| 碳纳米管掺杂SiO2气凝胶隔热材料的制备与性能表征 |
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| 引用本文： | 张贺新 赫晓东 李垚. 碳纳米管掺杂SiO2气凝胶隔热材料的制备与性能表征[J]. 稀有金属材料与工程, 2007, 36(A01): 567-569 |
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| 作者姓名： | 张贺新 赫晓东 李垚 |
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| 作者单位： | 哈尔滨工业大学复合材料与结构研究所,黑龙江哈尔滨150001 |
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| 基金项目： | 国家863项目（2004AA763020）及新世纪优秀人才计划基金项目（NCET）资助 |
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| 摘 要： | 以正硅酸乙酯（TEOS）和碳纳米管（CNTs）为原料，采用溶胶-凝胶法和常压干燥法制备不同碳纳米管（CNTs）含量的SiO2气凝胶隔热材料。采用DET、SEM、XRD等测试方法考察了添加CNTs对SiO2气凝胶比表面积、孔结构特征和密度的影响。结果表明：添加CNTs不仅能够增强SiO2气凝胶的强度，而且能够在很大程度上提高气凝胶的比表面积，使孔结构分布更加均匀。
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| 关 键 词： | SiO2气凝胶 碳纳米管 孔结构 比表面积 |
| 文章编号： | 1002-185X（2007）S1-0567-03 |
| 修稿时间： | 2007-02-15 |
Synthesis and Characterization of SiO2 Thermal Insulation Aerogel Doped CNTs |
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| Zhang Hexin, He Xiaodong, Li Yao. Synthesis and Characterization of SiO2 Thermal Insulation Aerogel Doped CNTs[J]. Rare Metal Materials and Engineering, 2007, 36(A01): 567-569 |
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| Authors: | Zhang Hexin He Xiaodong Li Yao |
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| Affiliation: | Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | SiO2 aerogel doped CNTs with different contents were prepared using TEOS and CNTs as raw materials. The prepared aerogels doped with CNTs are characterized by DET, SEM and XRD. The results show that the CNTs dopants can reinforce the strength of SiO2 aerogel and the pores distributed uniformly compared to pure SiO2 aerogel. Moreover the specific surface areas are increased and the pore size is decreased due to the CNTs dopant. The tube diameter for CNT is increased and surrounded by gel particles which are attributed to the effect of surface adsorption for CNTs. |
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| Keywords: | SiO2 aerogel CNTs pore structure specific surface areas |
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