| 超临界干燥制备木材-SiO2气凝胶复合材料及其纳米结构 |
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| 引用本文： | 邱坚,李坚.超临界干燥制备木材-SiO2气凝胶复合材料及其纳米结构[J].东北林业大学学报,2005,33(3):3-4,28. |
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| 作者姓名： | 邱坚 李坚 |
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| 作者单位： | 东北林业大学,哈尔滨,150040;东北林业大学,哈尔滨,150040 |
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| 摘 要： | 采用溶胶-凝胶法和超临界干燥技术制备了木材-SiO2气凝胶，应用XRD、SEM、TFM等方法对气凝胶样品和木材-SiO2气凝胶复合材料的结构和物理性能进行了表征。结果表明：所制备SiO2气凝胶是连续网络的非晶态纳米多孔固体，其基本粒子的平均直径17～9．6nm，SiO2气凝胶与木材有良好的结合并保持木材的空隙结构。
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| 关 键 词： | 溶胶-凝胶法 超临界干燥技术 SiO2气凝胶 木材-SiO2气凝胶纳米复合材料 纳米结构 |
Preparation of Wood - Silica Aerogels Composites by Supercritical Drying Technique and Its Nano - structure |
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| Qiu Jian,Li Jian.Preparation of Wood - Silica Aerogels Composites by Supercritical Drying Technique and Its Nano - structure[J].Journal of Northeast Forestry University,2005,33(3):3-4,28. |
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| Authors: | Qiu Jian Li Jian |
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| Abstract: | Silica aerogels-wood was prepared by sol-gel process and supercritical drying technique. By means of XRD, SEM, TEM and some other experimental methods, the structure and physical property of silica aerogel-wood samples were primarily investigated. The result showed that the prepared silica aerogels were coherent, non-crystalline, nano-sized porous solids. The mean diameter of particles was about 17~96 nm. Silica aerogels compacted with wood very well and the porous structure of wood could be maintained. |
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| Keywords: | Sol-gel method Supercritical drying technique SiO_2-aerogel Wood-SiO_2-aerogel composites Nano-structure |
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