Impact of Nanoparticles Functionalization on Partial Discharge Activity within PVC/SiO2 Nanocomposites

Nagat M.K. Abdel-Gawad, Diaa-Eldin A. Mansour, M. M.F. Darwish, Adel Z. El Dein, Hanaa M. Ahmed, Matti Lehtonen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

11 Citations (Scopus)


Partial discharges (PDs) diagnostics are necessary to monitor and detect any abnormal conditions such as; impurities or cavities during the manufacturing process of insulating materials of power cables. This paper aims to enhance PD activity of polyvinyl chloride (PVC) with the insertion of chemically functionalized silicon dioxide (SiO2) nanoparticles through using the solution casting method. The surface functionalization of SiO2 was performed using amino silane as a coupling agent after activating their surfaces with methanesulfonic acid. Then, PVC/SiO2 nanocomposites, with different loadings of nanoparticles (0.5, 3%), were synthesized with the aid of ultra-sonication for better dispersion of nanoparticles. After that, the internal discharge measurements were performed using the traditional needle-plane configuration with the help of phase resolved partial discharge analyzer (PRPDA) that analyzes the statistical characteristics of PDs pattern. It is found that the PD activity of PVC/SiO2 amino-functionalized nanocomposite samples that represented by discharge magnitude, inception voltage, extinction voltage, and the PD generation rate was enhanced compared to that of the PVC/SiO2 un-functionalized nanocomposites or neat PVC samples. This is because the addition of SiO2 nanoparticles was increased the trapping sites inside the insulating material and the generation rate of initial electrons will be reduced, resulting in further decrease in PD activities.

Original languageEnglish
Title of host publicationProceedings of the IEEE 2nd International Conference on Dielectrics, ICD 2018
Number of pages4
ISBN (Electronic)9781538663899
Publication statusPublished - 19 Sep 2018
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Dielectrics - Budabest, Hungary
Duration: 1 Jul 20185 Jul 2018
Conference number: 2


ConferenceInternational Conference on Dielectrics
Abbreviated titleICD


  • Cable insulation
  • Functionalization of nanoparticle
  • Internal partial discharge
  • Polymer nanocomposites
  • PVC


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