• Science

  Emulsion dilemma

  Posted by Chemist77 on June 18, 2014 at 11:51 pm

  As stupid as it may sound but somehow I am compelled to ask if the emulsion instability (in general) over a period of time can be attributed to charge incompatibility?? Eventually its all a matter of charges, am I horribly wrong in my assumption????

  MakingSkincare replied 10 years, 2 months ago 2 Members · 1 Reply
• 1 Reply

• 

  MakingSkincare

  Member

  June 19, 2014 at 4:39 am

  The stability of an emulsion is controlled by:- 

  - interfacial surface forces, 

  - size of the disperse phase droplets, 

  - viscous properties of the continuous phase and 

  - density difference between the two phases.

  (Stokes law). 

  
  

  However some would argue that Stokes law doesn’t apply to any non Newtonian fluid like ketchup or lotion and that standard Navier-Stokes equations should be used instead (parameterized and coupled then constants can be backed out using numerical quadrature).  Interesting discussion on this here - https://www.facebook.com/groups/makingskincare/permalink/468977136561449/

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