Method for preparing micro/nanocomposite photocurable resin
A light-curing resin and micro-nano composite technology, which is applied in dental preparations, pharmaceutical formulations, dental prostheses, etc., to achieve the effect of low cost and simple process
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Embodiment 1
[0021] A kind of preparation method of micro-nano composite photocurable resin, it comprises the steps:
[0022] 1) Surface modification of nanoparticles, using silicon dioxide (SiO 2 ) Nanoparticles are used as nanofillers for dental restorative resins, introducing C=C double bond functional groups that can react with resin monomers through two-step modification:
[0023] ①According to silicon dioxide (SiO 2 ) The mass ratio of nanoparticles to absolute ethanol is 1:30, select absolute ethanol, press silicon dioxide (SiO 2 ) The mass ratio of nanoparticles and γ-aminopropyltriethoxysilane (APS) is 1: 5, and silicon dioxide nanoparticles and γ-aminopropyltriethoxysilane are selected; the silicon dioxide nanoparticles are dispersed In absolute ethanol, the suspension was obtained, and then transferred to the ultrasonic reactor, adding γ-aminopropyltriethoxysilane (APS), and ultrasonically induced the hydroxyl group of the silica nanoparticles in the suspension to react with t...
Embodiment 2
[0028] A kind of preparation method of micro-nano composite photocurable resin, it comprises the steps:
[0029] 1) Surface modification of nanoparticles, using silicon dioxide (SiO 2 ) Nanoparticles are used as nanofillers for dental restorative resins, introducing C=C double bond functional groups that can react with resin monomers through two-step modification:
[0030] ①According to silicon dioxide (SiO 2 ) The mass ratio of nanoparticles to absolute ethanol is 1:50, select absolute ethanol, press silicon dioxide (SiO 2 ) the mass ratio of nanoparticles and γ-aminopropyltriethoxysilane (APS) is 1: 10, select silicon dioxide nanoparticles and γ-aminopropyltriethoxysilane; the silicon dioxide nanoparticles are dispersed In absolute ethanol, the suspension was obtained, and then transferred to the ultrasonic reactor, adding γ-aminopropyltriethoxysilane (APS), and ultrasonically induced the hydroxyl group of the silica nanoparticles in the suspension to react with the γ- Am...
Embodiment 3
[0035] A kind of preparation method of micro-nano composite photocurable resin, it comprises the steps:
[0036] 1) Surface modification of nanoparticles, using silicon dioxide (SiO 2 ) Nanoparticles are used as nanofillers for dental restorative resins, introducing C=C double bond functional groups that can react with resin monomers through two-step modification:
[0037] ①According to silicon dioxide (SiO 2 ) The mass ratio of nanoparticles to absolute ethanol is 1:80, select absolute ethanol, press silicon dioxide (SiO 2 ) the mass ratio of nanoparticles and γ-aminopropyltriethoxysilane (APS) is 1: 15, select silicon dioxide nanoparticles and γ-aminopropyltriethoxysilane; the silicon dioxide nanoparticles are dispersed In absolute ethanol, the suspension was obtained, and then transferred to the ultrasonic reactor, adding γ-aminopropyltriethoxysilane (APS), and ultrasonically induced the hydroxyl group of the silica nanoparticles in the suspension to react with the γ- Am...
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