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DLP biological ceramic printing slurry
The invention discloses a DLP ceramic printing slurry. The slurry is characterized by comprising the following components in parts by weight: 50-75 wt% of calcium phosphate powder, 25-50 wt% of resin slurry and a photoinitiator which accounts for 2-3 wt% of the weight of the resin slurry. The biological ceramic slurry suitable for photocuring 3D printing is prepared by effectively controlling the proportions of the components; meanwhile, dispersing agents with different solid contents, reactive diluents with different viscosities and prepolymers with different viscosities are matched in the components of the resin slurry, and calcium phosphate powder is pre-sintered, so the solid content of the ceramic slurry can be 72 wt%, and the viscosity of the ceramic slurry can be 820 Pa.S when a shearing rate is 0.1 r/s; and a volume shrinkage rate is greatly reduced to 5% when the slurry is sintered into ceramic, so the problems of low solid content, high viscosity and large shrinkage rate of existing ceramic slurry are well solved.
本发明公开了一种DLP陶瓷打印浆料，其特征在于，包括如下重量份的组份：磷酸钙粉体50wt％～75wt％，树脂浆液25wt％～50wt％，以及占树脂浆液重量2wt％～3wt％的光引发剂。本发明通过对各组分配比的有效控制，制备得到适用于光固化3D打印的生物陶瓷浆料；同时，树脂浆液的组分中通过设置不同固含量的分散剂、不同粘度的活性稀释剂和不同粘度的预聚物相配合，通过对磷酸钙粉体预烧结处理，可使陶瓷浆料的固含量为72wt％，在剪切速率为0.1r/s，其黏度为820Pa·s，在最后烧结成陶瓷时体积收缩率大幅降低至5％，从而本发明很好的解决了现有陶瓷浆料固含量低，黏度高，收缩率大的问题。
DLP biological ceramic printing slurry
The invention discloses a DLP ceramic printing slurry. The slurry is characterized by comprising the following components in parts by weight: 50-75 wt% of calcium phosphate powder, 25-50 wt% of resin slurry and a photoinitiator which accounts for 2-3 wt% of the weight of the resin slurry. The biological ceramic slurry suitable for photocuring 3D printing is prepared by effectively controlling the proportions of the components; meanwhile, dispersing agents with different solid contents, reactive diluents with different viscosities and prepolymers with different viscosities are matched in the components of the resin slurry, and calcium phosphate powder is pre-sintered, so the solid content of the ceramic slurry can be 72 wt%, and the viscosity of the ceramic slurry can be 820 Pa.S when a shearing rate is 0.1 r/s; and a volume shrinkage rate is greatly reduced to 5% when the slurry is sintered into ceramic, so the problems of low solid content, high viscosity and large shrinkage rate of existing ceramic slurry are well solved.
本发明公开了一种DLP陶瓷打印浆料，其特征在于，包括如下重量份的组份：磷酸钙粉体50wt％～75wt％，树脂浆液25wt％～50wt％，以及占树脂浆液重量2wt％～3wt％的光引发剂。本发明通过对各组分配比的有效控制，制备得到适用于光固化3D打印的生物陶瓷浆料；同时，树脂浆液的组分中通过设置不同固含量的分散剂、不同粘度的活性稀释剂和不同粘度的预聚物相配合，通过对磷酸钙粉体预烧结处理，可使陶瓷浆料的固含量为72wt％，在剪切速率为0.1r/s，其黏度为820Pa·s，在最后烧结成陶瓷时体积收缩率大幅降低至5％，从而本发明很好的解决了现有陶瓷浆料固含量低，黏度高，收缩率大的问题。
DLP biological ceramic printing slurry
一种DLP生物陶瓷打印浆料
YAN XIAOLI (author) / LEI AIHUA (author)
2021-09-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
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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