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
    PublisherNordic Insulation Symposium
    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
    Country/TerritorySweden
    CityVästerås
    Period19/06/1721/06/17

    Keywords

    • PP
    • morphology

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