Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hyperelastic aerogel and preparation method thereof
The invention discloses hyperelastic aerogel and a preparation method thereof, and belongs to the technical field of aerogel material preparation, the hyperelastic aerogel takes SiC nanowire aerogel or Si3N4 nanobelt aerogel as a raw material, a pyrolytic carbon layer with the thickness of about 60-140 nm is deposited on the surface of a SiC nanowire or a Si3N4 nanobelt in a chemical vapor deposition (CVD) mode, and the hyperelastic aerogel is prepared. The nanowires or the nanoribbons are welded together, and pyrolytic carbon nodes between the nanowires or the nanoribbons are fixed and cannot rotate. The obtained hyperelastic aerogel can be completely recovered under the compression strain reaching up to 80%, has excellent compression anti-fatigue performance, and has wide application prospects in the fields of aerospace and civil high-performance damping, sensors and the like.
本发明公开了一种超弹性气凝胶及其制备方法，属于气凝胶材料制备技术领域，所述超弹性气凝胶以SiC纳米线气凝胶或Si3N4纳米带气凝胶为原料，通过化学气相沉积(CVD)的方式，在SiC纳米线或Si3N4纳米带表面沉积一层约60～140nm厚的热解碳层，将纳米线或纳米带“焊接”起来，纳米线或纳米带之间的热解碳节点固定不可转动。所得到的超弹性气凝胶能够从高达80％的压缩应变下实现完全回复，且有着优异的压缩抗疲劳性能，在航空航天和民用高性能阻尼、传感器等领域有着广泛的应用前景。
Hyperelastic aerogel and preparation method thereof
The invention discloses hyperelastic aerogel and a preparation method thereof, and belongs to the technical field of aerogel material preparation, the hyperelastic aerogel takes SiC nanowire aerogel or Si3N4 nanobelt aerogel as a raw material, a pyrolytic carbon layer with the thickness of about 60-140 nm is deposited on the surface of a SiC nanowire or a Si3N4 nanobelt in a chemical vapor deposition (CVD) mode, and the hyperelastic aerogel is prepared. The nanowires or the nanoribbons are welded together, and pyrolytic carbon nodes between the nanowires or the nanoribbons are fixed and cannot rotate. The obtained hyperelastic aerogel can be completely recovered under the compression strain reaching up to 80%, has excellent compression anti-fatigue performance, and has wide application prospects in the fields of aerospace and civil high-performance damping, sensors and the like.
本发明公开了一种超弹性气凝胶及其制备方法，属于气凝胶材料制备技术领域，所述超弹性气凝胶以SiC纳米线气凝胶或Si3N4纳米带气凝胶为原料，通过化学气相沉积(CVD)的方式，在SiC纳米线或Si3N4纳米带表面沉积一层约60～140nm厚的热解碳层，将纳米线或纳米带“焊接”起来，纳米线或纳米带之间的热解碳节点固定不可转动。所得到的超弹性气凝胶能够从高达80％的压缩应变下实现完全回复，且有着优异的压缩抗疲劳性能，在航空航天和民用高性能阻尼、传感器等领域有着广泛的应用前景。
Hyperelastic aerogel and preparation method thereof
一种超弹性气凝胶及其制备方法
WANG HONGJIE (Autor:in) / LU DE (Autor:in) / ZHUANG LEI (Autor:in) / NIU MIN (Autor:in) / SU LEI (Autor:in) / PENG KANG (Autor:in)
15.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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