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Preparation method of high-flux halloysite nanotube ceramic membrane
The invention relates to the technical field of ceramic membrane processing, in particular to a preparation method of a high-flux halloysite nanotube ceramic membrane, which comprises the following steps: mixing ceramic powder halloysite nanotubes with at least one of a high-molecular polymer, a dispersant, a lubricant, a binder and a solvent; preparing the obtained mixture into a green body film by adopting processes such as a phase inversion method, a tabletting method, a freezing forming method or an extrusion method; and sintering the green body membrane at a high temperature of 550-1500 DEG C to obtain the high-flux halloysite nanotube ceramic membrane. The prepared ceramic membrane has high porosity, high nitrogen flux and high pure water flux, various membrane preparation methods are provided, ceramic membranes with various appearances can be obtained, the pore size (20nm-20 microns) can be regulated and controlled in a wide range by changing different membrane preparation methods, the highest porosity can reach 90%, and preparation of the high-flux ceramic membrane is achieved.
本发明涉及陶瓷膜加工技术领域，尤其涉及一种高通量埃洛石纳米管陶瓷膜的制备方法，取陶瓷粉体埃洛石纳米管与高分子聚合物、分散剂、润滑剂、粘结剂和溶剂中的至少一种混合，得到的混合物采用相转化法、压片法、冷冻成型法或挤出法等工艺制成生坯膜；将生坯膜置于550～1500℃高温烧结，得到高通量埃洛石纳米管陶瓷膜。本发明制成的陶瓷膜具有高孔隙率、高氮气通量和高纯水通量，并提供了多种制膜方法，可获得多种外观的陶瓷膜，通过改变不同制膜方法，可以实现在较宽范围内调控孔径大小(20nm～20μm)，且孔隙率最高可达90％，实现高通量陶瓷膜的制备。
Preparation method of high-flux halloysite nanotube ceramic membrane
The invention relates to the technical field of ceramic membrane processing, in particular to a preparation method of a high-flux halloysite nanotube ceramic membrane, which comprises the following steps: mixing ceramic powder halloysite nanotubes with at least one of a high-molecular polymer, a dispersant, a lubricant, a binder and a solvent; preparing the obtained mixture into a green body film by adopting processes such as a phase inversion method, a tabletting method, a freezing forming method or an extrusion method; and sintering the green body membrane at a high temperature of 550-1500 DEG C to obtain the high-flux halloysite nanotube ceramic membrane. The prepared ceramic membrane has high porosity, high nitrogen flux and high pure water flux, various membrane preparation methods are provided, ceramic membranes with various appearances can be obtained, the pore size (20nm-20 microns) can be regulated and controlled in a wide range by changing different membrane preparation methods, the highest porosity can reach 90%, and preparation of the high-flux ceramic membrane is achieved.
本发明涉及陶瓷膜加工技术领域，尤其涉及一种高通量埃洛石纳米管陶瓷膜的制备方法，取陶瓷粉体埃洛石纳米管与高分子聚合物、分散剂、润滑剂、粘结剂和溶剂中的至少一种混合，得到的混合物采用相转化法、压片法、冷冻成型法或挤出法等工艺制成生坯膜；将生坯膜置于550～1500℃高温烧结，得到高通量埃洛石纳米管陶瓷膜。本发明制成的陶瓷膜具有高孔隙率、高氮气通量和高纯水通量，并提供了多种制膜方法，可获得多种外观的陶瓷膜，通过改变不同制膜方法，可以实现在较宽范围内调控孔径大小(20nm～20μm)，且孔隙率最高可达90％，实现高通量陶瓷膜的制备。
Preparation method of high-flux halloysite nanotube ceramic membrane
一种高通量埃洛石纳米管陶瓷膜的制备方法
YU LIANG (author) / GENG SHINING (author) / FENG XIAO (author) / WANG BO (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
MULTIFUNCTIONAL HALLOYSITE-BASED CERAMIC MEMBRANE FOR WATER TREATMENT APPLICATIONS
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