Soft particles at a fluid interface

Hadi Mehrabian, Jens Harting, Jacco H. Snoeijer*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)

Abstract

Particles added to a fluid interface can be used as a surface stabilizer in the food, oil and cosmetic industries. As an alternative to rigid particles, it is promising to consider highly deformable particles that can adapt their conformation at the interface. In this study we compute the shapes of soft elastic particles using molecular dynamics simulations of a cross-linked polymer gel, complemented by continuum calculations based on linear elasticity. It is shown that the particle shape is not only affected by the Young's modulus of the particle, but also strongly depends on whether the gel is partially or completely wetting the fluid interface. We find that the molecular simulations for the partially wetting case are very accurately described by the continuum theory. By contrast, when the gel is completely wetting the fluid interface the linear theory breaks down and we reveal that molecular details have a strong influence on the equilibrium shape.

Original languageEnglish
Pages (from-to)1062-1073
Number of pages12
JournalSoft matter
Volume12
Issue number4
DOIs
Publication statusPublished - 2016

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Wetting
Gels
Fluids
fluids
wetting
Cosmetics
gels
Conformations
Molecular dynamics
Elasticity
Polymers
Oils
Elastic moduli
continuums
Computer simulation
food
Industry
modulus of elasticity
elastic properties
simulation

Cite this

Mehrabian, Hadi ; Harting, Jens ; Snoeijer, Jacco H. / Soft particles at a fluid interface. In: Soft matter. 2016 ; Vol. 12, No. 4. pp. 1062-1073.
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Mehrabian, H, Harting, J & Snoeijer, JH 2016, 'Soft particles at a fluid interface', Soft matter, vol. 12, no. 4, pp. 1062-1073. https://doi.org/10.1039/c5sm01971k

Soft particles at a fluid interface. / Mehrabian, Hadi; Harting, Jens; Snoeijer, Jacco H.

In: Soft matter, Vol. 12, No. 4, 2016, p. 1062-1073.

Research output: Contribution to journalArticleAcademicpeer-review

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