Current publications

• 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

  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/hefte/maerz-2020

  01 Nov 2020

• The Switchover Problem and its Consequences

  Ch. Hopmann, K. Hornberg | Published in: Kunststoffe international 2/2020, pp. 40-44

  www.kunststoffe-international.com/2020-2

  02 Jul 2020

• Continuous Two-Domain Equations of State for the Description of the Pressure-Specific Volume-Temperature Behavior of Polymers

  J. Wang, Ch. Hopmann, M. Röbig, T. Hohlweck, C. Kahve, J. Alms | Published in: Polymers 2020, 12, 409, pp. 1-18

  doi: 10.3390/polym12020409

  01 Jul 2020

• Limitations of Reptation Theory for Modeling the Stress-Dependent Rheological Behavior of Polyethylene Terephthalate Above the Glass-Transition Temperature

  Ch. Hopmann, B. Twardowski, C. Bakir | Published in: POLYMER ENGINEERING AND SCIENCE 2020, pp. 1-8

  doi: 10.1002/pen.25334

  01 Jul 2020

• Comparative study of the residual stress development in HMDSN-based organosilicon and silicon oxide coatings

  M. Jaritz, Ch. Hopmann, S. Wilski, L. Kleines, L. Blanko, D. Grochla, A. Ludwig, R. Dahlmann | Published in: Journal of Physics D: Applied Physics,...

  01 Jul 2020

• Stiffness Estimates for Composites with Elliptic Cylindrical Voids

  F. Becker, Ch. Hopmann | Published in: Materials 2020, 13, 1354, pp. 1-23

  doi 10.3390/ma13061354

  01 Jul 2020

• Fatigue testing of GFRP materials for the application in automotive leaf springs

  F. Becker, Ch. Hopmann, F. Italiano, A. Girelli | Published in: Procedia Structural Integrity Volume 19 (2019), pp. 645-654

  doi:...

  31 Mar 2020

• Additive manufacturing of large functional assemblies through a hybrid approach

  Ch. Hopmann, L. Pelzer | Published in: Proceedings of the 35th International Conference of the Polymer Processing Society (PPS-35), Izmir, Turkey, 26...

  31 Mar 2020

• Print-on strategies to bond injection moulded parts with structures produced by Fused-Deposition-Modeling

  D. Kessing, A. Richter, F. Fischer, L. Pelzer, K. Dilger | Published in: International Conference on Engineering Design, ICED19, Delft, The...

  31 Mar 2020

• Influence of adjacent defects on the permeability of plasmapolymer coated plastics

  Ch. Hopmann, S. Wilski, J. Wipperfürth, F. Mitschker, P. Awakowicz, R. Dahlmann | Published in: AIP Conference Proceedings 2139, 070001 (2019)

  doi:...

  31 Mar 2020

• The influence of fibre length and fibre orientation on the impact behaviour of polypropylene

  M. Ersch, Ch. Hopmann | Published in: 77th Annual Technical Conference of the Society of Plastics Engineers, ANTEC 2019, Detroit, USA, 18 - 21 March...

  31 Mar 2020

• Prediction of effective elastic properties of a polypropylene component by an enhanced multiscale simulation of the injection moulding process

  G. Laschet, H. Nokhostin, S. Koch, M. Meunier, Ch. Hopmann | Published in: Mechanics of Materials 140 (2020), pp. 1-18

  doi:...

  31 Mar 2020

• Development of joining methods for highly filled graphite/PP composite based bipolar plates for fuel cells: Adhesive joining and welding

  P. Rzeczkowski, M. Lucia, A. Müller, M. Facklam, A. Cohnen, P. Schäfer, Ch. Hopmann, T. Hickmann, P. Pötschke, B. Krause | Published in: AIP...

  31 Mar 2020

• Gas permeation behaviour of thermoplastic vulcanisates (TPV) and ethylene-propylene-diene rubber (EPDM) under consideration of processing influences

  C. Hopmann, M. Drach, N. Yesildag, S. Gharbi, S. Sitz | Published in: RFP 2/2019, pp. 104-109

  31 Mar 2020

• Navier's slip coefficient determination of silicone rubber compound by means of high-pressure capillary rheometer

  Ch. Hopmann, M. Drach, M. Schön, M. Facklam, C. Wiesel | Published in: kgk-rubberpoint 11/12 2019, pp. 35-40

  31 Mar 2020

• Heating and vulcanisation of rubber hybrid materials through electrical resistance heating

  Ch. Hopmann, M. Kostka, M. Facklam, R. Sujatta | Published in: kgk-rubberpoint 11/12 2019, pp. 27-34

  31 Mar 2020

• Production of flame-retardant foam boards from renewable resources

  R. Breuer, M. Kostka, Ch. Hopmann | Published in: Proceedings SPE FOAMS® 2019 Conference, Valladolid, Spain, 2 - 3 October 2019, pp. 1-6

  31 Mar 2020

• Towards a digitalisation of the continuous vulcanisation process

  Ch. Hopmann, S. Kammer | Published in: IKV conference “Rubber meets Science”, Aachen, 25 - 26 June 2019

  31 Mar 2020

• Development and processing of flame retardant cellulose acetate compounds for foaming applications

  R. Breuer, Y. Zhang, R. Erdmann, O. Hernandez, S. Kabasci, M. Kostka, N. Reinhardt, M. Facklam, Ch. Hopmann | Published in: Journal of Applied Polymer...

  31 Mar 2020

• Laser beam microstructuring of magnesium sheets made of ME20 – Potentials for the in-mould assembly of plastic/magnesium hybrid joints

  S. Wurzbacher, Ch. Hopmann, C. Engelmann | Published in: JOINING PLASTICS 13 (2019), pp. 182-189

  31 Mar 2020

• Excellent resistance at reduced weight

  Ch. Hopmann, M. Kramer, S. Haase | Published in: Kunststoffe international 11/2019, pp. 28-31

  31 Mar 2020

• Process dependence of pressure-specific volume-temperature measurement for amorphous polymer: Acrylonitrile-butadiene-styrene

  J. Wang, Ch. Hopmann, M. Schmitz, T. Hohlweck | Published in: Polymer Testing 81 (2020), pp. 1-10

  doi: 10.1016/j.polymertesting.2019.106232

   

  31 Mar 2020

• Modeling of pvT behaviour of semi-crystalline polymer based on the two-domain Tait equation of state for injection moulding

  J. Wang, Ch. Hopmann, M. Schmitz, T. Hohlweck, J. Wipperfürth | Published in: Material and Design 183 (2019), pp. 1-9

  doi:...

  31 Mar 2020

• Cross-phase model-based predictive cavity pressure control in injection moulding

  S. Stemmler, M. Ay, M. Vukovic, D. Abel, J. Heinisch, Ch. Hopmann | Published in: 2019 IEEE Conference on Control Technology and Applications (CCTA),...

  31 Mar 2020

• Investigation of the foamability and resulting mechanical properties of foamed thermoplastic vulcanisates and polyurethanes

  Ch. Hopmann, Y. Zhang | Published in: Proceedings SPE FOAMS® 2019 Conference, Valladolid, Spain, 2 - 3 October 2019, pp. 1-6

  31 Mar 2020

• Dry demoulding – cost-effective PU components through permanent release coatings

  Ch. Hopmann, P. Surray, D. Schneider, K. Vissing, M. Noeske, P. Bitomsky | Published in: PU MAGAZINE – VOL. 16, No. 4, pp. 232-235

   

  14 Dec 2019

• Investigation of the influence of melt-impregnation parameters on the morphology of thermoplastic UD-tapes and a method for quantifying the same

  Ch. Hopmann, E. Wilms, C. Beste, D. Schneider, K. Fischer, S. Stender | Published in: Journal of Thermoplastic Composite Materials, S. 1-14

  doi:...

  14 Dec 2019

• Compounding – Influence of process parameters on the processing and resulting properties

  Ch. Hopmann, M. Kostka, C. Bakir | Published in: IKV-Symposium “Rubber meets Science”, 25 - 26 June 2019, Aachen

  14 Dec 2019

• Foam Injection Moulding for Thin-Walled Packaging

  Ch. Hopmann, Y. Zhang, K. Theissen | Published in: Kunststoffe international 10/ 2019, pp. 102-106

  14 Dec 2019

• New Illumination of Plastics – Yarn-Friendly Injection Molding Process for Back Molding of Optical Textiles

  Ch. Hopmann, H. Dornebusch, R. Müller, A. Zwißler | Published in: Kunststoffe International, (6-7), 2019, pp. 20-23

  14 Dec 2019

• Influence of measurement processes on pressure-specific volume-temperature relationships of semi-crystalline polymer: Polypropylene

  J. Wang, Ch. Hopmann, M. Schmitz, T. Hohlweck | Published in: Polymer Testing 78 (2019), pp. 1-9, doi: 10.1016/j.polymertesting.2019.105992

   

  14 Dec 2019

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