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Dataset for: On the Effect of Functionalizer Chain Length and Water Content in Polyethylene/Silica Nanocomposites: Part I – Dielectric Properties and Breakdown Strength

Dataset for: On the Effect of Functionalizer Chain Length and Water Content in Polyethylene/Silica Nanocomposites: Part I – Dielectric Properties and Breakdown Strength
Dataset for: On the Effect of Functionalizer Chain Length and Water Content in Polyethylene/Silica Nanocomposites: Part I – Dielectric Properties and Breakdown Strength
This dataset is intended for use in conjunction with the publication;On the Effect of Functionalizer Chain Length and Water Content in Polyethylene/Silica Nanocomposites: Part I – Dielectric Properties and Breakdown StrengthAuthors: I. L. Hosier, M. Praeger, A. F. Holt, A. S. Vaughan and S. G. Swinglerwhich was accepted for publication in IEEE Transactions on Dielectrics and Electrical Insulation on 8th February 2017Each page of the worksheet corresponds to a seperate figure in the paperAbstract: A series of nanoparticles was prepared by functionalizing a commercial nanosilica with alkylsilanes of varying alkyl tail length, from propyl to octadecyl. By using a constant molar concentration of silane, the density of alkyl groups attached to each system should be comparable. The effect of chain length on the structure of the resulting nanosilica/polyethylene nanocomposites was examined and comparison with an unfilled reference system revealed that, other than through a weak nucleating effect, the inclusion of the nanosilica does not affect the matrix structure. Since water interacts strongly with applied electric fields, water was used as a dielectric probe in conjunction with dielectric spectroscopy to examine the effect of the nanofiller and its surface chemistry on the system. Sets of samples were prepared through equilibrating under ambient conditions, vacuum drying and water immersion. While the water content of the unfilled polymer was not greatly affected, the water content of the nanocomposites varied over a wide range as a result of water accumulation, in a range of states, at nanoparticle interfaces. The effect of water content on breakdown behavior was also explored and, in the unfilled polymer, the breakdown strength was found to depend little on exposure to water (~13% reduction). In all the nanocomposites, the increased propensity for these systems to absorb water meant that the breakdown strength was dramatically affected (>66% reduction).
Nanotechnology, dielectric breakdown, conductivity, silica, polyethylene, water
University of Southampton
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26

Vaughan, Alun (2017) Dataset for: On the Effect of Functionalizer Chain Length and Water Content in Polyethylene/Silica Nanocomposites: Part I – Dielectric Properties and Breakdown Strength. University of Southampton [Dataset]

Record type: Dataset

Abstract

This dataset is intended for use in conjunction with the publication;On the Effect of Functionalizer Chain Length and Water Content in Polyethylene/Silica Nanocomposites: Part I – Dielectric Properties and Breakdown StrengthAuthors: I. L. Hosier, M. Praeger, A. F. Holt, A. S. Vaughan and S. G. Swinglerwhich was accepted for publication in IEEE Transactions on Dielectrics and Electrical Insulation on 8th February 2017Each page of the worksheet corresponds to a seperate figure in the paperAbstract: A series of nanoparticles was prepared by functionalizing a commercial nanosilica with alkylsilanes of varying alkyl tail length, from propyl to octadecyl. By using a constant molar concentration of silane, the density of alkyl groups attached to each system should be comparable. The effect of chain length on the structure of the resulting nanosilica/polyethylene nanocomposites was examined and comparison with an unfilled reference system revealed that, other than through a weak nucleating effect, the inclusion of the nanosilica does not affect the matrix structure. Since water interacts strongly with applied electric fields, water was used as a dielectric probe in conjunction with dielectric spectroscopy to examine the effect of the nanofiller and its surface chemistry on the system. Sets of samples were prepared through equilibrating under ambient conditions, vacuum drying and water immersion. While the water content of the unfilled polymer was not greatly affected, the water content of the nanocomposites varied over a wide range as a result of water accumulation, in a range of states, at nanoparticle interfaces. The effect of water content on breakdown behavior was also explored and, in the unfilled polymer, the breakdown strength was found to depend little on exposure to water (~13% reduction). In all the nanocomposites, the increased propensity for these systems to absorb water meant that the breakdown strength was dramatically affected (>66% reduction).

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More information

Published date: 14 March 2017
Keywords: Nanotechnology, dielectric breakdown, conductivity, silica, polyethylene, water
Organisations: EEE

Identifiers

Local EPrints ID: 410466
URI: http://eprints.soton.ac.uk/id/eprint/410466
PURE UUID: 80138250-b769-4b15-b5db-42b99f2778ee
ORCID for Alun Vaughan: ORCID iD orcid.org/0000-0002-0535-513X
ORCID for Ian Hosier: ORCID iD orcid.org/0000-0003-4365-9385

Catalogue record

Date deposited: 08 Jun 2017 16:34
Last modified: 09 May 2019 00:36

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Contributors

Creator: Alun Vaughan ORCID iD
Contributor: Ian Hosier ORCID iD

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