Current publications

• Plasma modified barriers and membranes

  Ch. Hopmann, A. Grefenstein, R. Dahlmann, S. Wilski, L. Kleines, M. Jaritz, C. Hoppe, G. Grundmeier | Published in: 30th International Colloquium...

  15 May 2021

• Quantification of dominant diffusion processes through plasma enhanced chemical vapor deposition-coated plastics by combining two complementary methods for porosity analysis

  S. Wilski, M. Jaritz, L. Kleines, R. Dahlmann, Ch. Hopmann | Published in: Journal of Materials Journal of Physics D: Applied Physics, 53 (2020), pp....

  15 May 2021

• HMDSO-Based Thin Plasma Polymers as Corrosion Barrier Against NaOH Solution

  M. Jaritz, Ch. Hopmann, S. Wilski, L. Kleines, M. Rudolph, P. Awakowicz, R. Dahlmann | Published in: Journal of Materials Engineering and Performance...

  15 May 2021

• Function-orientated Production of FRP Components

  N. Magura, S. Stender, K. Fischer, M. Emonts | Published in: Lightweight Design worldwide 1/2019, pp. 18-24 ...

  15 May 2021

• Automated Winding of Preforms Directly from Roving

  Ch. Hopmann, L. Wruck, D. Schneider, K. Fischer | Published in: Lightweight Design worldwide 2/2019, pp. 58-62 ...

  15 May 2021

• Development of an automatized preforming process based on filament winding

  Ch. Hopmann, L. Wruck, D. Schneider, K. Fischer | Published in: SAMPE Europe Conference 2019, Nantes, France, 17 - 19 September 2019, pp. 1-8 ...

  15 May 2021

• Potential analysis of CO2-based, crosslinkable polyols for polyurethane components

  Ch. Hopmann, D. Schneider, N. Bergmann, F. Kessler, J. Norwig | Published in: PU Magazin International, 3/2019, June/July 2019, Volume 16, pp. 92-97 ...

  15 May 2021

• Individualized Production of Fiber-reinforced Hybrid Components

  Ch. Hopmann, M. Ophüls, M. Schulz, H. Janssen | Published in: Lightweight Design worldwide 4/2019, pp. 68-74 ...

  15 May 2021

• Simulation of Solidification of a Nucleated Isotactic Polypropylene in a Quiescent Condition

  Ch. Hopmann, H. Nokhostin | Published in: Advances in Polymer Processing 2020, pp. 301-312

  www.doi/org/10.1007/978-3-662-60809-8_25

  15 May 2021

• Prediction of the Bond Strength of Thermoplastics Welded by Laser Transmission Welding

  Ch. Hopmann, S. Bölle, L. Reithmayr | Published in: Advances in Polymer Processing 2020, pp. 247-257

  www.doi.org/10.1007/978-3-662-60809-8_20

  15 May 2021

• Modeling of the thermally induced residual stresses during laser transmission welding of thermoplastics

  Ch. Hopmann, S. Bölle, S. Kreimeier | Published in: Welding in the World 2019, pp. 1417-1429

  www.doi.org/10.1007/s40194-019-00770-9

  15 May 2021

• A combined experimental and computational study of environmental stress cracking of amorphous polymers

  Ch. Hopmann, M. Meunier, S. Koch, D. Alperstein | Published in: Polymers for Advanced Technologies 2/2019, pp. 297-308

  www.doi.org/10.1002/pat.4769

  ...

  15 May 2021

• A micromechanical model for loading and unloading behaviour of fibre

  Ch. Hopmann, N. Rozo Lopez, J. Chen | Published in: Polymer Composites 2020, (Vol. 41/Issue 9), pp. 1-11

  www.doi.org/10.1002/pc.25684

  15 May 2021

• Simulative optimisation of mixing and die technology in extrusion

  Ch. Hopmann, M. Schön, M. Backmann, F. Petzinka, L. Leuchtenberger | Published in: 30th International Colloquium Plastics Technology 2020, Session 5,...

  15 May 2021

• Evaluation of mesh interface and immersed boundary models for the simulative optimisation of mixing elements

  Ch. Hopmann, M. Schön | Published in: ANTEC Proceedings 2020, ANTEC® 2020: The Virtual Edition, 30 March - 5 May 2020, pp. 1-6

  www.4spe.org

  15 May 2021

• Improvement of Material Modelling for Lightweight Bottles

  Ch. Hopmann, B. Twardowski | Published in: comPETence 2/2019, pp. 1-7 ...

  15 May 2021

• Optimisation of the plug geometry in plug assissted thermoforming to increase material efficiency

  Ch. Hopmann, D. Balcerowiak | Published in: Extrusion International 5/2019, pp. 34-38

  www.extrusion-info.com/upload/magazines/extr_int/5-2019/#34

  15 May 2021

• Central Hub for Digitization in Plastics Processing

  Ch. Hopmann, P. Bibow | Published in: Kunststoffe International 5/2020, pp. 7-9 ...

  15 May 2021

• Use Cases of Digitized Plastics Processing

  Ch. Hopmann, P. Bibow | Published in: Kunststoffe International 7/2020, pp. 6-8 ...

  15 May 2021

• Development of a novel control strategy for a highly segmented injection mold tempering for minimized part warpage control

  Ch. Hopmann, M. Schmitz, C. Kahve | Published in: Polymer engineering and science 2020, pp. 1-11

  www.doi.org/10.1002/pen.25481

  15 May 2021

• Foam Sheet Extrusion with Blowing Agent Mixtures and Correlation Analysis with Dimensionless Numbers

  R. Breuer, N. Reinhardt, Ch. Hopmann, S. Hendriks | Published in: ANTEC Proceedings 2020, ANTEC® 2020: The Virtual Edition, 30 March - 5 May 2020 ...

  15 Feb 2021

• Homogenisation of the Wall Thickness Distribution of Thermoformed Cups by using Different Pre-stretch Plugs and Process Parameter Settings to Improve Material Efficiency

  D. Balcerowiak, Ch. Hopmann | Published in: Advances in Polymer Processing 2020, pp. 79-92

  www.doi.org/10.1007/978-3-662-60809-8_7

  15 Feb 2021

• Continuous Chemical Recycling of Polystyrene with a Twin-Screw Extruder

  P. Schäfer, Ch. Hopmann, M. Facklam, L. Hollerbach, T. Kolb, A. Schedl, H.-W. Schmidt, F. Nosic, B. Wilhelmus | Published in: Advances in Polymer...

  15 Feb 2021

• Influence of Variothermal Temperature Control on the Weld Line Quality of Extrusion Blow Molded Products

  D. Foerges, M. Schön, M. Facklam, Ch. Hopmann | Published in: ANTEC Proceedings 2020, ANTEC® 2020: The Virtual Edition, 30 March - 5 May 2020 ...

  15 Feb 2021

• Heating of the Mash Seam

  Ch. Hopmann, D. Foerges, M. Schön, M. Facklam | Published in: Kunststoffe international 3/2020, pp. 38-41

  www.kunststoffe-international.com/2020–3

  ...

  15 Feb 2021

• Optimization of Processing Properties of CO2 Rubber Compounds

  Ch. Hopmann, M. Drach, C. Wiesel, M. Facklam | Published in: ANTEC Proceedings 2020, ANTEC® 2020: The Virtual Edition, 30 March - 5 May 2020 ...

  15 Feb 2021

• Analyzing the Machine-Specific Process Behavior for Automated Adaption of Setting Parameters

  Ch. Hopmann, P. Bibow | Published in: ANTEC Proceedings 2020, ANTEC® 2020: The Virtual Edition, 30 March - 5 May 2020

  www.4spe.org

  15 Feb 2021

• Model-Driven Development of a Digital Twin for Injection Molding

  P. Bibow, M. Dalibor, Ch. Hopmann, B. Mainz, B. Rumpe, D. Schmalzing, M. Schmitz, A. Wortmann | Published in: CAiSE 2020, 32nd International...

  15 Feb 2021

• Enhanced Filling of Injection Molds by Microstructured Cavity Surfaces

  Ch. Hopmann, M. Orth | Published in: ANTEC Proceedings 2020, ANTEC® 2020: The Virtual Edition, 30 March - 5 May 2020

  www.4spe.org

  15 Feb 2021

• Degradable Plastic/Wood Hybrids for Sustainable Packaging Solutions

  S. Wurzbacher, Ch. Hopmann | Published in: ANTEC Proceedings 2020, ANTEC® 2020: The Virtual Edition, 30 March - 5 May 2020

  www.4spe.org

  15 Feb 2021

• Predicting the damage development in epoxy resins using an anisotropic damage model

  J. M. Müller, N. Rozo Lopez, E. A. Klein, Ch. Hopmann | Published in: Polymer Engineering and Science 2020, pp. 1-9

  www.doi.org/10.1002/pen.25383

  01 Nov 2020

• HMDSO-Based Thin Plasma Polymers as Corrosion Barrier Against NaOH Solution

  M. Jaritz, Ch. Hopmann, S. Wilski, L. Kleines, M. Rudolph, P. Awakowicz, R. Dahlmann | Published in: Journal of Materials Engineering and Performance,...

  01 Nov 2020

• 3D View of Sustainability

  L. Kraus, T. Pohl, I. Pfisterer, Ch. Hopmann, M. Facklam | Published in: Kunststoffe international 1/2020, pp. 11-15 ...

  01 Nov 2020

• Flow Paths in a tangential internal Mixer as Optimisation Possibilities for Mixing of Rubber Compounds

  Ch. Hopmann, M. Kostka, A. Lipski, M. Facklam | Published in: KGK 03/2020, pp. 55-59

  www.kgk-rubberpoint.de/en/hefte/march-2020

  01 Nov 2020

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