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Glass ceramic material and preparation method thereof

A technology of glass ceramics and powder, which is applied in the field of new glass ceramics and its preparation, can solve the problem of less dental restoration materials, achieve the effects of no cytotoxicity, improved mechanical properties, and good proliferation

Pending Publication Date: 2021-06-25
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Dental restoration materials are receiving more and more attention in today's society. At present, most of the oral restoration materials in clinical application are mainly resin and ceramics, while glass ceramic dental restoration materials are less

Method used

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  • Glass ceramic material and preparation method thereof
  • Glass ceramic material and preparation method thereof
  • Glass ceramic material and preparation method thereof

Examples

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Embodiment 1

[0023] A glass-ceramic material reinforced by hydroxyapatite whiskers modified on the surface of nano-silicon oxide, including a base phase, a reinforcement phase, and a bonding phase, and the base phase is SiO 2 -Na 2 O-K 2 O-CaO-P 2 o 5 -Li 2 O-B 2 o 3 -SnO 2 It is a glass ceramic powder, the reinforcing phase is hydroxyapatite whisker modified on the surface of nano silicon oxide, and the bonding phase is silica gel. The specific steps of its preparation method are as follows:

[0024] (1) According to the method of Example 1 in the patent: a preparation method of modified hydroxyapatite whiskers (CN108560057A), the hydroxyapatite whiskers modified by nano-silica surface are prepared;

[0025] (2) SiO 2 -Na 2 O-K 2 O-CaO-P 2 o 5 -Li 2 O-B 2 o 3 -SnO 2 Preparation of glass-ceramic powder: Mix ethyl orthosilicate, water, concentrated nitric acid with a mass fraction of 65%, and ethanol at a volume ratio of 0.5:3:0.4:0.2, and stir for 30 minutes to obtain a sol...

Embodiment 2

[0030] A glass-ceramic material reinforced by hydroxyapatite whiskers modified on the surface of nano-silicon oxide, including a base phase, a reinforcement phase, and a bonding phase, and the base phase is SiO 2 -Na 2 O-K 2 O-CaO-P 2 o 5 -Li 2 O-B 2 o 3 -SnO 2 It is a glass ceramic powder, the reinforcing phase is hydroxyapatite whisker modified on the surface of nano silicon oxide, and the bonding phase is silica gel. The specific steps of its preparation method are as follows:

[0031] (1) According to the method of Example 1 in the patent: a preparation method of modified hydroxyapatite whiskers (CN108560057A), the hydroxyapatite whiskers modified by nano-silica surface are prepared;

[0032] (2) SiO 2 -Na 2 O-K 2 O-CaO-P 2 o 5 -Li 2 O-B 2 o 3 -SnO 2 Preparation of glass-ceramic powder: Mix ethyl orthosilicate, water, concentrated nitric acid with a mass fraction of 68wt%, and ethanol at a volume ratio of 1:4:0.5:0.2, and stir for 30 minutes to obtain a sol...

Embodiment 3

[0036] A glass-ceramic material reinforced by hydroxyapatite whiskers modified on the surface of nano-silicon oxide, including a base phase, a reinforcement phase, and a bonding phase, and the base phase is SiO 2 -Na 2 O-K 2 O-CaO-P 2 o 5 -Li 2 O-B 2 o 3 -SnO 2 It is a glass ceramic powder, the reinforcing phase is hydroxyapatite whisker modified on the surface of nano silicon oxide, and the bonding phase is silica gel. The specific steps of its preparation method are as follows:

[0037] (1) According to the method of Example 1 in the patent: a preparation method of modified hydroxyapatite whiskers (CN108560057A), the hydroxyapatite whiskers modified by nano-silica surface are prepared;

[0038] (2) SiO 2 -Na 2 O-K 2 O-CaO-P 2 o 5 -Li 2 O-B 2 o 3 -SnO 2 Preparation of glass-ceramic powder: Mix ethyl orthosilicate, water, concentrated nitric acid with a mass fraction of 66%, and ethanol in a volume ratio of 1.1:4:0.6:0.3, and stir for 40 minutes to obtain a sol...

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Abstract

The invention discloses a glass ceramic material and a preparation method thereof, wherein the glass ceramic material comprises a substrate phase, a reinforcing phase and a bonding phase; the substrate phase is SiO2-Na2O-K2O-CaO-P2O5-Li2O-B2O3-SnO2 series glass ceramic powder, the reinforcing phase is nano silicon oxide surface modified hydroxyapatite whisker, and the bonding phase is silica gel; and the glass ceramic powder, the nano silicon oxide surface modified hydroxyapatite whisker and silica gel are uniformly stirred according to a ratio, and the mixture is tabletted and sintered to obtain the glass ceramic dental material. The biological glass ceramic powder is prepared by using a sol-gel method, and the effects of saving energy and reducing consumption are achieved; meanwhile, the material is glass ceramic with apatite forming ability, the apatite deposition time can be shortened to 3 days, and the modified glass ceramic is free of cytotoxicity, good in cell adhesion and proliferation, and shows wide prospects in future medical clinical application of the dental department and the plastic surgery department.

Description

technical field [0001] The invention belongs to the field of biomedical glass ceramics, in particular to a novel glass ceramic with good mechanical properties and excellent biomineralization ability and a preparation method thereof. Background technique [0002] At present, people's pursuit of a better life is getting higher and higher, and filling materials for dental restoration and orthopedic surgery are becoming more and more popular among patients. Oral restorative materials are getting more and more attention in today's society. At present, most of the oral restorative materials in clinical application are mainly resin and ceramics, while the dental restorative materials of glass ceramics are less. Glass ceramics, discovered by D.R. Stookey of Corning Corporation in the United States in 1953, are polycrystalline materials produced by controlled heat treatment of certain glasses containing one or more crystalline phases embedded in a residual glass matrix. Glass cerami...

Claims

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Application Information

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IPC IPC(8): C03C10/04C03C3/097C03B19/06
CPCC03C10/0009C03C3/097C03B19/06
Inventor 陈庆华黄庆颜廷亭刘金坤
Owner KUNMING UNIV OF SCI & TECH
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