---
_id: '59135'
abstract:
- lang: eng
  text: Compounding is an important step in processing base polymers and is used to
    incorporate various additives into a polymer. For this purpose, different screw
    elements are used for dispersive and distributive mixing on a co-rotating twin-screw
    extruder. Optimising the screw configuration requires precise knowledge of the
    screw elements’ mixing properties, which have not been thoroughly investigated.
    This study analyses the mixing behaviour of individual screw elements regarding
    dispersive and distributive mixing using 3D CFD flow simulations with subsequent
    particle tracking. For distributive mixing, the particle distribution behind the
    screw elements in the XY plane is analysed and the mixing index MQ, which relates
    the standard deviation and the mean value of the triangular areas between the
    particles, is calculated. For dispersive mixing, the maximum shear stress on the
    particle path and the integral of the shear stress over the residence time of
    each individual particle are determined. The results show that screw element geometry
    and rotation speed have a significant influence on dispersive and distributive
    mixing. In addition, better dispersive mixing is achievable with highly viscous
    materials. These findings enable the optimisation of the mixing zone of a co-rotating
    twin-screw extruder for the efficient mixing of mineral fillers.
author:
- first_name: Jan Philipp
  full_name: Oldemeier, Jan Philipp
  id: '56781'
  last_name: Oldemeier
- first_name: Volker
  full_name: Schöppner, Volker
  id: '20530'
  last_name: Schöppner
citation:
  ama: Oldemeier JP, Schöppner V. Analysis of the Dispersive and Distributive Mixing
    Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle
    Tracking. <i>Polymers</i>. 2024;16(21). doi:<a href="https://doi.org/10.3390/polym16212952">10.3390/polym16212952</a>
  apa: Oldemeier, J. P., &#38; Schöppner, V. (2024). Analysis of the Dispersive and
    Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder
    with Particle Tracking. <i>Polymers</i>, <i>16</i>(21). <a href="https://doi.org/10.3390/polym16212952">https://doi.org/10.3390/polym16212952</a>
  bibtex: '@article{Oldemeier_Schöppner_2024, title={Analysis of the Dispersive and
    Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder
    with Particle Tracking}, volume={16}, DOI={<a href="https://doi.org/10.3390/polym16212952">10.3390/polym16212952</a>},
    number={21}, journal={Polymers}, author={Oldemeier, Jan Philipp and Schöppner,
    Volker}, year={2024} }'
  chicago: Oldemeier, Jan Philipp, and Volker Schöppner. “Analysis of the Dispersive
    and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw
    Extruder with Particle Tracking.” <i>Polymers</i> 16, no. 21 (2024). <a href="https://doi.org/10.3390/polym16212952">https://doi.org/10.3390/polym16212952</a>.
  ieee: 'J. P. Oldemeier and V. Schöppner, “Analysis of the Dispersive and Distributive
    Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle
    Tracking,” <i>Polymers</i>, vol. 16, no. 21, 2024, doi: <a href="https://doi.org/10.3390/polym16212952">10.3390/polym16212952</a>.'
  mla: Oldemeier, Jan Philipp, and Volker Schöppner. “Analysis of the Dispersive and
    Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder
    with Particle Tracking.” <i>Polymers</i>, vol. 16, no. 21, 2024, doi:<a href="https://doi.org/10.3390/polym16212952">10.3390/polym16212952</a>.
  short: J.P. Oldemeier, V. Schöppner, Polymers 16 (2024).
date_created: 2025-03-25T10:19:50Z
date_updated: 2025-03-27T12:56:35Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
doi: 10.3390/polym16212952
intvolume: '        16'
issue: '21'
keyword:
- Compoundieren
- disperses Mischen
- distributives Mischen
- Schneckenelemente
language:
- iso: eng
publication: Polymers
quality_controlled: '1'
status: public
title: Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements
  on the Co-Rotating Twin-Screw Extruder with Particle Tracking
type: journal_article
user_id: '59363'
volume: 16
year: '2024'
...
---
_id: '59134'
author:
- first_name: Laura
  full_name: Austermeier, Laura
  id: '45326'
  last_name: Austermeier
- first_name: Volker
  full_name: Schöppner, Volker
  id: '20530'
  last_name: Schöppner
citation:
  ama: Austermeier L, Schöppner V. Load Differences between the Screws in the Solids
    Conveying Zone of Co-Rotating Twin-Screw Extruders. <i>37th International Conference
    of the Polymer Processing Society</i>. Published online 2024.
  apa: Austermeier, L., &#38; Schöppner, V. (2024). Load Differences between the Screws
    in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders. <i>37th International
    Conference of the Polymer Processing Society</i>.
  bibtex: '@article{Austermeier_Schöppner_2024, title={Load Differences between the
    Screws in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders}, journal={37th
    International Conference of the Polymer Processing Society}, author={Austermeier,
    Laura and Schöppner, Volker}, year={2024} }'
  chicago: Austermeier, Laura, and Volker Schöppner. “Load Differences between the
    Screws in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders.” <i>37th
    International Conference of the Polymer Processing Society</i>, 2024.
  ieee: L. Austermeier and V. Schöppner, “Load Differences between the Screws in the
    Solids Conveying Zone of Co-Rotating Twin-Screw Extruders,” <i>37th International
    Conference of the Polymer Processing Society</i>, 2024.
  mla: Austermeier, Laura, and Volker Schöppner. “Load Differences between the Screws
    in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders.” <i>37th International
    Conference of the Polymer Processing Society</i>, 2024.
  short: L. Austermeier, V. Schöppner, 37th International Conference of the Polymer
    Processing Society (2024).
date_created: 2025-03-25T10:19:50Z
date_updated: 2025-03-27T12:56:06Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- Compoundieren
- Doppelschneckenextruder
- Drehmoment
- Energieeintrag
- Feststoffförderung
- Schneckenelemente
language:
- iso: eng
publication: 37th International Conference of the Polymer Processing Society
quality_controlled: '1'
status: public
title: Load Differences between the Screws in the Solids Conveying Zone of Co-Rotating
  Twin-Screw Extruders
type: journal_article
user_id: '59363'
year: '2024'
...