Dielectric Properties of Composites of Polypropylene with Zno-TiO2 Core-Shell Nanoparticles


Affiliations

  • Sathyabama Institute of Science and Technology, Department of Physics, Chennai, Tamil Nadu, 600119, India

Abstract

Composites of polypropylene with different weight percentages of ZnO-TiO2 core-shell nanoparticles were prepared by the combination of solution and mixture melting methods. Dielectric properties of polypropylene composite films were studied at frequencies ranging from 50 Hz to 5 MHz at four different temperatures (313, 333, 353, and 373 K). It is observed that the dielectric constant reduces quickly in the low-frequency range followed by a near frequency independent behavior above 1 KHz. The dielectric properties of composites at low frequency can be explained by interfacial polarization or Maxwell-Wagner-Sillars effect. It is also observed that the dielectric constant reaches the maximum value at 3 wt% of ZnO-TiO2, which is the percolation threshold of nanocomposite. As the weight percentage of ZnO-TiO2 increases beyond the percolation threshold up to 7%, the dielectric constant of the nanocomposites decreases. The dielectric loss of the composites follows the similar trend with frequency as the dielectric constant. A sharp increase in the dielectric loss of the nanocomposite observed near the percolation threshold is due to leakage current produced by the formation of conductive network by ZnO-TiO2 core-shell nanoparticles. Further, peaks in the loss tangent observed for the nanocomposite systems indicating the appearance of a relaxation process. These relaxations peaks were shifted to higher frequencies as the particle content increased, since relaxation processes were influenced by the interfacial polarization effect which generated electric charge accumulation around the ZnO-TiO2 core-shell nanoparticles.

Keywords

Dielectric Properties, Film Capacitor Application, Nanocomposites, Percolation Threshold, Polypropylene Matrix, ZnO-TiO2 Core-Shell Nanoparticles

Subject Discipline

Materials Science

Full Text:

References

C. S. Reddy and C. K. Das, J. Appl. Polymer Sci.,102, 2117 (2006). https://doi.org/10.1002/app.24131

G. Z. Papageorgiou, D. S. Achilias, D. N. Bikiaris and G. P. Karayannidis, Thermochim. Acta., 247, 117, (2005). https:// doi.org/10.1016/j.tca.2004.09.001

O. H. Lin, H. M. Akil and Z. A. M. Ishak, Polymer. Compos., 30, 1693 (2009). https://doi.org/10.1002/pc.20744

P. B.Leng, H. M. Akil and O. H. Lin, J. Reinforc. Plast. Compos. 26, 761 (2007). https://doi.org/10.1177/0731684407076711

O. H. Lin, Z. A. M. Ishak and H. M. Akil,Mater. Des., 30/3, 748 (2009). https://doi.org/10.1016/j.matdes.2008.05.007

J.Jordan, K. I. Jacob, R. Tannenbaum, M. A. Sharaf and I. Jasiuk, Mater. Sci. Eng.,393, 1 (2005). https://doi.org/10.1016/j.msea.2004.09.044

M. Avella, F. Bondioli, V. Cannillo, Emilia Di Pace, M. E. Errico, A. M. Ferrari, B. Focher and M. Malinconico, Comp. Science and Tech., 66, 886 (2006).

J. Vera-Agullo, G. Gloria-Pereira, H. Varela-Riz, J. L. Gonzalez and I. Martin-Gullon, Comp. Science and Tech., 69, 1521 (2009). https://doi.org/10.1016/j.compscitech.2008.11.032

H. Bao, Z. Guo and J. Yu, Chin. J. Polymer Sci., 27, 393 (2009). https://doi.org/10.1142/S0256767909004059

H. Xia, Q. Wang, K. Li and G. H. Hu, J. Appl. Polymer Sci, 93, 378 (2004). https://doi.org/10.1002/app.20435

K. Prashantha, J. Soulestin, M. F. Lacrampe, M. Claes, G. Dupin and P. Krawczak, eXPRESS Polym. Lett., 2, 35 (2008).

Yong Tang, Yuan Hu, Lei Song, RuowenZong, ZhouGui, Zuyao Chen and Weicheng Fan, Polymer Degrad Stabil, 82, 127 (2003). https://doi.org/10.1016/S01413910(03)00173-3

P. Maiti, P. H. Nam, M. Okamoto, N. Hasegawa and A. Usuki, Macromolecules, 35, 2042 (2002). https://doi.org/10.1021/ma010852z

D. J. Sharmila, J. Brijitta and R. Sampathkumar, J. Surface Sci. Technol. 33, 115 (2017). https://doi.org/10.18311/ jsst/2017/16187

P. Vlazan, D. H. Ursu, C. Irina-Moisescu, P. Sfirloaga and E. Rusu, Mater. Char., 101, 153 (2015). https://doi.org/10.1016/j.matchar.2015.01.017

V. Manthina, J. P. Correa Baena, G. Liu, and A. G. Agrios, J. Phys. Chem, 116, 23864 (2012). https://doi.org/10.1021/ jp304622d

A. Rakesh and S. Balakumar, J. Nanosci. Nanotech., 13, 370 (2013). https://doi.org/10.1166/jnn.2013.6730

Y. Dang, Y. Wang, Y. Deng, M. LI, Y. Zhang and Z. Zhang, Prog. in Nat. Science: Mat. International, 21, 216, (2011).

C. C. Ku and R. Liepins, ‘Electrical Properties of Polymers’, Hanserp (1987).

Z.‐M. Dang, L. Wang, Y. Yin, Q. Zhang and Q.‐Q. Lei. Adv. Mater., 19, 852 (2007). https://doi.org/10.1002/ adma.200600703

A. Patsidis, G. C. Psarras. eXPRESS Polym. Lett., 2, 718 (2008).

G. C. Psarras, E. Manolakaki, and G. M. Tsangaris, Compos. Appl. Sci. Manuf., 12, 1187 (2003). https://doi.org/10.1016/j.compositesa.2003.08.002

C. W. Nan, Y. Shen and J. Ma, Annu. Rev. Mater. Res., 40, 131 (2010). https://doi.org/10.1146/annurevmatsci070909-104529

S. Singha, and M. J. Thomas, IEEE Trans. Dielectr. Electr. Insul., 15, 12 (2008). https://doi.org/10.1109/TDEI.2008.4446731

Y. Deng, Y. Zhang, Y. Xiang, G. Wang and H. Xu, J. Mater. Chem., 19, 2058 (2009). https://doi.org/10.1039/b812652f

G. Tsangaris, N. Kouloumbi and S. Kyvelidis, Mater. Chem. Phys., 44, 245 (1996). https://doi.org/10.1016/02540584(96)80063-0

Y. Cherifi, A. Chaouchi, Y. Lorgoilloux, M. Rguiti, A. Kadri and C. Courtois. Process. and Apply. Ceramics, 10, 125 (2016). https://doi.org/10.2298/PAC1603125C

N. Shukla, V. Kumar and D. K. Dwivedi, J. of Non-oxide Glasses, 8, 47 (2016).


Refbacks

  • There are currently no refbacks.