Abstract
The utilization of fly ash (FA) and the treatment of electromagnetic pollution have become important contents of current environmental management. A new type of electromagnetic waves absorption material was obtained by using fly ash magnetic beads (FAB), nickel powders (Ni) and polyaniline (PANI) in this study. A novel core–shell PANI@FAB/Ni composite was successfully prepared by interfacial polymerization of PANI on the surfaces of FAB and Ni. The structure, composition, morphology, magnetic property and electromagnetic parameters of composites were investigated in detail. Due to the synergistic effect of several different loss mechanisms, which improved attenuation capacity and impedance matching, the optimal reflection loss of PANI@FAB/Ni at 5.52 GHz was −67.07 dB (thickness of 5.48 mm). Meanwhile, the effective absorption bandwidth of PANI@FAB/Ni is 4.24 GHz with a thin matching thickness of 1.98 mm. This novel electromagnetic waves absorption material made of FAB has potential commercial prospects.
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.
