常压干燥法制备碳纤维增强型碳气凝胶

复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (9): 43-47.

常压干燥法制备碳纤维增强型碳气凝胶

谈娟娟^1,2, 孙超明^1,2, 杨立平^1,2, 陈锋³

1.特种纤维复合材料国家重点实验室,北京 102101;
2.北京玻钢院复合材料有限公司,北京 102101;
3.武汉理工大学材料科学与工程学院,湖北武汉 430070

收稿日期:2013-01-24 出版日期:2013-12-28 发布日期:2022-03-22
作者简介:谈娟娟(1983-),女,博士,主要从事树脂基复合材料方面的研究。
基金资助:
科研院所技术开发项目(2011EG132168)

CARBON FIBER REINFORCED CARBON AEROGELS PREPARED BY AMBIENT PRESSURE DRYING

TAN Juan-juan^1,2, SUN Chao-ming^1,2, YANG Li-ping^1,2, CHEN Feng³

1. State Key Laboratory of Advanced Fiber Composites, Beijing 102101, China;
2. Beijing Composite Materials Co., Ltd., Beijing 102101, China;
3. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Received:2013-01-24 Online:2013-12-28 Published:2022-03-22

摘要/Abstract

摘要： 在传统方法制备碳气凝胶的基础上,以常压干燥代替超临界干燥,成功制备了碳气凝胶CRFs以及碳纤维针刺毡增强型碳气凝胶CF/CRFs,并通过SEM、BET 测试方法对两者的内部微观结构进行了表征。制备的CRF具有典型的三维连续网络结构,催化剂含量不同影响了CRF的骨架颗粒和孔径大小。在CF/CRFs内部,碳纤维针刺毡和CRF能达到较好的复合效果,附着在纤维表面的CRF保持了纳米网络结构,但是纤维对CRF内部的骨架颗粒和孔径具有显著的影响,由力学分析得知碳纤维针刺毡的复合使CRF具有较好的抗弯和抗压性能。

关键词: 碳气凝胶, 碳纤维针刺毡, 常压干燥

Abstract: Carbon aerogels (CRFs) and carbon fiber spiked felt reinforced carbon aerogels (CF/CRFs) were successfully prepared by ambient pressure drying instead of supercritical drying based on conventional methods. The internal microstructure of them was characterized by SEM and BET. The CRFspossessed typical three-dimensional continuous network. The amount of catalyst controlled the size of the framework particles and the pore diameters. The carbon fiber and CRFsachieved a fine complex, and the CRFsadhered to the carbon fiber still kept nano-network structure. Whereas, the fiber obviously affected the size of the inner framework particles and pore diameter, while the flexural and compressive properties were greatly enhanced owning to the reinforcement of carbon fiber spiked felt characterized by the mechanical analysis.

Key words: carbon aerogels, carbon fiber spiked felt, ambient pressure drying

中图分类号:

谈娟娟, 孙超明, 杨立平, 陈锋. 常压干燥法制备碳纤维增强型碳气凝胶[J]. 复合材料科学与工程, 2013, 0(9): 43-47.

TAN Juan-juan, SUN Chao-ming, YANG Li-ping, CHEN Feng. CARBON FIBER REINFORCED CARBON AEROGELS PREPARED BY AMBIENT PRESSURE DRYING[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(9): 43-47.

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