Morphology Development, Structure and Dielectric Properties of Biaxially Oriented Polypropylene

Ilkka Rytöluoto, Mikael Ritamäki, Antonis Gitsas, Satu Pasanen, Kari Lahti

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

This paper outlines our recent study on effects of cast film extrusion and biaxial orientation on the morphological development and dielectric performance of biaxially oriented polypropylene (PP) films based on two capacitor-grade isotactic PP (iPP) raw materials. Results on polymorphic composition, melting behavior, microstructure and dielectric properties are reported. Morphological development during film manufacturing is found to have a profound effect on film structure and dielectric characteristics. Formation of structural defects was traced back to β→α crystal transformation upon biaxial stretching.
Original languageEnglish
Title of host publication25th Nordic Insulation Symposium on Materials, Components and Diagnostics
Number of pages6
DOIs
Publication statusPublished - 18 Jun 2017
MoE publication typeA4 Article in a conference publication
Event25th Nordic Insulation Symposium on Materials, Components and Diagnostics - Västerås, Sweden
Duration: 19 Jun 201721 Jun 2017

Publication series

SeriesProceedings of the Nordic Insulation Symposium
Number25
ISSN2535-3969

Conference

Conference25th Nordic Insulation Symposium on Materials, Components and Diagnostics
CountrySweden
CityVästerås
Period19/06/1721/06/17

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Keywords

  • PP
  • morphology

Cite this

Rytöluoto, I., Ritamäki, M., Gitsas, A., Pasanen, S., & Lahti, K. (2017). Morphology Development, Structure and Dielectric Properties of Biaxially Oriented Polypropylene. In 25th Nordic Insulation Symposium on Materials, Components and Diagnostics Proceedings of the Nordic Insulation Symposium, No. 25 https://doi.org/10.5324/nordis.v0i25.2359