Abstract
In this study, we have prepared highly conductive polypropylene (PP)/poly(ethylene terephthalate) (PET) blends with high electromagnetic interference (EMI) shielding performances by incorporating very low contents of thermally reduced graphene (TRG) through melt compounding method. Based on scanning electron microscopy and transmission electron microscopy images, the blends exhibited co‐continuous morphologies in which TRG nanosheets had been thermodynamically and kinetically driven into PET polymer resulting in a double percolated structure. Both direct current and AC electrical conductivities of the blend nanocomposites significantly increased with TRG addition and a dramatically low electrical percolation threshold of 0.08 vol% was achieved. Electromagnetic properties were investigated by measuring complex permittivity and complex permeability of the samples in the X‐band frequency range (8.2–12.4 GHz). The EMI shielding effectiveness considerably increased with increasing TRG loading and depending on the frequency, a shielding effectiveness of 40–60 dB was obtained with incorporation of only 2 vol% of TRG. POLYM. COMPOS., 40:E1461–E1469, 2019. © 2018 Society of Plastics Engineers
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
