Abstract

AbstractThe present study reports the preparation of a ternary composite with enhanced shielding performance toward electromagnetic waves using in situ polymerization of aniline on fiber‐ferrite binary composite. The polymerization is carried out in a green medium lime juice, which acts as an efficient dopant. The composite is amalgamated with varying weight percentages of ferrite (ranging from 25% to 100%) while maintaining a constant weight percentage of fiber. The presence of the fiber in the binary and ternary composite could enhance the thermal stability of the material, highlighting its applicability in a wide range of temperatures. The DC conductivity, AC conductivity, and dielectric properties are investigated, revealing significant performance enhancements. The ternary composite demonstrates excellent conductivity in the range of 10−210−1 S/cm, attributed to the polaron/bi‐polaron interaction paradigm. Furthermore, the electromagnetic interference shielding, microwave absorption, and reflection capabilities of the composites are assessed within the frequency range of 8–12 GHz. The optimized composite, featuring aniline (0.4 M) and glass fiber with ferrite in a 1:1 ratio, exhibits an outstanding shielding value of 32 dB. These results point toward the potential of this ternary composite material as an effective shield against electromagnetic pollution.

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