Synthesis and characterization polymer nanocomposite of PANI/TiO2(np)-Fe+3 for microwave application

In this paper we report the composite of nanotubular polyaniline (PANI), titanium and iron for microwave absorption. Nanotubular structure of PANI is synthesized by the chemical polymerization of aniline. The diameter of the PANI (Nanotubular) is found to be ranging from 120-140 nm. Here in our experiment we observed resonance-antiresonance phenomenon in the permittivity and permeability of the material. The polymer nanocomposite of PANI/TiO2(np)-Fe+3 has the minimum reflection loss of -38 dB (99.99%) at the frequency of 10.80 GHz for the thickness 3.5 mm. The XRD results show the formation of different crystalline planes for the TiO2(np)-Fe+3 nanocomposite. The particle size of the TiO2(np)-Fe+3 is found to be ranging from 114.8 to 132.1 nm the FESEM result. The composite can also be used for the metamaterial applications.