Rheology of Miscible and Immiscible Polymer Systems

Relationship between morphology and rheology of immiscible polymer blends

Rheology and Morphology Development in Immiscible Polymer Blends

In this review, progress towards a fundamental understanding of the rheologymorphology relationship in immiscible polymer blends is discussed. The behaviour of biphasic polymer fluids, containing Newtonian components and subjected to simple shear flows is relatively well understood at present. The behaviour of these “simple” blends will be discussed first, as it serves as a reference for the ot...

Lipid Composition in Miscible and Immiscible Phases

Rayleigh–Taylor turbulent mixing of immiscible, miscible and stratified fluids

We propose a simple empirical model to describe the Rayleigh–Taylor RT turbulent mixing of immiscible, miscible and stratified fluids. For immiscible fluids, the rate of momentum loss is an invariant of the flow, whereas the energy dissipation rate increases linearly with time. Turbulent diffusion, accounted for through temperature fluctuations, does not terminate mixing but slows it down signi...

Rheology and morphology of model immiscible polymer blends with monodisperse spherical particles at the interface

We show that the addition of solid particles to droplet–matrix blends of immiscible polymers induces massive changes in the rheology and the flow-induced structure even at loadings as low as 0.1 vol. %. Experiments were conducted using blends of polyethylene oxide (PEO, dispersed phase), polyisobutylene (PIB, continuous phase), and 470 nm monodisperse silica particles with two different surface...