Rheo-PIV analysis of the steady torsional parallel-plate flow of a viscoplastic microgel with wall slip

2022 ◽  
Vol 66 (1) ◽  
pp. 31-48
Author(s):  
Esteban F. Medina-Bañuelos ◽  
Benjamín M. Marín-Santibáñez ◽  
José Pérez-González
Keyword(s):  
Parallel Plate ◽  
Wall Slip ◽  
Piv Analysis

Wall Slip during the Flow of Carbopol Solutions through a Parallel Plate Channel

2008 ◽  
Author(s):  
Paulo R. de Souza Mendes ◽  
Jonathan Pédron ◽  
Renata A. B. Pereira ◽  
Albert Co ◽  
Gary L. Leal ◽  
...  
Keyword(s):  
Parallel Plate ◽  
Wall Slip ◽  
Plate Channel

On the wall slip phenomenon of elastomers in oscillatory shear measurements using parallel-plate rotational rheometry: I. Detecting wall slip

2017 ◽  
Vol 61 ◽  
pp. 430-440 ◽  
Author(s):  
Bastian L. Walter ◽  
Jean-Paul Pelteret ◽  
Joachim Kaschta ◽  
Dirk W. Schubert ◽  
Paul Steinmann
Keyword(s):  
Parallel Plate ◽  
Wall Slip ◽  
Oscillatory Shear ◽  
Slip Phenomenon

Anomalous Wall Effects in Parallel Plate Torsional Flow of Highly Concentrated Emulsions

1999 ◽  
Author(s):  
Rajinder Pal
Keyword(s):  
Parallel Plate ◽  
Rheological Behaviour ◽  
Wall Slip ◽  
Nonlinear Behaviour ◽  
Parallel Plates ◽  
Wall Effects ◽  
Water Emulsion ◽  
Highly Nonlinear ◽  
Oil In Water Emulsion ◽  
Plate Geometry

Abstract The rheological behaviour of a highly concentrated oil-in-water emulsion (75.1% by volume oil) was studied employing parallel plate torsional flows, with main emphasis on the wall effects. The steady shear and oscillatory shear data were collected with a controlled stress rheometer using smooth and serrated parallel plate geometries. The effect of the gap-height (between the parallel plates) on the rheological properties was also determined. When a serrated parallel plate geometry is used, the wall (slip) effects are found to be negligible. The data obtained by employing various gap heights overlap with each other. However, in a smooth parallel plate geometry, the emulsion behaviour is strongly affected by slip at the wall. The data obtained by employing various gap heights are different. In the absence of wall effects, the emulsion exhibits a highly nonlinear behaviour characterized by yield stress and high values of storage modulus.

On the wall slip phenomenon of elastomers in oscillatory shear measurements using parallel-plate rotational rheometry: II. Influence of experimental conditions

2017 ◽  
Vol 61 ◽  
pp. 455-463 ◽  
Author(s):  
Bastian L. Walter ◽  
Jean-Paul Pelteret ◽  
Joachim Kaschta ◽  
Dirk W. Schubert ◽  
Paul Steinmann
Keyword(s):  
Parallel Plate ◽  
Wall Slip ◽  
Oscillatory Shear ◽  
Experimental Conditions ◽  
Slip Phenomenon

The Structure of Radiation Cross-Linked Poly (ethylene oxide) Gels

1971 ◽  
Vol 29 ◽  
pp. 76-77
Author(s):  
C. E. Cluthe ◽  
G. G. Cocks
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Parallel Plate ◽  
Average Molecular Weight ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Nitrogen Gas ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Initial Viscosity

Aqueous solutions of a 1 weight-per cent poly (ethylene oxide) (PEO) were degassed under vacuum, transferred to a parallel plate viscometer under a nitrogen gas blanket, and exposed to Co60 gamma radiation. The Co60 source was rated at 4000 curies, and the dose ratewas 3.8x105 rads/hr. The poly (ethylene oxide) employed in the irradiations had an initial viscosity average molecular weight of 2.1 x 106.The solutions were gelled by a free radical reaction with dosages ranging from 5x104 rads to 4.8x106 rads.

Enhanced performance of supercapacitors by constructing a “mini parallel-plate capacitor” in an electrode with high dielectric constant materials

2020 ◽  
Vol 8 (32) ◽  
pp. 16661-16668
Author(s):  
Huayao Tu ◽  
Shouzhi Wang ◽  
Hehe Jiang ◽  
Zhenyan Liang ◽  
Dong Shi ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Carbon Fiber ◽  
Parallel Plate ◽  
Sandwich Structure ◽  
High Dielectric Constant ◽  
Parallel Plate Capacitor ◽  
Plate Capacitor ◽  
Fiber Metal ◽  
High Dielectric ◽  
Mini Plate

The carbon fiber/metal oxide/metal oxynitride layer sandwich structure is constructed in the electrode to form a mini-plate capacitor. High dielectric constant metal oxides act as dielectric to increase their capacitance.

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