Abstract
This paper summarizes the effects of various
compositional, structural and film processing factors on
the breakdown behavior of laboratory- and pilot-scale
melt-compounded bi-axially oriented polypropylene (BOPP)
nanocomposite films with silica fillers. A self-healing
multi-breakdown measurement approach has been extensively
utilized for large-area breakdown characterization of a
large number of material variants from different
processing trials. The results suggest that although the
optimum level of silica presumably resides at the low
fill-fraction range (~1 wt-%), the silica
content itself is not the only determining factor, as
compounds with equal silica content were found to
exhibit large differences in the breakdown properties
depending on the compounding and film processing
steps. Dispersion quality and filler agglomeration (in
both the nm- and µm-scale) appear to be of great
importance. Indications of possible interaction between
nano-silica and co-stabilizer Irgafos 168 are also
presented. Overall, the laboratory- and pilot-scale film
processing trials suggest that up-scaling of the polymer
nanocomposite production is sensible with traditional
melt-blending technology, although further development
and optimization of nanocomposite formulations and
processing is necessary.
Original language | English |
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Title of host publication | 24th Nordic Insulation Symposium on Materials, Components and Diagnostics |
Publisher | Nordic Insulation Symposium |
Pages | 63-68 |
DOIs | |
Publication status | Published - 2015 |
MoE publication type | A4 Article in a conference publication |
Event | 24th Nordic Insulation Symposium on Materials, Components and Diagnostics, NORD-IS - Copenhagen, Denmark Duration: 5 Jun 2015 → 17 Jun 2015 Conference number: 24 |
Publication series
Series | Proceedings of the Nordic Insulation Symposium |
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Number | 24 |
ISSN | 2535-3969 |
Conference
Conference | 24th Nordic Insulation Symposium on Materials, Components and Diagnostics, NORD-IS |
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Abbreviated title | NORD-IS |
Country/Territory | Denmark |
City | Copenhagen |
Period | 5/06/15 → 17/06/15 |
Keywords
- Bi-axially oriented polypropylene (BOPP)
- nanocomposite
- multi-breakdown