Enhanced electromagnetic wave absorption of engineered epoxy nanocomposites with the assistance of polyaniline fillers

Abstract In this work, the engineered polyaniline (PANI)/epoxy composites reinforced with PANI-M (physical mixture of PANI spheres and fibers) exhibit significantly enhanced electromagnetic wave absorption performance mechanical property. Due to synergistic effect fillers different geometries, reflection loss 10.0 wt% PANI-M/epoxy could reach − 36.8 dB at 17.7 GHz. Meanwhile, properties (including tensile strength, toughness, flexural strength) PANI/epoxy were systematically studied. Compared pure epoxy, strength epoxy 2.0 was improved 86.2 MPa. Moreover, (PANI-S) fibers (PANI-F) prepared by chemical oxidation polymerization method interface method, respectively. The characterizations including scanning electron microscope, Fourier transform infrared spectra, X-ray diffraction applied analyze morphology crystal structures filler. This work provide guideline for preparation advanced nanocomposites pollution treatment. Graphical abstract