Preparation method of high-solid low-viscosity photocuring ceramic slurry: Fid-Bau Portal

Preparation method of high-solid low-viscosity photocuring ceramic slurry

JIANG ZHAOLIANG / XU JING / GONG LICHAO / DAI HUAWEN

The invention discloses a preparation method of high-solid low-viscosity photocuring ceramic slurry, which comprises the following steps of: preparing mixed ceramic powder from large, medium and small ceramic grain grades according to a proportion, then dissolving the mixed ceramic powder in absolute ethyl alcohol, adding a modifier to form a first suspension, premixing the first suspension, and carrying out vacuum drying to obtain the high-solid low-viscosity photocuring ceramic slurry. Carrying out ball milling treatment on the premixed solution, carrying out solid-liquid separation on the ball-milled solution, and drying the separated solid to obtain modified mixed powder; preliminarily mixing the modified mixed powder with the premixed resin solution, and then carrying out ball milling treatment on the preliminarily mixed solution; defoaming and uniformly mixing the ball-milled solution to obtain photo-cured ceramic slurry; according to the preparation method, gaps among particles can be better filled by controlling grain composition, the viscosity and the stability of the slurry are adjusted, the viscosity is reduced by properly adjusting the temperature, and the high-solid low-viscosity photocuring ceramic slurry is obtained.

本发明公开了一种高固低粘的光固化陶瓷浆料的制备方法，包括以下步骤：将大、中、小三级陶瓷颗粒级按照配比获得混合陶瓷粉体，然后将混合陶瓷粉末溶于无水乙醇中，加入改性剂，形成第一悬浮液，将第一悬浮液进行预混合，然后对预混合溶液中进行球磨处理，球磨后的溶液进行固液分离，分离后的固体进行干燥处理，得到改性混合粉末；将改性混合粉末与预混合树脂溶液进行初步混合，然后对初步混合溶液进行球磨处理；球磨后的溶液进行脱泡混合均匀，得到光固化的陶瓷浆料；本发明为通过控制颗粒级配可以使颗粒之间的空隙得到更好的填充，实现对浆料的粘度和稳定性进行调节，通过适当的调节温度实现粘度的降低，获得高固低粘的光固化陶瓷浆料。

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