Large amplitude oscillatory shear and Fourier transform rheology analysis of branched polymer melts

Abstract

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Effect of mixing on LAOS properties of hard wheat flour dough

“…We deconvoluted the total stress oscillation into an elastic oscillation and a viscous oscillation by considering the in phase and out of phase component of stress (Lauger and Stettin, 2010;Hoyle et al, 2014, Stadler et al, 2008, Carmona et al, 2014Ptaszek, 2015;Ewoldt and McKinley, 2010). The Lissajous-Bodwitch curves for the elastic component of stress are plotted in the form of normalized stress and normalized elastic stress vs. normalized strain for each frequency and for the four phases of dough mixing.…”

Rheology of branched wormlike micelles

“…However, it has been demonstrated that linear rheology alone is insufficient to unambiguously distinguish different branching topologies. Others have proposed using nonlinear oscillatory rheology and extensional rheology for this purpose [20,21]. Although advances in the understanding of the rheology in various chemically branched polymers may aid in understanding the role of branching in WLM rheology and vice versa, the critical differences in the stress-bearing nature of the branching between these different systems must be carefully considered when making comparisons.…”

Analysis of dynamic oscillatory rheological properties of PP/EVA/organo-modified LDH ternary hybrids based on generalized Newtonian fluid and generalized linear viscoelastic approaches

“…There are various kinds of standard flows [1][2][3] to study the rheological properties of non-Newtonian fluids which all are similar in basics. In these methods, a material is subjected to defined stress or strain, and then, its response to the imposed stress or strain is measured.…”