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Double-response 4D printing heterogeneous ceramic support and preparation method thereof
The invention discloses a double-response 4D printing heterogeneous ceramic bracket and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing a biological piezoelectric ceramic material with photosensitive resin, a photoinitiator, a dispersing agent and a surface additive to obtain piezoelectric ceramic slurry; uniformly mixing the particles with the magnetocaloric effect with a biological ceramic material, photosensitive resin, a photoinitiator, a dispersing agent and a surface additive to obtain magnetocaloric ceramic slurry; and based on the three-dimensional porous model of the stent to be prepared, the piezoelectric layer and the magnetocaloric layer are alternately printed by utilizing the piezoelectric ceramic slurry and the magnetocaloric ceramic slurry through the additive manufacturing technology, a heterogeneous ceramic stent biscuit is obtained, and the heterogeneous ceramic stent is obtained after glue discharging, sintering, polarization and magnetization are conducted in sequence. The piezoelectric layer of the heterogeneous ceramic support generates potential under the action of ultrasonic irradiation, and the magnetocaloric layer can be heated under the stimulation of an exogenous magnetic field. The composite structure endows the stent with multiple practical functions, so that the treatment effect is more uniform and efficient.
本发明公开了一种双响应4D打印异质陶瓷支架及其制备方法。所述制备方法包括：将生物压电陶瓷材料与光敏树脂、光引发剂、分散剂、表面助剂混合均匀，得到压电陶瓷浆料；将具有磁热效应的粒子与生物陶瓷材料、光敏树脂、光引发剂、分散剂、表面助剂均匀混合，得到磁热陶瓷浆料；基于待制备支架的三维多孔模型，采用增材制造技术分别利用压电陶瓷浆料和磁热陶瓷浆料，交替打印压电层和磁热层，得到异质陶瓷支架素坯，依次进行排胶、烧结、极化和磁化后得到异质陶瓷支架。本发明的异质陶瓷支架的压电层在超声辐照作用下产生电势，磁热层可在外源性磁场的刺激下升温。复合结构赋予支架多项实用功能，使治疗效果更加均匀、高效。
Double-response 4D printing heterogeneous ceramic support and preparation method thereof
The invention discloses a double-response 4D printing heterogeneous ceramic bracket and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing a biological piezoelectric ceramic material with photosensitive resin, a photoinitiator, a dispersing agent and a surface additive to obtain piezoelectric ceramic slurry; uniformly mixing the particles with the magnetocaloric effect with a biological ceramic material, photosensitive resin, a photoinitiator, a dispersing agent and a surface additive to obtain magnetocaloric ceramic slurry; and based on the three-dimensional porous model of the stent to be prepared, the piezoelectric layer and the magnetocaloric layer are alternately printed by utilizing the piezoelectric ceramic slurry and the magnetocaloric ceramic slurry through the additive manufacturing technology, a heterogeneous ceramic stent biscuit is obtained, and the heterogeneous ceramic stent is obtained after glue discharging, sintering, polarization and magnetization are conducted in sequence. The piezoelectric layer of the heterogeneous ceramic support generates potential under the action of ultrasonic irradiation, and the magnetocaloric layer can be heated under the stimulation of an exogenous magnetic field. The composite structure endows the stent with multiple practical functions, so that the treatment effect is more uniform and efficient.
本发明公开了一种双响应4D打印异质陶瓷支架及其制备方法。所述制备方法包括：将生物压电陶瓷材料与光敏树脂、光引发剂、分散剂、表面助剂混合均匀，得到压电陶瓷浆料；将具有磁热效应的粒子与生物陶瓷材料、光敏树脂、光引发剂、分散剂、表面助剂均匀混合，得到磁热陶瓷浆料；基于待制备支架的三维多孔模型，采用增材制造技术分别利用压电陶瓷浆料和磁热陶瓷浆料，交替打印压电层和磁热层，得到异质陶瓷支架素坯，依次进行排胶、烧结、极化和磁化后得到异质陶瓷支架。本发明的异质陶瓷支架的压电层在超声辐照作用下产生电势，磁热层可在外源性磁场的刺激下升温。复合结构赋予支架多项实用功能，使治疗效果更加均匀、高效。
Double-response 4D printing heterogeneous ceramic support and preparation method thereof
一种双响应4D打印异质陶瓷支架及其制备方法
YAN CHUNZE (author) / LI YINJIN (author) / SU JIN (author) / CHEN ANNAN (author) / CHEN PENG (author) / SHI YUSHENG (author)
2022-10-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
A61L
Verfahren oder Vorrichtungen zum Sterilisieren von Stoffen oder Gegenständen allgemein
,
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL
/
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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