CO-stabilisation mechanisms of nanoparticles and surfactants in Pickering Emulsions produced by membrane emulsification

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CO-stabilisation mechanisms of nanoparticles and surfactants in Pickering Emulsions produced by membrane emulsification. / Yuan, Qingchun; Williams, Richard A.

In: Journal of Membrane Science, Vol. 497, 01.01.2016, p. 221-228.

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@article{75330b3d30504fa7a88f301077eee3d9,
title = "CO-stabilisation mechanisms of nanoparticles and surfactants in Pickering Emulsions produced by membrane emulsification",
abstract = "Two different membrane emulsification methods were used to study mechanisms for co-stabilisation of emulsions, by either electrostatic or steric stabilised nanoparticles with anionic, cationic or non-ionic surfactants. The experimental results demonstrated the existence of two distinct co-stabilisation mechanisms that arise from interactions of the nanoparticles and surfactant molecules. When significant interaction is not involved, independent competitive adsorption of nanoparticles and surfactant molecules occurs spontaneously to stabilise droplets in formation. The adsorption/desorption equilibrium between surfactant molecules determines the longevity of the droplet stability. When the surfactant molecule reacts with the nanoparticle surface, the resultant surface modification appears to generate faster wetting kinetics for nanoparticles at the oil/water interface and yields enhanced stabilisation. The paper discusses the implications of controlling these interactions for emulsion production membrane systems.",
author = "Qingchun Yuan and Williams, {Richard A.}",
year = "2016",
month = jan,
day = "1",
doi = "10.1016/j.memsci.2015.09.028",
language = "English",
volume = "497",
pages = "221--228",
journal = "Journal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - CO-stabilisation mechanisms of nanoparticles and surfactants in Pickering Emulsions produced by membrane emulsification

AU - Yuan, Qingchun

AU - Williams, Richard A.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Two different membrane emulsification methods were used to study mechanisms for co-stabilisation of emulsions, by either electrostatic or steric stabilised nanoparticles with anionic, cationic or non-ionic surfactants. The experimental results demonstrated the existence of two distinct co-stabilisation mechanisms that arise from interactions of the nanoparticles and surfactant molecules. When significant interaction is not involved, independent competitive adsorption of nanoparticles and surfactant molecules occurs spontaneously to stabilise droplets in formation. The adsorption/desorption equilibrium between surfactant molecules determines the longevity of the droplet stability. When the surfactant molecule reacts with the nanoparticle surface, the resultant surface modification appears to generate faster wetting kinetics for nanoparticles at the oil/water interface and yields enhanced stabilisation. The paper discusses the implications of controlling these interactions for emulsion production membrane systems.

AB - Two different membrane emulsification methods were used to study mechanisms for co-stabilisation of emulsions, by either electrostatic or steric stabilised nanoparticles with anionic, cationic or non-ionic surfactants. The experimental results demonstrated the existence of two distinct co-stabilisation mechanisms that arise from interactions of the nanoparticles and surfactant molecules. When significant interaction is not involved, independent competitive adsorption of nanoparticles and surfactant molecules occurs spontaneously to stabilise droplets in formation. The adsorption/desorption equilibrium between surfactant molecules determines the longevity of the droplet stability. When the surfactant molecule reacts with the nanoparticle surface, the resultant surface modification appears to generate faster wetting kinetics for nanoparticles at the oil/water interface and yields enhanced stabilisation. The paper discusses the implications of controlling these interactions for emulsion production membrane systems.

U2 - 10.1016/j.memsci.2015.09.028

DO - 10.1016/j.memsci.2015.09.028

M3 - Article

VL - 497

SP - 221

EP - 228

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

ER -