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Low-cost pollution-free water-soluble binder 3D printing silicon carbide ceramic and preparation method thereof
The invention belongs to the technical field of silicon carbide 3D printing, and particularly relates to a low-cost and pollution-free water-soluble binder 3D printing silicon carbide ceramic and a preparation method thereof. The preparation method comprises the following steps: 1) mixing polyvinyl alcohol with a first modifier, and then mixing with a plasticizer to obtain plasticized modified polyvinyl alcohol; (2) mixing silicon carbide ceramic powder, a second modifier and carbon black to obtain mixed powder of modified silicon carbide and carbon black; 3) uniformly mixing the obtained mixed powder of the modified silicon carbide and the carbon black, the plasticized modified polyvinyl alcohol and an organic binder, and crushing and granulating to obtain a silicon carbide printing material; (4) carrying out 3D printing molding on the obtained silicon carbide printing material to obtain a silicon carbide ceramic biscuit; (5) degreasing the obtained silicon carbide ceramic biscuit to obtain a silicon carbide ceramic degreased green body; and (6) carrying out melt siliconizing reaction sintering on the silicon carbide ceramic degreased green body to obtain the 3D printing silicon carbide ceramic.
本发明属于碳化硅3D打印技术领域，具体涉及一种低成本、无污染水溶性粘结剂3D打印碳化硅陶瓷及其制备方法。该制备方法包括：1)先将聚乙烯醇和第一改性剂混合，再与增塑剂混合，得到增塑后的改性聚乙烯醇；(2)将碳化硅陶瓷粉末、第二改性剂和炭黑混合得到，得到改性碳化硅和炭黑的混合粉末；3)将所得改性碳化硅和炭黑的混合粉末、增塑后的改性聚乙烯醇和有机粘结剂进行混炼均匀并破碎造粒，得到碳化硅打印料；(4)将所得碳化硅打印料3D打印成型，得到碳化硅陶瓷素坯；(5)将所得碳化硅陶瓷素坯经过脱脂，得到碳化硅陶瓷脱脂坯体；(6)将碳化硅陶瓷脱脂坯体经过熔融渗硅反应烧结，得到3D打印碳化硅陶瓷。
Low-cost pollution-free water-soluble binder 3D printing silicon carbide ceramic and preparation method thereof
The invention belongs to the technical field of silicon carbide 3D printing, and particularly relates to a low-cost and pollution-free water-soluble binder 3D printing silicon carbide ceramic and a preparation method thereof. The preparation method comprises the following steps: 1) mixing polyvinyl alcohol with a first modifier, and then mixing with a plasticizer to obtain plasticized modified polyvinyl alcohol; (2) mixing silicon carbide ceramic powder, a second modifier and carbon black to obtain mixed powder of modified silicon carbide and carbon black; 3) uniformly mixing the obtained mixed powder of the modified silicon carbide and the carbon black, the plasticized modified polyvinyl alcohol and an organic binder, and crushing and granulating to obtain a silicon carbide printing material; (4) carrying out 3D printing molding on the obtained silicon carbide printing material to obtain a silicon carbide ceramic biscuit; (5) degreasing the obtained silicon carbide ceramic biscuit to obtain a silicon carbide ceramic degreased green body; and (6) carrying out melt siliconizing reaction sintering on the silicon carbide ceramic degreased green body to obtain the 3D printing silicon carbide ceramic.
本发明属于碳化硅3D打印技术领域，具体涉及一种低成本、无污染水溶性粘结剂3D打印碳化硅陶瓷及其制备方法。该制备方法包括：1)先将聚乙烯醇和第一改性剂混合，再与增塑剂混合，得到增塑后的改性聚乙烯醇；(2)将碳化硅陶瓷粉末、第二改性剂和炭黑混合得到，得到改性碳化硅和炭黑的混合粉末；3)将所得改性碳化硅和炭黑的混合粉末、增塑后的改性聚乙烯醇和有机粘结剂进行混炼均匀并破碎造粒，得到碳化硅打印料；(4)将所得碳化硅打印料3D打印成型，得到碳化硅陶瓷素坯；(5)将所得碳化硅陶瓷素坯经过脱脂，得到碳化硅陶瓷脱脂坯体；(6)将碳化硅陶瓷脱脂坯体经过熔融渗硅反应烧结，得到3D打印碳化硅陶瓷。
Low-cost pollution-free water-soluble binder 3D printing silicon carbide ceramic and preparation method thereof
一种低成本、无污染水溶性粘结剂3D打印碳化硅陶瓷及其制备方法
CHEN JIAN (author) / LIAO SHENGJUN (author) / HUANG ZHENGREN (author) / HUANG CHANGCONG (author) / GAO CHENXI (author)
2024-07-26
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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