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Three-dimensional communicated cordierite foamed ceramic with multiple hole-window structures and preparation method of three-dimensional communicated cordierite foamed ceramic
The invention provides a three-dimensional communicated cordierite foamed ceramic with multiple pore-window structures and a preparation method thereof, and the preparation method specifically comprises the following steps: (1) mixing MgO, Al2O3 and SiO2, and adding deionized water to obtain a ceramic suspension; (2) continuing to add polyacrylic acid, sodium carboxymethyl cellulose, cane sugar and potato starch to obtain ceramic slurry; (3) adjusting the pH value of the obtained slurry to obtain a stable precursor; (4) carrying out wet ball milling on the precursor; (5) adjusting the pH value of the ball-milled slurry; (6) carrying out in-situ modification on the slurry by using a n-propyl gallate ethanol solution; (7) adjusting the pH value of the modified slurry, and standing and aging; (8) adding normal octane into the slurry, and emulsifying to obtain a particle stable microemulsion; (9) drying and demolding to obtain a ceramic green body; and (10) sintering. Potato starch and cane sugar are used as pore-forming agents to optimize the pore diameter, so that the three-dimensional communicated porous cordierite ceramic with high porosity, high mechanical strength and multiple pore-window structures is prepared.
本发明提供了一种具有多重“孔‑窗结构”的三维连通堇青石泡沫陶瓷及其制备方法，具体包括：(1)将MgO、Al2O3和SiO2混合，加入去离子水，得到陶瓷悬浮液；(2)继续加入聚丙烯酸、羧甲基纤维素钠、蔗糖和马铃薯淀粉，得到陶瓷料浆；(3)调节所得料浆pH，得到稳定的前驱体；(4)湿法球磨前驱体；(5)调节球磨后的料浆pH；(6)以没食子酸正丙酯乙醇溶液对料浆进行原位改性；(7)调节改性后料浆pH，静置陈化；(8)料浆中加入正辛烷，乳化得到颗粒稳定微乳液；(9)干燥、脱模得到陶瓷生坯；(10)烧结。本发明以马铃薯淀粉和蔗糖作为成孔剂优化孔径，从而制备高孔隙率、高力学强度的具有多重“孔‑窗结构”的三维连通多孔堇青石陶瓷。
Three-dimensional communicated cordierite foamed ceramic with multiple hole-window structures and preparation method of three-dimensional communicated cordierite foamed ceramic
The invention provides a three-dimensional communicated cordierite foamed ceramic with multiple pore-window structures and a preparation method thereof, and the preparation method specifically comprises the following steps: (1) mixing MgO, Al2O3 and SiO2, and adding deionized water to obtain a ceramic suspension; (2) continuing to add polyacrylic acid, sodium carboxymethyl cellulose, cane sugar and potato starch to obtain ceramic slurry; (3) adjusting the pH value of the obtained slurry to obtain a stable precursor; (4) carrying out wet ball milling on the precursor; (5) adjusting the pH value of the ball-milled slurry; (6) carrying out in-situ modification on the slurry by using a n-propyl gallate ethanol solution; (7) adjusting the pH value of the modified slurry, and standing and aging; (8) adding normal octane into the slurry, and emulsifying to obtain a particle stable microemulsion; (9) drying and demolding to obtain a ceramic green body; and (10) sintering. Potato starch and cane sugar are used as pore-forming agents to optimize the pore diameter, so that the three-dimensional communicated porous cordierite ceramic with high porosity, high mechanical strength and multiple pore-window structures is prepared.
本发明提供了一种具有多重“孔‑窗结构”的三维连通堇青石泡沫陶瓷及其制备方法，具体包括：(1)将MgO、Al2O3和SiO2混合，加入去离子水，得到陶瓷悬浮液；(2)继续加入聚丙烯酸、羧甲基纤维素钠、蔗糖和马铃薯淀粉，得到陶瓷料浆；(3)调节所得料浆pH，得到稳定的前驱体；(4)湿法球磨前驱体；(5)调节球磨后的料浆pH；(6)以没食子酸正丙酯乙醇溶液对料浆进行原位改性；(7)调节改性后料浆pH，静置陈化；(8)料浆中加入正辛烷，乳化得到颗粒稳定微乳液；(9)干燥、脱模得到陶瓷生坯；(10)烧结。本发明以马铃薯淀粉和蔗糖作为成孔剂优化孔径，从而制备高孔隙率、高力学强度的具有多重“孔‑窗结构”的三维连通多孔堇青石陶瓷。
Three-dimensional communicated cordierite foamed ceramic with multiple hole-window structures and preparation method of three-dimensional communicated cordierite foamed ceramic
一种具有多重“孔-窗结构”的三维连通堇青石泡沫陶瓷及其制备方法
HU DI (author) / LI JINHONG (author) / LUAN XUEZHU (author) / LIANG CHAO (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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