@article{63784,
  author       = {{Trienens, Dorte and Brüning, Florian and Schöppner, Volker}},
  journal      = {{kunststoffland NRW report}},
  title        = {{{Wo Forschung, KI und Praxis aufeinandertreffen}}},
  volume       = {{03-2025}},
  year         = {{2026}},
}

@misc{65010,
  author       = {{Landgräber, Jan and Schöppner, Volker and Brüning, Florian}},
  booktitle    = {{Kunststoffe}},
  number       = {{01}},
  pages        = {{22 -- 25}},
  title        = {{{Der Einzug als Schlüssel zum Erfolg: Untersuchung des Einzugsverhaltens bei Spritzgießaggregaten}}},
  year         = {{2026}},
}

@article{64997,
  author       = {{Trienens, Dorte and Brüning, Florian and Schöppner, Volker}},
  journal      = {{kunststoffland NRW report}},
  keywords     = {{extrusion, KI, Simulation}},
  number       = {{03-2025}},
  pages        = {{24–25}},
  title        = {{{Wo Forschung, KI und Praxis aufeinandertreffen}}},
  year         = {{2026}},
}

@article{59130,
  author       = {{Kleinschmidt, Dennis and Brüning, Florian}},
  journal      = {{KGK Kautschuk Gummi Kunststoffe}},
  keywords     = {{Rheologie, Viskosität, Wandgleiten}},
  title        = {{{Influence of pre-shearing on the rheological properties of filled rubber compounds}}},
  year         = {{2025}},
}

@article{65011,
  abstract     = {{<jats:title>Abstract</jats:title>
                  <jats:p>Design of single screw machines for polymer processing often focuses on the melt dominated areas of the screw. However, solids conveying is a key aspect for processes with high screw speeds, grooved feed sections, small screw diameters and material with low bulk density. In injection moulding, throughput limitations are highly relevant in packaging applications as due to low cooling times, plasticizing affects the cycle time. In addition, insufficient solids conveying is a primary cause for air residues in the melt and final product. Therefore, well-designed feed sections are required, especially as direct processing of regrind in recycling applications becomes more relevant due to governmental restrictions. Existing models for injection moulding are based on analytical equations and do not allow to assess new feed sections and feed opening designs, adapted to high screw speeds or regrind. In this paper, numerical simulations based on the Discrete Element Method (DEM), previously used in the field of extrusion, are carried out. In order to replicate the cyclic, superimposed rotation and translation of the screw, a coupled approach of DEM and Multibody Systems Simulation (MBS) is pursued. To verify the accuracy of such coupled simulations, a special test setup is added to a conventional injection moulding machine. Pure solids conveying is investigated, as DEM does not accommodate for large plastic deformations or melting. Different screw and intake designs as well as smooth and grooved barrels are investigated. Selected resins, pellet shapes and regrind are processed, varying the processing parameters and comparing the results to the simulation. The coupled approach replicates reality well in terms of throughput, confirming that DEM can be utilised to further investigate process phenomena and develop calculation models for solids conveying in injection moulding.</jats:p>}},
  author       = {{Landgräber, Jan and Schöppner, Volker and Brüning, Florian}},
  issn         = {{0930-777X}},
  journal      = {{International Polymer Processing}},
  number       = {{1}},
  pages        = {{1--14}},
  publisher    = {{Walter de Gruyter GmbH}},
  title        = {{{Assessing solids conveying in injection moulding machines using coupled numerical simulations based on the discrete element method (DEM) and multibody systems (MBS)}}},
  doi          = {{10.1515/ipp-2025-0065}},
  volume       = {{41}},
  year         = {{2025}},
}

@article{65012,
  author       = {{Landgräber, Jan and Brüning, Florian}},
  issn         = {{0921-8831}},
  journal      = {{Advanced Powder Technology}},
  number       = {{8}},
  publisher    = {{Elsevier BV}},
  title        = {{{Discrete element method in polymer processing – Method for development of material models}}},
  doi          = {{10.1016/j.apt.2025.104968}},
  volume       = {{36}},
  year         = {{2025}},
}

@inproceedings{65006,
  author       = {{Knaup, Felix and Brüning, Florian and Schöppner, Volker}},
  booktitle    = {{Technomer 2025 29. Fachtagung}},
  isbn         = {{978-3-939382-17-1}},
  keywords     = {{Aufschmelzen, Aufschmelzmodellierung, Feststoffbett, melting modeling}},
  title        = {{{Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder}}},
  year         = {{2025}},
}

@inproceedings{65009,
  author       = {{Schmidt, Leon and Schöppner, Volker and Brüning, Florian}},
  booktitle    = {{RubberCon 2025}},
  editor       = {{Gummitekniska Förening, Sveriges and Swedish, Norwegian and Finnish rubber associations}},
  keywords     = {{extrusion, Kautschuk, Simulation}},
  title        = {{{Findings on pinless screw design for rubber extrusion}}},
  year         = {{2025}},
}

@article{65008,
  author       = {{Schmidt, Leon and Brüning, Florian}},
  journal      = {{KGK - Kautschuk Gummi Kunststoffe}},
  keywords     = {{extrusion, Kautschuk}},
  number       = {{2/25}},
  pages        = {{34–40}},
  title        = {{{Investigation of alternative pinless screw concepts for rubber extrusion}}},
  volume       = {{78. Jahrgang}},
  year         = {{2025}},
}

@article{65000,
  author       = {{Hanselle, Felix Paul and Schöppner, Volker and Brüning, Florian}},
  journal      = {{International Polymer Processing}},
  keywords     = {{Druckabhängigkeit, Rheologie, Simulation, Spritzgießen, Viskosität}},
  title        = {{{Consideration of modeled pressure dependent viscosity data in injection molding simulation}}},
  doi          = {{10.1515/ipp-2025-0074}},
  year         = {{2025}},
}

@article{65002,
  author       = {{Kleinschmidt, Dennis and Brüning, Florian}},
  journal      = {{KGK Kautschuk Gummi Kunststoffe}},
  keywords     = {{Rheologie, Viskosität, Wandgleiten}},
  title        = {{{Influence of pre-shearing on the rheological properties of filled rubber compounds}}},
  year         = {{2025}},
}

@article{65049,
  abstract     = {{<jats:p>The degradation of polypropylene (PP) through thermal and mechanical stress, as well as the influence of oxygen, are unavoidable when processing on a co-rotating twin-screw extruder. In previous studies, a mathematical model was developed to predict the degradation while compounding on different twin-screw extruder sizes. Additionally, the examination of filled PPs was conducted. To this end, a range of operating parameters and extruder sizes were used to process PP, and the molar mass was then determined by melt flow rate (MFR) and gel permeation chromatography (GPC) measurements to derive the degree of degradation. The model was then modified by adjusting the sensitivity parameters to allow the degradation behavior of the PPs to be described independently of extruder size. Consistent with prior research, comprehensive measurements of a PP/titanium dioxide (TiO2) compound revealed that, with a few exceptions, increasing temperatures and screw speeds and decreasing throughputs generally resulted in higher degradation. However, the application of the model to the compounds did not achieve good agreement with the measured degradation, indicating different degradation conditions due to the different thermodynamic and rheological properties of the compounds.</jats:p>}},
  author       = {{Albrecht, Paul and Altepeter, Matthias and Brüning, Florian}},
  issn         = {{2073-4360}},
  journal      = {{Polymers}},
  number       = {{11}},
  publisher    = {{MDPI AG}},
  title        = {{{Degradation of Polypropylene and Polypropylene Compounds on Co-Rotating Twin-Screw Extruders}}},
  doi          = {{10.3390/polym17111509}},
  volume       = {{17}},
  year         = {{2025}},
}

@inproceedings{65208,
  author       = {{Rempel, Timm and Brüning, Florian}},
  booktitle    = {{ANTEC}},
  title        = {{{Investigations into the specific throughput stability of conical feed zones over the rotation speed during the direct processing of polypropylene regrind}}},
  year         = {{2025}},
}

@article{65004,
  author       = {{Knaup, Felix and Brüning, Florian}},
  journal      = {{Extrusion}},
  keywords     = {{Aufschmelzen, extrusion, Messtechnik}},
  pages        = {{28–33}},
  title        = {{{Vergleich experimenteller Methoden zur Untersuchung des Aufschmelzprozesses in Einschneckenextrudern}}},
  year         = {{2025}},
}

@inbook{65240,
  author       = {{Petzke, Jonas Dirk Rudolf Helmut and Schmidt, Leon and Kleinschmidt, Dennis and Brüning, Florian}},
  booktitle    = {{International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book}},
  keywords     = {{distributives Mischen, Extrusion, Kautschuk, Stiftextruder}},
  pages        = {{150–151}},
  title        = {{{Experimental Analysis of the Mixing Behavior of Ethylene-Propylene-Diene Rubber (EPDM) in a Rubber Pin Extruder under Variation of Process Parameters and Mixing Elements}}},
  year         = {{2025}},
}

@inbook{65238,
  author       = {{Damanik, Hogenrich and Fatima, Arooj and Turek, Stefan and Petzke, Jonas Dirk Rudolf Helmut and Kleinschmidt, Dennis and Brüning, Florian}},
  booktitle    = {{International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book}},
  keywords     = {{CFD simulation, Materialmodellierung, Phan-Thien-Tanner, PTT, Simulation}},
  pages        = {{266–268}},
  title        = {{{Numerical modeling of the non-isothermal viscoelastic flow behavior of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model}}},
  year         = {{2025}},
}

@inbook{65239,
  author       = {{Petzke, Jonas Dirk Rudolf Helmut and Kleinschmidt, Dennis and Brüning, Florian}},
  booktitle    = {{International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book}},
  keywords     = {{Devulkanisation, Kautschuk, Recycling}},
  pages        = {{185–186}},
  title        = {{{Thermo-Chemical Devulcanization of Sulfur-cured Styrene-Butadiene Rubber (SBR) Using Diphenyldisulfide (DPDS)}}},
  year         = {{2025}},
}

@article{65241,
  author       = {{Rempel, Timm and Brüning, Florian}},
  journal      = {{ANTEC}},
  title        = {{{Investigations into the specific throughput stability of conical feed zones over the rotation speed during the direct processing of polypropylene regrind}}},
  year         = {{2025}},
}

@article{59061,
  author       = {{Moritzer, Elmar and Brüning, Florian and Hopf, Stefan and Lettmann, Pascal}},
  journal      = {{kunststoffland NRW report}},
  keywords     = {{KI, PCR, Spritzgießen}},
  number       = {{1}},
  title        = {{{Kreislaufwirtschaft, Industrie 4.0? - KI gestützte Prozessregelungen zeigen Potential}}},
  year         = {{2024}},
}

@inproceedings{59123,
  author       = {{Brüning, Florian and Landgräber, Jan}},
  booktitle    = {{Annual Technical Conference of the Society of Plastics Engineers (ANTEC 2024)}},
  keywords     = {{extrusion, Feststoffförderung, Reibwerte, Spritzgießen}},
  title        = {{{Material and process effects on the tribological behavior of polymer bulk materials}}},
  year         = {{2024}},
}