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Composite preparation method of submillimeter zirconia ceramic microbeads

A zirconia ceramic, submillimeter-level technology, applied in the field of ceramic materials, can solve the problems of substandard particle size and non-dense structure of zirconia ceramic microbeads, and achieve the effect of improving production efficiency

Pending Publication Date: 2021-03-09
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a composite preparation method of submillimeter-scale zirconia ceramic microbeads, which solves the problems in the prior art that the structure of zirconia ceramic microbeads is not dense and the particle size is not up to standard, and can realize the production of zirconia ceramic microbeads at the same time. Size controllable, improve preparation efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A composite preparation method of submillimeter zirconia ceramic microbeads, comprising the following steps:

[0031] Step 1: Dissolve 5g of acrylamide, 0.5g of N-N'-methylenebisacrylamide, and 1g of citric acid in 30g of deionized water, stir electrically to form a solution, and add ammonia water dropwise to adjust the pH of the solution to 8; % Yttrium-stabilized zirconia was added to the solution, and continued to stir for 1 h. After the dispersion was uniform, 0.5 g of isopropanol was added, and stirred for 1 h; Add it into the zirconia slurry, and stir for another 10 minutes to form a uniform and stable zirconia slurry.

[0032] Step 2: 0.5g of tetramethylethylenediamine was dropped into a beaker of 500ml of liquid paraffin, and the beaker was placed in an oil bath at 50°C. Put the zirconia slurry prepared in step 1 into the titration bottle, connect the hose with multiple pinholes to the titration bottle at the same time, and hang the titration bottle upside down...

Embodiment 2

[0036] A composite preparation method of submillimeter zirconia ceramic microbeads, comprising the following steps:

[0037] Step 1: Dissolve 8g of hydroxyethyl acrylate, 1g of cross-linking agent N-N'-methylenebisacrylamide, and 2g of dispersant polyacrylic acid in 50g of deionized water, stir electrically to form a solution, and add ammonia water dropwise to adjust the concentration of the solution The pH value is 10; add 70g of 8mol% yttrium-stabilized zirconia into the solution, and continue to stir for 1h. After the dispersion is uniform, add 1g of antifoaming agent isopropanol, and stir for 1h; Add 3g of curing agent into the zirconia slurry, and stir for 30 minutes to form a uniform and stable zirconia slurry.

[0038]Step 2: 1 g of the catalyst N,N-dimethylaniline was dropped into a beaker of 500 ml of liquid paraffin, and the beaker was placed in an oil bath at 55°C. Put the zirconia slurry prepared in step 1 into the titration bottle, connect the hose with multiple ...

Embodiment 3

[0042] A preparation method of submillimeter zirconia ceramic microspheres, comprising the following steps:

[0043] Step 1: Dissolve 5g of hydroxypropyl acrylate, 0.5g of cross-linking agent N-N'-methylenebisacrylamide, and 1g of dispersant oxalic acid in 50g of deionized water, stir electrically to form a solution, and add ammonia water dropwise to adjust The pH value of the solution is 10; add 30g of 3mol% yttrium-stabilized zirconia into the solution, continue stirring for 1h, and after the dispersion is uniform, add 0.5g of defoamer isopropanol, and stir for 1h; Add 1.5g of curing agent 819DW into the zirconia slurry, and stir for 30 minutes to form a uniform and stable zirconia slurry.

[0044] Step 2: 1 g of the catalyst N,N-dimethylaniline was dropped into a beaker of 500 ml of liquid paraffin, and the beaker was placed in an oil bath at 80°C. Put the zirconia slurry prepared in step 1 into the titration bottle, connect the hose with multiple pinholes to the titration...

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PUM

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Abstract

The invention discloses a composite preparation method of submillimeter zirconia ceramic microbeads, which belongs to the technical field of ceramic materials, and comprises the following steps: adding an initiator and a photocuring agent into a mixed solution of a propylene monomer, a crosslinking agent, a dispersing agent and yttria-stabilized zirconia to form zirconia slurry, injecting the zirconium oxide slurry into oil-bath liquid paraffin containing a catalyst, irradiating by adopting ultraviolet light to form zirconium oxide ceramic microbead green bodies, sintering the green bodies byadopting temperature programming, and carrying out self-polishing to form sub-millimeter zirconium oxide ceramic microbeads. According to the invention, a catalytic curing and UV curing composite molding technology is adopted, the size of the prepared zirconia ceramic microbead can reach a submillimeter level, and the zirconia ceramic microbead has high density and good wear resistance.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to a composite preparation method of submillimeter zirconia ceramic microbeads. Background technique [0002] With the development of industrialization, high-performance grinding media are widely used in mining, inorganic materials, electric energy, chemical industry and other industries. It is estimated that the world consumes 5-6 million tons of grinding ball products every year, and the domestic consumption is also more than 2-2.5 million tons. In particular, ceramic microspheres with a particle size of submillimeter have a broad market space. This is not only because of the large specific surface area of ​​ceramic microspheres and high ball milling efficiency, but also because of the demand for ultra-fine grinding of raw materials for the upgrading of industrial products. In the grinding process of preparing ultra-fine powder, it is required that the powd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/634
CPCC04B35/48C04B35/63404C04B2235/77
Inventor 石纪军孙国梁孙良良
Owner JINGDEZHEN CERAMIC INSTITUTE
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