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3D printed high-transparency zirconia ceramic crown material

A zirconia ceramic, 3D printing technology, applied in the field of 3D printing, can solve the problems of poor product quality stability, high elongation at break, easy fragility, etc., to improve quality stability, moderate elongation at break, good antibacterial function Effect

Inactive Publication Date: 2020-03-27
嘉兴饶稷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1. The yield strength of products obtained by 3D printing process is low, the elongation at break is large or fragile, and the service life is short;
[0013] 2. Poor transparency, not wear-resistant, poor user experience and short service life;
[0014] 3. The process is complicated, the conditions are harsh, the molding speed is limited, and the dimensional accuracy is low when molding products with complex shapes;
[0015] 4. The quality of the products obtained by the 3D printing process is relatively poor, and defective products are prone to appear

Method used

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  • 3D printed high-transparency zirconia ceramic crown material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A 3D printing high-transparency zirconia ceramic dental crown material is made of raw materials including the following parts by weight:

[0066] Zirconia 170~195 parts,

[0067] Ethylene-vinyl acetate copolymer 240-270 parts,

[0068] 160-175 parts of hexanediol diacrylate,

[0069] Carboxyl silica microspheres 30-37 parts,

[0070] 10-14 parts of nano-titanium dioxide,

[0071] Aluminum oxide fiber 15-20 parts,

[0072] Edge graphene oxide 9-12 parts,

[0073] Photoinitiator 1.2~1.5 parts,

[0074] Dispersant 5-7 parts.

[0075] Preferably, the 3D printed high-transparency zirconia ceramic dental crown material is made of raw materials including the following parts by weight:

[0076] Zirconia 183 parts,

[0077] Ethylene-vinyl acetate copolymer 255 parts,

[0078] 168 parts of hexanediol diacrylate,

[0079] Carboxyl silica microspheres 34 parts,

[0080] Nano titanium dioxide 12 parts,

[0081] Aluminum oxide fiber 17 parts,

[0082] Edge graphene oxide...

Embodiment 2

[0094] A 3D printing high-transparency zirconia ceramic dental crown material is made of raw materials including the following parts by weight:

[0095] Zirconia 170 parts,

[0096] Ethylene-vinyl acetate copolymer 240 parts,

[0097] 160 parts of hexanediol diacrylate,

[0098] Carboxyl silica microspheres 30 parts,

[0099] Nano titanium dioxide 10 parts,

[0100] Aluminum oxide fiber 15 parts,

[0101] Edge graphene oxide 9 parts,

[0102] 1.2 parts of photoinitiator,

[0103] Dispersant 5 parts.

[0104] In this embodiment, the particle size of the carboxyl silica microspheres is 150-250 nm.

[0105] In this embodiment, the relative content of carboxyl groups in the edge graphene oxide is 32.5%.

[0106] In this embodiment, the ethylene-vinyl acetate copolymer is a transparent ethylene-vinyl acetate copolymer with a VA content of 25, a transparent ethylene-vinyl acetate copolymer with a VA content of 32, and a transparent ethylene-vinyl acetate copolymer with a VA co...

Embodiment 3

[0117] A 3D printing high-transparency zirconia ceramic dental crown material is made of raw materials including the following parts by weight:

[0118] Zirconia 195 parts,

[0119] Ethylene-vinyl acetate copolymer 270 parts,

[0120] 175 parts of hexanediol diacrylate,

[0121] Carboxyl silica microspheres 37 parts,

[0122] Nano titanium dioxide 14 parts,

[0123] 20 parts of alumina fiber,

[0124] Edge graphene oxide 12 parts,

[0125] 1.5 parts of photoinitiator,

[0126] Dispersant 7 parts.

[0127] In this embodiment, the particle size of the carboxyl silica microspheres is 220-300 nm.

[0128] In this embodiment, the relative content of carboxyl groups in the edge graphene oxide is 37.5%.

[0129] In this embodiment, the ethylene-vinyl acetate copolymer is a transparent ethylene-vinyl acetate copolymer with a VA content of 25, a transparent ethylene-vinyl acetate copolymer with a VA content of 32, and a transparent ethylene-vinyl acetate copolymer with a VA con...

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Abstract

The invention discloses a 3D printed high-transparency zirconia ceramic crown material. The 3D printed high-transparency zirconia ceramic crown material is prepared from the following raw materials inparts by weight: 170-195 parts of zirconia, 240-270 parts of ethylene-vinyl acetate copolymers, 160-175 parts of hexanediol diacrylate, 30-37 parts of carboxy silica microspheres, 10-14 parts of nanotitanium dioxide, 15-20 parts of alumina fibers, 9-12 parts of edge-oxidized graphene, 1.2-1.5 parts of a photoinitiator, and 5-7 parts of a disperser. The 3D printed high-transparency zirconia ceramic crown (material) disclosed by the invention is high in yield strength, appropriate in elongation at break (close to alloy ceramic crown materials), excellent in mechanical property and long in service life, and has good bacterium resisting functions; and moreover, the 3D printed high-transparency zirconia ceramic crown (material) has the advantages of being non-toxic, good in wear resistance and the like.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a 3D printing high-transparency zirconia ceramic dental crown material. Background technique [0002] As one of the important development trends of ceramic 3D printing technology in the future, ceramic SLA (Stereo Lithography Appearance) 3D printing technology based on the principle of stereolithography has the advantages of high molding quality, large size range of prepared parts, and close to ideal density. [0003] SLA molding technology uses photosensitive resin as raw material, controls the laser through computer, and scans point by point on the surface of liquid photosensitive resin according to the layered section information of the air dimension CAD model of the part, and the thin layer of resin in the scanned area produces photopolymerization reaction And assimilation, forming l thin layers of parts. After the assimilation of the first layer is completed, the workbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/887A61K6/76A61K6/71A61K6/831A61K6/15
Inventor 赵喆姜焱林
Owner 嘉兴饶稷科技有限公司
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