Abstract

This paper presents the preparation of a new epoxy nanocomposite of functionalized graphene oxide (FGO) and iron pentacarbonyl [Fe(CO)₅] (IPC) as electromagnetic (EM) absorber. In this EM absorption (EMA) compound, FGO has been used to increase the electrical absorption, while by adding IPC, its magnetic absorption capacity has been improved. Graphene oxide (GO) was functionalized in three steps with imidazole (C₃H₄N₂) and 3-bromo-1-phenyl-1-propene (3-phenylallyl bromide). The resultant FGO was of an ionic liquid structure, and it was determined using Raman spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and field emission scanning electron microscopy. FGO–IPC/epoxy resin nanocomposite (FIERC) was produced using 10–40 wt.% with variable thickness as an EM absorber material. The FIERC with 30 wt.% and 2 mm thickness showed great EMA in the X-band frequency (8–12 GHz), and the minimum reflection loss (R_L) is displayed in 9–10 GHz (− 80 dB).

中文翻译：

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基于新型功能化氧化石墨烯五羰基铁和离子液体的聚合物纳米复合材料的制备及电磁波吸收性能

摘要

本文介绍了一种新型的功能化氧化石墨烯（FGO）和五羰基铁[Fe（CO）₅ ]（IPC）作为电磁（EM）吸收剂的环氧纳米复合材料的制备。在这种EM吸收（EMA）化合物中，FGO已用于增加电吸收，而通过添加IPC，其磁吸收能力得到了改善。氧化石墨烯（GO）用咪唑（C ₃ H ₄ N ₂）和3-溴-1-苯基-1-丙烯（3-苯基烯丙基溴）。所得的FGO具有离子液体结构，并且使用拉曼光谱，傅立叶变换红外光谱，X射线衍射，X射线光电子光谱，透射电子显微镜和场发射扫描电子显微镜进行测定。FGO–IPC /环氧树脂纳米复合材料（FIERC）使用10–40 wt。％的可变厚度作为EM吸收剂材料生产。。用30％（重量）和2米毫米厚的FIERC在X波段频率（8-12千兆赫）表现出极大的EMA，和最小反射损耗（ř_大号）被显示在9-10千兆赫（ - 80分贝）。