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Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylene

Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylene
Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylene
Influence of low amounts (1.0-2.0wt-%) of nanostructured silica and calcium carbonate fillers on the large area dielectric breakdown performance of bi-axially oriented polypropylene (BOPP) is analyzed. A multi-breakdown measurement method based on the self-healing breakdown capability of metallized film is utilized for the breakdown characterization in order to cover relatively large total film areas, thus leading to results of higher relevance from the practical point-of-view. The dispersion and distribution qualities of filler particles at the nanoscale are evaluated with transmission electron microscopy (TEM) imaging. Weibull statistical analysis suggests that the breakdown distribution homogeneity can be improved with both the filler types. The 1.0wt-% silica-BOPP composite also shows a shift of the weakest points towards higher dielectric strength in comparison to the neat BOPP. However, with increasing filler content, new failure modes are introduced into the nanocomposites, hence decreasing the overall breakdown performance in the >5% breakdown probability region in comparison to the un-filled reference BOPP film.
Rytöluoto, Ilkka
d344073b-524a-4dca-8554-4670617bc796
Lahti, Kari
5170bca6-c5fe-44af-a632-9ed8b86b3040
Karttunen, Mikko
03c8025d-e140-42d4-b889-866015d5078d
Koponen, M.
7d0a6e93-b3a3-4188-bb57-f4b9407bcef3
Virtanen, Suvi
5f98459d-e6b8-45d4-bdf8-85d264b3f43a
Pettersson, Mika
80530078-e16c-49df-96bd-d17990e0e38d
Rytöluoto, Ilkka
d344073b-524a-4dca-8554-4670617bc796
Lahti, Kari
5170bca6-c5fe-44af-a632-9ed8b86b3040
Karttunen, Mikko
03c8025d-e140-42d4-b889-866015d5078d
Koponen, M.
7d0a6e93-b3a3-4188-bb57-f4b9407bcef3
Virtanen, Suvi
5f98459d-e6b8-45d4-bdf8-85d264b3f43a
Pettersson, Mika
80530078-e16c-49df-96bd-d17990e0e38d

Rytöluoto, Ilkka, Lahti, Kari, Karttunen, Mikko, Koponen, M., Virtanen, Suvi and Pettersson, Mika (2014) Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylene. 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Des Moines, United States. 19 - 22 Oct 2014. 4 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Influence of low amounts (1.0-2.0wt-%) of nanostructured silica and calcium carbonate fillers on the large area dielectric breakdown performance of bi-axially oriented polypropylene (BOPP) is analyzed. A multi-breakdown measurement method based on the self-healing breakdown capability of metallized film is utilized for the breakdown characterization in order to cover relatively large total film areas, thus leading to results of higher relevance from the practical point-of-view. The dispersion and distribution qualities of filler particles at the nanoscale are evaluated with transmission electron microscopy (TEM) imaging. Weibull statistical analysis suggests that the breakdown distribution homogeneity can be improved with both the filler types. The 1.0wt-% silica-BOPP composite also shows a shift of the weakest points towards higher dielectric strength in comparison to the neat BOPP. However, with increasing filler content, new failure modes are introduced into the nanocomposites, hence decreasing the overall breakdown performance in the >5% breakdown probability region in comparison to the un-filled reference BOPP film.

Text
CEIDP 2014_Paper 230_Revised Paper_Ilkka Rytöluoto.pdf - Accepted Manuscript
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More information

Published date: 19 October 2014
Venue - Dates: 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Des Moines, United States, 2014-10-19 - 2014-10-22
Organisations: EEE

Identifiers

Local EPrints ID: 372536
URI: http://eprints.soton.ac.uk/id/eprint/372536
PURE UUID: e220f6e9-4f4f-4f8b-95e1-d1d8e890b52e
ORCID for Suvi Virtanen: ORCID iD orcid.org/0000-0003-0502-3183

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Date deposited: 16 Dec 2014 10:07
Last modified: 25 Nov 2019 20:38

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