Institute of Macromolecular Chemistry

Topic details

Topic Interface control in polymer composites – rheology and processing effects
Supervisor Zdeněk Starý, Ph.D.
Department Polymer Processing
Description Polymer composites are materials with a high application potential in advanced technologies. The topic concerns with a control of polymer-filler interface by surface modification of filler particles and its effect on rheological properties of composites with a particular attention to their elasticity in the molten state. Although the effects induced by the presence of filler particles on melt elasticity are reported in literature, understanding of their origins and mechanisms is still lacking. Systematic study of the influence of particle size, concentration and surface modification on melts elasticity will be performed. Moreover, processing properties of the composites including flow instabilities analysis will be studied. The composites will be studied experimentally by different rheological techniques (oscillatory shear, capillary rheometry). Structure of the composites will be visualized by electron microscopy.