Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alumina aerogel composite material and preparation method thereof
The invention discloses an alumina aerogel composite material and a preparation method thereof, and belongs to the technical field of aerogel preparation. Comprising the following steps: adding opacifying agent particles into deionized water containing a surfactant, uniformly stirring to form an opacifying agent dispersion liquid, pre-dispersing the opacifying agent dispersion liquid into a fiber preform through an impregnation method, drying, and then carrying out alumina sol impregnation, gel aging and drying treatment to prepare the alumina aerogel composite material. According to the preparation method, the opacifying agent can be uniformly distributed in the composite material, the shielding effect of the composite material on infrared radiation is improved, the invention provides a complete preparation process of the aluminum oxide aerogel composite material, and the requirement of long-time use in an extremely high-temperature environment can be met.
本发明公开了一种氧化铝气凝胶复合材料及其制备方法，属于气凝胶制备技术领域。包括将遮光剂颗粒加入含有表面活性剂的去离子水中，搅拌均匀形成遮光剂分散液，将遮光剂分散液通过浸渍法预分散至纤维预制件中，烘干后，再进行氧化铝溶胶浸渍、凝胶老化和干燥处理，制备得到氧化铝气凝胶复合材料。本发明可使遮光剂均匀地分布在复合材料中，提高复合材料对红外辐射的遮挡效果，本发明提供了完整的氧化铝气凝胶复合材料制备工艺，能够满足在极端高温环境下长时间使用的要求。
Alumina aerogel composite material and preparation method thereof
The invention discloses an alumina aerogel composite material and a preparation method thereof, and belongs to the technical field of aerogel preparation. Comprising the following steps: adding opacifying agent particles into deionized water containing a surfactant, uniformly stirring to form an opacifying agent dispersion liquid, pre-dispersing the opacifying agent dispersion liquid into a fiber preform through an impregnation method, drying, and then carrying out alumina sol impregnation, gel aging and drying treatment to prepare the alumina aerogel composite material. According to the preparation method, the opacifying agent can be uniformly distributed in the composite material, the shielding effect of the composite material on infrared radiation is improved, the invention provides a complete preparation process of the aluminum oxide aerogel composite material, and the requirement of long-time use in an extremely high-temperature environment can be met.
本发明公开了一种氧化铝气凝胶复合材料及其制备方法，属于气凝胶制备技术领域。包括将遮光剂颗粒加入含有表面活性剂的去离子水中，搅拌均匀形成遮光剂分散液，将遮光剂分散液通过浸渍法预分散至纤维预制件中，烘干后，再进行氧化铝溶胶浸渍、凝胶老化和干燥处理，制备得到氧化铝气凝胶复合材料。本发明可使遮光剂均匀地分布在复合材料中，提高复合材料对红外辐射的遮挡效果，本发明提供了完整的氧化铝气凝胶复合材料制备工艺，能够满足在极端高温环境下长时间使用的要求。
Alumina aerogel composite material and preparation method thereof
一种氧化铝气凝胶复合材料及其制备方法
PENG FEI (Autor:in) / GAO QINGFU (Autor:in) / XIONG XI (Autor:in) / YANG BIN (Autor:in) / LI YONG (Autor:in)
09.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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