TY - ADVS

T1 - ADVANCES IN INJECTION MOLDING COMPOUNDING ON CARBON FOORPRINT IN THE PRODUCTION OF POLYMER NANOCOMPOSITES

AU - Neunhäuserer, Andreas

AU - Arunachalam, Sundaresan

AU - Friesenbichler, Walter

N1 - Conference code: 11

PY - 2017/4

Y1 - 2017/4

N2 - In contrast to the conventionalcompounding process, where the compoundshould be pelletized and fed into the injectionmolding machine for the second plasticizingprocess, the injection molding compoundingcombines both these two processing steps.The unique Montanuniversitaet LeobenPolymer Nano-Composite Injection MoldingCompounder (MUL PNC-IMC) includes anextruder to produce melt and an injectiondevice which is fluidly connected to the outletof the extruder. The material compoundingand the subsequent injection molding aredone directly “by only one plasticizingprocess” using heated melt pipe and a meltaccumulator. The compounding extruder is aco-rotating, self-cleaning twin-screw extrudercapable of high performance plasticizing,uniform melting and good mixing. The melt accumulator holds the continuously extruded melt during theinjection and holding phases. The injection unit is engineered for high working capacity. The melt is fed to thefont face of the injection screw. The shot volume is injected completely, so that there is no residue build up. Allthe flow channels are completely emptied in every cycle and the melt dwell times are short. The meltaccumulator separates the transfer valve and the injection unit, so that maximum injection pressures can be builtup. An overview of the work on the injection molding compounding technique at the Institute of InjectionMolding of Polymers, Montanuniversitaet Leoben is described in this article. The comparison of differentprocessing and compounding techniques and their influence on mechanical properties are discussed. Bothconventional processing of polymer nanocomposites and processing in PNC-IMC are evaluated. The effects ofcarbon footprints by these processing strategies are investigated. The results give a good overview on thepossibilities of the concept of PNC-IMC.

AB - In contrast to the conventionalcompounding process, where the compoundshould be pelletized and fed into the injectionmolding machine for the second plasticizingprocess, the injection molding compoundingcombines both these two processing steps.The unique Montanuniversitaet LeobenPolymer Nano-Composite Injection MoldingCompounder (MUL PNC-IMC) includes anextruder to produce melt and an injectiondevice which is fluidly connected to the outletof the extruder. The material compoundingand the subsequent injection molding aredone directly “by only one plasticizingprocess” using heated melt pipe and a meltaccumulator. The compounding extruder is aco-rotating, self-cleaning twin-screw extrudercapable of high performance plasticizing,uniform melting and good mixing. The melt accumulator holds the continuously extruded melt during theinjection and holding phases. The injection unit is engineered for high working capacity. The melt is fed to thefont face of the injection screw. The shot volume is injected completely, so that there is no residue build up. Allthe flow channels are completely emptied in every cycle and the melt dwell times are short. The meltaccumulator separates the transfer valve and the injection unit, so that maximum injection pressures can be builtup. An overview of the work on the injection molding compounding technique at the Institute of InjectionMolding of Polymers, Montanuniversitaet Leoben is described in this article. The comparison of differentprocessing and compounding techniques and their influence on mechanical properties are discussed. Bothconventional processing of polymer nanocomposites and processing in PNC-IMC are evaluated. The effects ofcarbon footprints by these processing strategies are investigated. The results give a good overview on thepossibilities of the concept of PNC-IMC.

M3 - Digital or Visual Products

CY - Slowenien

T2 - International Conference on Industrial Tools and Advance Processing Technologies

Y2 - 24 April 2017 through 26 April 2017

ER -