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Structure property relationships in polyethylene/montmorillonite nanodielectrics

Structure property relationships in polyethylene/montmorillonite nanodielectrics
Structure property relationships in polyethylene/montmorillonite nanodielectrics
The influence of a montmorillonite (MMT) nanoclay, functionalized with dimethyl-di(hydrogenated tallow) quaternary amine, on structural evolution and electrical characteristics of a designed polyethylene system has been studied. Samples were prepared by mixing a polyethylene/MMT masterbatch into a matrix system containing 10% high density polyethylene and 90% low density polyethylene using an extruder; X-ray diffraction results suggest good dispersion and exfoliation, as no basal peak was observed. The introduction of this MMT system was found to result in little disruption of the polymer crystallization process and analysis of the crystallization kinetics of the matrix polymer suggests that it interacts only weakly with the incorporated MMT. This is in sharp contrast to our previous studies of a differently functionalized MMT system. Electrically, this combination of highly dispersed MMT within a weakly interacting polymer matrix results in a significant enhancement in short-term breakdown strength. However, this is accompanied by a massive increase in dielectric loss
134-143
Green, C.D.
d603bd37-e0a5-481f-834a-a5c36a9751f5
Vaughan, A.S.
6d813b66-17f9-4864-9763-25a6d659d8a3
Mitchell, G.R.
10233519-13b2-4f3f-ba9f-a47c0cfe68d6
Liu, T.
b3a4dd54-9e13-4ced-8058-a507075b341f
Green, C.D.
d603bd37-e0a5-481f-834a-a5c36a9751f5
Vaughan, A.S.
6d813b66-17f9-4864-9763-25a6d659d8a3
Mitchell, G.R.
10233519-13b2-4f3f-ba9f-a47c0cfe68d6
Liu, T.
b3a4dd54-9e13-4ced-8058-a507075b341f

Green, C.D., Vaughan, A.S., Mitchell, G.R. and Liu, T. (2008) Structure property relationships in polyethylene/montmorillonite nanodielectrics. IEEE Transactions on Dielectrics and Electrical Insulation, 15 (1), 134-143. (doi:10.1109/T-DEI.2008.4446744).

Record type: Article

Abstract

The influence of a montmorillonite (MMT) nanoclay, functionalized with dimethyl-di(hydrogenated tallow) quaternary amine, on structural evolution and electrical characteristics of a designed polyethylene system has been studied. Samples were prepared by mixing a polyethylene/MMT masterbatch into a matrix system containing 10% high density polyethylene and 90% low density polyethylene using an extruder; X-ray diffraction results suggest good dispersion and exfoliation, as no basal peak was observed. The introduction of this MMT system was found to result in little disruption of the polymer crystallization process and analysis of the crystallization kinetics of the matrix polymer suggests that it interacts only weakly with the incorporated MMT. This is in sharp contrast to our previous studies of a differently functionalized MMT system. Electrically, this combination of highly dispersed MMT within a weakly interacting polymer matrix results in a significant enhancement in short-term breakdown strength. However, this is accompanied by a massive increase in dielectric loss

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Published date: February 2008
Additional Information: Imported from ISI Web of Science
Organisations: EEE

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Local EPrints ID: 269132
URI: http://eprints.soton.ac.uk/id/eprint/269132
PURE UUID: 8d9d6237-1ce4-406a-8b71-120fa35bb961
ORCID for A.S. Vaughan: ORCID iD orcid.org/0000-0002-0535-513X

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Date deposited: 21 Apr 2010 07:46
Last modified: 15 Mar 2024 03:05

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Contributors

Author: C.D. Green
Author: A.S. Vaughan ORCID iD
Author: G.R. Mitchell
Author: T. Liu

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