Dielectric properties of silicone rubber based composites with nano-sized fillers


Ajay James Thomas
Nandini Gupta


Room Temperature Vulcanized Silicone Rubber (RTVSR) is one of the forms of silicone rubber used in outdoor insulating systems, usually in order to improve the pollution performance of ceramic insulation. RTV silicones are used to withstand mechanical and thermal stress. Introduction of nanosized particles inside RTVSR alters the dielectric properties of the polymer. In this work, we study the change in dielectric properties of silicone rubber on introduction of nanofillers. The dielectric properties investigated include complex permittivity and space charge accumulation. The nanofillers incorporated are alumina and barium titanate at 1% concentration (by volume). The nanofillers are mixed mechanically and by ultrasonication to obtain well dispersed nanocomposites.>p/p


How to Cite
James Thomas, A., & Gupta, N. (2017). Dielectric properties of silicone rubber based composites with nano-sized fillers. Power Research - A Journal of CPRI, 85–90. Retrieved from https://cprijournal.in/index.php/pr/article/view/140


  1. Rakesh Kumar, Nandini Gupta, “Tracking and surface degradation of barium titanate filled silicone rubber nanocomposites,”.
  2. IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), pp. 495-498, 2015,
  3. U. H. Nguyen I, A. Sylvestre I, P.Gonon I, S. Rowe, “Dielectric properties analysis of silicone Rubber” , 2004 International Conference on Solid Dielectrics”, Toulouse, France, July 5-9, 2004
  4. Chao Zhang and Gary C Stevens.” The Dielectric Response of Polar and Non PolarNanodielectrics”,IEEE Transactions on Dielectrics and Electrical Insulation Vol.15, No.2; April 2008
  5. N.Fuse et al.:Effects of Nanofiller Loading on the Molecular Motion and Carrier Transport In Polyamide.IEEE Transactions on Dielectrics and Electrical Insulation Vol.16, No.2; April 2009
  6. Xingyi Huang, Liyuan Xie, Ke Yang, Chao Wu, Pingkai Jiang,” Role of Interface in Highly Filled Epoxy/BaTiO3 Nanocomposites. Part I-Correlation between Nanoparticle Surface Chemistry and Nanocomposite Dielectric Property”, IEEE Transactions on Dielectrics and Electrical Insulation Vol. 21, No. 2, April 2014
  7. Parimal Maity “Dielectric Behaviour of Epoxy Resin based Composites with Nanosized Alumina Fillers”, PhD Thesis,Indian Institute of Technology Kanpur March, 2009
  8. Rakesh Kumar, HK Chakerwarti, Nandini Gupta, “Improvement of dielectric performance of Silicone rubber by incorporation of nano-sized fillers”, IEEE International WIE Conference on Electrical and Computer Engineering (WIECONECE), pp. 147-150, 2015