Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic microsphere and preparation method thereof
The invention belongs to the technical field of ceramic molding, and particularly relates to a ceramic microsphere and a preparation method thereof. The ceramic microsphere is obtained from a glue solution through an internal gelation process, wherein the glue solution comprises metal ions, hexamethylenetetramine and urea, and the glue solution also comprises a complexing agent acetylacetone or aderivative thereof. By adding the complexing agent, the stability of the glue solution at normal temperature can be prolonged, the content of urea can be increased, more urea-formaldehyde resin is generated, the supporting effect is improved, the strength of the gel ball is improved, and the situation that the gel ball is broken or even broken in subsequent treatment is avoided. The obtained ceramic microsphere has the advantages of being uniform in size, good in sphericity degree and free of surface cracking, a nozzle is not blocked in the preparation process, the yield is high, and industrial large-scale production can be achieved. Besides, the non-ionic surfactant is adopted to replace an organic solvent in the prior art, so that the wastewater treatment cost is reduced, and the production environment is greatly improved.
本发明属于陶瓷成型技术领域，具体涉及一种陶瓷微球及其制备方法。所述陶瓷微球由胶液通过内胶凝工艺获得；其中所述胶液包括金属离子、六次甲基四胺和尿素；所述胶液还包括络合剂乙酰丙酮或其衍生物。本发明通过添加络合剂不仅可延长胶液在常温下稳定性，而且可使尿素含量提高，进而产生更多的脲醛树脂提高支撑作用，从而提高凝胶球的强度，避免在后续处理中出现破裂甚至碎裂情况。本发明所得陶瓷微球具有尺寸均匀、球形度好、表面无开裂的优点，且制备过程中喷嘴不堵塞，产量高，可实现工业化大规模生产。此外，本发明采用非离子表面活化剂替代现有工艺的有机溶剂，不仅降低废水处理成本，而且大大改善生产环境。
Ceramic microsphere and preparation method thereof
The invention belongs to the technical field of ceramic molding, and particularly relates to a ceramic microsphere and a preparation method thereof. The ceramic microsphere is obtained from a glue solution through an internal gelation process, wherein the glue solution comprises metal ions, hexamethylenetetramine and urea, and the glue solution also comprises a complexing agent acetylacetone or aderivative thereof. By adding the complexing agent, the stability of the glue solution at normal temperature can be prolonged, the content of urea can be increased, more urea-formaldehyde resin is generated, the supporting effect is improved, the strength of the gel ball is improved, and the situation that the gel ball is broken or even broken in subsequent treatment is avoided. The obtained ceramic microsphere has the advantages of being uniform in size, good in sphericity degree and free of surface cracking, a nozzle is not blocked in the preparation process, the yield is high, and industrial large-scale production can be achieved. Besides, the non-ionic surfactant is adopted to replace an organic solvent in the prior art, so that the wastewater treatment cost is reduced, and the production environment is greatly improved.
本发明属于陶瓷成型技术领域，具体涉及一种陶瓷微球及其制备方法。所述陶瓷微球由胶液通过内胶凝工艺获得；其中所述胶液包括金属离子、六次甲基四胺和尿素；所述胶液还包括络合剂乙酰丙酮或其衍生物。本发明通过添加络合剂不仅可延长胶液在常温下稳定性，而且可使尿素含量提高，进而产生更多的脲醛树脂提高支撑作用，从而提高凝胶球的强度，避免在后续处理中出现破裂甚至碎裂情况。本发明所得陶瓷微球具有尺寸均匀、球形度好、表面无开裂的优点，且制备过程中喷嘴不堵塞，产量高，可实现工业化大规模生产。此外，本发明采用非离子表面活化剂替代现有工艺的有机溶剂，不仅降低废水处理成本，而且大大改善生产环境。
Ceramic microsphere and preparation method thereof
一种陶瓷微球及其制备方法
LI JIANJUN (Autor:in) / MA JINGTAO (Autor:in) / ZHAO XINGYU (Autor:in) / HAO SHAOCHANG (Autor:in) / FANG YONGHAN (Autor:in) / HUANG ZHIWEN (Autor:in) / DENG CHANGSHENG (Autor:in) / LIU BING (Autor:in)
20.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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