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Electromagnetic interference shielding effectiveness of ferrocene‐based polyimidazole/carbon material composites
Author(s) -
Nazir Ahsan,
Yu Haojie,
Wang Li,
Liu Jinhua,
Li Songbiao,
Amin Bilal Ul,
Naveed KaleemurRahman,
Khan Rizwan Ullah,
Khan Amin,
Usman Muhammad,
Elshaarani Tarig,
Uddin Md Alim
Publication year - 2020
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25521
Subject(s) - materials science , composite material , graphene , scanning electron microscope , carbon nanotube , electromagnetic shielding , thermogravimetric analysis , graphite , ferrocene , composite number , carbon black , oxide , electrochemistry , chemical engineering , electrode , nanotechnology , natural rubber , chemistry , engineering , metallurgy
Ferrocene‐based polyimidazole (PPIFc) composites containing multiwalled carbon nanotube (MWCNT), reduced graphene oxide (RGO), and carbon black (CB) were prepared by chemical oxidative polymerization, respectively. The prepared PPIFc/MWCNT, PPIFc/RGO, and PPIFc/CB composites were characterized by scanning electron microscope, transmission electron microscope, Fourier transform infrared, X‐ray diffraction, X‐ray photoelectron spectroscopy, and thermogravimetric analysis. The electrical conductive property of the PPIFc/MWCNT, PPIFc/RGO, and PPIFc/CB composites was tested by a four‐probe method. The electromagnetic interference (EMI) shielding properties of the composites were measured by a coaxial method in the 1 to 4.5 GHz. These PPIFc/MWCNT, PPIFc/RGO, and PPIFc/CB composites showed good EMI shielding performance and total shielding effectiveness (SE T ) for PPIFc/CB was −11.2 dB, PPIFc/RGO was −13.1 dB, and PPIFc/MWCNT was −25.4 dB by using 50 wt% of the composite in the paraffin wax.