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Ceramic polymer composite material and preparation method thereof

A technology of polymer materials and composite materials, applied in the field of ceramic polymer composite materials and their preparation, can solve the problems of insufficient mechanical properties, high processing difficulty, and restrictions on the application of ceramic matrix composite materials, etc., to achieve increased mechanical properties, high Hardness, effect of increasing distance

Active Publication Date: 2022-07-22
SHENZHEN TAOTAO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing ceramic matrix composites in the domestic market are generally difficult to process, and the mechanical properties are not up to the use range of original teeth, which severely limits the application of ceramic matrix composites in modern medical chairside restorations.

Method used

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  • Ceramic polymer composite material and preparation method thereof
  • Ceramic polymer composite material and preparation method thereof
  • Ceramic polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this example, zirconia ceramic powder is used as the ceramic powder. 61 parts of zirconia powder, 0.305 parts of Solo920, 1.22 parts of polyvinyl alcohol and 1.22 parts of polyacrylic acid are uniformly dispersed into 90 parts of deionized zirconia through 24h ball milling. A slurry with a volume fraction of 10% was obtained in water.

[0041] Pour the slurry into a bidirectional freezing casting mold with a freezing angle of 10° for bidirectional freezing casting. After the slurry is completely solidified, low-pressure freeze drying is performed to fully sublime the frozen ice crystals, thereby obtaining zirconia with a volume fraction of about 9%. Layered green embryos; wherein, during the low-pressure freeze-drying treatment, the pressure is set to 1 Pa, the treatment is performed at a temperature of -55°C for 24 hours, and the temperature of the sample heating plate is 40°C.

[0042] Preheat the raw embryo body to 80°C, then place it in liquid paraffin at the sam...

Embodiment 2

[0046] The difference between Example 2 and Example 1 is that dyeing treatment of the ceramic skeleton is also included. The dyeing treatment includes steps: placing the ceramic skeleton in a pre-configured dyeing solution, soaking for 30 s, drying at 80° C. for 2 hours, and then sintering at 1350° C. for 2 hours to obtain the dyed ceramic skeleton. The dyeing solution includes one or more of oxalic acid, acetic acid, iron nitrate, neodymium nitrate, erbium nitrate or cerium acetate.

Embodiment 3

[0048] Compared with Embodiment 1, the difference of this embodiment is that in this embodiment, alumina ceramic powder is selected as the ceramic powder.

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Abstract

The invention relates to a ceramic polymer composite material and a preparation method thereof. The composite material comprises the following components in percentage by volume: 18-85% of a ceramic skeleton and 15-82% of a polymer material, the ceramic skeleton comprises a layered structure, every two adjacent sheet layers in the layered structure form a bridging structure, and pores of the ceramic skeleton are filled with the high polymer material; the composite material is prepared by the following steps: mixing raw materials of a ceramic skeleton to obtain slurry, preparing the slurry into a green body with a stacked layered structure by adopting bidirectional freezing casting, placing the green body in a compression mold for volume compression, and sequentially performing degumming treatment and sintering treatment to obtain the ceramic skeleton, and the ceramic skeleton is infiltrated into liquid resin to obtain the composite material. The ceramic polymer composite material prepared by adopting the technical scheme provided by the invention has better mechanical properties and better light transmittance, and is more suitable for false tooth materials.

Description

technical field [0001] The invention relates to the technical field of dental materials and a preparation method thereof, in particular to a ceramic polymer composite material and a preparation method thereof. Background technique [0002] Dentures also play an important role in many medical treatments such as oral preventive health care and dental deformity correction. Dentures, as dental materials that need to be implanted in the oral cavity, need to have superior mechanical properties, good biocompatibility, easy processing, modeling and fabrication, stable physical and chemical properties, and a high degree of aesthetic similarity. Dentures used at this stage include metal alloy teeth, porcelain teeth, all-ceramic teeth and dentures made of ceramic matrix composite materials. Among them, metal alloys and porcelain teeth are easy to mislead the diagnosis of medical imaging due to the presence of metal; all-ceramic dental materials have problems of excessive hardness and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/42A61L27/50B28B1/00B28B11/00
CPCA61L27/427A61L27/50B28B1/007B28B11/00A61L2430/12
Inventor 万鸿博刘建国李毅
Owner SHENZHEN TAOTAO TECH CO LTD
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