Droplet elasticity in weakly compressed emulsions

D. C. Morse; T. A. Witten

doi:10.1209/0295-5075/22/7/012

Droplet elasticity in weakly compressed emulsions

D. C. Morse, T. A. Witten

Chemical Engineering and Materials Science

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Abstract

We discuss the deformation of a fluid droplet in an emulsion under external forces, such as those exerted by contact with neighboring droplets. We find that the deformation energy associated with a small droplet-droplet contact scales as f²ln(1/f) with the force/exerted between droplets. We consider the equation of state of an emulsion in which droplets are assumed to interact only via such contact forces, and obtain an osmotic compressibility which diverges logarithmically with the osmotic pressure in the limit of small pressure.

Original language	English (US)
Pages (from-to)	505-510
Number of pages	6
Journal	EPL
Volume	22
Issue number	7
DOIs	https://doi.org/10.1209/0295-5075/22/7/012
State	Published - Jun 1 1993

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abstract = "We discuss the deformation of a fluid droplet in an emulsion under external forces, such as those exerted by contact with neighboring droplets. We find that the deformation energy associated with a small droplet-droplet contact scales as f2ln(1/f) with the force/exerted between droplets. We consider the equation of state of an emulsion in which droplets are assumed to interact only via such contact forces, and obtain an osmotic compressibility which diverges logarithmically with the osmotic pressure in the limit of small pressure.",

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AU - Witten, T. A.

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AB - We discuss the deformation of a fluid droplet in an emulsion under external forces, such as those exerted by contact with neighboring droplets. We find that the deformation energy associated with a small droplet-droplet contact scales as f2ln(1/f) with the force/exerted between droplets. We consider the equation of state of an emulsion in which droplets are assumed to interact only via such contact forces, and obtain an osmotic compressibility which diverges logarithmically with the osmotic pressure in the limit of small pressure.

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Droplet elasticity in weakly compressed emulsions

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