Effect of water absorption on dielectric spectrum of nanocomposites

R. Kochetov*, I. A. Tsekmes, P. H.F. Morshuis, J.J. Smit, A.J. Wanner, F. Wiesbrock, W. Kern

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

6 Citations (Scopus)


Many researchers have reported an improvement of the properties of polymer dielectrics by introducing nanofillers. However, the influence of ambient conditions and sample storage under different conditions are often not taken into account. The epoxy matrix itself is a polar polymer susceptible to water absorption, and the presence of hydrophilic nanofillers such as silica will enhance the uptake of moisture from the environment. The dielectric response both of neat epoxy resin and an epoxy-based nanocomposite under an electrical stress greatly depends on the amount of absorbed water. This study investigates the effect of water absorbance on the dielectric spectrum of epoxy-silica nanocomposites containing different concentrations of nanoparticles.

Original languageEnglish
Title of host publication34th Electrical Insulation Conference, EIC 2016
Place of PublicationPiscataway, NJ
Number of pages4
ISBN (Electronic)978-1-4673-8706-4
Publication statusPublished - 2016
EventEIC 2016: 34th Electrical Insulation Conference - Hotel Boneventure, Montreal, Qc, Canada
Duration: 19 Jun 201622 Jun 2016


ConferenceEIC 2016
CityMontreal, Qc


  • complex permittivity
  • dielectric spectroscopy
  • epoxy
  • nanosilica
  • water absorption


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