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Preparation method of surface functionalized zirconia nano particle for dental repair resin

A surface functionalization and nanoparticle technology, which is applied in nanotechnology, zirconia, dental preparations, etc. for materials and surface science, to achieve high bending strength, improved dental materials, and simple processes

Inactive Publication Date: 2012-06-27
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is often reported in the literature and patents that the coupling agent is used to modify the zirconia nanoparticles, and the surface of the silica nanoparticles is modified with dopamine methacrylate, but there is no report on the use of dental restoration resins.

Method used

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  • Preparation method of surface functionalized zirconia nano particle for dental repair resin
  • Preparation method of surface functionalized zirconia nano particle for dental repair resin
  • Preparation method of surface functionalized zirconia nano particle for dental repair resin

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A method for preparing surface-functionalized zirconia nanoparticles that can be used for dental restorative resins, comprising the following steps:

[0020] 1) Preparation of dopamine methacrylate (DMA) {reaction of dopamine hydrochloride (DOPA) with methacrylic anhydride (MA) to introduce a double bond on DOPA that can chemically bond with dental restorative resin}: press methyl The mol ratio of acrylic anhydride and dopamine hydrochloride is 1.5: 1, choose methacrylic anhydride and dopamine hydrochloride;

[0021] Dissolving methacrylic anhydride in tetrahydrofuran to prepare a tetrahydrofuran solution with a concentration of 0.1 wt% of methacrylic anhydride;

[0022] Press dopamine hydrochloride and NaHCO 3 -Na 2 B 4 o 7 The proportion of the solution is 1mmol: 4ml, choose NaHCO with pH value of 8 3 -Na 2 B 4 o 7 Solution; Dopamine hydrochloride (DOPA) adopts N 2 After exhausting the air for 30 minutes, add NaHCO with a pH value of 8 3 -Na 2 B 4 o 7 sol...

Embodiment 2

[0031] A method for preparing surface-functionalized zirconia nanoparticles that can be used for dental restorative resins, comprising the following steps:

[0032] 1) Preparation of dopamine methacrylate (DMA) {reaction of dopamine hydrochloride (DOPA) with methacrylic anhydride (MA) to introduce a double bond on DOPA that can chemically bond with dental restorative resin}: press methyl The mol ratio of acrylic anhydride and dopamine hydrochloride is 1.9: 1, choose methacrylic anhydride and dopamine hydrochloride;

[0033] Dissolving methacrylic anhydride in tetrahydrofuran to prepare a tetrahydrofuran solution with a concentration of 0.14 wt% of methacrylic anhydride;

[0034] Press dopamine hydrochloride and NaHCO 3 -Na 2 B 4 o 7 The proportioning ratio of the solution is 1mmol: 8ml, choose NaHCO with a pH value of 8.5 3 -Na 2 B 4 o 7 Solution; Dopamine hydrochloride (DOPA) adopts N 2 After exhausting the air for 30 minutes, add NaHCO with a pH value of 8.5 3 -Na ...

Embodiment 3

[0043] A method for preparing surface-functionalized zirconia nanoparticles that can be used for dental restorative resins, comprising the following steps:

[0044] 1) Preparation of dopamine methacrylate (DMA) {reaction of dopamine hydrochloride (DOPA) with methacrylic anhydride (MA) to introduce a double bond on DOPA that can chemically bond with dental restorative resin}: press methyl The mol ratio of acrylic anhydride and dopamine hydrochloride is 2: 1, choose methacrylic anhydride and dopamine hydrochloride;

[0045] Dissolving methacrylic anhydride in tetrahydrofuran to prepare a tetrahydrofuran solution with a concentration of 0.15 wt% of methacrylic anhydride;

[0046] Press dopamine hydrochloride and NaHCO 3 -Na 2 B 4 o 7 The proportioning ratio of the solution is 1mmol: 12ml, choose NaHCO with a pH value of 9 3 -Na 2 B 4 o 7 Solution; Dopamine hydrochloride (DOPA) adopts N 2 After evacuating the air for 30 minutes, add NaHCO with a pH value of 9 3 -Na 2 B ...

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Abstract

The invention relates to a preparation method of a surface functionalized zirconia nano particle for a dental repair resin. The preparation method of the surface functionalized zirconia nano particle for the dental repair resin is characterized by comprising the following steps of: 1) preparation of dopamine methacrylate: reacting dopamine hydrochloride with methacrylic anhydride to introduce a double bond which can be chemically bonded with the dental repair resin on DOPA, so as to obtain grey DOPA methacrylate; and 2) preparation of a surface modified ZrO2 nano particle: introducing a double bond which can be tightly combined with the resin on the surface of the ZrO2 nano particle through the interaction of the DOPA component in DMA (dimethyl acetamide) and the ZrO2 nano particle to obtain the surface functionalized zirconia nano particle for the dental repair resin. When the surface functionalized zirconia nano particle is used for the dental repair resin, the obtained resin is high in bending strength. The preparation method disclosed by the invention is simple in process and low in production cost and has the effect of effectively improving a dental material.

Description

technical field [0001] The present invention relates to a kind of surface functionalization ZrO that can be used for dental restorative resin 2 The invention relates to a method for preparing nanoparticles, which belongs to the field of biomedical materials. Background technique [0002] Nano zirconium dioxide has good chemical stability, high temperature conductivity, high strength and toughness, small particle size, strong stability, chemical inertness, corrosion resistance, high temperature resistance, wear resistance, good dispersion, and wide Widely used in various ceramics, coatings, optical communication devices, and refractory materials. Zirconium dioxide is a material with good biological adaptability. It has no irritation and no allergic reaction to the gums, and avoids adverse reactions such as allergies, irritation, and corrosion in the oral cavity. Zirconium dioxide exists as a monoclinic phase at room temperature. Compared with the metastable tetragonal phase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G25/02B82Y30/00B82Y40/00A61K6/02A61K6/08A61K6/884
Inventor 黄进吴渺章非敏任红轩余家会
Owner WUHAN UNIV OF TECH
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