Journal ArticleDOI
The wetting and spreading of nanofluids on solids: Role of the structural disjoining pressure
TLDR
In this article, the authors review the progress made in the wetting and spreading of nanofluids over solid surfaces with an emphasis on the complex interactions between the particles in the nanoparticles and with the solid substrate.Abstract:
The wetting and spreading behavior of pure liquids over solid surfaces changes if liquids contain nanosized spherical particles or surfactant micelles, globular proteins and macromolecules. Recent studies on the spreading of nanofluids have demonstrated the inadequacy of well-known concepts of the spreading and adhesion of pure liquids on solid surfaces in understanding nanofluid spreading behavior. This paper reviews the progress made in the wetting and spreading of nanofluids over solid surfaces with an emphasis on the complex interactions between the particles in the nanofluid and with the solid substrate, as well as the spreading of thin nanofluid films containing nanoparticles on hydrophilic surfaces driven by the structural disjoining pressure gradient. The spreading droplet advances as a series of distinct nanoparticle layers.read more
Citations
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Journal ArticleDOI
A coreflood investigation of nanofluid enhanced oil recovery
TL;DR: In this article, the structural disjoining pressure mechanism, such as lowering interfacial tensions (IFT) and altering wettability, were studied in low to high-permeability sandstone (ss) rocks.
Wettability : fundamentals and surface forces
TL;DR: In this paper, a review of the literature available outside the petroleum industry concerning wettability is presented, including van der Waal and electrostatic forces, as well as hydrogen bonding and ion/water interactions.
Journal ArticleDOI
Polymer-Coated Nanoparticles for Enhanced Oil Recovery
TL;DR: The polymer-coated nanoparticles (PNPs) are an emerging class of materials that may be superior to nanoparticles for EOR due to improved solubility and stability, greater stabilization of foams and emulsions, and more facile transport through porous media as mentioned in this paper.
Journal ArticleDOI
An overview of chemical enhanced oil recovery: recent advances and prospects
TL;DR: In this article, an up-to-date overview of chemical enhanced oil recovery (EOR) with detailed explanation of the chemicals used, and the mechanism governing their oil recovery application have been discussed.
Journal ArticleDOI
Stability of nanofluid: A review
TL;DR: In this paper, a review of different aspects of nanofluid stability starting from the preparation stage till implementation in practical applications is presented, focusing on the stability as a function of operating conditions such as high temperature, pressure, confinement, composition, salinity, external magnetic field and shear rate.
References
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Journal ArticleDOI
Wetting: statics and dynamics
TL;DR: In this paper, the authors present an attempt towards a unified picture with special emphasis on certain features of "dry spreading": (a) the final state of a spreading droplet need not be a monomolecular film; (b) the spreading drop is surrounded by a precursor film, where most of the available free energy is spent; and (c) polymer melts may slip on the solid and belong to a separate dynamical class, conceptually related to the spreading of superfluids.
MonographDOI
Contact angle, wettability, and adhesion
TL;DR: Good as mentioned in this paper pointed out that Galileo in the 17 century was quite likely the first investigator to observe contact angle behavior with his experiment of floating a thin gold leaf on top of a water surface.
Journal ArticleDOI
Applications of Nanofluids: Current and Future:
Kaufui V. Wong,Omar De Leon +1 more
TL;DR: In this article, the authors describe suspensions of nanoparticles in fluids that show significant enhancement of their properties at modest nanoparticle concentrations, i.e., at nanoparticles' concentrations.
Journal ArticleDOI
Spreading of nanofluids on solids
Darsh T. Wasan,Alex D. Nikolov +1 more
TL;DR: Video microscopy is used to demonstrate both the two-dimensional crystal-like ordering of charged nanometre-sized polystyrene spheres in water, and the enhanced spreading dynamics of a micellar fluid, at the three-phase contact region, which suggest a new mechanism for oily soil removal—detergency.
Journal ArticleDOI
Wettability: Fundamentals and Surface Forces
TL;DR: In this paper, the surface forces are expressed as a disjoining pressure isotherm, and its integral is the specific interaction potential isotherms, which can be used to determine the stable and metastable film-thickness profiles at the three-phase contact region for a given capillary pressure and/or curvature of the substrate.