Zirconium dioxide nano powder material preparation method

A technology of nanopowder and zirconia, which is applied in nanostructure manufacturing, zirconia, nanotechnology, etc., can solve the problems of wide particle size range, serious agglomeration phenomenon, and inability to meet the needs of zirconia all-ceramic repair materials

Inactive Publication Date: 2006-02-15
ADVANCED TECHNOLOGY & MATERIALS CO LTD
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Problems solved by technology

[0003] In the existing technology, domestic and foreign manufacturers mainly use chemical co-precipitation and hydrothermal methods to produce zirconia nanopowder materials, but the products produced still cannot meet the needs of zirconia all-ceramic restoration materials.
As far as the basic problems of powder preparation are concerned, the above-mentioned chemical co-precipitation method and hydrothermal method still have the following shortcomings: irregular shape of powder particles, wide particle size range, serious agglomeration phenomenon, and low sintering activity
If the above-mentioned problems are not solved, the preparation technology of ultrafine zirconia nanopowder materials can only be repeated and hovered at a low level.

Method used

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  • Zirconium dioxide nano powder material preparation method

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Embodiment 1

[0039] Get 300ml of organic solvent n-heptane, add 1.2g of oil-soluble surfactant Span in this organic solvent, make organic matter solution, and be divided into two parts, add 2ml concentration in a part and be the zirconium salt ZrO of 0.75mol / L (Ac) 2 solution, and 5 ml of ammonia solution with a concentration of 10 mol / L was added to the other part to prepare two solutions. Each of the two solutions was subjected to high-speed shear emulsification and dispersion for 10 minutes, then the two solutions were mixed, and ultrasonic dispersion was carried out at room temperature for 30 minutes at a frequency of 90 KHz. The obtained product was distilled on a distillation machine, the distillation temperature was 115°C, and the distillation time was 3h; after distillation, the product was mixed with the two solutions, and ultrasonically dispersed at room temperature for 35min at a frequency of 150KHz. The obtained product was distilled on a distillation machine, the distillation...

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Abstract

The invention relates to preparation for teeth material and nano zirconia powder material, which comprises: preparing zircon salt solution, ammonia and organic solution to prepare monodispersed ball nano powder, mixing, emulsifying, dispersing with ultrasonic wave, distilling, clearing, and calcining; using water/oil-soluble surfactant or organic solvent to encircle the microemulsion droplet as nano micro reaction system. This nano zirconia powder has particle size less 100nm and unimodal distribution.

Description

technical field [0001] The invention belongs to the field of biological materials and relates to the preparation of dental materials and nanometer powder materials. Background technique [0002] In the field of biomaterials, the current various biomaterials, including metals and their alloy materials, organic polymer materials, although they all have certain strength, hardness, toughness, wear resistance, biocompatibility and aesthetics, in a certain To a certain extent, it meets the performance requirements of biomaterials, and some have entered the experimental stage of clinical application. But all have obvious deficiencies, such as low strength and poor wear resistance of polymer materials, the color of metal and its alloys is difficult to meet the aesthetic requirements, metal fusion-bonded ceramic materials lack overall light transmission, and the base gray is difficult to remove. As a dental material, it has special performance requirements. It not only requires appr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G25/02B82B3/00
Inventor 梁新杰仇越秀周少雄李德慧李晓天高振英张娓宋文娟孟浩
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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