2017
DOI: 10.1063/1.4979107
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Abstract: Incorporating inorganic nanoparticles (NPs) into polymer matrices provides a promising solution for suppressing space charge effects that can lead to premature failure of electrical insulation used in high voltage direct current engineering. However, realizing homogeneous NP dispersion is a great challenge especially in high-molecular-weight polymers. Here, we address this issue in crosslinked polyethylene by grafting matrix-compatible polymer brushes onto spherical colloidal SiO 2 NPs (10-15 nm diameter) to o… Show more

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Cited by 57 publications
(51 citation statements)
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“…In the case of XLPE-OS-silica and XLPE-APTES-MgO nanocomposites, nano 5 wt% and nano 3 wt% has the lowest space charge accumulation, respectively. It is reported elsewhere [11][12][13][14] that nanofiller inclusion leads to the introduction of deeper traps and high mobility of charges inside the sample. Due to increased mobility in case of XLPE-OS-silica and XLPE-APTES-MgO nanocomposites as shown in Figs.…”
Section: Space Chargementioning
confidence: 97%
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“…In the case of XLPE-OS-silica and XLPE-APTES-MgO nanocomposites, nano 5 wt% and nano 3 wt% has the lowest space charge accumulation, respectively. It is reported elsewhere [11][12][13][14] that nanofiller inclusion leads to the introduction of deeper traps and high mobility of charges inside the sample. Due to increased mobility in case of XLPE-OS-silica and XLPE-APTES-MgO nanocomposites as shown in Figs.…”
Section: Space Chargementioning
confidence: 97%
“…The literature reports that metal-oxide nanofillers such as silica, MgO marginally reduce the space charge accumulation in XLPE. Hence, they are selected for this study [11][12][13][14][15][16][17][18][19]. As-received OS-modified silica nanofillers of diameter 7-14 nm and MgO nanofillers (unmodified) with the diameter of ∼30 nm were supplied by Reinste Nano Ventures Pvt.…”
Section: Materials and Preparationsmentioning
confidence: 99%
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“…Recently, polymer nanocomposite insulating materials have attracted much attention because of their special properties 14,15 . Many studies have reported that doping a small amount of nanoparticles such as MgO, 16,17 SiO 2 , 18,19 ZnO 20,21 and Al 2 O 3 22,23 into polymers can improve the electrical properties of insulation, such as enhancing resistance to surface erosion, 24 improving volume resistivity 7 and suppressing space charge accumulation 25 . Zhang et al .…”
Section: Introductionmentioning
confidence: 99%
“…In this case the recent developments in high voltage direct current (HVDC) technology have led to new and more stringent requirements on the performance of insulating materials. Great efforts have thus been undertaken in surface modification of nano-filler particles to improve their dispersibility and distributivity, concurrently affecting the compatibility at particle–polymer interface, passivating surface defects and impeding moisture absorption of the fillers [4,5,6,7,8]. In this context, it is desirable to better understand the impact of nano-filler surface modification on the electrical transport as well as mechanical properties of composite materials for electric power applications, especially in silicone rubber-based composites.…”
Section: Introductionmentioning
confidence: 99%