Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cordierite porous ceramic material with three-dimensional connected structure and preparation method of cordierite porous ceramic material
The invention provides a cordierite porous ceramic material with a three-dimensional connected structure and a preparation method of the cordierite porous ceramic material. The preparation method specifically comprises the following steps: (1) weighing kaolin, talc and aluminum oxide, and adding deionized water to obtain a suspension; (2) adding ammonium polyacrylate into the suspension and adjusting the pH value of the slurry; (3) carrying out wet ball milling on the slurry, and adjusting the pH value again; (4) dropwise adding a n-propyl gallate solution into the slurry while stirring; (5) adding normal octane, and stirring to obtain a particle stable microemulsion; (6) drying and demolding to obtain a ceramic green body; and (7) high-temperature sintering. The preparation method comprises the following steps: by utilizing the interaction among a water phase, an oil phase and particles in an emulsion, adsorbing the particles on the surfaces of liquid drops to maintain the stability of an emulsion system, drying to remove the liquid phase, leaving a large number of pores in a green body after the liquid phase is volatilized, and sintering to obtain the porous ceramic. Compared with the prior art, the method is simple and efficient, the connectivity of the three-dimensional pore channel structure is good, and the porosity is adjustable.
本发明提供了一种具有三维连通结构的堇青石多孔陶瓷材料及其制备方法。具体包括：(1)称取高岭土、滑石、氧化铝，加入去离子水，得到悬浮液；(2)悬浮液中加入聚丙烯酸铵并调节料浆pH值；(3)湿法球磨料浆，再次调节pH值；(4)在料浆中搅拌滴加没食子酸正丙酯溶液；(5)加入正辛烷，搅拌得到颗粒稳定微乳液；(6)干燥、脱模得到陶瓷生坯；(7)高温烧结。本发明利用乳液中水相、油相和颗粒三者之间的相互作用，通过将颗粒吸附在液滴表面以保持乳液体系的稳定性，再烘干去除液相，使其挥发后在生坯中留下大量的气孔，烧结即可得到多孔陶瓷。相比于现有技术，本方法简单高效，三维孔道结构联通性好，孔隙率可调。
Cordierite porous ceramic material with three-dimensional connected structure and preparation method of cordierite porous ceramic material
The invention provides a cordierite porous ceramic material with a three-dimensional connected structure and a preparation method of the cordierite porous ceramic material. The preparation method specifically comprises the following steps: (1) weighing kaolin, talc and aluminum oxide, and adding deionized water to obtain a suspension; (2) adding ammonium polyacrylate into the suspension and adjusting the pH value of the slurry; (3) carrying out wet ball milling on the slurry, and adjusting the pH value again; (4) dropwise adding a n-propyl gallate solution into the slurry while stirring; (5) adding normal octane, and stirring to obtain a particle stable microemulsion; (6) drying and demolding to obtain a ceramic green body; and (7) high-temperature sintering. The preparation method comprises the following steps: by utilizing the interaction among a water phase, an oil phase and particles in an emulsion, adsorbing the particles on the surfaces of liquid drops to maintain the stability of an emulsion system, drying to remove the liquid phase, leaving a large number of pores in a green body after the liquid phase is volatilized, and sintering to obtain the porous ceramic. Compared with the prior art, the method is simple and efficient, the connectivity of the three-dimensional pore channel structure is good, and the porosity is adjustable.
本发明提供了一种具有三维连通结构的堇青石多孔陶瓷材料及其制备方法。具体包括：(1)称取高岭土、滑石、氧化铝，加入去离子水，得到悬浮液；(2)悬浮液中加入聚丙烯酸铵并调节料浆pH值；(3)湿法球磨料浆，再次调节pH值；(4)在料浆中搅拌滴加没食子酸正丙酯溶液；(5)加入正辛烷，搅拌得到颗粒稳定微乳液；(6)干燥、脱模得到陶瓷生坯；(7)高温烧结。本发明利用乳液中水相、油相和颗粒三者之间的相互作用，通过将颗粒吸附在液滴表面以保持乳液体系的稳定性，再烘干去除液相，使其挥发后在生坯中留下大量的气孔，烧结即可得到多孔陶瓷。相比于现有技术，本方法简单高效，三维孔道结构联通性好，孔隙率可调。
Cordierite porous ceramic material with three-dimensional connected structure and preparation method of cordierite porous ceramic material
一种具有三维连通结构的堇青石多孔陶瓷材料及其制备方法
HU DI (Autor:in) / LI JINHONG (Autor:in) / LIANG CHAO (Autor:in) / LUAN XUEZHU (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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