Role of fractal features in the structure-property relationships of carbon black filled polymers
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Role of fractal features in the structure-property relationships of carbon black filled polymers Françoise Ehrburger-Dolle 1,2, Manuela Hindermann-Bischoff1 , Erik Geissler2 , Cyrille Rochas 2 , Françoise Bley3 and Frédéric Livet3 1 Institut de Chimie des Surfaces et Interfaces, CNRS, BP 2488, 68057 Mulhouse cedex, France 2 Laboratoire de Spectrométrie Physique, CNRS UMR 5588-Université J. Fourier de Grenoble, BP 87, 38402 Saint-Martin d'Hères cedex, France 3 Laboratoire de Thermodynamique et Physico-Chimie Métallurgiques, CNRS UMR 4777, Institut National Polytechnique de Grenoble, B.P. 75, 38402 Saint-Martin d'Hères cedex, France. ABSTRACT Carbon black is widely used as a filler in order to modify the mechanical or the electrical properties of polymers. Such composites display significant non-linear effects. Moreover, examination of the large number of papers devoted to the physical properties of carbon black filled polymers indicates that each composite, even composites apparently consisting of similar matrixes and similar carbon blacks, may behave differently when prepared by different mixing methods. The present work aims to show that these particular behaviors can be related to the fact that carbon blacks used for composites are mass fractals of low dimensionality (Df
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