Time-dependent viscous flow behavior of a hydrophobic fumed silica suspension

Jorge H. Sánchez; Francisco J. Rubio-Hernández; Nicolás M. Páez-Flor

doi:10.3390/pr9050807

Time-dependent viscous flow behavior of a hydrophobic fumed silica suspension

Jorge H. Sánchez, Francisco J. Rubio-Hernández, Nicolás M. Páez-Flor

Producción científica: Contribución a una revista › Artículo en revista científica indexada › revisión exhaustiva

4 Citas (Scopus)

Resumen

The viscous flow behavior of a 12.5 vol% hydrophobic fumed silica (Aerosil® R816) suspension in polypropylene glycol of low molecular weight (PPG400) was studied in a stress-controlled rheometer. The steady flow curve showed shear thickening between two shear thinning regions. Time-dependent viscosity response provoked by step changes in shear stresses corresponding to the shear-thickening region apparently agrees with thixotropic behavior just after the very initial stages are surpassed. Almost instantaneous jamming can justify misinterpretation of the results.

Idioma original	Inglés
Número de artículo	807
Publicación	Processes
Volumen	9
N.º	5
DOI	https://doi.org/10.3390/pr9050807
Estado	Publicada - may. 2021

Nota bibliográfica

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Tipos de Productos Minciencias

Artículos de investigación con calidad D

Acceder al documento

10.3390/pr9050807

Citar esto

@article{5aed593c554444589b805829e952d623,

title = "Time-dependent viscous flow behavior of a hydrophobic fumed silica suspension",

abstract = "The viscous flow behavior of a 12.5 vol% hydrophobic fumed silica (Aerosil{\textregistered} R816) suspension in polypropylene glycol of low molecular weight (PPG400) was studied in a stress-controlled rheometer. The steady flow curve showed shear thickening between two shear thinning regions. Time-dependent viscosity response provoked by step changes in shear stresses corresponding to the shear-thickening region apparently agrees with thixotropic behavior just after the very initial stages are surpassed. Almost instantaneous jamming can justify misinterpretation of the results.",

keywords = "Hydrophobic fumed silica, Polypropylene glycol, Shear-thickening, Time-dependent shear viscosity",

author = "S{\'a}nchez, {Jorge H.} and Rubio-Hern{\'a}ndez, {Francisco J.} and P{\'a}ez-Flor, {Nicol{\'a}s M.}",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = may,

doi = "10.3390/pr9050807",

language = "Ingl{\'e}s",

volume = "9",

journal = "Processes",

issn = "2227-9717",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "5",

}

TY - JOUR

T1 - Time-dependent viscous flow behavior of a hydrophobic fumed silica suspension

AU - Sánchez, Jorge H.

AU - Rubio-Hernández, Francisco J.

AU - Páez-Flor, Nicolás M.

PY - 2021/5

Y1 - 2021/5

N2 - The viscous flow behavior of a 12.5 vol% hydrophobic fumed silica (Aerosil® R816) suspension in polypropylene glycol of low molecular weight (PPG400) was studied in a stress-controlled rheometer. The steady flow curve showed shear thickening between two shear thinning regions. Time-dependent viscosity response provoked by step changes in shear stresses corresponding to the shear-thickening region apparently agrees with thixotropic behavior just after the very initial stages are surpassed. Almost instantaneous jamming can justify misinterpretation of the results.

AB - The viscous flow behavior of a 12.5 vol% hydrophobic fumed silica (Aerosil® R816) suspension in polypropylene glycol of low molecular weight (PPG400) was studied in a stress-controlled rheometer. The steady flow curve showed shear thickening between two shear thinning regions. Time-dependent viscosity response provoked by step changes in shear stresses corresponding to the shear-thickening region apparently agrees with thixotropic behavior just after the very initial stages are surpassed. Almost instantaneous jamming can justify misinterpretation of the results.

KW - Hydrophobic fumed silica

KW - Polypropylene glycol

KW - Shear-thickening

KW - Time-dependent shear viscosity

UR - http://www.scopus.com/inward/record.url?scp=85106579450&partnerID=8YFLogxK

U2 - 10.3390/pr9050807

DO - 10.3390/pr9050807

M3 - Artículo en revista científica indexada

AN - SCOPUS:85106579450

SN - 2227-9717

VL - 9

JO - Processes

JF - Processes

IS - 5

M1 - 807

ER -

Time-dependent viscous flow behavior of a hydrophobic fumed silica suspension

Resumen

Nota bibliográfica

Tipos de Productos Minciencias

Acceder al documento

Huella

Citar esto