@inproceedings{52800,
  author       = {{Stüker, Daniel and Schöppner, Volker}},
  booktitle    = {{INTERNATIONAL CONFERENCE ON HUMANS AND TECHNOLOGY: A HOLISTIC AND SYMBIOTIC APPROACH TO SUSTAINABLE DEVELOPMENT: ICHT 2022}},
  issn         = {{0094-243X}},
  publisher    = {{AIP Publishing}},
  title        = {{{Simplified numerical calculation of the isothermal, three-dimensional, Non-Newtonian flow characteristics of single-screw melt-extruder}}},
  doi          = {{10.1063/5.0138943}},
  year         = {{2023}},
}

@inproceedings{31733,
  author       = {{Schöppner, Volker and Brüning, Florian}},
  booktitle    = {{36th International Conference of the Polymer Processing Society  (PPS-36)}},
  location     = {{Montreal (Kanada)}},
  title        = {{{Calibration of a Contact Model for DEM Simulations of Grooved Feed  Sections of Single Screw Extruders}}},
  doi          = {{10.1063/5.0135858}},
  year         = {{2023}},
}

@inproceedings{34748,
  author       = {{Vogtschmidt, Sascha and Schöppner, Volker}},
  location     = {{Tokyo}},
  title        = {{{The short-and long-term properties of welded high-temperature-resistant thermoplastics}}},
  doi          = {{10.1007/s40194-023-01595-3}},
  year         = {{2023}},
}

@article{52802,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Currently, the fused deposition modeling (FDM) process is the most common additive manufacturing technology. The principle of the FDM process is the strand wise deposition of molten thermoplastic polymers, by feeding a filament trough a heated nozzle. Due to the strand and layer wise deposition the cooling of the manufactured component is not uniform. This leads to dimensional deviations which may cause the component to be unusable for the desired application. In this paper, a method is described which is based on the shrinkage compensation through the adaption of every single raster line in components manufactured with the FDM process. The shrinkage compensation is based on a model resulting from a DOE which considers the main influencing factors on the shrinkage behavior of raster lines in the FDM process. An in‐house developed software analyzes the component and locally applies the shrinkage compensation with consideration of the boundary conditions, e.g., the position of the raster line in the component and the process parameters. Following, a validation using a simple geometry is conducted to show the effect of the presented adaptive scaling method.</jats:p>}},
  author       = {{Moritzer, Elmar and Hecker, Felix}},
  issn         = {{1022-1360}},
  journal      = {{Macromolecular Symposia}},
  keywords     = {{Materials Chemistry, Polymers and Plastics, Organic Chemistry, Condensed Matter Physics}},
  number       = {{1}},
  publisher    = {{Wiley}},
  title        = {{{Adaptive Scaling of Components in the Fused Deposition Modeling Process}}},
  doi          = {{10.1002/masy.202200181}},
  volume       = {{411}},
  year         = {{2023}},
}

@inproceedings{52801,
  author       = {{Altepeter, Matthias and Wanke, Sven and Schöppner, Volker}},
  booktitle    = {{INTERNATIONAL CONFERENCE ON HUMANS AND TECHNOLOGY: A HOLISTIC AND SYMBIOTIC APPROACH TO SUSTAINABLE DEVELOPMENT: ICHT 2022}},
  issn         = {{0094-243X}},
  publisher    = {{AIP Publishing}},
  title        = {{{Analysis and modelling of the material degradation of polypropylene on the co-rotating twin-screw extruder}}},
  doi          = {{10.1063/5.0135824}},
  year         = {{2023}},
}

@article{48657,
  author       = {{Moritzer, Elmar and Tölle, Lisa and Greb, C. and Haag, M.}},
  issn         = {{2504-477X}},
  journal      = {{Journal of Composites Science}},
  number       = {{7}},
  pages        = {{267}},
  title        = {{{Conceptions and Feasibility Study of Fiber Orientation in the Melt as Part of a Completely Circular Recycling Concept for Fiber-Reinforced Thermoplastics}}},
  doi          = {{10.3390/jcs7070267}},
  year         = {{2023}},
}

@article{48750,
  author       = {{Schöppner, Volker and Altepeter, Matthias and Austermeier, Laura and Wanke, Sven and Meinheit, Philipp}},
  journal      = {{Polymers 2023}},
  number       = {{15(9)}},
  pages        = {{2181}},
  title        = {{{Polypropylene Degradation on Co-Rotating Twin-Screw Extruders}}},
  doi          = {{10.3390/polym15092181}},
  year         = {{2023}},
}

@inproceedings{34736,
  author       = {{Schöppner, Volker and Frank, Maximilian}},
  location     = {{Fukuoka}},
  title        = {{{Investigation of the Homogenization Performance of Various Faceted Mixers and Optimization with Regard to Mixing as well as Pressure Throughput Behavior}}},
  doi          = {{10.1063/5.0135825}},
  year         = {{2023}},
}

@inproceedings{29946,
  author       = {{Schall, Christoph Wilhelm Theodor and Schöppner, Volker}},
  booktitle    = {{PPS36}},
  keywords     = {{Computing Resources Provided by the Paderborn Center for Parallel Computing}},
  title        = {{{Design of a test bench for measuring the degradation behavior of plastics during processing}}},
  year         = {{2023}},
}

@article{48742,
  author       = {{Schöppner, Volker and Schall, Christoph Wilhelm Theodor}},
  journal      = {{Materials}},
  number       = {{16(17)}},
  pages        = {{5891}},
  title        = {{{Material Characterization of Polypropylene and Polystyrene Regarding Molecular Degradation Behavior}}},
  doi          = {{10.3390/ma16175891}},
  year         = {{2023}},
}

@article{48654,
  author       = {{Moritzer, Elmar and Held, Christian}},
  issn         = {{0043-2288}},
  journal      = {{Welding in the World}},
  title        = {{{Characterization of additively manufactured parts for direct screwing}}},
  doi          = {{10.1007/s40194-023-01610-7}},
  year         = {{2023}},
}

@article{48659,
  author       = {{Trienens, Dorte and Schöppner, Volker and Bunse, Robin}},
  journal      = {{Polymers 2023}},
  title        = {{{Determination of Correlations between Melt Quality and the Screw Performance Index in the Extrusion Process}}},
  doi          = {{https://doi.org/10.3390/polym15163427}},
  year         = {{2023}},
}

@article{48737,
  author       = {{Schöppner, Volker and Kleinschmidt, Dennis}},
  journal      = {{SPE Polymers}},
  pages        = {{1--17}},
  title        = {{{Improvement of a method for the correction of wall slip effects within the rheological measurements of filled rubber compounds}}},
  year         = {{2023}},
}

@article{52828,
  author       = {{Brüning, Florian and Kleinschmidt, Dennis and Petzke, J.}},
  issn         = {{https://doi.org/10.3390/polym15224406}},
  journal      = {{Polymers}},
  pages        = {{1--23}},
  title        = {{{Wall Slip-Free Viscosity Determination of Filled Rubber Compounds Using Steady-State Shear Measurements}}},
  doi          = {{https://doi.org/10.3390/polym15224406}},
  year         = {{2023}},
}

@article{52833,
  author       = {{Schöppner, Volker and Austermeier, Laura and Brüning, Florian and Oldemeier, Jan Philipp and Brandt, O.}},
  issn         = {{2190-4774}},
  journal      = {{EXTRUSION}},
  number       = {{8/2023}},
  pages        = {{56--59}},
  title        = {{{Recycling-Ansatz für mehrkomponentige Kunststoffprodukte durch thermische Verbundtrennung}}},
  year         = {{2023}},
}

@inproceedings{52840,
  author       = {{Schöppner, Volker and Arndt, Theresa}},
  booktitle    = {{76th Annual Assembly of the International Institute of Welding (IIW)}},
  title        = {{{Anvil-free ultrasonic welding for welding situations with one sided access}}},
  year         = {{2023}},
}

@article{52836,
  author       = {{Brüning, Florian and Kleinschmidt, Dennis and Petzke, J.}},
  journal      = {{Kunststoffland NRW Report}},
  number       = {{03/2023}},
  pages        = {{28--29}},
  title        = {{{Elastomerrecycling mittels Mikrowellenstrahlung}}},
  year         = {{2023}},
}

@article{52837,
  author       = {{Moritzer, Elmar and Kartelmeyer, S. and Kringe, R. and Jaroschek, C.}},
  journal      = {{Plastics Insights}},
  number       = {{8/2023}},
  pages        = {{44--48}},
  title        = {{{Conformal Cooling at Low Cost}}},
  year         = {{2023}},
}

@phdthesis{37640,
  author       = {{Kröker, Michael}},
  title        = {{{Experimentelle und modellbasierte Untersuchungen zum Prozessverhalten von teilkristallinen Materialien im Spritzgießsonderverfahren GITBlow}}},
  year         = {{2023}},
}

@article{42515,
  abstract     = {{<jats:p> Microcellular wood fiber reinforced polymers offer the possibility to reduce the use of fossil raw materials. In particular, thick-walled structures with thicknesses greater than 6 mm offer a high potential for weight savings. This study investigates the cell structures and mechanical properties of injection-molded test specimens. The influence of different thicknesses (6–10 mm) along with different chemical blowing agents (endothermic, exothermic) with varying dosages (0–2 wt%) is analyzed. The investigations reveal that exothermic chemical blowing agents form finer cells consistently to thin-walled structures than endothermic ones. Higher foaming agent content leads to higher pore fractions, with many small cells coalescing into a large open-pore cell network. The mechanical properties depend mainly on the pore content of the sample. The specific tensile properties deteriorate with the use of chemical blowing agents (CFA), whereas the sandwich structure produced with compact edge layers has a positive influence on the specific flexural properties. </jats:p>}},
  author       = {{Moritzer, Elmar and Flachmann, Felix}},
  issn         = {{0021-955X}},
  journal      = {{Journal of Cellular Plastics}},
  keywords     = {{Materials Chemistry, Polymers and Plastics, General Chemistry}},
  number       = {{3}},
  pages        = {{187--199}},
  publisher    = {{SAGE Publications}},
  title        = {{{Morphological and mechanical properties of foamed thick-walled Wood-Plastic-Composite structures}}},
  doi          = {{10.1177/0021955x231161175}},
  volume       = {{59}},
  year         = {{2023}},
}