Dresden 2011 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 43: Nanoparticles and Composite Materials I

CPP 43.1: Topical Talk

Donnerstag, 17. März 2011, 14:00–14:30, ZEU 222

(contribution withdrawn) NanoModel - Multi-Scale Modelling of Nano-Structured Polymeric Materials — •Horst Weiss — Polymer Research , BASF SE

The practice of adding micron sized inorganic filler particles to reinforce polymeric materials can be traced back to the early years of the composite industry. With synthetic methods that can produce nanometer sized fillers, resulting in an enormous increase of surface area, polymers reinforced with nanoscale particles should show vastly improved properties. Yet, experimental evidence suggests that a simple extrapolation of the design paradigms of conventional composites cannot be used to predict the behavior of nanocomposites. The origin of these differences between conventional and nanocomposites is still unknown. This, unfortunately, precludes yet any rational design. Though some property improvements have been achieved in nanocomposites, nanoparticle dispersion is difficult to control, with both thermodynamic and kinetic processes playing significant roles. This talk reports on the progress made in a European project called NanoModel. The goal of this project is to develop, implement and validate multiscale methods to compute the mechanical, thermochemical and flow behavior of nano-filled polymeric materials * based on the chemistry- of selected model systems.