Liu Yaodong, Kumar Satish
School of Materials Science and Engineering, Georgia Institute of Technology , 801 Ferst Drive NW, MRDC-1, Atlanta, Georgia 30332-0295, United States.
ACS Appl Mater Interfaces. 2014 May 14;6(9):6069-87. doi: 10.1021/am405136s. Epub 2014 Feb 12.
Carbon nanotubes (CNTs) are regarded as ideal filler materials for polymeric fiber reinforcement due to their exceptional mechanical properties and 1D cylindrical geometry (nanometer-size diameter and very high aspect ratio). The reported processing conditions and property improvements of CNT reinforced polymeric fiber are summarized in this review. Because of CNT polymer interaction, polymer chains in CNTs' vicinity (interphase) have been observed to have more compact packing, higher orientation, and better mechanical properties than bulk polymer. Evidences of the existence of interphase polymers in composite fibers, characterizations of their structures, and fiber properties are summarized and discussed. Implications of interphase phenomena on a broader field of fiber and polymer processing to make much stronger materials are now in the early stages of exploration. Beside improvements in tensile properties, the presence of CNTs in polymeric fibers strongly affects other properties, such as thermal stability, thermal transition temperature, fiber thermal shrinkage, chemical resistance, electrical conductivity, and thermal conductivity. This paper will be helpful to better understand the current status of polymer/CNT fibers, especially high-performance fibers, and to find the most suitable processing techniques and conditions.
由于其优异的机械性能和一维圆柱形几何结构（纳米级直径和非常高的长径比），碳纳米管（CNTs）被视为聚合物纤维增强的理想填充材料。本文综述了碳纳米管增强聚合物纤维的报道加工条件和性能改进情况。由于碳纳米管与聚合物的相互作用，已观察到碳纳米管附近（界面相）的聚合物链比本体聚合物具有更紧密的堆积、更高的取向度和更好的机械性能。总结并讨论了复合纤维中界面相聚合物存在的证据、其结构表征和纤维性能。界面相现象对制造更强材料的更广泛纤维和聚合物加工领域的影响目前正处于探索初期。除了拉伸性能的提高外，聚合物纤维中碳纳米管的存在还强烈影响其他性能，如热稳定性、热转变温度、纤维热收缩率、耐化学性、导电性和热导率。本文将有助于更好地了解聚合物/碳纳米管纤维，特别是高性能纤维的现状，并找到最合适的加工技术和条件。
