Behaviour of Water Droplets Under the Influence of a Uniform Electric Field in Nanocomposite Samples of Epoxy Resin/TiO2

  • Α. Bairaktari Department of Electrical and Computer Engineering, Democritus University of Thrace, Greece
  • M. Danikas Department of Electrical & Computer Engineering, Democritus University of Thrace, Greece
  • X. Zhao Xi’an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an, China
  • Y. Cheng Xi’an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an, China
  • Y. Zhang Xi’an Jiaotong University, State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an, China
Volume: 3 | Issue: 5 | Pages: 511-515 | October 2013 |


In this paper nanocomposite samples of epoxy resin and TiO2 nanoparticles were investigated with water droplets on their surface. A uniform electric field was applied and the behaviour of the water droplets was observed. Parameters that were studied were the water conductivity, the droplet volume, the number of droplets and the droplet positioning with respect to (w.r.t.) the electrodes. All above mentioned parameters influence the flashover voltage of the samples. It is to be noted that – at least in some cases – the water droplet positioning w.r.t. the electrodes was more important in determining the flashover voltage than the droplet volume.

Keywords: flashover voltage, surface discharges, nanocomposites, uniform electric field, water droplet, water conductivity


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