Dresden 2020 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 98: Composites and Functional Polymer Hybrids

CPP 98.4: Vortrag

Donnerstag, 19. März 2020, 15:45–16:00, ZEU 114

Molecular dynamics simulations of magnetoactive elastomers — •Alla Dobroserdova1, Malte Schümann2, Dmitry Borin2, Pedro Sanchez1,3, Stefan Odenbach2, and Sofia Kantorovich1,41Ural Federal University, Ekaterinburg, Russia — 2Technische Universität Dresden, Dresden, Germany — 3Helmholz-Zentrum Dresden-Rosendorf, Dresden, Germany — 4University of Vienna, Vienna, Austria

Magnetic elastomers are the systems consisting of magnetic particles distributed in a nonmagnetic elastic matrix. We perform Molecular Dynamics Simulations to investigate the influence of particle shape, their magnetic interactions, their coupling with polymer matrix and external magnetic field on the structural and magnetic properties of these systems. In order for the results to be predictive for a realistic class of magnetic elastomers, we match simulation parameters to those obtained from theological, tomographic and magnetic measurements. Based on the qualitative agreement between simulations and experiment, we can explain asymmetry of magnetic hysteresis loops, particle orientational ordering in field and shift of the FORC diagram maxima.

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