期刊
CERAMICS INTERNATIONAL
卷 47, 期 8, 页码 10464-10477出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.12.235
关键词
Ceramic membrane; Membrane support; Extrusion; Influencing factors
资金
- National Key R&D Program of China [2018YFB0604302]
- Key R&D Program of Hebei Province (CN) [19273606D]
Inorganic ceramic membrane offers excellent performance and is applied in various fields. The preparation of support by extrusion is a common method, with factors like raw material types, particle size, extrusion parameters, pore-forming agents, and sintering temperature influencing product performance.
Inorganic ceramic membrane has the advantages of excellent thermal stability, mechanical strength, chemical resistance and fouling resistance. And it has been widely studied and applied in flue gas moisture recovery, gas purification and wastewater treatment. The support is the basis of preparation and application of inorganic ceramic membrane, and its performance determines the performance of the ceramic membrane to a certain extent. At present, extrusion is a common method used in the ceramic industry to prepare supports, which has the advantages of high production efficiency and good product uniformity. In this paper, the processes of preparing support by extrusion including mixing, vacuum pugging, aging, extruding and sintering are introduced in detail. In preparing support by extrusion, the product performance is easily affected by many factors, including the type of raw materials, raw material particles, extrusion parameters, pore-forming agents, sintering temperature, and sintering aids. Therefore, this paper also conducts a comparative and comprehensive study on the process parameters and influencing factors in the process of preparing ceramic membrane support by extrusion to obtain the support with the best performance. The main influencing factors that this paper focuses on are the types of raw materials, powder particles, water content, pore-forming agents, binders, sintering temperature, and sintering aids. The trends and mechanisms of these factors affecting the performance of the support are analyzed in detail.
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