Effect of nano-particles on the rheological properties of Reline

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5 Citations (Scopus)

Abstract

The emerging utilization of ionic liquid analogues in different separation and chemical applications urges a thorough understanding of their rheological properties. In this study, the rheological properties of Reline as an example of deep eutectic solvents are considered under the effects of varying shear rate, temperature and the existence of solid nanoparticles. Three different common choline chloride:urea molar ratios are considered. In its pure state, Reline is a Newtonian fluid with common rheological properties at near room temperature conditions. The addition of nanoparticles (Aerosil and Laponite) considerably affects the rheological behavior of these fluids. It is interesting to report that the variations of the dispersion properties depend on the concentration of the nanoparticles. It is noticed that at low particle concentrations, the hydrogen bonding and possible electrostatic or van der Waals interactions are dominant, resulting in the increase of the dispersion viscosity. However, the opposite effect of particle-particle interaction becomes dominant at high concentrations and the viscosity of the solution reduces significantly. The effect due to the presence of nano-particles can be utilized to control the flow characteristics of these fluids.

Original languageEnglish
Pages (from-to)256-261
Number of pages6
JournalJournal of Molecular Liquids
Volume206
DOIs
Publication statusPublished - 2015

Fingerprint

Nanoparticles
Fluids
Viscosity
nanoparticles
Ionic Liquids
Particle interactions
viscosity
Choline
Ionic liquids
Urea
Silicon Dioxide
choline
Shear deformation
Eutectics
Newtonian fluids
fluids
Electrostatics
flow characteristics
Hydrogen bonds
particle interactions

Keywords

  • Eutectic
  • Ionic liquids
  • Nano-particles
  • Reline
  • Rheology
  • Viscosity

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

Cite this

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title = "Effect of nano-particles on the rheological properties of Reline",
abstract = "The emerging utilization of ionic liquid analogues in different separation and chemical applications urges a thorough understanding of their rheological properties. In this study, the rheological properties of Reline as an example of deep eutectic solvents are considered under the effects of varying shear rate, temperature and the existence of solid nanoparticles. Three different common choline chloride:urea molar ratios are considered. In its pure state, Reline is a Newtonian fluid with common rheological properties at near room temperature conditions. The addition of nanoparticles (Aerosil and Laponite) considerably affects the rheological behavior of these fluids. It is interesting to report that the variations of the dispersion properties depend on the concentration of the nanoparticles. It is noticed that at low particle concentrations, the hydrogen bonding and possible electrostatic or van der Waals interactions are dominant, resulting in the increase of the dispersion viscosity. However, the opposite effect of particle-particle interaction becomes dominant at high concentrations and the viscosity of the solution reduces significantly. The effect due to the presence of nano-particles can be utilized to control the flow characteristics of these fluids.",
keywords = "Eutectic, Ionic liquids, Nano-particles, Reline, Rheology, Viscosity",
author = "Mjalli, {Farouq S.} and Talal Al-Wahaibi and Al-Hashmi, {Abdul Aziz}",
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doi = "10.1016/j.molliq.2015.02.040",
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journal = "Journal of Molecular Liquids",
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TY - JOUR

T1 - Effect of nano-particles on the rheological properties of Reline

AU - Mjalli, Farouq S.

AU - Al-Wahaibi, Talal

AU - Al-Hashmi, Abdul Aziz

PY - 2015

Y1 - 2015

N2 - The emerging utilization of ionic liquid analogues in different separation and chemical applications urges a thorough understanding of their rheological properties. In this study, the rheological properties of Reline as an example of deep eutectic solvents are considered under the effects of varying shear rate, temperature and the existence of solid nanoparticles. Three different common choline chloride:urea molar ratios are considered. In its pure state, Reline is a Newtonian fluid with common rheological properties at near room temperature conditions. The addition of nanoparticles (Aerosil and Laponite) considerably affects the rheological behavior of these fluids. It is interesting to report that the variations of the dispersion properties depend on the concentration of the nanoparticles. It is noticed that at low particle concentrations, the hydrogen bonding and possible electrostatic or van der Waals interactions are dominant, resulting in the increase of the dispersion viscosity. However, the opposite effect of particle-particle interaction becomes dominant at high concentrations and the viscosity of the solution reduces significantly. The effect due to the presence of nano-particles can be utilized to control the flow characteristics of these fluids.

AB - The emerging utilization of ionic liquid analogues in different separation and chemical applications urges a thorough understanding of their rheological properties. In this study, the rheological properties of Reline as an example of deep eutectic solvents are considered under the effects of varying shear rate, temperature and the existence of solid nanoparticles. Three different common choline chloride:urea molar ratios are considered. In its pure state, Reline is a Newtonian fluid with common rheological properties at near room temperature conditions. The addition of nanoparticles (Aerosil and Laponite) considerably affects the rheological behavior of these fluids. It is interesting to report that the variations of the dispersion properties depend on the concentration of the nanoparticles. It is noticed that at low particle concentrations, the hydrogen bonding and possible electrostatic or van der Waals interactions are dominant, resulting in the increase of the dispersion viscosity. However, the opposite effect of particle-particle interaction becomes dominant at high concentrations and the viscosity of the solution reduces significantly. The effect due to the presence of nano-particles can be utilized to control the flow characteristics of these fluids.

KW - Eutectic

KW - Ionic liquids

KW - Nano-particles

KW - Reline

KW - Rheology

KW - Viscosity

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