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首页> 外文期刊>RSC Advances >In situformation of Fe3O4/N-doped carbon coating on the surface of carbon fiber with improved electromagnetic wave-absorption property
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In situformation of Fe3O4/N-doped carbon coating on the surface of carbon fiber with improved electromagnetic wave-absorption property

机译：具有改进的电磁波吸收性能Fe3O4 / N掺杂碳涂层的碳涂层的情况

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摘要

Carbon fiber is an absorbing material with high strength, acid and alkali resistance, high temperature resistance, flexibility, and processability and plays an important role in the electromagnetic (EM) wave absorption of civil buildings and military equipment. However, its EM wave-absorption performance is poor because of its large complex permittivity and no magnetic loss ability. In this study, dopamine hydrochloride and FeCl(3)were used as precursors, and the Fe3O4/N-doped carbon coating was successfully grownin situon the surface of short carbon fiber (SCF)viadopamine deposition, autopolymerization, FeCl(3)solution immersion, and calcination at high temperature to improve its EM wave-absorption property. The obtained Fe3O4/N-doped carbon particles were uniformly attached to the SCF in the form of a thin layer to constitute a unique hierarchical structure. The Fe3O4/N-doped carbon coating/SCF displayed an excellent EM wave-absorption performance. An effective bandwidth of 8.64 GHz and lowest reflection loss of -31.38 dB at 3 mm were achieved because of the significant reduction in complex permittivity and improvement in complex permeability, wave impedance, and EM loss ability of the SCF. The Fe3O4/N-doped carbon coating is expected to show great potential in EM wave-absorption fields.
机译：碳纤维是吸收材料具有高强度，耐酸，耐碱，耐高低温性，柔韧性和可加工性并播放在电磁（EM）波民用建筑和军事装备的吸收具有重要作用。然而，它的电磁波吸收性能，因为它的大型复杂介电常数和无磁损耗的能力较差。在这项研究中，多巴胺盐酸盐和的FeCl（3）作为前体，和四氧化三铁/ N掺杂的碳涂层成功grownin situon短切碳纤维（SCF）viadopamine沉积，自聚合，的FeCl（3）溶液中浸泡的表面上，和煅烧在高温下，以提高其电磁波吸收特性。将所得到的四氧化三铁/ N掺杂的碳颗粒均匀地附着于SCF以薄层的形式构成了独特的分层结构。四氧化三铁/ N掺杂的碳涂层/ SCF显示优异的电磁波吸收性能。为3mm 8.64千兆赫的有效带宽和-31.38分贝最低反射损耗被由于在复磁导率，波阻抗，和SCF的EM损失能力在复介电常数和改善显著减少来实现的。四氧化三铁/ N掺杂的碳涂层预期显示很大的潜力在EM波吸收字段。

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  • 来源
    《RSC Advances》 |2020年第51期|共8页
  • 作者

    Sun Qilong; Ji Yue; He LiFen; Long Xiaoyun;

  • 作者单位

    Nantong Univ Coll Text &

    Clothing Nantong Peoples R China;

    Nantong Univ Coll Text &

    Clothing Nantong Peoples R China;

    Nantong Text &

    Silk Ind Technol Res Inst Nantong Peoples R China;

    Nantong Univ Coll Text &

    Clothing Nantong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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