Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of nanowire/silicon-aluminum aerogel composite material
The invention discloses a preparation method of a silicon dioxide nanowire-reinforced silicon-aluminum aerogel composite material. According to the invention, silicon-aluminum aerogel prepared by using aluminum chloride hexahydrate and tetraethoxysilane as co-precursors and using water and ethanol as solvents is used as a matrix, silicon dioxide nanowires are used as a reinforcing agent, and compounding and supercritical drying processes are conducted to prepare the silicon dioxide nanowire/silicon-aluminum aerogel composite material with excellent performance . The obtained aerogel compositematerial is low in sample density, high in specific surface area, high in mechanical property and good in high-temperature resistance. The preparation method is simple in process, flexible to operateand easy for mass production.
本发明公开了一种用二氧化硅纳米线增强硅铝气凝胶复合材料的制备方法。以六水合氯化铝、正硅酸乙酯为共前驱体，水和乙醇为溶剂制备的硅铝气凝胶作为基体，二氧化硅纳米线作为增强剂，经过复合、超临界干燥工艺制备得到了具有优良性能的二氧化硅纳米线/硅铝气凝胶复合材料。所得的气凝胶复合材料样品密度低，比表面积高，力学性能强，耐高温性能好。该制备方法工艺简单，操作灵活，易于大量生产。
Preparation method of nanowire/silicon-aluminum aerogel composite material
The invention discloses a preparation method of a silicon dioxide nanowire-reinforced silicon-aluminum aerogel composite material. According to the invention, silicon-aluminum aerogel prepared by using aluminum chloride hexahydrate and tetraethoxysilane as co-precursors and using water and ethanol as solvents is used as a matrix, silicon dioxide nanowires are used as a reinforcing agent, and compounding and supercritical drying processes are conducted to prepare the silicon dioxide nanowire/silicon-aluminum aerogel composite material with excellent performance . The obtained aerogel compositematerial is low in sample density, high in specific surface area, high in mechanical property and good in high-temperature resistance. The preparation method is simple in process, flexible to operateand easy for mass production.
本发明公开了一种用二氧化硅纳米线增强硅铝气凝胶复合材料的制备方法。以六水合氯化铝、正硅酸乙酯为共前驱体，水和乙醇为溶剂制备的硅铝气凝胶作为基体，二氧化硅纳米线作为增强剂，经过复合、超临界干燥工艺制备得到了具有优良性能的二氧化硅纳米线/硅铝气凝胶复合材料。所得的气凝胶复合材料样品密度低，比表面积高，力学性能强，耐高温性能好。该制备方法工艺简单，操作灵活，易于大量生产。
Preparation method of nanowire/silicon-aluminum aerogel composite material
一种纳米线/硅铝气凝胶复合材料的制备方法
CHEN XIAOHONG (Autor:in) / ZHANG YUE (Autor:in) / SONG HUAIHE (Autor:in)
23.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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