Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Molten 3D direct-writing printing slurry as well as preparation method and application thereof
The invention discloses molten-state 3D direct-writing printing slurry as well as a preparation method and application thereof, the molten-state 3D direct-writing printing slurry is a molten-state substance obtained by modifying a ceramic precursor with a modifier and then heating the obtained modified ceramic precursor powder to 250-300 DEG C, wherein the ceramic precursor is polycarbosilane, andthe modifier is selected from at least one of polypropylene, hyperbranched liquid polycarbosilane, liquid polyvinyl silane and polydimethylsiloxane. The invention, for the first time, provides the 3Ddirect-writing printing slurry in a molten state, wherein the 3D direct-writing printing slurry is completely solvent-free, and the rheological property of the slurry can be simply controlled by controlling the temperature. Compared with solutions and suspension slurry, the ceramic structure prepared from the molten 3D direct-writing printing slurry is very smooth in surface and hardly has defects inside, the process that a solvent needs to be removed from a printed green body is removed, and the adverse effect of the solvent on the green body is overcome.
本发明公开了一种熔融态3D直写浆料及其制备方法和应用，所述熔融态3D直写打印浆料为采用改性剂对陶瓷先驱体改性，所得改性陶瓷先驱体粉末再加热至250℃～300℃所得熔融态的物质，所述陶瓷先驱体为聚碳硅烷。所述改性剂选自聚丙烯，超支化液态聚碳硅烷，液态聚乙烯基硅烷，聚二甲基硅氧烷中的至少一种。本发明首创的提供了一种熔融态的3D直写打印浆料，即是一种完全无溶剂的3D直写打印浆料，通过控制温度即可以简单的控制浆料流变性能。相比于溶液、悬浮液浆料，采用本发明中的熔融态的3D直写打印浆料制备的陶瓷结构表面十分光滑，内部几乎没有缺陷，去除了打印后的坯体需要脱除溶剂的过程，克服了溶剂对坯体的不利影响。
Molten 3D direct-writing printing slurry as well as preparation method and application thereof
The invention discloses molten-state 3D direct-writing printing slurry as well as a preparation method and application thereof, the molten-state 3D direct-writing printing slurry is a molten-state substance obtained by modifying a ceramic precursor with a modifier and then heating the obtained modified ceramic precursor powder to 250-300 DEG C, wherein the ceramic precursor is polycarbosilane, andthe modifier is selected from at least one of polypropylene, hyperbranched liquid polycarbosilane, liquid polyvinyl silane and polydimethylsiloxane. The invention, for the first time, provides the 3Ddirect-writing printing slurry in a molten state, wherein the 3D direct-writing printing slurry is completely solvent-free, and the rheological property of the slurry can be simply controlled by controlling the temperature. Compared with solutions and suspension slurry, the ceramic structure prepared from the molten 3D direct-writing printing slurry is very smooth in surface and hardly has defects inside, the process that a solvent needs to be removed from a printed green body is removed, and the adverse effect of the solvent on the green body is overcome.
本发明公开了一种熔融态3D直写浆料及其制备方法和应用，所述熔融态3D直写打印浆料为采用改性剂对陶瓷先驱体改性，所得改性陶瓷先驱体粉末再加热至250℃～300℃所得熔融态的物质，所述陶瓷先驱体为聚碳硅烷。所述改性剂选自聚丙烯，超支化液态聚碳硅烷，液态聚乙烯基硅烷，聚二甲基硅氧烷中的至少一种。本发明首创的提供了一种熔融态的3D直写打印浆料，即是一种完全无溶剂的3D直写打印浆料，通过控制温度即可以简单的控制浆料流变性能。相比于溶液、悬浮液浆料，采用本发明中的熔融态的3D直写打印浆料制备的陶瓷结构表面十分光滑，内部几乎没有缺陷，去除了打印后的坯体需要脱除溶剂的过程，克服了溶剂对坯体的不利影响。
Molten 3D direct-writing printing slurry as well as preparation method and application thereof
一种熔融态3D直写打印浆料及其制备方法和应用
ZHANG DOU (Autor:in) / WANG XIAOFENG (Autor:in) / ZHAO LIANZHONG (Autor:in) / XIONG HUIWEN (Autor:in)
11.09.2020
Patent
Elektronische Ressource
Chinesisch
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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