Preparation, characterization and microwave absorption performance of fibrous polyaniline layered on BaSrFe12O19 nanoparticles

Fiber shape Polyaniline coated on BaSrFe12O19 nanoparticles were synthesized successfully in the presence of DBSA as dopant and template. The products were characterized using SEM, FT-IR, EDX, DRS, UV-visible, XRD, VSM analyses. The DC conductivity was measured using four-wire-technique and finally vector network analyzer was employed to determine the ability of composites in microwave absorption at the range of 8-12 GHz. Results proven that coexistence of magnetic phase with conducting phase results in enhancing electromagnetic wave absorption, and a minimum reflection loss of −15.1 dB at the frequency of 10.2 GHz was obtained

Keywords:

Conducting polymers , Polyaniline fibers , M-type ferrite , microwave absorption