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Nanocomposite: Effect of local perturbations on the properties of the material

Abstract : Creation of new materials with tailor-made properties can be achieved by the combination of two, three or more components. Their development, improvement in performance and the extension of their functionalities have enlarged the diversity of these materials: The desired purpose will define the properties of the used materials and not vice-versa.
The inclusion of nanoparticles in a polymer can lead quantitatively via the occurring local structure and qualitatively via the reactive surfaces of the particles to new physical properties, which are not just a simple superposition of the properties of the single components. The interactions between the nanoparticles´ surfaces and the polymer molecules are the reason for the formation of interphases, which differ in their specificities from the polymer bulk.
To understand the effect of nanoparticles on the mechanical, optical and dielectric properties of composites, and moreover the formations of interphases, an, at first believed, rather simple nanocomposite produced by including Al2O3- or SiO2- nanoparticles in an industrially common epoxy resin is studied. Such materials, a priori simples show surprising results, which will be discussed in this PhD Thesis.
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Contributor : Ravi Bactavatchalou <>
Submitted on : Tuesday, March 25, 2008 - 12:39:21 PM
Last modification on : Friday, November 13, 2020 - 8:36:07 AM
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  • HAL Id : tel-00266719, version 1



Ravindrakumar Bactavatchalou. Nanocomposite: Effect of local perturbations on the properties of the material. Material chemistry. Université Henri Poincaré - Nancy I, 2007. German. ⟨tel-00266719⟩



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