Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of silicon carbide aerogel
The invention discloses a preparation method of silicon carbide aerogel, and relates to the technical field of aerogel preparation, the preparation method of silicon carbide aerogel comprises the following steps: mixing a carbon skeleton precursor, a carbon source, a silicon source and a solvent to obtain a precursor suspension; freezing and drying the precursor suspension to obtain a green body; and sintering the green body to obtain the aerogel material, and carrying out primary annealing and secondary annealing on the aerogel material to obtain the silicon carbide aerogel. According to the technical scheme provided by the invention, the mechanical property of the prepared silicon carbide aerogel can be enhanced and improved, and the technical effect of integrating multiple functions of heat insulation, fire prevention and wave absorption is also achieved.
本发明公开了一种碳化硅气凝胶的制备方法，涉及气凝胶制备技术领域，所述碳化硅气凝胶的制备方法包括以下步骤：将碳骨架前驱体、碳源、硅源以及溶剂混合，得到前驱体悬浮液；将所述前驱体悬浮液进行冷冻、干燥，得到坯体；将所述坯体进行烧结，得到气凝胶材料；将所述气凝胶材料进行一次退火、二次退火，得到碳化硅气凝胶。本发明提供的技术方案能够达到使制得的碳化硅气凝胶不仅力学性能得到了强化提升，还实现了隔热、防火以及吸波多个功能的集成的技术效果。
Preparation method of silicon carbide aerogel
The invention discloses a preparation method of silicon carbide aerogel, and relates to the technical field of aerogel preparation, the preparation method of silicon carbide aerogel comprises the following steps: mixing a carbon skeleton precursor, a carbon source, a silicon source and a solvent to obtain a precursor suspension; freezing and drying the precursor suspension to obtain a green body; and sintering the green body to obtain the aerogel material, and carrying out primary annealing and secondary annealing on the aerogel material to obtain the silicon carbide aerogel. According to the technical scheme provided by the invention, the mechanical property of the prepared silicon carbide aerogel can be enhanced and improved, and the technical effect of integrating multiple functions of heat insulation, fire prevention and wave absorption is also achieved.
本发明公开了一种碳化硅气凝胶的制备方法，涉及气凝胶制备技术领域，所述碳化硅气凝胶的制备方法包括以下步骤：将碳骨架前驱体、碳源、硅源以及溶剂混合，得到前驱体悬浮液；将所述前驱体悬浮液进行冷冻、干燥，得到坯体；将所述坯体进行烧结，得到气凝胶材料；将所述气凝胶材料进行一次退火、二次退火，得到碳化硅气凝胶。本发明提供的技术方案能够达到使制得的碳化硅气凝胶不仅力学性能得到了强化提升，还实现了隔热、防火以及吸波多个功能的集成的技术效果。
Preparation method of silicon carbide aerogel
碳化硅气凝胶的制备方法
ZHANG HEPING (Autor:in) / CHENG XUDONG (Autor:in) / PAN YUELEI (Autor:in)
08.11.2024
Patent
Elektronische Ressource
Chinesisch
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