Microwave absorption properties of lightweight absorber based on Fe50Ni50-coated poly(acrylonitrile) microspheres and reduced graphene oxide composites
Microwave absorption properties of lightweight absorber based on Fe50Ni50-coated poly(acrylonitrile) microspheres and reduced graphene oxide composites
复制标题
Fe50Ni50包覆聚丙烯腈微球和还原氧化石墨烯复合材料轻质吸波体的微波吸收性能
DOI：
10.1016/j.jmmm.2016.04.014
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发表时间：
2016
影响因子：
2.7
通讯作者：
Tang Yushan
中科院分区：
文献类型：
--
作者：
Zhang Bin;Wang Jun;Wang Junpeng;Hun Siqi;Zhang Bin;Tang Yushan
本文提出了一种制备表面改性Fe 50 Ni 50包覆的聚丙烯腈微球（PANS@SMF）、还原氧化石墨烯（RGO）和环氧树脂轻质复合材料的方法。采用X射线衍射（XRD）、扫描电子显微镜（SEM）、X射线光电子能谱（XPS）、振动样品磁强计（VSM）和矢量网络分析仪（VNA）对样品进行了表征。利用阻抗匹配条件和电磁波衰减特性对复合材料的反射损耗性能进行了研究。与纯PANS@SMF和RGO复合材料相比，杂化复合材料的−10 dB吸收带宽和最小RL均有所提高。在10 GHz至14.5 GHz范围内，小于−10 dB的带宽几乎为4.5 GHz，匹配厚度为2.5 mm。杂化复合材料的密度在0.25-0.34 g/cm 3的范围内。因此，混杂复合材料可以被认为是一种潜在的轻质微波吸收剂。
In this paper, we proposed a facile method to obtain the lightweight composites consisting of surface modified Fe50Ni50-coated poly(acrylonitrile) microspheres (PANS@SMF), reduced graphene oxide (RGO) and epoxy resin. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometry (VSM) and vector network analyzer (VNA). Impedance matching condition and electromagnetic wave attenuation characteristic were used for the reflection loss (RL) performance of the composites. Compared with pure PANS@SMF and RGO composites, the −10 dB absorption bandwidth and the minimum RL of the hybrid composites were enhanced. The bandwidth less than −10 dB was almost 4.5 GHz in the range of 10 GHz to 14.5 GHz, with a matching thickness of 2.5 mm. The density of the hybrid composites was in the range of 0.25–0.34 g/cm3. Therefore, the hybrid composite can be considered as a potential lightweight microwave absorber.