A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of ceramic 3D printing, in particular to ceramic slurry for direct writing forming and a forming method thereof, and the ceramic slurry comprises nano ceramic powder, a dispersing agent, a sintering aid and a solvent. Wherein the ceramic powder is zirconium oxide or aluminum oxide with the particle size of 30 nm, the dispersing agent is ammonium polymethacrylate (PMAA-NH4), and the solvent is a solution of deionized water and glycerol with the ratio of 1: 1. The preparation method comprises the following steps: uniformly mixing and stirring a solvent and 1.5 wt% of a dispersing agent, adding 40 wt% of ceramic powder, uniformly stirring, and ball-milling for 8-12 hours; after the ball milling is finished, taking out, gradually adding powder for several times while stirring, improving the mass fraction and the viscosity, and finally obtaining about 65wt% of ceramic slurry. The invention further discloses a 3D printing forming method of the ceramic slurry. The prepared high-mass-fraction ceramic slurry is good in stability, easy to manufacture, capable of being stored for more than several months in a sealed state, excellent in printing performance and capable of greatly improving the forming quality due to the high mass fraction.
本发明涉及陶瓷3D打印技术领域，具体涉及一种用于直写成型的陶瓷浆料及其成型方法，陶瓷浆料包括纳米陶瓷粉体、分散剂、助烧剂、溶剂。其中陶瓷粉体为粒径为30nm的氧化锆或氧化铝，分散剂为聚甲基丙烯酸铵(PMAA‑NH4)，溶剂为1：1的去离子水和丙三醇溶液。步骤：先将溶剂和1.5wt％分散剂混合搅拌均匀之后，加入40wt％的陶瓷粉体搅拌均匀后球磨8～12h。球磨完成后取出分次逐步边加入粉体边搅拌，提高质量分数和粘度，最终可以得到65wt％左右的陶瓷浆料。本发明还公开其陶瓷浆料的3D打印成型方法。本发明制备的高质量分数的陶瓷浆料稳定性良好，制作简易，密封状态下可以存放数月以上，打印性能优异，且拥有的高质量分数可以大大提高成型的质量。
The invention relates to the technical field of ceramic 3D printing, in particular to ceramic slurry for direct writing forming and a forming method thereof, and the ceramic slurry comprises nano ceramic powder, a dispersing agent, a sintering aid and a solvent. Wherein the ceramic powder is zirconium oxide or aluminum oxide with the particle size of 30 nm, the dispersing agent is ammonium polymethacrylate (PMAA-NH4), and the solvent is a solution of deionized water and glycerol with the ratio of 1: 1. The preparation method comprises the following steps: uniformly mixing and stirring a solvent and 1.5 wt% of a dispersing agent, adding 40 wt% of ceramic powder, uniformly stirring, and ball-milling for 8-12 hours; after the ball milling is finished, taking out, gradually adding powder for several times while stirring, improving the mass fraction and the viscosity, and finally obtaining about 65wt% of ceramic slurry. The invention further discloses a 3D printing forming method of the ceramic slurry. The prepared high-mass-fraction ceramic slurry is good in stability, easy to manufacture, capable of being stored for more than several months in a sealed state, excellent in printing performance and capable of greatly improving the forming quality due to the high mass fraction.
本发明涉及陶瓷3D打印技术领域，具体涉及一种用于直写成型的陶瓷浆料及其成型方法，陶瓷浆料包括纳米陶瓷粉体、分散剂、助烧剂、溶剂。其中陶瓷粉体为粒径为30nm的氧化锆或氧化铝，分散剂为聚甲基丙烯酸铵(PMAA‑NH4)，溶剂为1：1的去离子水和丙三醇溶液。步骤：先将溶剂和1.5wt％分散剂混合搅拌均匀之后，加入40wt％的陶瓷粉体搅拌均匀后球磨8～12h。球磨完成后取出分次逐步边加入粉体边搅拌，提高质量分数和粘度，最终可以得到65wt％左右的陶瓷浆料。本发明还公开其陶瓷浆料的3D打印成型方法。本发明制备的高质量分数的陶瓷浆料稳定性良好，制作简易，密封状态下可以存放数月以上，打印性能优异，且拥有的高质量分数可以大大提高成型的质量。
Ceramic slurry for direct writing forming and forming method
一种用于直写成型的陶瓷浆料及成型方法
2021-10-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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