A Novel Concept for Highly Oriented Carbon Nanotube Composite Tapes or Fibres with High Strength and Electrical Conductivity
A Novel Concept for Highly Oriented Carbon Nanotube Composite Tapes or Fibres with High Strength and Electrical Conductivity
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DOI：
10.1002/mame.200900151
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发表时间：
2009-11
影响因子：
3.9
通讯作者：
H. Deng;Rui Zhang;C. Reynolds;E. Bilotti;T. Peijs
中科院分区：
文献类型：
--
作者：
H. Deng;Rui Zhang;C. Reynolds;E. Bilotti;T. Peijs
描述了一种多功能聚合物纳米复合带（或纤维）的新概念，它结合了高刚度和强度、良好的电性能和碳纳米管（CNTs）的低渗透阈值。该概念基于双组分胶带（或纤维）结构，由高度定向的聚合物芯和导电聚合物复合材料（CPC）表皮组成，该表皮基于熔化温度低于核心的聚合物，可以通过动态渗透过程对这些表皮进行热退火，从而提高导电性，同时保留芯和胶带（或纤维）的特性。经退火处理后，高拉伸双组分导电带CPC表面的渗透阈值可从5.3 wt.-%降至1.1 wt.-%。
A new concept is described for the creation of multifunctional polymer nanocomposite tapes (or fibres) that combines high stiffness and strength with good electrical properties and a low percolation threshold of carbon nanotubes (CNTs). The concept is based on a bicomponent tape (or fibre) construction consisting of a highly oriented polymer core and a conductive polymer composite (CPC) skin based on a polymer with a lower melting temperature than the core, enabling thermal annealing of these skins to improve conductivity through a dynamic percolation process while retaining the properties of the core and hence those of the tape (or fibre). The percolation threshold in the CPC skins of the highly drawn conductive bicomponent tapes could be decreased from 5.3 to 1.1 wt.-% after annealing.