• Formulating

  Surface tension questions

  Posted by chickenskin on January 18, 2017 at 1:48 pm

  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

  jeremien replied 7 years, 3 months ago 4 Members · 4 Replies
• 4 Replies

• 

  drbobverdient-biz

  Member

  January 18, 2017 at 2:40 pm

  Low ST at oil//water interface but also take HLB into account for stability 

• 

  jeremien

  Member

  January 18, 2017 at 5:07 pm

  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. 

• 

  johnb

  Member

  January 19, 2017 at 7:58 am

  Surface tension is only one of a number of parameters to be considered in emulsion stability.

• 

  jeremien

  Member

  January 19, 2017 at 9:29 am

  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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