Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hyperelastic carbon aerogel composite material and preparation method thereof
The invention discloses a hyperelastic carbon aerogel composite material and a preparation method thereof.The preparation method comprises the following steps that a substance A and deionized water are mixed and subjected to ultrasonic treatment, dispersion liquid is obtained, the dispersion liquid and a graphene oxide aqueous solution are mixed, liquid to be dried is prepared through a freeze-drying method or a hydrothermal method or a method of adding ethylenediamine in the hydrothermal process, and the hyperelastic carbon aerogel composite material is obtained. The preparation method comprises the following steps: directionally freezing a to-be-dried liquid for 10-15 hours to obtain wood fiber gel, in a vacuum environment, immersing the wood fiber gel into a SiBCN precursor solution for 30-60 minutes, taking out the wood fiber gel, drying, carrying out heat preservation on the wood fiber gel in an inert gas environment at 250-350 DEG C for 4-5 hours, and then carrying out heat preservation at 950-1050 DEG C for 2-3 hours to obtain the hyperelastic carbon aerogel composite material. The pressure intensity of the hyperelastic carbon aerogel composite material during deformation is more than four times that of the non-compounded SiBCN, and the rebound rate is more than 85% when the deformation quantity is 10%.
本发明公开了一种超弹性碳气凝胶复合材料及其制备方法，制备方法包括以下步骤：将物质A和去离子水混合，超声，得到分散液，将分散液和氧化石墨烯水溶液混合，使用冻干法、水热法或水热过程中加入乙二胺法制得待干燥液体，将待干燥液体定向冷冻10～15h，得到木纤维凝胶，在真空环境下，将木纤维凝胶浸入SiBCN前驱体溶液中30～60min，取出木纤维凝胶，干燥，将木纤维凝胶在惰性气体环境下于250～350℃保温4～5h，再于950～1050℃保温2～3h，得到超弹性碳气凝胶复合材料，本发明超弹性碳气凝胶复合材料在形变时的压强是未复合SiBCN的4倍以上，形变量为10％时回弹率在85％以上。
Hyperelastic carbon aerogel composite material and preparation method thereof
The invention discloses a hyperelastic carbon aerogel composite material and a preparation method thereof.The preparation method comprises the following steps that a substance A and deionized water are mixed and subjected to ultrasonic treatment, dispersion liquid is obtained, the dispersion liquid and a graphene oxide aqueous solution are mixed, liquid to be dried is prepared through a freeze-drying method or a hydrothermal method or a method of adding ethylenediamine in the hydrothermal process, and the hyperelastic carbon aerogel composite material is obtained. The preparation method comprises the following steps: directionally freezing a to-be-dried liquid for 10-15 hours to obtain wood fiber gel, in a vacuum environment, immersing the wood fiber gel into a SiBCN precursor solution for 30-60 minutes, taking out the wood fiber gel, drying, carrying out heat preservation on the wood fiber gel in an inert gas environment at 250-350 DEG C for 4-5 hours, and then carrying out heat preservation at 950-1050 DEG C for 2-3 hours to obtain the hyperelastic carbon aerogel composite material. The pressure intensity of the hyperelastic carbon aerogel composite material during deformation is more than four times that of the non-compounded SiBCN, and the rebound rate is more than 85% when the deformation quantity is 10%.
本发明公开了一种超弹性碳气凝胶复合材料及其制备方法，制备方法包括以下步骤：将物质A和去离子水混合，超声，得到分散液，将分散液和氧化石墨烯水溶液混合，使用冻干法、水热法或水热过程中加入乙二胺法制得待干燥液体，将待干燥液体定向冷冻10～15h，得到木纤维凝胶，在真空环境下，将木纤维凝胶浸入SiBCN前驱体溶液中30～60min，取出木纤维凝胶，干燥，将木纤维凝胶在惰性气体环境下于250～350℃保温4～5h，再于950～1050℃保温2～3h，得到超弹性碳气凝胶复合材料，本发明超弹性碳气凝胶复合材料在形变时的压强是未复合SiBCN的4倍以上，形变量为10％时回弹率在85％以上。
Hyperelastic carbon aerogel composite material and preparation method thereof
超弹性碳气凝胶复合材料及其制备方法
LIU SHAN (Autor:in) / GONG XIAOPENG (Autor:in) / WANG SIHUI (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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