Xanthan gum and scleroglucan, two rod-like polysaccharide hydrocolloids, are compared using a wide range of instrumental techniques methods: steady shear flow, small amplitude oscillatory shear, first normal stress difference, capillary break-up soft-contact tribology. The aqueous solutions these hydrocolloids with similar flow viscoelastic profile show marked differences in time apparent exten...

We revisit the rapid stretching of a liquid filament under the action of a constant imposed tensile force, a problem which was first considered by Matta & Tytus [JNNFM vol. 35, pp 215-229, 1990]. A liquid bridge formed from a viscous Newtonian fluid or from a dilute polymer solution is first established between two cylindrical disks. The upper disk is held fixed and may be connected to a force ...

Abstract Filament stretching rheometry is a prominent experimental method to determine rheological properties in extensional flow whereby the separating plates extension rate. In literature, several correction factors that can compensate for errors introduced by shear contribution near have been and validated linear viscoelastic regime. this work, systematic analysis conducted if material-indep...

We have prepared a viscous bicontinuous microemulsion consisting of water / [20 wt% POE-GIS + 30 wt% PEPTME + 47.5 wt% POE/POP-PDMS + 2.5 wt% OA)] / DMPS system. A pseudoternary phase diagram was constructed for the mixture, and the bicontinuous microemulsion phase was characterized by means of rheometry and freeze-fracture transmission electron microscopy (FF-TEM).

Polymer processing parameters may considerably affect final product characteristic as, if properly chosen, these lead to products with optimal properties. The aim of this work is evaluate the rheological characteristics poly(ethylene terephthalate) (PET) by torque rheometry, as well estimate its incipient degradation rate during in an internal laboratory mixer. In order temperature coefficient ...

Despite the great demand for characterization of interfacial rheology in academic and industrial research, study is still scarce compared to its counterpart bulk rheometry limited only specialized laboratories. One biggest hurdles impeding broad application delicate design high cost rheometers. Here, we propose a new miniature magnetic rod stress rheometer (mini-ISR), which uses pair small perm...