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
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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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