| 多壁碳纳米管的改性及其复合材料的制备 |
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| 引用本文： | 许永.多壁碳纳米管的改性及其复合材料的制备[J].广州化工,2012(1):3-5,8. |
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| 作者姓名： | 许永 |
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| 作者单位： | 安徽理工大学材料科学与工程学院,安徽淮南232001 |
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| 基金项目： | 高性能陶瓷与超微结构国家重点实验室开放基金项目（SKL200809SIC）; 国家自然科学青年基金项目（51002002） |
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| 摘 要： | 用H2SO4/HNO3（体积比3∶1）对碳纳米管进行改性,结果研究表明：与原始碳纳米管相比,改性后的多壁碳纳米管的自身的分散性非常好,表面带有了更多的-OH和-COOH等官能团,碳纳米管在空气中的热稳定性明显下降,而且在碳酸氢铵与氨水和少量SDBS的混合溶液中分散稳定性更好。然后采用原位聚合的方法制备了多壁碳纳米管/碳酸铝铵复合材料,复合粉体的TEM和XRD表明改性后的多壁碳纳米管可以在碳酸铝铵粉体中进行良好的分散。
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| 关 键 词： | 多壁碳纳米管 改性 HNO3/H2SO4 氧化铝前躯体 |
Modification of Multiwall Carbon Nanotubes and Preparation of Multiwall Carbon Nanotubes/Alumina Precursor Composites |
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| XU Yong.Modification of Multiwall Carbon Nanotubes and Preparation of Multiwall Carbon Nanotubes/Alumina Precursor Composites[J].GuangZhou Chemical Industry and Technology,2012(1):3-5,8. |
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| Authors: | XU Yong |
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| Affiliation: | XU Yong(Institute of Material Science ＆ Engineering,Anhui University of Science ＆ Technology, AnHui Huainan 232001,China) |
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| Abstract: | A mixture of concentrated HNO3/H2SO4（3：1 by volume） was used to modify the multi-walled carbon nanotubes（MWCNTs）.The results indicated that compared with raw MWCNTs,the modified MWCNTs were well dispersed,there were more-OH and-COOH functional groups on the surface of the MWCNTs,the thermal stability of MWCNTs decreased largely in the air,and the modified MWCNTs can disperse uniformly in a mixture of saturated aqueous solution of NH4HCO3,NH3·H2O and little SDBS solution.After that,in-situ coating process was used to prepare MWCNTs/alumina precursor composites.The TEM and XRD of the composites powders indicated that the MWCNTs can disperse well in the alumina precursor powders. |
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| Keywords: | multi-walled carbon nanotubes modified HNO3/H2SO4 alumina precursor |
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