Proceedings ArticleDOI
Effect of water absorption on dielectric properties of nano-silica/polyethylene composites
Ian L. Hosier,Matthew Praeger,A. F. Holt,Alun S. Vaughan,S.G. Swingler +4 more
- pp 651-654
TLDR
In this article, the effect of moisture content on the dielectric properties of polymer/nano-silica blends was investigated and it was found that the DC breakdown strength, electrical conductivity and complex permittivity were all strongly influenced by absorbed water.Abstract:
The effect of moisture content on the dielectric properties of polymer/nano-silica blends was investigated. It was found that the DC breakdown strength, electrical conductivity and complex permittivity were all strongly influenced by absorbed water. However, a control sample without nano-silica was largely unaffected by changes in moisture content. This has important implications for researchers and cable designers.read more
Citations
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Journal ArticleDOI
The Effects of Water on the Dielectric Properties of Silicon-Based Nanocomposites
TL;DR: In this paper, a series of polyethylene-based nanocomposites was prepared, utilizing silicon nitride or silicon dioxide (silica) nanopowders, and the effect of filler loading and conditioning (i.e., water content) on their morphology and electrical properties was examined.
Journal ArticleDOI
Introducing particle interphase model for describing the electrical behaviour of nanodielectrics
TL;DR: In this article, the role of an interphase layer within the boundaries of nanoparticles was investigated by filling an epoxy matrix with two types of surface-modified silicon nitride nanofiller.
Journal ArticleDOI
The effects of hydration on the DC breakdown strength of polyethylene composites employing oxide and nitride fillers
TL;DR: Particle dispersion, water absorption/desorption and electrical breakdown behavior were studied in a range of polyethylene composites having a common matrix morphology as mentioned in this paper, and three different conditioning routes (dry, ambient and wet) were used to vary the absorbed water content.
Proceedings ArticleDOI
The effects of surface hydroxyl groups in polyethylene-silica nanocomposites
TL;DR: In this paper, the surface chemistry of silica nanoparticles is modified by processing them at high temperature, which removes hydroxyl groups from the surface of the filler particles, leaving siloxane groups which are stable at room temperature.
Journal ArticleDOI
Electrical Breakdown Properties of Clay-Based LDPE Blends and Nanocomposites
TL;DR: In this paper, a series of LDPE nanocomposites containing different amount of organomodified montmorillonite (clay) with and without compatibilizer have been prepared by means of melt compounding.
References
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Journal ArticleDOI
Dielectric properties of epoxy based nanocomposites for high voltage insulation
TL;DR: In this paper, the role of space charge and interfaces in epoxy polymer with micro, nano and micro + nano silica fillers has been evaluated for their electrical performance in high voltage insulation applications.
Journal ArticleDOI
On the space charge and DC breakdown behavior of polyethylene/silica nanocomposites
TL;DR: In this paper, the authors investigated the space charge dynamics in silica-based polyethylene nanocomposites and found that the incorporation of nanosilica into polyylene results in a significant amount of homocharge development near both electrodes.
Journal ArticleDOI
On the dielectric response of silica-based polyethylene nanocomposites
TL;DR: In this article, the dielectric response of silica-based polyethylene nanocomposites was studied by spectroscopy and the results indicated that nanocom composites absorb significantly more water than unfilled polyethylenes, with the consequence that both permittivity and loss tangent increase with increasing duration of water immersion.
Journal ArticleDOI
Characterization of Nanosilica-Filled Epoxy Composites for Electrical and Insulation Applications
TL;DR: In this paper, the results of nano- silica (SiO2)-filled epoxy composites with different loadings and their electrical, thermal, mechanical, and free-volume properties characterized with different techniques were reported.
Journal ArticleDOI
The effect of poly[styrene‐b‐(ethylene‐co‐butylene)‐ b‐styrene] on dielectric, thermal, and morphological characteristics of polypropylene/silica nanocomposites
TL;DR: The effect of polystyrene copolymer on the thermal and dielectric properties of polypropylene (PP)-nanosilica composites in relation with morphological aspects revealed by atomic force microscopy (AFM) was investigated in this article.