Abstract
• Comparison of two extreme HLB values surface-active species • Performance of Pickering particles is improved by addition of surfactants. • Formation of mixed-emulsifier systems with enhanced interfacial activity • Synergy between particles and surfactant can lead to smaller droplet size emulsions. • Surfactant's HLB value and concentration are the two most important parameters.
Highlights
Over the last two decades there has been an upsurge of research interest in the study of Pickering emulsions
Hydroxypropyl methylcellulose (HPMC) is a hydrophobic cellulose derivative approved for use in foodstuffs; e.g. baked goods, sauces, dressings, and whipped toppings [6]
When used in conjunction with colloidal particles, low molecular weight surfactants have the potential to provide emulsions with much lower droplet sizes compared to systems where each of these entities is used as the sole interfacial stabiliser [11]
Summary
Over the last two decades there has been an upsurge of research interest in the study of Pickering emulsions. When used in conjunction with colloidal particles, low molecular weight surfactants (even at relatively low concentrations) have the potential to provide emulsions with much lower droplet sizes compared to systems where each of these entities is used as the sole interfacial stabiliser [11].
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