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Rheological, thermal and electrical properties of poly(ethylene oxide) / silicon dioxide microcomposites

Rheological, thermal and electrical properties of poly(ethylene oxide) / silicon dioxide microcomposites
Rheological, thermal and electrical properties of poly(ethylene oxide) / silicon dioxide microcomposites
Polyethylene oxide (PEO) is a water-soluble polymer that is technologically used as an electrolyte solvent in lithium polymer cells, but is more widely used as a model system to study fundamental processes. This paper details an investigation into the physical, thermal and electrical properties of polyethylene oxide / silicon dioxide composites. Three different molecular weight host PEOs were used - 100,000 g mol-1, 400,000 g mol-1 and 1,000,000 g mol-1 and micro silicon dioxide was chosen as the filler. This was dispersed into the PEO as a solution in distilled water by using controlled shear conditions, and the properties of the resulting materials were then studied. Dispersion was analysed during the system rheology phase by means of shear rate – shear stress data collection. The crystallisation and melting behaviour were examined using differenial scanning calorimetry. The AC ramp electrical breakdown strength and dielectric response were also analysed. This paper investigates the effect of silicon dioxide loading and shear history on structural evolution, dielectric response and breakdown behaviour in PEO.
Reading, Martin
6a4d8a5d-38c3-43ef-bcac-e9848eec8177
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Reading, Martin
6a4d8a5d-38c3-43ef-bcac-e9848eec8177
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3

Reading, Martin and Vaughan, Alun (2009) Rheological, thermal and electrical properties of poly(ethylene oxide) / silicon dioxide microcomposites. ISH 2009.

Record type: Conference or Workshop Item (Paper)

Abstract

Polyethylene oxide (PEO) is a water-soluble polymer that is technologically used as an electrolyte solvent in lithium polymer cells, but is more widely used as a model system to study fundamental processes. This paper details an investigation into the physical, thermal and electrical properties of polyethylene oxide / silicon dioxide composites. Three different molecular weight host PEOs were used - 100,000 g mol-1, 400,000 g mol-1 and 1,000,000 g mol-1 and micro silicon dioxide was chosen as the filler. This was dispersed into the PEO as a solution in distilled water by using controlled shear conditions, and the properties of the resulting materials were then studied. Dispersion was analysed during the system rheology phase by means of shear rate – shear stress data collection. The crystallisation and melting behaviour were examined using differenial scanning calorimetry. The AC ramp electrical breakdown strength and dielectric response were also analysed. This paper investigates the effect of silicon dioxide loading and shear history on structural evolution, dielectric response and breakdown behaviour in PEO.

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Published date: 2009
Venue - Dates: ISH 2009, 2009-01-01
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 268417
URI: https://eprints.soton.ac.uk/id/eprint/268417
PURE UUID: deb9955c-2061-406c-b2a0-f73b4f875306
ORCID for Alun Vaughan: ORCID iD orcid.org/0000-0002-0535-513X

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Date deposited: 27 Jan 2010 12:11
Last modified: 09 May 2019 00:36

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