دانلود مقاله ISI انگلیسی شماره 57778
ترجمه فارسی عنوان مقاله

نانوکامپوزیت های آهن اپوکسی / گرافن / کربنیل مغناطیسی و الکتریکی هدایت کننده برای محافظت در برابر تداخل الکترومغناطیسی کارآمد

عنوان انگلیسی
Magnetic and electrically conductive epoxy/graphene/carbonyl iron nanocomposites for efficient electromagnetic interference shielding
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
57778 2015 8 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Composites Science and Technology, Volume 118, 30 October 2015, Pages 178–185

چکیده انگلیسی

Magnetic and electrically conductive epoxy nanocomposites are fabricated by compounding thermally reduced graphene oxide (TGO) and magnetic carbonyl iron (CI) using a solvent-free and efficient centrifugal mixing method. The addition of TGO sheets not only forms an interconnected conducting network within the epoxy matrix, but also prevents the aggregation of heavy CI components. The incorporation of CI components leads to obvious increases in permeability, magnetic loss, and electromagnetic interference (EMI) shielding properties. Among different shapes of CI components, spherical CI particles result in the best EMI shielding performance. The ternary nanocomposites exhibit excellent shielding effectiveness (>36 dB within 9.5–12 GHz) and a maximum value of ∼40 dB at 11.7 GHz, much higher than that (∼20 dB) of epoxy/TGO nanocomposite with the same content of TGO. Wave absorption loss is confirmed to be the main EMI shielding mechanism for the epoxy nanocomposites. The high EMI shielding performance makes the epoxy nanocomposites promising for EMI shielding applications.