Application of PDC Analysis to Identify Effect of Electrical Tracking on Conductivity of LLDPE-NR Nanocomposite

Abstract:

Polymeric nanocomposites are widely used for high voltage outdoor insulating application due to their good electrical performance. Recently, SiO₂, TiO₂ and MMT nanofillers are being used as filler because there are listed as main nanofiller commonly used in electrical engineering. Natural rubber (NR) was used because the nature of the interphase is found to affect viscoelasticity and it develops several interphases with the Linear Low-Density Polyethylene (LLDPE) matrix. One of the problems associated with outdoor polymeric insulators is tracking of the surface which can directly influence the reliability of the insulator. This paper presents the outcome of an experimental study to determine the conductivity level of the LLDPE-NR compound, filled with different amount of SiO2, TiO2 and MMT nanofiller using Polarization and Depolarization Current (PDC) measurement technique. LLDPE and NR with the ratio composition of 80:20 were selected as a base polymer. Results show that different compositions as well as the surface physical conditions affect the PDC measurement results.

• Periodical: Applied Mechanics and Materials (Volume 785)
• Pages: 325-329
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.785.325
• Online since: August 2015
• Authors: N.A.M. Jamail, M.A.M. Piah, Nor Asiah Muhamad, Hanafiah Kamarden, Qamarul Ezani Kamarudin
• Keywords: Depolarization Current, Electrical Tracking, Hv Insulations, LLDPE Nanocomposite, Polarization Current

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