Regensburg 2013 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 12: Poster: Nanoparticles and Composite Materials

CPP 12.8: Poster

Montag, 11. März 2013, 17:30–19:30, Poster C

Novel approach for the rapid thermal processing of polymer-metal composites using 2.45 GHz microwave radiation — •Andreas Wurm¹, Radu Nicula², Kotaro Ishizaki², Manuela Stir², Sebastien Vaucher², Evgeny Zhuravlev¹, and Christoph Schick¹ — ¹University of Rostock, Institute of Physics — ²Swiss Federal Laboratories for Materials Science and Technology - Empa, Advanced Materials Processing

In contrast with traditional polymer melt-processing methods, new opportunities for improved material properties are sought by various R&D and industrial groups through the use of powder processing technologies, in particular for polymer-matrix composites. For example, in the field of new biomaterials for acetabular cup prosthetics, UHMWPE composites comprising AlCuFe quasicrystalline (QC) particles were shown to exhibit significantly improved wear loss properties compared to pure UHMWPE or Al2O3/UHMWPE composites, without loosing the excellent biocompatibility of the UHMWPE matrix. Further improvement of the wear resistance of such composite materials is nowadays sought in the better anchoring of the metal particles to the polymer matrix. Towards this objective, a novel rapid thermal processing approach is proposed that mainly exploits the selective absorption of microwave field energy by the metal particle constituent of the composite material.