Publications

Werlen V., Rytka C., Michaud V., A numerical approach to characterize the viscoelastic behaviour of fibre beds and to evaluate the influence of strain deviations on viscoelastic parameter extraction, Composites Part A: Applied Science and Manufacturing, Vol. 143, 2021, 106315, https://doi.org/10.1016/j.compositesa.2021.106315
Bühler R., Thommen M., Le Canut J.-M., Weber J.-F., Rytka C., Tsotra P., Highly conductive polypropylene-based composites for bipolar plates for polymer electrolyte membrane fuel cells. Fuel Cells. 2021,1–9. https://doi.org/10.1002/fuce.201900232

Arexabaleta, L.; Rytka, C.; Walker, L.; Analysis of the manufacturing process of a car bonnet using Compression Resin Transfer Moulding (CRTM). AEMAC, [S.l.], v. 3, n. 3, p. 60-67, (2019). ISSN 2531-0739.
Fairhurst A., Thommen M., Rytka C. (2019): Comparison of short and long term creep testing in high performance polymers Polymer Testing 78 105979, https://doi.org/10.1016/j.polymertesting.2019.105979
Madeleine Grossman, Dmitriy Pivovarov, Florian Bouville, Clemens Dransfeld, Kunal Masania,* and André R. Studart*, Hierarchical Toughening of Nacre-Like Composites, Advances Functional Materials 2019, 1806800

Core-shell rubber nanoparticle reinforcement and processing of high toughness fast-curing epoxy composites, Keller, A.; Chong, H. M.; Taylor, A. C.; Dransfeld, C.; Masania, K., Composites Science and Technology 2017, 147, 78-88.
Protective effect of ultrathin alumina film against diffusion of iron into carbon fiber during growth of carbon nanotubes for hierarchical composites investigated by ptychographic X-ray computed tomography,Szmyt, W.; Vogel, S.; Diaz, A.; Holler, M.; Gobrecht, J.; Calame, M.; Dransfeld, C., Carbon 2017, 115, 347-362.

Rytka, C., Opara, N., Andersen, N. K., Kristiansen, P. M. and Neyer, A. (2016), On The Role of Wetting, Structure Width, and Flow Characteristics in Polymer Replication on Micro- and Nanoscale. Mater. Eng. 301 597–609
Rytka C., Lungershausen J., Kristiansen P. M., Neyer A., (2016) 3D filling simulation of micro- and nanostructures in comparison to injection moulding trials Micromech. Microeng. 26 065018
Studer, J.; Dransfeld, C.; Masania, K., Composites Part A: An analytical model for B-stage joining and co-curing of carbon fibre epoxy composites, Applied Science and Manufacturing 2016, 87, 282-289

Rytka C., Kristiansen. P. M., Neyer A. (2015), Iso- and variothermal injection compression molding of polymer micro- and nanostructures for optical and medical applications. J. Micromech. Microeng., 25 065008
Rother, M., Barmettler, J., Reichmuth, A., Araujo, J. V., Rytka, C., Glaied, O., Pieles, U. and Bruns, N. (2015), Self-Sealing and Puncture Resistant Breathable Mem branes for Water-Evaporation Applications. Adv. Mater. 27 6620-4; https://doi.org/10.1002/adma.201502761
Thermoplastic carbon fibre-reinforced polymer recycling with electrodynamical fragmentation:
From cradle to cradle, Roux, M.; Eguémann, N.; Dransfeld, C.; Thiébaud, F.; Perreux, D., Journal of Thermoplastic Composite Materials 2015.
Fast-curing epoxy polymers with silica nanoparticles: properties and rheo-kinetic modelling, Keller, A.; Masania, K.; Taylor, A.; Dransfeld, C., Journal of Materials Science 2015, 1-16.
Plasma modified Polytetrafluoroethylene (PTFE) lubrication of α-olefin-copolymer impact-modified Polyamide 66, Hunke, H.; Soin, N.; Gebhard, A.; Shah, T.; Kramer, E.; Witan, K.; Narasimulu, A. A.; Siores, E., Wear 2015, 338–339 (0), 122-132.
Influence of plasma pre-treatment of polytetrafluoroethylene (PTFE) micropowders on the mechanical and tribological performance of Polyethersulfone (PESU)–PTFE composites, Hunke, H.; Soin, N.; Shah, T.; Kramer, E.; Witan, K.; Siores, E., Wear 2015, 328–329 (0), 480-487.
Low-Pressure H2, NH3 Microwave Plasma Treatment of Polytetrafluoroethylene (PTFE) Powders: Chemical, Thermal and Wettability Analysis, Hunke, H.; Soin, N.; Shah, T.; Kramer, E.; Pascual, A.; Karuna, M.; Siores, E., Materials 2015, 8 (5), 2258.

Surface-Structured Bacterial Cellulose with Guided Assembly-Based Biolithography (GAB), Bottan, S.; Robotti, F.; Jayathissa, P.; Hegglin, A.; Bahamonde, N.; Heredia-Guerrero, J. A.; Bayer, I. S.; Scarpellini, A.M Merker, H.; Lindenblatt, N.; Poulikakos, D.; Ferrari, A., ACS Nano 2014, 9 (1), 206-219.
Thin ply composites: Experimental characterization and modeling of size-effects, Amacher, R.; Cugnoni, J.; Botsis, J.; Sorensen, L.; Smith, W.; Dransfeld, C., Composites Science and Technology 2014, 101 (0), 121-132.
Tailoring surface nanostructures on polyaryletherketones for load-bearing implants, Urwyler, P.; Zhao, Z.; Pascual, A.; Schift, H.; Müller, B., European Journal of Nanomedicine 2014, 6 (1), 37-46.

Improved strength of carbon fibres after CNT growth by application of thin alumina layer, S. Vogel; C. Dransfeld; M. Calame; J. Gobrecht, Proceedings of Composites Week@Leuven 2013.
Reinforcement of partially cured aerospace structures with B-staged patches, J. Studer; K. Masania; C. Dransfeld, Proceedings of the 19th international conference on composite materials 2013, Montreal 2013.
High performance thermoplastic composite processing and recycling from cradle to cradle, M. Roux; N. Eguémann; L. Giger; C. Dransfeld, Proceedings of the SAMPE Europe 34th SEICO International Technical Conference , Paris 2013, 145-150.
Recycling of high performance composites with high voltage fragmentation, M. Roux; C. Dransfeld; N. Eguémann; L. Giger, Proceedings of 19th international conference on composite materials 2013, Montréal 2013.
The compression resin transfer moulding process for efficient composite manufacture, K. Masania; B. Bachmann; C. Dransfeld, Proceedings of the 19th international conference on composite materials 2013, Montreal 2013.
Effets de taille dans les matériaux discontinus obtenus é partir de bandes de fibres de carbone pré-imprégnées, N. Eguémann; F. Thiébaud; D. Perreux; C. Dransfeld, 18ème Journées nationales sur les composites 2013, Nantes 2013.
Manufacturing of complex composite parts for aerospace application with novel and recycled thermoplastic materials, N. Eguémann; L. Giger; M. Roux; C. Dransfeld; F. Thiébaud; D. Perreux, Proceedings of 19th international conference on composite materials 2013, Montréal 2013.
The modelling of toughening of epoxy polymers via silica nanoparticles: the effects of volume fraction and particles size, F.P. Bray; F.J. Dittanet; P. Guild; A. J. Kinloch; K. Masania; R.A. Pearson; A. C. Taylor, Polymer (accepted) 2013.
Simulation of the compresion resin transfer molding process for high volumen manufacturing, B. Bachmann; K. Masania; C. Dransfeld, Proceedings of Composites Week@Leuven 2013.

Bearing load introduction using B-stages reinforcements and partially cured aerospace structures, J. Studer; K. Masania; C. Dransfeld, Proceedings of the SAMPE Europe 7th SEICO International Technical Conference, Lucerne 2012.
The compression resin transfer moulding process for efficient composite manufacture, K. Masania; C. Dransfeld, Proceedings of the SAMPE Europe 7th SEICO International Technical Conference, Lucerne 2012.
Manufacturing and recycling of complex composite thermoplastic parts for aerospace application, N. Eguémann; L. Giger; M. Roux; C. Dransfeld, Proceedings of the SAMPE Europe 7th SETEC International Technical Conference, Lucerne 2012.
Fast impregnation of complex shapes for the manufacturing of high performance composites and its associated tooling, C. Dransfeld; K. Masania; E. Kramer; M. Siegfried; S. Klauser, Proceedings of the 11th International Conference on Flow Processes in Composite Materials (FPCM-11), Auckland, New Zealand 2012.

Toughening of epoxy using core-shell particles. G. Giannakopoulos; K. Masania; A. C. Taylor, Journal of Materials Science 2011, 46 (2), 327-338.
Fast impregnation of complex shapes for the manufacturing of high performance composites and its associated tooling. C. Dransfeld, Proceedings of the SAMPE Europe Technical Conference 2011, Leiden 2011.
Quantifying nanoparticle dispersion: application of the Delaunay network for objective analysis of sample micrographs, D. J. Bray; S. G. Gilmour; F. J. Guild; T. H. Hsieh; K. Masania; A. C. Taylor, Journal of Materials Science 2011, 46 (19), 6437-6452.

The mechanisms and mechanics of the toughening of epoxy polymers modified with silica nanoparticles, T. H. Hsieh; A. J. Kinloch; K. Masania; A. C. Taylor; S. Sprenger, Polymer 2010, 51 (26), 6284-6294.
The toughness of epoxy polymers and fibre composites modified with rubber microparticles and silica nanoparticles, T. H. Hsieh; A. J. Kinloch; K. Masania; J. Sohn Lee; A. C. Taylor; S. Sprenger, Journal of Materials Science 2010, 45 (5), 1193-1210.

Patents

Awards

Robin Amacher, Wayne Smith, Clemens Dransfeld, John Botsis, und Joël Cugnoni, Second place outstanding paper winner, “Thin Ply: From Size-Effect Characterization to Real Life Design”
C. Dransfeld (FHNW) im Konsortium mit der ETH Lausanne, Huntsman Advanced Materials GmbH, Decision SA und Hydros et al., JEC Innovation Award, "World's thinnest UD-prepreg and associated handling and design tools"
S. Vogel, SAMPE Europe Students Award, Vortrag zum Thema „Hierarchical Composites“
B. Bachmann, Swiss Plastics Award 2014, Bachelorarbeit: „Compression RTM – Numerical Flow Modeling“
L. Giger, Swiss Plastics Award 2014, Masterarbeit: „PEEK/CF Chips Pre-Demonstrator: EUROCOPTER Door Hinge“

About FHNW

Institute of Polymer Engineering

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