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Zirconium oxide microspheres and preparation method thereof

A technology of zirconia microbeads and zirconia, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of poor quality and dimensional stability of zirconia microbeads, fragile beads, etc., to solve the risk of broken beads, size Consistent, simple process results

Inactive Publication Date: 2020-06-19
东莞市永笃纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a zirconia microbead and its preparation method in view of the above-mentioned deficiencies in the prior art, which solves the problems of poor quality and dimensional stability of the existing zirconia microbeads and easy broken beads, etc., and has the advantages of simple process , zero pollution, good dimensional stability of the product, etc., easy to sieve and stable in quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: The zirconia microbeads and its preparation method provided in this example, the zirconia microbeads are made of zirconia high-solid slurry and titration emulsion, which are heated and titrated, then settled and condensed into zirconia spheres, and then treated at low temperature Obtained after debinding and sintering, the mass ratio of the zirconia high-solid slurry to titrated emulsion is 4-6:4-6. Zirconia high solids slurry is made of the following components by weight: 80-100 parts of zirconia powder, 16-20 parts of deionized water, 1-3 parts of ammonium polyacrylate dispersant, 2 parts of acrylamide -3 parts, N, N-methylenebisacrylamide 0.2-0.4 parts; titrated emulsion is made of the following components in volume percentage: 60%-80% simethicone, 19%-39% propylene glycol, 1% Span 80; zirconia powder is made of the following components by weight: 100 parts of zirconia powder, 120-240 parts of deionized water, 2-4 parts of ammonium polyacrylate, 4-6 parts ...

Embodiment 2

[0027] Embodiment 2: The zirconia microbeads provided in this embodiment and the preparation method thereof are basically the same as in Embodiment 1, except that:

[0028] S1. Preparation of zirconia high-solid slurry: The total amount of ingredients is 100kg, using 80kg of zirconia powder, 16kg of deionized water, 2kg of ammonium polyacrylate dispersant, 1.8kg of acrylamide, and 0.2kg of NN-methylenebisacrylamide , mixed and placed in a roller mill for grinding at room temperature for 2 hours; the zirconia powder is made of the following components by weight: 100 parts of zirconia powder, 120 parts of deionized water, 2 parts Ammonium polyacrylate, 6 parts of cetyltrimethylammonium bromide, 8 parts of ethanol solution of silane coupling agent;

[0029] S2. Titration emulsion preparation: The titration emulsion is prepared according to the volume ratio of 60%% simethicone oil, 39% propylene glycol, and 1% Span 80, and mixed evenly; the mass ratio of the zirconia high-solid sl...

Embodiment 3

[0033] Example 3: The zirconia microspheres provided in this example and their preparation method are basically the same as those in Example 1 and Example 2, except that the zirconia microspheres are made of zirconia high-solids slurry and The titrated emulsion settles and coagulates into zirconia spheres after heating and titrating, and is obtained after low-temperature debinding and sintering. The mass ratio of the zirconia high-solid slurry to the titrated emulsion is 6:4. Zirconia high solids slurry is made of the following components by weight: 80 parts of zirconia powder, 20 parts of deionized water, 1 part of ammonium polyacrylate dispersant, 3 parts of acrylamide, N, N- 0.2 parts of methylenebisacrylamide; the titration emulsion is made of the following components in volume percentage: 80% simethicone, 19% propylene glycol, 1% Span 80; the zirconia powder is made of the following parts by weight Made of components: 100 parts of zirconia powder, 240 parts of deionized w...

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PUM

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Abstract

The invention discloses zirconium oxide microspheres and a preparation method thereof. The preparation method comprises the following steps: heating and titrating zirconium oxide high-solid slurry anda titrating emulsion, settling and condensing to form zirconium oxide spheres, and then, carrying out low-temperature glue discharging and sintering. The mass ratio of the zirconium oxide high-solidslurry to the titration emulsion is (4-6): 1, the zirconium oxide high-solid slurry is prepared from the following components in parts by weight: 80 to 100 parts of zirconium oxide powder, 16 to 20 parts of deionized water, 1 to 3 parts of an ammonium polyacrylate dispersing agent, 2 to 3 parts of acrylamide and 0.2 to 0.4 part of N' N-methylene bisacrylamide, the titrating emulsion is prepared from the following components in percentage by volume: 60%-80% of dimethyl silicone oil, 19-39% of propylene glycol and 1% of Span 80. According to the zirconium oxide microspheres and the preparation method thereof, the problems of poor quality and dimensional stability, easiness in bead breaking and the like of the existing zirconium oxide microspheres are solved, and the zirconium oxide microspheres have the advantages of simple process, zero pollution, good product dimensional stability and the like, and are easy to screen and stable in quality.

Description

technical field [0001] The invention relates to the technical field of inorganic materials, in particular to a zirconia microbead and a preparation method thereof. Background technique [0002] In recent years, with the development of the material industry and the advancement of sand mill technology, the requirements for ultra-fine grinding and nano-grinding of materials have become higher and higher for grinding media. Zirconia microbeads have outstanding properties such as high density, high strength, acid and alkali corrosion resistance, and extremely low self-abrasion, which makes zirconia microbeads stand out among various grinding media materials, greatly improving the grinding efficiency and The grinding fineness, its zero pollution avoids the processing pollution of the ground material, and the application prospect is very broad. [0003] However, the current processing and production of zirconia microbeads often adopts the rolling process, and the zirconia microbea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622C04B35/626C04B35/634C04B35/638C04B35/64C09K3/14
CPCC04B35/48C04B35/622C04B35/62695C04B35/63424C04B35/638C04B35/64C04B2235/656C04B2235/6567C04B2235/95C09K3/1409
Inventor 罗永义梅国鹏
Owner 东莞市永笃纳米科技有限公司
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