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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 9: POSTER: Colloids and Nanoparticles

CPP 9.7: Poster

Montag, 26. März 2007, 16:00–18:00, Poster B

Silica Particle Distribution in Styrol Butadiene Rubber — •Gerald Johannes Schneider¹, Dietmar Göritz¹, Gerd Weidemann², Jürgen Goebbels², and Heinrich Riesemeier² — ¹Institut für Physik, Universität Regensburg, 93040 Regensburg — ²Federal Institue for Material Research and Testing (BAM), Berlin

Due to the widespread use, studying the structure of silica is of general interest for fundamental research and for applications. For example, it is well known that rubber filled with silica can be used to improve the mechanical properties of the composite material. The goal of many different material models is to describe this so called reinforcement effect. The models depend on reliable information about the structure of the filler. However, the length scales involved range from nanometers up to millimeters and thus a complete study does not exist. Using synchrotron X-ray tomography experiments we are able to study the structure of silica in rubber with a resolution of 600 nm. Thus, one can investigate the micro dispersion of silica in rubber.