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Identifier 000423637
Title Tailoring the rheology of suspensions and composites by altering shape and compositions
Alternative Title Ρύθμιση της ρεολογίας αιωρημάτων και μειγμάτων μέσω αλλαγής σχήματος και αρχιτεκτονικής
Author Parisi, Daniele
Thesis advisor Βλασσόπουλος, Δημήτριος
Reviewer Benoit, Loppinet
Πετεκίδης, Γεώργιος
Βαμβακάκη, Μαρία
Zaccarelli, Emanuela
Colby Ralph H.
Cumar, Sanat
Abstract The goal of this Ph.D. project is to explore the role of different control parameters on the structural and dynamic properties of soft colloidal systems. They include particle shape and softness, concentration, temperature and introduction of depletion forces or reinforcement effects via additives. By using an interdisciplinary approach based on a broad range of experimental techniques (dynamic light scattering, rheology, X-ray and neutron scattering, piezorheοmetry, electron microscopy), in synergy with appropriate chemistry and Brownian Dynamics simulations, we aim at providing the necessary ingredients for the molecular design of materials where elasticity, yielding, relaxation > times and viscosity can be tailored at wish. It is shown > that particle softness, shape and mixing affect substantially the dynamics of suspensions and composites, their liquid to glass or gel transition and their yielding due to different particle arrangement in the dense state. Decoupling of polymeric and colloidal responses in grafted nanoparticles is also demonstrated.
Language English
Subject Colloid physics
Polymers colloids
Polymers physics
Soft condensed matter physics
Φυσική κολοειδών
Φυσική πολυμερών
Φυσική χαλαρής συμπικνωμένης ύλης
Issue date 2019-07-26
Collection   Faculty/Department--Faculty of Sciences and Engineering--Department of Materials Science and Technology--Doctoral theses
  Type of Work--Doctoral theses
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