Abstract
This paper investigates partial discharge (PD) characteristics of crosslinked polyethylene (XLPE) nanocomposites for unmodified, agglomerated, and Octylsilane-modified silica nanofillers (nano 1, 2, 3, 4, 5, 10 wt %) case. The surface modification of nanofiller helps to reduce the PD formation marginally. Octylsilane surface-modified XLPE/silica nano 3 wt % exhibits the lowest PD activity with highest discharge inception voltage and breakdown voltage. Also, the issue of change in the polymer structure due to the addition of nanofillers is reported here. The differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA), fourier transform infrared (FTIR), and contact angle measurement study conducted suggests that the addition of nanosilica leads to the change in the melting point, thermal degradation temperature, heat of fusion, bonding structure and the contact angle of the polymer, respectively. These structural changes are explained with the supporting theory.
Highlights
Field of nanocomposite electrical insulations has gained a substantial attention of researchers in recent years.[1,2,3] The inclusion of nanofiller to insulation material leads to marginal improvement in its dielectric, electrical, thermal properties etc.[4,5,6,7,8] problem of agglomeration of nanofillers has questioned its reliability and application
This paper investigates partial discharge (PD) characteristics of crosslinked polyethylene (XLPE) nanocomposites for unmodified, agglomerated, and Octylsilane-modified silica nanofillers case
The differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA), fourier transform infrared (FTIR), and contact angle measurement study conducted suggests that the addition of nanosilica leads to the change in the melting point, thermal degradation temperature, heat of fusion, bonding structure and the contact angle of the polymer, respectively
Summary
Field of nanocomposite electrical insulations (nanofiller + electrical insulation) has gained a substantial attention of researchers in recent years.[1,2,3] The inclusion of nanofiller to insulation material leads to marginal improvement in its dielectric, electrical, thermal properties etc.[4,5,6,7,8] problem of agglomeration (or aggregation) of nanofillers has questioned its reliability and application. Abstract This paper investigates partial discharge (PD) characteristics of crosslinked polyethylene (XLPE) nanocomposites for unmodified, agglomerated, and Octylsilane-modified silica nanofillers (nano 1, 2, 3, 4, 5, 10 wt %) case.
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