Electromagnetic interference shielding properties of ferrocene-based polypyrrole/carbon material composites
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Electromagnetic interference shielding properties of ferrocene‑based polypyrrole/carbon material composites Ahsan Nazir1 · Haojie Yu1 · Li Wang1 · Yang He2 · Quan Chen2 · Bilal Ul Amin1 · Di Shen1 Received: 19 December 2019 / Accepted: 19 August 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Ferrocene-based polypyrrole (PPyFc) composites containing multi-walled carbon nanotube (MWCNT), reduced graphene oxide (RGO) and carbon black (CB) have been prepared by chemical oxidative polymerization. The prepared PPyFc/ MWCNT, PPyFc/RGO and PPyFc/CB composites have been characterized by SEM, TEM, FTIR, XRD, XPS and TGA. Electrical conductivity of the PPyFc/MWCNT, PPyFc/RGO and PPyFc/CB composites has been tested by a typical fourprobe method. Furthermore, the electromagnetic interference shielding effectiveness (EMI SE) of the PPyFc/CB, PPyFc/ RGO and PPyFc/MWCNT composites has been measured through a coaxial method in the S-band frequency range. The EMI SE achieved for PPyFc/CB, PPyFc/RGO and PPyFc/MWCNT composites was − 11.08 dB, − 11.44 dB and − 23.74 dB, respectively. Keywords Ferrocene-based polypyrrole · Composites · Electromagnetic interference shielding properties
1 Introduction The extensive use of electronic and communication gadgets such as laptops, tablets, cell phones, and smart television, generates severe electromagnetic (EM) radiation [1]. The EM radiation has a harmful effect on the environment and performance of commercial, civil, military appliances [2–4]. Moreover, the continued EM radiations may also interfere with the operation of sensitive electronic equipment [5–7]. These problems can be reduced and can save society and precious electronic equipment from such a hazardous effect of EM radiations using highly effective shielding materials [8]. To deal with these critical problems, traditional metalbased shielding materials are by far the most common materials for electromagnetic interference (EMI) shielding [9], * Haojie Yu [email protected] * Li Wang [email protected] 1
State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Bull Group Co., Ltd., No. 88 Rixian North Road, CiDong Binhai District, Cixi City, Ningbo 315318, Zhejiang, People’s Republic of China
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owing to their excellent electrical conductivity. However, they suffered from a lot of disadvantages such as expensive processing, high mass density and complexity in manufacturing techniques [10]. On the other hand, most common eco-friendly polymer-based composites containing conductive fillers have gained enormous attention as EMI shielding materials from both the scientific community and industry [11], because of their remarkable properties like easy-tofabricate, excellent electrical, thermal and EMI shielding properties [12]. These properties are essential to provide promising applications of EMI shielding field especially in the areas of electronics, aerospace, aircraft, wearable devices and aut
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