Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In-situ whisker reinforced aerogel heat insulation composite material and preparation method thereof
The invention discloses an in-situ whisker reinforced aerogel heat insulation composite material and a preparation method thereof, and the aerogel heat insulation composite material with high specific strength is prepared through fiber etching, whisker modification of fibers, sol preparation and dipping, aging, supercritical drying and high-temperature sintering. Aluminum oxide-silicon oxide composite aerogel is used for modifying ceramic fibers, whiskers are generated on the surfaces of the fibers in situ, the interface bonding force between the aerogel and the fibers is increased, and the mechanical property of the aerogel heat insulation composite material is remarkably improved.
本发明公开了一种原位晶须强化的气凝胶隔热复合材料及其制备方法，本发明通过纤维刻蚀、晶须改性纤维、溶胶配制与浸渍、老化、超临界干燥、高温烧结制备得到高比强度的气凝胶隔热复合材料，以氧化铝‑氧化硅复合气凝胶对陶瓷纤维进行改性，在纤维表面原位生成晶须，增大气凝胶与纤维的界面结合力，显著提高气凝胶隔热复合材料的力学性能。
In-situ whisker reinforced aerogel heat insulation composite material and preparation method thereof
The invention discloses an in-situ whisker reinforced aerogel heat insulation composite material and a preparation method thereof, and the aerogel heat insulation composite material with high specific strength is prepared through fiber etching, whisker modification of fibers, sol preparation and dipping, aging, supercritical drying and high-temperature sintering. Aluminum oxide-silicon oxide composite aerogel is used for modifying ceramic fibers, whiskers are generated on the surfaces of the fibers in situ, the interface bonding force between the aerogel and the fibers is increased, and the mechanical property of the aerogel heat insulation composite material is remarkably improved.
本发明公开了一种原位晶须强化的气凝胶隔热复合材料及其制备方法，本发明通过纤维刻蚀、晶须改性纤维、溶胶配制与浸渍、老化、超临界干燥、高温烧结制备得到高比强度的气凝胶隔热复合材料，以氧化铝‑氧化硅复合气凝胶对陶瓷纤维进行改性，在纤维表面原位生成晶须，增大气凝胶与纤维的界面结合力，显著提高气凝胶隔热复合材料的力学性能。
In-situ whisker reinforced aerogel heat insulation composite material and preparation method thereof
一种原位晶须强化的气凝胶隔热复合材料及其制备方法
PENG FEI (Autor:in) / GAO QINGFU (Autor:in) / YANG BIN (Autor:in) / LI YONG (Autor:in) / XIONG XI (Autor:in)
20.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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