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Frequency‐dependent electromagnetic parameters of PPM40, PPM60, PPM80, and PPM100/paraffin composites: a) real part of permittivity ε′, b) imaginary part of permittivity ε″, and c) dielectric loss tangent tan δ ε . d) Cole–Cole plots of PPM40/60/80/100 samples. e–h) Schematic illustration of probable microwave absorption mechanisms for the as‐prepared PPM foams. Schematic illustration of i) microwave absorbing model and j) electromagnetic shielding model of the 3D porous foams.
