Effect on the EMI Shielding Properties of Cobalt Ferrites and Coal-Fly-Ash Based Polymer Nanocomposites

被引：46

作者：

Gulzar, Noreen ^{[1
]}

Zubair, Khadija ^{[2
]}

Shakir, M. Fayzan ^{[2
]}

Zahid, Muhammad ^{[1
]}

Nawab, Yasir ^{[2
]}

Rehan, Z. A. ^{[2
]}

机构：

[1] Univ Agr Faisalabad, Dept Chem, Faisalabad, Pakistan

[2] Natl Text Univ, Dept Polymer Engn, Faisalabad, Pakistan

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2020年 / 33卷 / 11期

关键词：

Thermoplastic polyurethane; Cobalt ferrites; Coal fly ash; EMI shielding; CARBON NANOTUBE; POLYANILINE; COMPOSITES; FILM;

D O I：

10.1007/s10948-020-05608-w

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanocomposites composed of cobalt ferrite (CoFe2O4), thermoplastic polyurethane (TPU), and fly ash were fabricated to enhance electromagnetic interference (EMI) shielding. The change in electrical conductivity because of increasing the concentrations of fly ash and cobalt ferrite was estimated, and the increase in electrical conductivity was observed in results. Electromagnetic interference (EMI) shielding is the key application area of these nanocomposites in microwave frequency ranging from 0.1 to 20 GHz and in near infrared (NIR) region of wavelength which ranges from 700 to 2500 nm. Maximum DC conductivity achieved was 5.54*10(-7) S/cm. Transmission observance in the NIR region was lower than 0.5%. Highest EMI shielding of 35 dB was achieved at a wide range of frequency from 0.1 to 8 GHz.

引用

页码：3519 / 3524

页数：6

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