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Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocomposites

    • University of Bologna
    • University of Twente
    • Tampere University of Technology (TUT)

    Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

    Abstract

    This study presents a critical evaluation of the effect of two different sample manufacturing techniques on the morphological and dielectric properties of polypropylene (PP)-based nanocomposites, namely mini-scale injection molding (IM) vs. pilot-scale cast film extrusion. Polarized light microscopy revealed that the IM specimen morphology exhibited a layered “skin-core” type morphology, largely differing from the spherulitic morphology of the corresponding extruded cast films. Higher degree of crystallinity in the IM specimens was evidenced by calorimetric and X-ray diffraction methods. The processingdependent morphological differences were found to affect the isothermal charging current (ICC) and thermally stimulated depolarization current (TSDC) characteristics due to differences in charge mobility and trapping, thus making direct comparison of IM and cast film specimens non-straightforward. Nevertheless, mini-scale injection molding can be seen as a resource-efficient sample manufacturing method for facilitating early-stage screening of the best-performing material candidates, given that the morphological features are carefully taken into account.
    Original languageEnglish
    Title of host publicationProceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Pages209-212
    ISBN (Electronic)978-1-7281-8983-3
    ISBN (Print)978-1-7281-8984-0
    DOIs
    Publication statusPublished - 5 Jul 2020
    MoE publication typeA4 Article in a conference publication
    EventIEEE 2020 International Conference on Dielectrics, ICD 2020: Virtual Edition - Valencia, Spain
    Duration: 6 Jul 2020 → 31 Jul 2020

    Conference

    ConferenceIEEE 2020 International Conference on Dielectrics, ICD 2020
    Country/TerritorySpain
    CityValencia
    Period6/07/20 → 31/07/20

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 9 - Industry, Innovation, and Infrastructure
      SDG 9 Industry, Innovation, and Infrastructure

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