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首页> 外文会议>Annual World Conference on Carbon >THE IMPROVED PROPERTIES OF NANOCARBON FIBERS PREPARED FROM ELECTROSPUN CARBON NANOTUBES/ POLYACRYLONITRILE HYBRID NANOFIBERS
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THE IMPROVED PROPERTIES OF NANOCARBON FIBERS PREPARED FROM ELECTROSPUN CARBON NANOTUBES/ POLYACRYLONITRILE HYBRID NANOFIBERS

机译：由电纺碳纳米管/聚丙烯腈杂交纳米纤维制备的纳米碳纤维的改进性能

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摘要

As the constituent element for high-performance composite structures in aerospace, defense, and other industries, carbon fibers prepared from polyacrylonitrile (PAN) precursor fibers possess high strength-to-weight ratio and superior stiffness. However, commercialized PAN-based carbon fibers (3-7 GPa) can hardly reach theoretical tensile strength (180 GPa), due to many types of structural imperfections in the precursor and carbon fibers. Since the mechanical strength of carbon fibers increases as the diameter of precursor fibers decreases when produced under comparable conditions, the convenient technique of "electrospinning" is adopted to produce PAN precursor nanofibers. Carbon nanotubes (CNTs) with high tensile modulus, good thermal and electrical conduction, etc, have been incorporated into electrospun PAN nanofibers to reinforce their mechanical properties, as well as enhance thermal stability, electric conductivity and other functional properties.
机译：作为航空航天，防御等行业的高性能复合结构的组成元件，由聚丙烯腈（PAN）前体纤维制备的碳纤维具有高强度重量比和优异的刚度。然而，由于前体和碳纤维中的许多结构缺陷，商业化的泛基碳纤维（3-7GPa）几乎不会达到理论抗拉强度（180GPa）。由于当前体纤维的直径增加时，由于在可比条件下产生的直径减小，因此采用了“静电纺丝”的方便技术来生产PAN前体纳米纤维。具有高拉伸模量，良好的热和导通等的碳纳米管（CNT）已掺入Electrom淘南纳米纤维中以加强其机械性能，以及增强热稳定性，导电性和其他功能性。

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