 3
[0063] (1) Preparation of spherical fluorinated hydroxyapatite (E-FHAp) particles similar to "Donkey bullying mouth"
[0064] Weigh 33.8g of EDTA disodium salt and 17.9g of calcium nitrate (tetrahydrate), pour it into a beaker with 400ml of deionized water, add the rotor and stir on a magnetic stirrer until completely dissolved, then weigh ten Add 23.5 g of sodium dihydrogen phosphate dihydrate to the above solution, and stir until the solution becomes transparent. Then, with the solution continuing to stir, add flake solid sodium hydroxide to adjust the pH of the solution to 12.5, then add 0.56 g of sodium fluoride to the solution, and continue stirring for 20 minutes. Afterwards, the solution was placed in an oil bath at 105° C., condensed and refluxed and allowed to stand for reaction for 1 h. After the reaction is completed, the particles are centrifuged and washed with deionized water, and dried in vacuum to obtain E-FHAp particles.
[0065] (2) Silane modification of E...
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