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Zirconium dioxide porous ceramic with hierarchical pore structure and preparation method of zirconium dioxide porous ceramic
The invention discloses a zirconium dioxide porous ceramic with a hierarchical pore structure and preparation method of the zirconium dioxide porous ceramic. The preparation method comprises the following steps: preparing a zirconium dioxide intermediate porous body by combining a pore forming agent and a sol-gel method; carrying out ball milling on the middle porous body to obtain zirconium oxide porous powder; and with the porous powder as a raw material, conducting gel casting and heat treatment to obtain a zirconium dioxide porous ceramic block. The zirconium oxide porous powder with a hierarchical pore structure is prepared by combining a template method and a sol-gel method. The hierarchical pore powder has the advantage of controllable pore size. Then gel injection molding is conducted to successfully prepare the zirconia porous ceramic block with the hierarchical pore structure. Tert-butyl alcohol is also a pore-forming agent in the gel casting stage, and provides a pore source of another size for the zirconium oxide porous ceramic block. The porosity of the zirconia ceramic block with the hierarchical pore structure can reach 70% or above, and the zirconia ceramic block can be widely applied to the fields of filtration, membrane separation, high-temperature heat insulation and the like.
本发明公开了一种多级孔结构二氧化锆多孔陶瓷及其制备方法，结合造孔剂和溶胶‑凝胶法制备二氧化锆中间多孔体；将中间多孔体球磨，得到氧化锆多孔粉料；以上述多孔粉料为原料，经过凝胶注模成型和热处理后得到二氧化锆多孔陶瓷块体。本发明结合模板法及溶胶‑凝胶法，制备具有多级孔结构的氧化锆多孔粉末。这些多级孔粉料，具有孔径尺寸可控的优点。接着采用凝胶注模成型，成功制成多级孔结构氧化锆多孔陶瓷块体。叔丁醇在凝胶注模成型阶段也是一种成孔剂，为氧化锆多孔陶瓷块体提供了另一种尺寸的孔隙来源。这种多级孔结构氧化锆陶瓷块体，孔隙率可达70％以上，可广泛应用于过滤、膜分离及高温隔热等领域。
Zirconium dioxide porous ceramic with hierarchical pore structure and preparation method of zirconium dioxide porous ceramic
The invention discloses a zirconium dioxide porous ceramic with a hierarchical pore structure and preparation method of the zirconium dioxide porous ceramic. The preparation method comprises the following steps: preparing a zirconium dioxide intermediate porous body by combining a pore forming agent and a sol-gel method; carrying out ball milling on the middle porous body to obtain zirconium oxide porous powder; and with the porous powder as a raw material, conducting gel casting and heat treatment to obtain a zirconium dioxide porous ceramic block. The zirconium oxide porous powder with a hierarchical pore structure is prepared by combining a template method and a sol-gel method. The hierarchical pore powder has the advantage of controllable pore size. Then gel injection molding is conducted to successfully prepare the zirconia porous ceramic block with the hierarchical pore structure. Tert-butyl alcohol is also a pore-forming agent in the gel casting stage, and provides a pore source of another size for the zirconium oxide porous ceramic block. The porosity of the zirconia ceramic block with the hierarchical pore structure can reach 70% or above, and the zirconia ceramic block can be widely applied to the fields of filtration, membrane separation, high-temperature heat insulation and the like.
本发明公开了一种多级孔结构二氧化锆多孔陶瓷及其制备方法，结合造孔剂和溶胶‑凝胶法制备二氧化锆中间多孔体；将中间多孔体球磨，得到氧化锆多孔粉料；以上述多孔粉料为原料，经过凝胶注模成型和热处理后得到二氧化锆多孔陶瓷块体。本发明结合模板法及溶胶‑凝胶法，制备具有多级孔结构的氧化锆多孔粉末。这些多级孔粉料，具有孔径尺寸可控的优点。接着采用凝胶注模成型，成功制成多级孔结构氧化锆多孔陶瓷块体。叔丁醇在凝胶注模成型阶段也是一种成孔剂，为氧化锆多孔陶瓷块体提供了另一种尺寸的孔隙来源。这种多级孔结构氧化锆陶瓷块体，孔隙率可达70％以上，可广泛应用于过滤、膜分离及高温隔热等领域。
Zirconium dioxide porous ceramic with hierarchical pore structure and preparation method of zirconium dioxide porous ceramic
一种多级孔结构二氧化锆多孔陶瓷及其制备方法
LIU YUFU (author) / YANG CHENXI (author)
2021-07-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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