Influence of process parameters on droplet size distribution in SPG membrane emulsification and stability of prepared emulsion droplets

By G. Vladisavljević, H. Schubert. 2003

161 citations recorded by the source corpus.

SPG membranes were used to prepare monodispersed O/W and W/O/W emulsions over a wide range of membrane wall shear stress (0.37–40 Pa), dispersed phase content (1–20 vol.%) and transmembrane pressure. Although the most uniform droplets were prepared at the membrane wall shear stress of 30 Pa, a monodispersed O/W emulsion can be even obtained at the wall shear stress of 0.37 Pa, corresponding to laminar flow regime of continuous phase inside the membrane tube. The minimum droplet size somewhat decreased with time, probably due to gradual activation of smaller pores. There was no significant difference in the size distribution curve of pure oil droplets of O/W emulsions and W/O drops of W/O/W emulsions, if they were both prepared under the same conditions. No significant change in droplet size distribution of prepared O/W emulsions was observed during the storage time of up to 159 days.

Subfields: Biomedical Engineering, Materials Chemistry, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/a84a18661343848f87e4be96fab8ddb70fc774da

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In Biomedical Engineering

1. I. Kobayashi
2. M. Nakajima
3. M. Shimizu
4. G. Vladisavljević
5. T. Nakashima

In Materials Chemistry

1. I. Kobayashi
2. M. Nakajima
3. M. Shimizu
4. G. Vladisavljević
5. T. Nakashima

In Water Science and Technology

1. I. Kobayashi
2. M. Nakajima
3. G. Vladisavljević

Citations in the corpus

• Production of uniform droplets using membrane, microchannel and microfluidic emulsification devices (2012, methodology): “Uniformly sized droplets can only be formed in the dripping regime (Vladisavljević et al., 2004a; Vladisavljević and Schubert, 2002b; 2003b).”
• Preparation of monodisperse multiple emulsions at high production rates by multi-stage premix membrane emulsification (2004, background): “In direct ME with SPG membranes, the mean droplet size is typically 3-4 times higher than the mean pore size [15, 10].”