Andreas Neunhäuserer, Sundaresan Arunachalam, Walter Friesenbichler

    Research output: Non-textual formDigital or Visual ProductsResearch


    In contrast to the conventional
    compounding process, where the compound
    should be pelletized and fed into the injection
    molding machine for the second plasticizing
    process, the injection molding compounding
    combines both these two processing steps.
    The unique Montanuniversitaet Leoben
    Polymer Nano-Composite Injection Molding
    Compounder (MUL PNC-IMC) includes an
    extruder to produce melt and an injection
    device which is fluidly connected to the outlet
    of the extruder. The material compounding
    and the subsequent injection molding are
    done directly “by only one plasticizing
    process” using heated melt pipe and a melt
    accumulator. The compounding extruder is a
    co-rotating, self-cleaning twin-screw extruder
    capable of high performance plasticizing,
    uniform melting and good mixing. The melt accumulator holds the continuously extruded melt during the
    injection and holding phases. The injection unit is engineered for high working capacity. The melt is fed to the
    font face of the injection screw. The shot volume is injected completely, so that there is no residue build up. All
    the flow channels are completely emptied in every cycle and the melt dwell times are short. The melt
    accumulator separates the transfer valve and the injection unit, so that maximum injection pressures can be built
    up. An overview of the work on the injection molding compounding technique at the Institute of Injection
    Molding of Polymers, Montanuniversitaet Leoben is described in this article. The comparison of different
    processing and compounding techniques and their influence on mechanical properties are discussed. Both
    conventional processing of polymer nanocomposites and processing in PNC-IMC are evaluated. The effects of
    carbon footprints by these processing strategies are investigated. The results give a good overview on the
    possibilities of the concept of PNC-IMC.
    Original languageEnglish
    Place of PublicationSlowenien
    Publication statusPublished - Apr 2017
    EventInternational Conference on Industrial Tools and Advance Processing Technologies - Grand Hotel Union, Ljubljana, Slovenia
    Duration: 24 Apr 201726 Apr 2017
    Conference number: 11

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