Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of nano silicon dioxide fiber reinforced aluminum oxide aerogel composite material
The invention provides a preparation method of a nano silicon dioxide fiber reinforced aluminum oxide aerogel composite material. The preparation method comprises the following steps: preparing an aluminum sol prefabricated solution by using water, an alcohol solvent and inorganic aluminum salt; adding methyl ethylene oxide to prepare aluminum sol; adding a nano silicon dioxide fiber skeleton reinforcing material to prepare composite aluminum gel; carrying out solvent replacement on the aged composite aluminum gel on the basis of a tertiary butanol and water mixed solution displacer; based on a freeze-drying method, vacuum freeze-drying is conducted on the composite aluminum gel subjected to solvent replacement, and then the nano-silica fiber reinforced aluminum oxide aerogel composite material is obtained.The method has the advantages of being low in cost, simple in process, low in energy consumption, high in safety, high in product quality, capable of achieving industrial production and the like; the popularization and industrial application of the silicon dioxide fiber composite aluminum oxide aerogel and the composite material thereof can be promoted.
本发明提供了一种纳米二氧化硅纤维增强氧化铝气凝胶复合材料的制备方法，包括用水、醇溶剂、无机铝盐配置铝溶胶预制液；加入甲基环氧乙烷制成铝溶胶；加入纳米二氧化硅纤维骨架增强材料制成复合铝凝胶；基于叔丁醇水混合溶液置换剂，对陈化后的复合铝凝胶进行溶剂置换；基于冷冻干燥方法，对溶剂置换后的复合铝凝胶进行真空冷冻干燥后，获得纳米二氧化硅纤维增强氧化铝气凝胶复合材料，本发明提供的方法具有成本低廉、工艺简单、能耗低、安全性高、产品质量高且可进行产业化生产等优点，其可促进二氧化硅纤维复合氧化铝气凝胶及其复合材料的推广及产业化应用。
Preparation method of nano silicon dioxide fiber reinforced aluminum oxide aerogel composite material
The invention provides a preparation method of a nano silicon dioxide fiber reinforced aluminum oxide aerogel composite material. The preparation method comprises the following steps: preparing an aluminum sol prefabricated solution by using water, an alcohol solvent and inorganic aluminum salt; adding methyl ethylene oxide to prepare aluminum sol; adding a nano silicon dioxide fiber skeleton reinforcing material to prepare composite aluminum gel; carrying out solvent replacement on the aged composite aluminum gel on the basis of a tertiary butanol and water mixed solution displacer; based on a freeze-drying method, vacuum freeze-drying is conducted on the composite aluminum gel subjected to solvent replacement, and then the nano-silica fiber reinforced aluminum oxide aerogel composite material is obtained.The method has the advantages of being low in cost, simple in process, low in energy consumption, high in safety, high in product quality, capable of achieving industrial production and the like; the popularization and industrial application of the silicon dioxide fiber composite aluminum oxide aerogel and the composite material thereof can be promoted.
本发明提供了一种纳米二氧化硅纤维增强氧化铝气凝胶复合材料的制备方法，包括用水、醇溶剂、无机铝盐配置铝溶胶预制液；加入甲基环氧乙烷制成铝溶胶；加入纳米二氧化硅纤维骨架增强材料制成复合铝凝胶；基于叔丁醇水混合溶液置换剂，对陈化后的复合铝凝胶进行溶剂置换；基于冷冻干燥方法，对溶剂置换后的复合铝凝胶进行真空冷冻干燥后，获得纳米二氧化硅纤维增强氧化铝气凝胶复合材料，本发明提供的方法具有成本低廉、工艺简单、能耗低、安全性高、产品质量高且可进行产业化生产等优点，其可促进二氧化硅纤维复合氧化铝气凝胶及其复合材料的推广及产业化应用。
Preparation method of nano silicon dioxide fiber reinforced aluminum oxide aerogel composite material
一种纳米二氧化硅纤维增强氧化铝气凝胶复合材料的制备方法
MA YU (Autor:in) / ZHANG HANG (Autor:in) / ZHU ZHENTING (Autor:in) / CHEN ZHE (Autor:in) / TANG JINCHEN (Autor:in) / LI QIANG (Autor:in)
28.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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