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首页> 外文期刊>Journal of the American Ceramic Society >Highly Dispersive Carbon Nanotube/Alumina Composites and their Electrospun Nanofibers
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Highly Dispersive Carbon Nanotube/Alumina Composites and their Electrospun Nanofibers

机译：高分散性碳纳米管/氧化铝复合材料及其电纺纳米纤维

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摘要

Noncovalent functionalization approach was used to make negatively charged carbon nanotubes (CNTs) suspension in water medium. Stable alumina/CNT sol solution was consequently formed by simple titration process, which allowed high dispersibility of CNTs in final composite powders and final CNT/alumina (CA) nanocomposites. Moreover, these CA composite powders were transformed to continuous composite fibers via electrospinning technique. Very significant shear stresses exerted on alumina were well recorded and reflected by shifts of X-ray diffraction peaks. The as-fabricated CA fibers possess a specific surface area 30 times larger than that of pure poly (acrylic acid) fibers. The axial alignment of CNTs observed in the composite fibers is promising for developing textured ceramics, and also for the study of the effect of orientation of fillers on the mechanical and functional properties.
机译：非共价官能化方法用于使带负电荷的碳纳米管（CNTs）悬浮在水介质中。因此，通过简单的滴定工艺即可形成稳定的氧化铝/ CNT溶胶溶液，从而使CNT在最终的复合粉末和最终的CNT /氧化铝（CA）纳米复合材料中具有较高的分散性。此外，通过电纺丝技术将这些CA复合粉末转变为连续的复合纤维。很好地记录了施加在氧化铝上的非常大的剪切应力，并通过X射线衍射峰的移动来反映。制成的CA纤维的比表面积比纯聚（丙烯酸）纤维大30倍。在复合纤维中观察到的CNT的轴向排列有望用于开发纹理化陶瓷，也可以用于研究填料取向对机械和功能特性的影响。

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  • 来源
    《Journal of the American Ceramic Society》 |2009年第11期|2583-2589|共7页
  • 作者

    Ping Lu; Qing Huang; Dongtao Jiang; Bin Ding; You-Lo Hsieh; Ilya A. Ovidko; Amiya Mukherjee;

  • 作者单位

    Fiber and Polymer Science, University of California, Davis, California 95616;

    Department of Chemical Engineering & Materials Science, University of California, Davis, California 95616;

    Department of Chemical Engineering & Materials Science, University of California, Davis, California 95616;

    Nanomaterials Research Center, Modern Textile Institute, Donghua University, Shanghai 200051, China;

    Fiber and Polymer Science, University of California, Davis, California 95616;

    Institute for Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg 199178, Russia;

    Department of Chemical Engineering & Materials Science, University of California, Davis, California 95616;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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