The University of Southampton
University of Southampton Institutional Repository

The effect of nanofiller on polyethylene system

The effect of nanofiller on polyethylene system
The effect of nanofiller on polyethylene system
The topic of polymer nanocomposites remains an active area of research in terms of its potential applications in dielectric and electrical insulation applications. Although more than a decade has passed since Lewis first considered these systems as dielectric materials, the precise effects of incorporating nanofillers into different polymers are yet to be confirmed. While this strategy is generally regarded as a promising means of tailoring insulation performance, the consequences of adding a nanofiller to an insulating matrix are not always positive; for example, where dispersion is poor the breakdown strength can be adversely affected. This paper reports on an investigation into nano-filled polyethylene system prepared via a solution blending route. A blend of polyethylene containing 20 % of high density polyethylene and 80 % of low density polyethylene was used as the base polymer, with nanosilica as the filler. The strategy employed for material preparation involves the initial dissolution of the polymer in nonpolar xylene and the dispersion of the nanosilica in relatively polar methanol - a non-solvent for polyethylene. Mixing together the two components results in the rapid gelation of the polymer, including the nanoparticles. Specifically, in this study, we consider the effect of processing and nanofiller dispersion on the structure and physical properties of the nanocomposites that forms. The crystallization behaviour and morphology of the differently processed materials have been evaluated by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). After etching, SEM reveals the lamellar texture of the base polymer and provides evidence concerning the dispersion state of the nanosilica. The influence of nanofiller dispersion on breakdown behaviour is finally described.
Lau, Kwan Yiew
2aaea8fa-2552-475d-a6fa-c65a544bc7c5
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Lau, Kwan Yiew
2aaea8fa-2552-475d-a6fa-c65a544bc7c5
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819

(2011) The effect of nanofiller on polyethylene system. Dielectrics 2011, United Kingdom. 13 - 15 Apr 2011.

Record type: Conference or Workshop Item (Poster)

Abstract

The topic of polymer nanocomposites remains an active area of research in terms of its potential applications in dielectric and electrical insulation applications. Although more than a decade has passed since Lewis first considered these systems as dielectric materials, the precise effects of incorporating nanofillers into different polymers are yet to be confirmed. While this strategy is generally regarded as a promising means of tailoring insulation performance, the consequences of adding a nanofiller to an insulating matrix are not always positive; for example, where dispersion is poor the breakdown strength can be adversely affected. This paper reports on an investigation into nano-filled polyethylene system prepared via a solution blending route. A blend of polyethylene containing 20 % of high density polyethylene and 80 % of low density polyethylene was used as the base polymer, with nanosilica as the filler. The strategy employed for material preparation involves the initial dissolution of the polymer in nonpolar xylene and the dispersion of the nanosilica in relatively polar methanol - a non-solvent for polyethylene. Mixing together the two components results in the rapid gelation of the polymer, including the nanoparticles. Specifically, in this study, we consider the effect of processing and nanofiller dispersion on the structure and physical properties of the nanocomposites that forms. The crystallization behaviour and morphology of the differently processed materials have been evaluated by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). After etching, SEM reveals the lamellar texture of the base polymer and provides evidence concerning the dispersion state of the nanosilica. The influence of nanofiller dispersion on breakdown behaviour is finally described.

Microsoft PowerPoint
D2011KYLau.ppt - Other
Download (4MB)

More information

Published date: 13 April 2011
Additional Information: Event Dates: 13 - 15 April 2011
Venue - Dates: Dielectrics 2011, United Kingdom, 2011-04-13 - 2011-04-15
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 272198
URI: http://eprints.soton.ac.uk/id/eprint/272198
PURE UUID: 13d72254-db12-4ad6-b514-d7d7ff25c8bb
ORCID for Alun Vaughan: ORCID iD orcid.org/0000-0002-0535-513X

Catalogue record

Date deposited: 16 Apr 2011 10:47
Last modified: 09 May 2019 00:36

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×