Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-defect high-precision ceramic ultrafiltration support and preparation method thereof
The invention discloses a low-defect high-precision ceramic ultrafiltration support and a preparation method thereof, and relates to the technical field of ceramic membranes, the ceramic ultrafiltration support comprises the following raw and auxiliary materials: 100 parts of alumina powder, 5-20 parts of kaolin, 5-10 parts of a sintering aid, 0.1-1 part of sodium carboxymethyl cellulose, 1-10 parts of a pore forming agent, 0.1-1 part of sodium tripolyphosphate, 0.5-3 parts of sodium hexametaphosphate, and 100 parts of water. The particle size D50 of the alumina powder is 0.5-3 [mu] m, and the particle size distribution (D90-D10)/D50 is less than or equal to 3.0; the preparation method comprises the steps of material preparation, raw material wet ball milling, slurry grading, slip casting, drying, sintering, polishing and grinding, and cutting. According to the preparation method of the low-defect high-precision ceramic ultrafiltration supporting body, the slurry which is proper in particle size and narrow in distribution and is uniformly mixed with raw materials and auxiliary materials is finally obtained through slurry grading in a slip casting mode, and it is guaranteed that the pore size distribution of the finally obtained supporting body is narrow, and meanwhile the pore size is small and reaches the ultrafiltration level.
本发明公开了一种低缺陷高精密陶瓷超滤支撑体及其制备方法，涉及陶瓷膜技术领域，陶瓷超滤支撑体的原辅料包括氧化铝粉体100份，高岭土5‑20份，烧结助剂5‑10份，羧甲基纤维素钠0.1‑1份，造孔剂1‑10份，三聚磷酸钠0.1‑1份，六偏磷酸钠0.5‑3份，水100份，氧化铝粉体的粒径D50为0.5‑3μm，且粒度分布(D90‑D10)/D50≤3.0；其制备方法包括配料、原料湿法球磨、浆料分级、注浆成型、干燥、烧结、抛光打磨，切割步骤。本发明提供了一种低缺陷高精密陶瓷超滤支撑体制备方法，采用注浆成型的方式，通过浆料分级，最后得到粒径大小合适、分布较窄的原辅料混合均匀浆料，保证了最后得到的支撑体孔径分布窄，同时孔径较小达到超滤级别。
Low-defect high-precision ceramic ultrafiltration support and preparation method thereof
The invention discloses a low-defect high-precision ceramic ultrafiltration support and a preparation method thereof, and relates to the technical field of ceramic membranes, the ceramic ultrafiltration support comprises the following raw and auxiliary materials: 100 parts of alumina powder, 5-20 parts of kaolin, 5-10 parts of a sintering aid, 0.1-1 part of sodium carboxymethyl cellulose, 1-10 parts of a pore forming agent, 0.1-1 part of sodium tripolyphosphate, 0.5-3 parts of sodium hexametaphosphate, and 100 parts of water. The particle size D50 of the alumina powder is 0.5-3 [mu] m, and the particle size distribution (D90-D10)/D50 is less than or equal to 3.0; the preparation method comprises the steps of material preparation, raw material wet ball milling, slurry grading, slip casting, drying, sintering, polishing and grinding, and cutting. According to the preparation method of the low-defect high-precision ceramic ultrafiltration supporting body, the slurry which is proper in particle size and narrow in distribution and is uniformly mixed with raw materials and auxiliary materials is finally obtained through slurry grading in a slip casting mode, and it is guaranteed that the pore size distribution of the finally obtained supporting body is narrow, and meanwhile the pore size is small and reaches the ultrafiltration level.
本发明公开了一种低缺陷高精密陶瓷超滤支撑体及其制备方法，涉及陶瓷膜技术领域，陶瓷超滤支撑体的原辅料包括氧化铝粉体100份，高岭土5‑20份，烧结助剂5‑10份，羧甲基纤维素钠0.1‑1份，造孔剂1‑10份，三聚磷酸钠0.1‑1份，六偏磷酸钠0.5‑3份，水100份，氧化铝粉体的粒径D50为0.5‑3μm，且粒度分布(D90‑D10)/D50≤3.0；其制备方法包括配料、原料湿法球磨、浆料分级、注浆成型、干燥、烧结、抛光打磨，切割步骤。本发明提供了一种低缺陷高精密陶瓷超滤支撑体制备方法，采用注浆成型的方式，通过浆料分级，最后得到粒径大小合适、分布较窄的原辅料混合均匀浆料，保证了最后得到的支撑体孔径分布窄，同时孔径较小达到超滤级别。
Low-defect high-precision ceramic ultrafiltration support and preparation method thereof
一种低缺陷高精密陶瓷超滤支撑体及其制备方法
HUANG FEI (Autor:in) / YU LIANG (Autor:in) / YUAN MING (Autor:in) / DING BAISUO (Autor:in) / YU QINGHAI (Autor:in) / WANG YU (Autor:in)
29.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B24B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
,
Maschinen, Einrichtungen oder Verfahren zum Schleifen oder Polieren
/
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
PREPARATION METHOD FOR TITANIA CERAMIC ULTRAFILTRATION MEMBRANE
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