Synthesis of Fe3O4 polypyrrole polyaniline nanocomposites by in-situ method and their electromagnetic absorbing properties

الملخص EN

Fe3O4/PPy/PANI (Fe3O4/polypyrrole/polyaniline) nanocomposites with excellent microwave absorbing properties have been successfully synthesized and characterized systematically.

In detail, Fe3O4 nanoparticles were prepared via an environmental friendly, modified co-precipitation method.

Afterward, two conductive polymers, PPy and PANI, were deposited onto the surface of Fe3O4 nanoparticles by in-situ polymerization of pyrrole and aniline.

PPy and PANI was ‘‘glued” by the strong affinity between the carbonyl groups of PPy and the conjugated chains of PANI.

The obtained Fe3O4/PPy/PANI nanocomposites have been found to possess excellent microwave absorbing property with the absorption bandwidth of 10.7 GHz (6.7–17.4 GHz) and maximum reflection loss at 10.1 GHz (40.2 dB).

It proves that the combination of ultra-small Fe3O4 nanoparticles with two different conductive polymers have a great potential in the application of microwave absorbing materials