Zirconia ceramic paste and preparation method thereof

A technology of zirconia ceramics and zirconia powder, which is applied in the direction of additive processing, etc., can solve the problems of affecting the printing effect of sinking printing equipment, affecting the quality of printing products, and the precision forming of printing equipment, so as to achieve good printing stability and storage Stability, high printing fineness, and the effect of improving thixotropy

Pending Publication Date: 2021-05-07
DONGGUAN UNIV OF TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the zirconia ceramic resin materials reported in the literature are slurry materials with good fluidity, and the solid content is mostly lower than 50vol.%. Dispersion in the resin material makes the existing ceramic slurry still have the disadvantages of easy delamination and long-term storage, and the thixotropy of the existing ceramic slurry is not good, which affects the printing effect on the sinking printing device, and finally Affect the quality of printed products

Method used

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  • Zirconia ceramic paste and preparation method thereof
  • Zirconia ceramic paste and preparation method thereof
  • Zirconia ceramic paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A preparation method of zirconia ceramic paste, the steps comprising:

[0039] (1) Mix and stir 1000g zirconia powder (D50=100nm), 35g BYK-145 and 600g ethanol evenly, put it into a ball mill jar and mill it at 200rpm for 3h, first pass through a 150-mesh sieve, and then blast at 60°C Dry at constant temperature in a drying oven for 12 hours, and after drying, use a pulverizer to pulverize to obtain a mixed powder;

[0040] (2) 62.5g 1,6-hexanediol diacrylate, 62.5g trimethylolpropane triacrylate, 1.25g phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide and The mixed powder was added to a planetary mixer and stirred at a speed of 50rpm for 12h to obtain a zirconia ceramic paste;

[0041] (3) Add 9 g of BYK-410 to the zirconia ceramic paste under stirring at a speed of 70 rpm and stir for 2 hours, and grind and refine it with a three-roll mill with a 1 μm roll pitch to obtain a zirconia ceramic paste;

[0042] The volume percentage of the zirconia powder in the zirconia ...

Embodiment 2

[0044]A preparation method of zirconia ceramic paste, the steps comprising:

[0045] (1) Mix 700g of zirconia powder (D50=100nm), 300g of zirconia powder (D50=1000nm), 30g of BYK-180 and 600g of ethanol, mix and stir evenly, put them into a ball mill jar and mill at 100rpm for 8 hours, and first pass through 100 mesh Sieve through a sieve, then dry at a constant temperature in a blast drying oven at 60°C for 8 hours, and then pulverize with a pulverizer to obtain a mixed powder;

[0046] (2) Mix 85.5g 1,6-hexanediol diacrylate, 40.5g difunctional aliphatic urethane acrylate, 0.75g phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 0.5 g 1-Hydroxycyclohexyl phenyl ketone and the mixed powder were added to a homodisperser and stirred at a speed of 120rpm for 10h to obtain a zirconia ceramic paste;

[0047] (3) Add 8 g of BYK-420 to the zirconia ceramic paste under stirring at a speed of 100 rpm and stir for 3 hours, and grind and refine the zirconia ceramic paste by a three-roll...

Embodiment 3

[0050] A preparation method of zirconia ceramic paste, the steps comprising:

[0051] (1) Mix 600g of zirconia powder (D50=200nm), 400g of zirconia powder (D50=500nm), 8g of BYK-W940, 8g of BYK-180 and 600g of ethanol and mix them evenly, put them into a ball mill jar and mill at 400rpm for 15h , first sieved through a 200-mesh sieve, and then dried at a constant temperature in a blast drying oven at 60°C for 10 hours, and then crushed with a pulverizer to obtain a mixed powder;

[0052] (2) Mix 75g hydroxyethyl methacrylate, 40g tetrafunctional aliphatic urethane acrylate, 0.6g 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, 0.6g 1-hydroxycyclohexylbenzene Add methyl ketone and mixed powder into a planetary mixer and stir at 70rpm for 10h to obtain a zirconia ceramic paste;

[0053] (3) Add 10 g of BYK-405 to the zirconia ceramic paste under stirring at a speed of 140 rpm and stir for 4 hours, and grind and refine the zirconia ceramic paste by a three-roll mill with a 3 μm r...

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Abstract

The invention discloses a preparation method of zirconium oxide ceramic paste and the zirconium oxide ceramic paste thereof. The preparation method of the zirconium oxide ceramic paste comprises the following steps: (1) uniformly mixing and stirring zirconium oxide powder, a macromolecular dispersant and ethanol, and then performing ball-milling, sieving, drying and crushing to obtain mixed powder; (2) mixing and stirring the mixed powder, photosensitive resin and a photoinitiator to obtain zirconia ceramic paste; (3) adding a thixotropic agent into the zirconia ceramic paste in a stirring state, and performing grinding and refining to obtain zirconia ceramic paste, wherein the volume percent of the zirconia powder in the zirconia ceramic paste is 50-70%, and the zirconia ceramic paste prepared by the method has high solid content, high thixotropic property and relatively high stability.

Description

technical field [0001] The invention relates to the technical field of zirconia ceramic materials, in particular to a preparation method of zirconia ceramic paste and the zirconia ceramic paste. Background technique [0002] The inherent brittleness and hardness of zirconia ceramic materials make it impossible to perform efficient material reduction and material reduction processing like metals, which limits the preparation of complex shapes and structures. Zirconia ceramic additive manufacturing technology has the advantages of fewer processes, fast speed, free forming of special-shaped parts, and high precision. It is especially suitable for occasions that require various shapes, fast manufacturing, and small batch production. In recent years, zirconia ceramic additive manufacturing technology has been increasingly used in the research and development of complex structural parts, such as special-shaped electrolytes for solid fuel cells. [0003] Zirconia ceramic stereolit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622B33Y70/10
CPCC04B35/48C04B35/622B33Y70/10
Inventor 李开武陈盛贵李楠叶泽荣黄坤
Owner DONGGUAN UNIV OF TECH
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