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Surface tension questions
As a formulator are we wanting high surface tension or low surface tension at the interface of an emulsion? I would think low due to molecular packing? Let me know what y’all think about this, I’m a little confused on this. Thank you
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4 Replies
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Low ST at oil//water interface but also take HLB into account for stability
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low surface tension for emulsion application (below 30
mN.m-1) and ultralow for microemulsion application (<1 mN.m-1). The lower
the surface/interfacial tension less energy you have to apply to your system to
emulsify. -
Surface tension is only one of a number of parameters to be considered in emulsion stability.
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It’s not related to emulsion stability, but emulsion formation. Stability is related with zeta potential, steric stabilization, viscosity of your phases, etc.
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