Thermally more durable electromechanical films by POSS nanomodification

Mika Paajanen, Mikko Karttunen, Satu Kortet, Inka Orko

    Research output: Contribution to journalArticleScientificpeer-review

    3 Citations (Scopus)


    The thermal stability of polypropylene (PP) based cellular electromechanical films was improved by compounding PP with thermally more durable cyclo olefin copolymer (COC) and polyhedral oligomeric silsesquioxane (POSS) nanochemical. The cast films were biaxially oriented in laboratory scale and then expanded by a gas diffusion expansion method, which increased the pore size inside the cellular film structure and the thickness of the film. The cellular films were then electrostatically charged by a contact charging method and metallized by gold sputtering. The samples were aged at 85°C showing that the d33 signal decreased from the original value, but remained at high level; more than 120 pC/N even after two weeks of ageing.
    Original languageEnglish
    Pages (from-to)65-68
    JournalKey Engineering Materials
    Publication statusPublished - 2012
    MoE publication typeA1 Journal article-refereed
    Event2nd International Conference on Optical, Electronic and Electrical Materials, OEEM 2012 - Shanghai, China
    Duration: 5 Aug 20127 Aug 2012


    • Electromechanical
    • sensor
    • nanocomposite
    • polymer
    • film


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