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Enhancement of microwave absorption of polyaniline–PbTiO3 composites prepared by using sodium dodecyl benzene sulfonoic acid

Published online by Cambridge University Press:  18 February 2013

Ameena Parveen  and
Aashis S. Roy
Ameena Parveen
Affiliation:
Department of Physics, Government First Grade College, Gurmitkal, Yadgir, 585214 Karnataka, India
Aashis S. Roy*
Affiliation:
Department of Materials Science, Gulbarga University, Gulbarga 585106, Karnataka, India
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Polyaniline (PANI)–PbTiO3 composites were prepared by using different inorganic and organic acids by in situ polymerization technique using sodium dodecyl benzene sulfonic acid as a surfactant. The structural analysis was studied by using x-ray diffraction, and it was found that PANI is amorphous in nature. The scanning electron microscopy studies reveal that they are agglomerated and irregular, and size of these grains increase by increasing the amount of PANI with different organic and inorganic acids. The real part of complex permittivity (εʹ) and imaginary part of complex permittivity (εʹʹ) and the real part of the permeability (μ′) are studied at X-band frequency where (εʹ) and (εʹʹ) decreas with increase in frequencies, whereas μ′ increases with increase in X-band frequency and exhibits a maximum value of 0.87 at the resonance frequency of 9–11 GHz of 30 wt% PbTiO3 in PANI matrix. Reflection loss peak of 30 wt% of PANI–PbTiO3 composites is 28.6 dB at 10.8 GHz, which may be attributed to the maximum reflection of the microwave power for the particular doping concentration.

Keywords

polyaniline compositestangent losspermittivitypermeabilityreflection loss
Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 6 , 28 March 2013 , pp. 840 - 847
Copyright
Copyright © Materials Research Society 2013

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References

REFERENCES

Lakshmi, K., John, H., Mathew, K.T., Joseph, R., and George, K.E.: Microwave absorption, reflection and EMI shielding of PU–PANI composite. Acta Mater. 57, 371 (2009).CrossRefGoogle Scholar
Singh, A.P., Kumar, S.A., Amita, C., and Dhawan, S.K.: Conduction mechanism in polyaniline-flyash composite material for shielding against electromagnetic radiation in X-band & Ku band. AIP Adv. 1, 022147 (2011).CrossRefGoogle Scholar
Yang, C.C., Gung, Y.J., Shih, C.C., Hung, W.C., and Wu, K.H.: Synthesis, infrared and microwave absorbing properties of (BaFe12O19+BaTiO3)/polyaniline composite. J. Magn. Magn. Mater. 323, 933 (2011).CrossRefGoogle Scholar
Ting, T.H., Jau, Y.N., and Yu, R.P.: Microwave absorbing properties of polyaniline/multi-walled carbon nanotube composites with various polyaniline contents. Appl. Surf. Sci. 258, 3184 (2012).CrossRefGoogle Scholar
Du, L., Du, Y., Li, Y., Wang, J., Wang, C., Wang, X., Xu, P., and Han, X.: Surfactant-assisted solvothermal synthesis of Ba(CoTi)xFe12-2xO19 nanoparticles and, enhancement in microwave absorption properties of polyaniline. J. Phys. Chem. C 114, 19600 (2010).CrossRefGoogle Scholar
Jianjun, H., Yuping, D., Jia, Z., Hui, J., Shunhua, L., and Weiping, L.: γ- MnO2/polyaniline composites: Preparation, characterization, and applications in microwave absorption. Physica B 406, 1950 (2011).CrossRefGoogle Scholar
Han, X. and Wang, Y-S.: Studies on the synthesis and microwave absorption properties of Fe3O4/polyaniline FGM. Phys. Scr. 29, 335 (2007).CrossRefGoogle Scholar
Singh, K., Ohlan, A., Bakhshi, A.K., and Dhawan, S.K.: Synthesis of conducting ferromagnetic nanocomposite with improved microwave absorption properties. Mater. Chem. Phys. 119, 201 (2010).CrossRefGoogle Scholar
Narayan, H., Alemu, H., and Iwuoha, E.: Synthesis, characterization and conductivity measurements of polyaniline and polyaniline/fly-ash composites. Phys. Status Solidi A 203, 3665 (2006).CrossRefGoogle Scholar
Guerin, F., Varadan, V.K., and Varadan, V.V: Microwave activity of ceramic chiral composites. J. Wave Mater. Interact. 7, 279 (1992).Google Scholar
Mandal, A. and Das, C.K.: Microwave absorbing properties of DBSA- doped polyaniline/BaTiO3-Ni0.5Zn0.5Fe2O4 nanocomposites. J. Mater. Sci. Res. 1, 45 (2012).Google Scholar
Yu, J.: Photocatalytic activity and characterization of the sol-gel derived Pb- doped TiO2 thin films. J. Sol-Gel Sci. Technol. 24, 39 (2002).CrossRefGoogle Scholar
Li, Q., Zhang, C., and Li, J.: Photocatalysis and wave-absorbing properties of polyaniline/TiO2 microbelts composite by in situ polymerization method. Appl. Surf. Sci. 257, 944 (2010).CrossRefGoogle Scholar
Kumar, S.A., Singh, A.P., Saini, P., Khatoon, F., and Dhawan, S.K.: Synthesis, charge transport studies, and microwave shielding behavior of nanocomposites of polyaniline with Ti-doped a-Fe2O3. J. Mater. Sci. 47, 2461 (2012).CrossRefGoogle Scholar
He, Z., Fang, Y., Wang, X., and Pang, H.: Microwave absorption properties of PANI/CIP/Fe3O4 composites. Synth. Met. 161, 420 (2011).CrossRefGoogle Scholar
Abbas, S.M., Dixit, A.K., Chatterjee, R., and Goel, T.C.: Complex permittivity and microwave absorption properties of BaTiO3–polyaniline composite. Mater. Sci. Eng., B 123, 167 (2005).CrossRefGoogle Scholar
Roy, A.S., Anilkumar, K.R., and Ambika Prasad, M.V.N.: Synthesis and characterization of elongated chain-like nanostructure polyaniline in ice cube. Polym. Polym. Compos. 19, 625 (2011).CrossRefGoogle Scholar
Roy, A.S., Anilkumar, K.R., and Ambika Prasad, M.V.N.: Core-shell method of synthesis, characterizations and ac conductivity studies of polyaniline/n-TiO2 composites. J. Appl. Polym. Sci. 121, 675 (2011).CrossRefGoogle Scholar
Yusoff, N., Abdullah, M.H., Ahmad, S.H., Jusoh, S.F., and Mansor, A.A.: Electromagnetic and absorption properties of some microwave absorbers. J. Appl. Phys. 92, 876 (2002).CrossRefGoogle Scholar
Wing, Z.N., Wang, B., and Halloran, J.W.: Permittivity of porous titanate dielectrics. J. Am. Ceram. Soc. 89, 3696 (2006).CrossRefGoogle Scholar
Roy, A.S., Anilkumar, K.R., and Ambika Prasad, M.V.N.: Studies of AC conductivity and dielectric relaxation behavior of CdO doped nanometric polyaniline. J. Appl. Poly. Sci. 23, 1928 (2011).Google Scholar
Yan, L.G., Wang, J.B., Han, X.H., Ren, Y., Liu, Q.F., and Li, F.S.: Enhanced microwave absorption of Fe nanoflakes after coating with SiO2 nanoshell. Nanotechnology 21, 095708 (2010).CrossRefGoogle ScholarPubMed
Ohlan, A., Singh, K., Chandra, A., and Dhawan, S.K.: Microwave absorption properties of conducting polymer composite with barium ferrite nanoparticles in 12.4–18 GHz. Appl. Phys. Lett. 93, 053114 (2008).CrossRefGoogle Scholar
Tabellout, M.: The influence of the polymer matrix on the dielectric and electrical properties of conductive polymer composites based on polyaniline. J. Non-Cryst. Solids 351, 2835 (2005).CrossRefGoogle Scholar
Yang, C.C., Gung, Y.J., Shih, C.C., Hung, W.C., and Wu, K.H.: Synthesis, infrared and microwave absorbing properties of (BaFe12O19 + BaTiO3)/polyaniline composite. J. Magn. Magn. Mater. 323, 933 (2011).CrossRefGoogle Scholar
Guo, J., Duan, Y., Liu, L., Chen, L., and Liu, S.: Electromagnetic and microwave absorption properties of carbonyl-iron/Fe91Si9 composites in gigahertz range. J. Electromagn. Anal. Appl. 3, 140 (2011).Google Scholar