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Preparation method of green anti-static zirconia ceramic

A zirconia ceramic and anti-static technology, which is applied in the field of preparation of green anti-static zirconia ceramics, can solve the problems that anti-static ceramic tiles are not easy to delaminate, the anti-static performance is unstable, and the amount of conductive powder added is large, and the improvement is achieved. Process stability, easy operation, less variety of effects

Inactive Publication Date: 2016-11-16
郭舒洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problems mainly solved by the present invention: Aiming at the current problems of unstable antistatic performance of antistatic ceramic tiles, easy delamination during pressing, many product defects after firing, large amount of required conductive powder, and high cost, etc., a new method is provided. A method for preparing green antistatic zirconia ceramics; the method prepares yttria-stabilized zirconia ultrafine powder, mixes it with fly ash treated for impurity removal and refinement, adds graphene, and ball mills in a planetary ball mill to make Graphene is fully dispersed in the slurry, the composite powder is prepared, put into a mold and pressed into a green body, and a conductive glaze is prepared by replacing part of the tin oxide with vanadium pentoxide and zinc oxide. Sintering technology makes ceramics sintered and dense, and forms a modified layer on the surface of zirconia ceramics by high-temperature carburizing method to produce green anti-static zirconia ceramics; this method has strong operability, because less chemical raw materials and additives are used in the production process , the amount of conductive materials used is small, which greatly improves the process stability of anti-static ceramic tiles, making it difficult for anti-static ceramic tiles to delaminate during the pressing process. This method saves manufacturing costs while improving efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018]Weigh 120g of zirconium hydroxide and 4.0g of yttrium oxide powder respectively, add 800mL of deionized water, stir and heat at 300r / min to 55°C, add 2.0g of polyethylene glycol, continue stirring for 20min, treat with 400W microwave for 20min, and continue heating When the mixed solution boils, keep the temperature for 30 hours, filter to obtain the filter residue, wash the filter residue with water for 3 times, dry it in an oven at 120°C, place it in a muffle furnace, and calcinate it at 600°C for 3 hours to obtain yttria-stabilized zirconia Ultrafine powder, for later use; weigh 50g of fly ash particles, put them into a pulverizer to crush them, pass through a 200-mesh sieve, add 200mL of deionized water to the sieved fly ash after removing iron by a magnetic field, and use 400r / min Stir for 30 minutes, let it stand for 1 hour, remove the carbon impurities suspended in the upper part, filter, put the filter residue in a drying oven at 110°C and dry to constant weight, ...

example 2

[0021] Weigh 135g of zirconium hydroxide and 4.4g of yttrium oxide powder, add 900mL of deionized water, stir and heat at 350r / min to 57.5°C, add 2.6g of polyethylene glycol, continue stirring for 25min, treat with 400W microwave for 25min, and continue heating When the mixed solution boils, keep the temperature for 35 hours, filter to obtain the filter residue, wash the filter residue with water for 4 times, dry it in an oven at 135°C, place it in a muffle furnace, and calcinate it at 700°C for 4 hours to obtain yttria-stabilized zirconia Ultra-fine powder, for later use; weigh 55g of fly ash particles, put them into a pulverizer and crush them, pass through a 200-mesh sieve, add 250mL of deionized water to the sieved fly ash after removing iron by a magnetic field, and use 450r / min Stir for 35 minutes, let it stand for 1.5 hours, remove the carbon impurities suspended in the upper part, filter, put the filter residue in a 115°C drying oven and dry to constant weight, cool to ...

example 3

[0025] Weigh 150g of zirconium hydroxide and 4.8g of yttrium oxide powder, add 1000mL of deionized water, stir and heat at 400r / min to 60°C, add 3.2g of polyethylene glycol, continue stirring for 30min, treat with 400W microwave for 30min, and continue heating When the mixed liquid boils, keep the temperature for 40 hours, filter to obtain the filter residue, wash the filter residue with water for 5 times, dry it in an oven at 150°C, place it in a muffle furnace, and calcinate it at 800°C for 5 hours to obtain yttria-stabilized zirconia Ultra-fine powder, for later use; weigh 60g of fly ash particles, put them into a pulverizer to pulverize, and pass through a 200-mesh sieve. After the sieved fly ash is removed by a magnetic field, add 300mL of deionized water, and use 500r / min Stir for 40 minutes, let it stand for 2 hours, remove the carbon impurities suspended in the upper part, filter, put the filter residue in a 120°C drying oven and dry to constant weight, cool to obtain f...

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PUM

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Abstract

The invention discloses a preparation method of green anti-static zirconia ceramic, and belongs to the technical field of ceramic preparation. The preparation method comprises the following steps: heating and filtering zirconium hydroxide, yttrium oxide powder and polyethylene glycol, calcining filter residues to obtain zirconia ultrafine powder for later use, meanwhile, crushing and filtering fly ash particles and removing impurities to obtain fly ash for later use, then carrying out ball milling on graphene, an ethanol solution, the zirconia ultrafine powder, the fly ash, zirconia grinding balls and anhydrous ethanol to obtain pulp, collecting obtained composite powder to be prepared into ceramic blanks, and coating glazes obtained by carrying out the ball milling on the oxide, the anhydrous ethanol and the zirconia grinding balls on the ceramic blanks, sintering, soaking, and cleaning to remove impurities and drying, so as to obtain the green anti-static zirconia ceramic. Examples show that the preparation method of the green anti-static zirconia ceramic has strong operability, uses less additives and conductive materials in the preparation process and improves the process stability, so that anti-static ceramic tiles are not easily layered in the pressing process, and the method further saves the manufacturing cost while improving the efficiency.

Description

technical field [0001] The invention discloses a method for preparing green antistatic zirconia ceramics, which belongs to the technical field of ceramic preparation. Background technique [0002] As a common physical phenomenon, static electricity has been accompanied by the rapid development of integrated circuits and the wide application of polymer materials in the past ten years. The harm caused by the force, discharge and induction of static electricity is very serious. The United States statistics, the United States electronics industry department The annual loss due to electrostatic hazards is as high as 10 billion US dollars. The annual loss of British electronic products due to static electricity is 2 billion pounds. No less than 45% of the unqualified products of Japanese electronic components are caused by electrostatic discharge (ESD). . The seriousness of the problem also lies in the fact that many people have insufficient knowledge of electrostatic hazards and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/64C03C8/14
CPCC04B35/48C03C8/14C04B35/64C04B2235/3246C04B2235/425C04B2235/666
Inventor 郭舒洋王龙薛蕾
Owner 郭舒洋