Abstract
Influence of low amounts (1.0-2.0wt-%) of nanostructured silica and calcium carbonate fillers on the largearea 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.
Original language | English |
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Title of host publication | 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) |
Publisher | IEEE Institute of Electrical and Electronic Engineers |
Pages | 655-658 |
ISBN (Electronic) | 978-1-4799-7525-9 |
DOIs | |
Publication status | Published - 2014 |
MoE publication type | A4 Article in a conference publication |
Event | IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2014 - Des Moines, United States Duration: 19 Oct 2014 → 22 Oct 2014 |
Conference
Conference | IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2014 |
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Abbreviated title | CEIDP 2014 |
Country/Territory | United States |
City | Des Moines |
Period | 19/10/14 → 22/10/14 |
Keywords
- polymer nanocomposite film
- polypropylene
- silica
- calcium carbonate
- dielectric breakdown performance