Flow of solutions of hydroxypropyl guar-poly(ethylene oxide) mixtures through a porous medium

A. C. Gamboa, Avelino E Saez, A. J. Müller

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In flow through porous media, solutions of poly(ethylene oxide) (PEO) exhibit extension thickening, whereas hydroxypropyl guar (HPG) solutions are shear-thinning at high concentrations. The results show that the extension-thickening exhibited by PEO solutions becomes less critical with increasing flow rate as the concentration of HPG in the solution is increased. At high concentrations of HPG, the presence of PEO inhibits the shear-thinning behaviour, without increasing the apparent viscosity of the solution. The presence of HPG reduces the rate and extent of degradation of PEO in the flowing solution.

Original languageEnglish (US)
Pages (from-to)717-724
Number of pages8
JournalPolymer Bulletin
Volume33
Issue number6
DOIs
StatePublished - Nov 1994
Externally publishedYes

Fingerprint

ethylene oxide
Polyethylene oxides
Porous materials
shear thinning
Shear thinning
hydroxypropyl guar
flow velocity
Flow rate
Viscosity
viscosity
degradation
Degradation

Keywords

  • hydroxypropyl guar
  • molecular flexibility
  • poly(ethylene oxide)
  • Polymer blends
  • porous media

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Flow of solutions of hydroxypropyl guar-poly(ethylene oxide) mixtures through a porous medium. / Gamboa, A. C.; Saez, Avelino E; Müller, A. J.

In: Polymer Bulletin, Vol. 33, No. 6, 11.1994, p. 717-724.

Research output: Contribution to journalArticle

@article{8d9b1377f4374cff89e5688cff4b1977,
title = "Flow of solutions of hydroxypropyl guar-poly(ethylene oxide) mixtures through a porous medium",
abstract = "In flow through porous media, solutions of poly(ethylene oxide) (PEO) exhibit extension thickening, whereas hydroxypropyl guar (HPG) solutions are shear-thinning at high concentrations. The results show that the extension-thickening exhibited by PEO solutions becomes less critical with increasing flow rate as the concentration of HPG in the solution is increased. At high concentrations of HPG, the presence of PEO inhibits the shear-thinning behaviour, without increasing the apparent viscosity of the solution. The presence of HPG reduces the rate and extent of degradation of PEO in the flowing solution.",
keywords = "hydroxypropyl guar, molecular flexibility, poly(ethylene oxide), Polymer blends, porous media",
author = "Gamboa, {A. C.} and Saez, {Avelino E} and M{\"u}ller, {A. J.}",
year = "1994",
month = "11",
doi = "10.1007/BF00296087",
language = "English (US)",
volume = "33",
pages = "717--724",
journal = "Polymer Bulletin",
issn = "0170-0839",
publisher = "Springer Verlag",
number = "6",

}

TY - JOUR

T1 - Flow of solutions of hydroxypropyl guar-poly(ethylene oxide) mixtures through a porous medium

AU - Gamboa, A. C.

AU - Saez, Avelino E

AU - Müller, A. J.

PY - 1994/11

Y1 - 1994/11

N2 - In flow through porous media, solutions of poly(ethylene oxide) (PEO) exhibit extension thickening, whereas hydroxypropyl guar (HPG) solutions are shear-thinning at high concentrations. The results show that the extension-thickening exhibited by PEO solutions becomes less critical with increasing flow rate as the concentration of HPG in the solution is increased. At high concentrations of HPG, the presence of PEO inhibits the shear-thinning behaviour, without increasing the apparent viscosity of the solution. The presence of HPG reduces the rate and extent of degradation of PEO in the flowing solution.

AB - In flow through porous media, solutions of poly(ethylene oxide) (PEO) exhibit extension thickening, whereas hydroxypropyl guar (HPG) solutions are shear-thinning at high concentrations. The results show that the extension-thickening exhibited by PEO solutions becomes less critical with increasing flow rate as the concentration of HPG in the solution is increased. At high concentrations of HPG, the presence of PEO inhibits the shear-thinning behaviour, without increasing the apparent viscosity of the solution. The presence of HPG reduces the rate and extent of degradation of PEO in the flowing solution.

KW - hydroxypropyl guar

KW - molecular flexibility

KW - poly(ethylene oxide)

KW - Polymer blends

KW - porous media

UR - http://www.scopus.com/inward/record.url?scp=0028546729&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028546729&partnerID=8YFLogxK

U2 - 10.1007/BF00296087

DO - 10.1007/BF00296087

M3 - Article

AN - SCOPUS:0028546729

VL - 33

SP - 717

EP - 724

JO - Polymer Bulletin

JF - Polymer Bulletin

SN - 0170-0839

IS - 6

ER -