Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight bearing multifunctional SiC aerogel composite material and preparation method thereof
The invention discloses a light-weight bearing multifunctional SiC aerogel composite material and a preparation method thereof.The light-weight bearing multifunctional SiC aerogel composite material comprises a carbon foam skeleton, a reinforced coating arranged on the surface of the carbon foam skeleton and aerogel arranged in pores of the carbon foam skeleton, the carbon foam skeleton is of a three-dimensional open-pore structure, and the carbon foam skeleton is of a three-dimensional open-pore structure. The aerogel is silicon carbide aerogel and is of a three-dimensional network structure, and the carbon foam skeleton and the aerogel are of a dual-network coupling nested structure. The lightweight bearing multifunctional SiC aerogel composite material is small in density and high in strength, the pore structure of the dual-network coupling nested structure inhibits air convection conduction, the heat insulation performance is excellent, the overall dielectric property of the material can be adjusted and controlled, incident absorption of electromagnetic waves can be achieved, and therefore wave absorption is achieved, and the stealth effect is achieved.
本申请公开了一种轻质承载多功能SiC气凝胶复合材料及其制备方法，所述轻质承载多功能SiC气凝胶复合材料包括碳泡沫骨架、设置于碳泡沫骨架表面的强化涂层和设置于碳泡沫骨架孔隙内的气凝胶，所述碳泡沫骨架为三维开孔结构，所述气凝胶为碳化硅气凝胶，并呈三维网状结构，所述碳泡沫骨架和气凝胶之间呈双网络耦合嵌套结构。本发明所述的轻质承载多功能SiC气凝胶复合材料密度小、强度高，双网络耦合嵌套结构的孔隙结构抑制空气对流传导，隔热性能优异，还可以调控材料整体的介电性能，可实现电磁波入射吸收，从而实现吸波，达到隐身效果。
Lightweight bearing multifunctional SiC aerogel composite material and preparation method thereof
The invention discloses a light-weight bearing multifunctional SiC aerogel composite material and a preparation method thereof.The light-weight bearing multifunctional SiC aerogel composite material comprises a carbon foam skeleton, a reinforced coating arranged on the surface of the carbon foam skeleton and aerogel arranged in pores of the carbon foam skeleton, the carbon foam skeleton is of a three-dimensional open-pore structure, and the carbon foam skeleton is of a three-dimensional open-pore structure. The aerogel is silicon carbide aerogel and is of a three-dimensional network structure, and the carbon foam skeleton and the aerogel are of a dual-network coupling nested structure. The lightweight bearing multifunctional SiC aerogel composite material is small in density and high in strength, the pore structure of the dual-network coupling nested structure inhibits air convection conduction, the heat insulation performance is excellent, the overall dielectric property of the material can be adjusted and controlled, incident absorption of electromagnetic waves can be achieved, and therefore wave absorption is achieved, and the stealth effect is achieved.
本申请公开了一种轻质承载多功能SiC气凝胶复合材料及其制备方法，所述轻质承载多功能SiC气凝胶复合材料包括碳泡沫骨架、设置于碳泡沫骨架表面的强化涂层和设置于碳泡沫骨架孔隙内的气凝胶，所述碳泡沫骨架为三维开孔结构，所述气凝胶为碳化硅气凝胶，并呈三维网状结构，所述碳泡沫骨架和气凝胶之间呈双网络耦合嵌套结构。本发明所述的轻质承载多功能SiC气凝胶复合材料密度小、强度高，双网络耦合嵌套结构的孔隙结构抑制空气对流传导，隔热性能优异，还可以调控材料整体的介电性能，可实现电磁波入射吸收，从而实现吸波，达到隐身效果。
Lightweight bearing multifunctional SiC aerogel composite material and preparation method thereof
一种轻质承载多功能SiC气凝胶复合材料及其制备方法
YE XINLI (Autor:in) / XU JIANQING (Autor:in) / MA XIAOMIN (Autor:in) / ZHANG JUNXIONG (Autor:in)
07.03.2023
Patent
Elektronische Ressource
Chinesisch
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