Cailiao gongcheng (Mar 2018)

Preparation and Performance of Resin-based Fe Nanoparticles/Carbon Fibers Microwave Absorbing Composite Plates

  • ZHOU Yuan-liang,
  • SHAH Syed,
  • ZHANG Li,
  • MUHMMAD Javid,
  • DUAN Yu-ping,
  • DONG Xing-long

DOI
https://doi.org/10.11868/j.issn.1001-4381.2016.000848
Journal volume & issue
Vol. 46, no. 3
pp. 41 – 47

Abstract

Read online

A series of Fe NPs/CFs/ER nanocomposite plates were prepared by using Fe nanoparticles as microwave absorbent, the surface modification of as-prepared Fe nanoparticles was carried out by using silane coupling agents (KH-550), carbon fibers were used to enhance the reflection of electromagnetic waves inside and mechanical properties. The results show that microwave absorption of nanocomposite plates increases with increasing of mass percentage of Fe nanoparticles and carbon fibers,their gradient concentration results in resonance phenomena in specific frequency region.The microwave absorption property is anisotropic, the properties of at the vertical direction of carbon fibers towards incident wave are better than the parallel case, the minimum reflectivity peak value of the nanocomposites with 30%(mass fraction, the same as below) of Fe NPs and 5.52% of CFs reaches -26.8dB at 4.9GHz with the matching thickness of 4.56mm.CFs can maintain the bending properties of nanocomposites effectively, the bending strength of the nanocomposite with 30% Fe NPs is just lower than that with 0% Fe NPs by 5.81%.

Keywords