Microwave Absorption Properties of Polyaniline/Carbonyl Iron Composites

作者：Bahri-Laleh Naeimeh^*; Didehban Khadijeh; Yarahmadi Elham; Mirmohammadi Seyed Amin; Wang Guowei

来源：Silicon, 2018, 10(4): 1337-1343.

DOI：10.1007/s12633-017-9609-y

• Polyaniline
• Wave absorbing materials
• Composite
• Carbonyl iron

In this work, carbonyl iron (CI) containing polya-niline composites (PANI+CI) were prepared via in-situ polymerization of aniline in an aqueous solution containing different amounts of CI as the magnetic filler for the micro-wave absorbers. The incorporation of the magnetic powder to the PANI matrix was confirmed by X-ray diffraction (XRD), IR and SEM. Synthesized PANI+CI composite particles were subsequently added to an epoxy resin matrix to produce related R-PANI+CI composites. Study of thermal properties by thermogravimetric analysis revealed enhanced thermal stability of the composites. The electromagnetic-absorbing properties were studied by measuring the reflection loss in the frequency range of 8.0 to 12.0 GHz. The experimental results indicated that the electromagnetic wave absorbing properties of PANI+CI composites are dependent on the PANI/CI weight ratio. The good reflection loss of the composite at the optimum PANI/CI weight ratio of 1:6 suggests its potential applicability as a good radar absorber.

• 出版日期2018-7