The effect of ZnO, Fe₃O₄ and graphene oxide nanostructures on the microwave absorbing properties of polystyrene composites

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• 作者：Behrouz Heidari ; Maryam Ansari&#8230
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：28
• 期：1
• 页码：1028-1037
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1573-482X
• 卷排序：28

文摘

In this study a series of polystyrene (PS) nanocomposites such as PS/ZnO, PS/Fe₃O₄ and PS/graphene oxide nanocomposites were prepared. The novelty of this work is comparing of three various semi-conductor zinc oxide, magnetic Fe₃O₄ and non-metallic conductive graphene oxide in reflection loss amount. The effect of different percentages of fillers and homogenizer speed on the electromagnetic wave absorption was also investigated. The morphology and particle size of the nanostructures and nanocomposites were examined by scanning electron microscopy. The electromagnetic wave absorption properties of nanocomposites were studied in the frequency range of 5–8 GHz using a vector network analyzer and finally their absorption properties were compared and analyzed. It was found that improving dispersion of nanoparticles resulting from increase in homogenizer speed leads to increase of absorption and band-width. The outcomes show that graphene oxide has substantial effect on absorption in compare with the other nanocomposite samples.