Elastic properties of liquid marbles

Edward Bormashenko; Roman Pogreb; Revital Balter; Hadas Aharoni; Yelena Bormashenko; Roman Grynyov; Leonid Mashkevych; Doron Aurbach; Oleg Gendelman

doi:10.1007/s00396-015-3627-3

Elastic properties of liquid marbles

Edward Bormashenko, Roman Pogreb, Revital Balter, Hadas Aharoni, Yelena Bormashenko, Roman Grynyov, Leonid Mashkevych, Doron Aurbach, Oleg Gendelman

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Liquid marbles are non-stick droplets coated with colloidal particles. Liquid marbles do not coalesce when pressed one to another or when colliding. The paper is devoted to the study of the quasi-elastic properties of liquid marbles under collisions. It was established that the contact time under collision is independent of the velocity of the cue marble. The liquid marble was modeled by a droplet coated by an elastic shell, representing the colloidal layer covering the marble. The elasticity of the shell is due to the capillary interaction between colloidal particles. The physical model of collisions is proposed. Pathways of viscous dissipation are discussed. Scaling laws describing the collision are derived. The proposed scaling laws governing the marbles’ collisions were verified experimentally. The contact time of the collision scales as the square root of the marbles’ volume as it occurs under bouncing of droplets. Pathways of viscous dissipation are discussed.

Original language	English
Pages (from-to)	2157-2164
Number of pages	8
Journal	Colloid and Polymer Science
Volume	293
Issue number	8
DOIs	https://doi.org/10.1007/s00396-015-3627-3
State	Published - 24 Aug 2015

Keywords

Coalescence
Collisions
Colloidal particles
Elastic shell
Liquid marbles
Scaling law

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10.1007/s00396-015-3627-3

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title = "Elastic properties of liquid marbles",

abstract = "Liquid marbles are non-stick droplets coated with colloidal particles. Liquid marbles do not coalesce when pressed one to another or when colliding. The paper is devoted to the study of the quasi-elastic properties of liquid marbles under collisions. It was established that the contact time under collision is independent of the velocity of the cue marble. The liquid marble was modeled by a droplet coated by an elastic shell, representing the colloidal layer covering the marble. The elasticity of the shell is due to the capillary interaction between colloidal particles. The physical model of collisions is proposed. Pathways of viscous dissipation are discussed. Scaling laws describing the collision are derived. The proposed scaling laws governing the marbles{\textquoteright} collisions were verified experimentally. The contact time of the collision scales as the square root of the marbles{\textquoteright} volume as it occurs under bouncing of droplets. Pathways of viscous dissipation are discussed.",

keywords = "Coalescence, Collisions, Colloidal particles, Elastic shell, Liquid marbles, Scaling law",

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doi = "10.1007/s00396-015-3627-3",

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AU - Bormashenko, Edward

AU - Pogreb, Roman

AU - Balter, Revital

AU - Aharoni, Hadas

AU - Bormashenko, Yelena

AU - Grynyov, Roman

AU - Mashkevych, Leonid

AU - Aurbach, Doron

AU - Gendelman, Oleg

PY - 2015/8/24

Y1 - 2015/8/24

N2 - Liquid marbles are non-stick droplets coated with colloidal particles. Liquid marbles do not coalesce when pressed one to another or when colliding. The paper is devoted to the study of the quasi-elastic properties of liquid marbles under collisions. It was established that the contact time under collision is independent of the velocity of the cue marble. The liquid marble was modeled by a droplet coated by an elastic shell, representing the colloidal layer covering the marble. The elasticity of the shell is due to the capillary interaction between colloidal particles. The physical model of collisions is proposed. Pathways of viscous dissipation are discussed. Scaling laws describing the collision are derived. The proposed scaling laws governing the marbles’ collisions were verified experimentally. The contact time of the collision scales as the square root of the marbles’ volume as it occurs under bouncing of droplets. Pathways of viscous dissipation are discussed.

AB - Liquid marbles are non-stick droplets coated with colloidal particles. Liquid marbles do not coalesce when pressed one to another or when colliding. The paper is devoted to the study of the quasi-elastic properties of liquid marbles under collisions. It was established that the contact time under collision is independent of the velocity of the cue marble. The liquid marble was modeled by a droplet coated by an elastic shell, representing the colloidal layer covering the marble. The elasticity of the shell is due to the capillary interaction between colloidal particles. The physical model of collisions is proposed. Pathways of viscous dissipation are discussed. Scaling laws describing the collision are derived. The proposed scaling laws governing the marbles’ collisions were verified experimentally. The contact time of the collision scales as the square root of the marbles’ volume as it occurs under bouncing of droplets. Pathways of viscous dissipation are discussed.

KW - Coalescence

KW - Collisions

KW - Colloidal particles

KW - Elastic shell

KW - Liquid marbles

KW - Scaling law

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VL - 293

SP - 2157

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JO - Colloid and Polymer Science

JF - Colloid and Polymer Science

IS - 8

ER -

Elastic properties of liquid marbles

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Keywords

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