Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
권호 표지

Disjoining Process Isotherms for oil-water-oil Emulsion Films

오일-물-오일 에멜젼막의 Disjoining Pressure에 관한 연구

  • 조완구 (엘지 생활건강 화장품연구소)
  • Published : 1997.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

We have used a novel liquid surface forces apparatus to determine the variation of disjoining pressure with film thickness for dodecane-water-dodecane emulsion films. The LSFA allows measurement of film thicknesses in the range 5-100 nm and disjoining pressure from 0-1500 Pa. Disjoining pressure isotherms are given for films stabilised by the nonionic surfactnat n-dodecyl pentaoxyethylene glycol ether$(C_{12}E_5)$ and n-decyl-$\beta$-D-glucopyranoside($C_{10}- $\beta$-Glu)$ and the anionic surfactant sodium bis(2-ethylhexyl) sulphosuccinate(AOT) in the presense of added electrolyte. For $C_{12}E_5$ and AOT, the emulsion films are indefinitely stable even for the highest concentration of NaCl tested (136.7 Nm) whereas the $C_{10}-{eta}-Glu$ film shows coalescence at this salt concentration. For film thicknesses greater than approximately 20 nm with all three surfactants, the disjoining pressure isotherms are reasonably well described in terms of electrostatic and van der Waals, forces. For the nonionic surfactant emulsion films, the charge properties of the monolayers are qualitatively similar to those seen for foam films. For AOT emulsion films, the monolayer surface potentials estimated by fitting the isotherms are similar to the values of the zeta potential measured for AOT stabilised emulsion droplets. For thin emulsion films certain systems showed isotherms which suggested the presence of an additional repulsive force with a range of approximately 20 nm.

Keywords

References

  1. Adv. Colloid Interface Sci. v.1 Scheludko, A.
  2. Surface & Colloid Science v.3 Clunie. J.S.;Goodman, J.F.;Ingham B.T.;Matijevic, E.(ed.)
  3. Coagulation and Stability of Disperse Systems Sonntag, H.;Strenge, K.;R. Kondor(tr.)
  4. Prog. in Surface Sci. v.8 Aveyard, R.;Vincent, B.
  5. Surfactant Science Series v.29 Thin Liquid Films. Fundamentals and Applications Ivanov, I.B.(ed.)
  6. Adv. Colloid Interface Sci. v.40 Exerowa, D.;Kashchiev, D.;Platikanov, D.
  7. Disc. of the Faraday Soc. no.42 Mysels, K.J.;Jones, M.N.
  8. J. Colloid Sci. v.13 Van den Tempel, M.
  9. Kolloid Zeit. and Zeit Polymere v.211 Sonntag, H.;Netzel, J.;Klare, H.
  10. Abh. Dtsch. Akad Wiss. Ki. Chem., Geol. Biol. v.6A Netzel, J.;Sonntag, H.
  11. Proceedings of the IVth International congress on Surface Active Substances, Volume II. Physics and Physical Chemistry of Surcace Active Substances v.2 Platikanov, D.;Manev, E.;Overbeek, J.(ed.);Th.G.(ed.)
  12. Spec. Discuss. Faraday Soc. v.1 Sonntag, H.;Netzel, J.;Unterberger, B.
  13. J. Chem. Soc. Faraday Trans. 1 v.78 Herringion, T.M.;Midmore, B.R.;Sahi S.S.
  14. J. Dispersion Sci. Technol. v.5 Manev, E.D.;Sazdanova, S.V.;Wasan, D.T.
  15. Faraday Discuss. Chem. Soc. v.81 Fisher, L.R.;Parker, N.S.
  16. Colloids and Surfaces v.22 Ivanov, I.B.;Chakarova, SV.K.;Dimitrova B.I.
  17. Colloid Polym. Sci. v.266 Muller, H.J.;Balinov, B.B.;Exerowa, D.R.
  18. J. Colloid Interface Sci. v.128 Fisher, L.R.;Mitchell, E.E.;Parker, N.S.
  19. J. Colloid Interface Sci. v.159 Velev, O.D.;Gurkov, T.D.;Borwankar
  20. Food Hydrocolloids v.7 Velev, O.D.;Nikolov, A.D.;Denkov, N.D.;Doxastakis, G.;Kiosseoglu, V.;Stalidis, G.
  21. Colloids and Surfaces A:Physicochemical and Engin. Aspects v.83 Velev, O.D.;Gurkov, T.D.;Chakarova, Sv.K.;Dimitrova, B.I.;Ivanov, I.B.;Borwankar, R.P.
  22. Phys. Rev. Letts. v.75 Velev, O.D.;Gurkov, T.D.;Ivanov, I.B.;Borwankar, R.P.
  23. J. Colliod Interface Sci. v.175 Velev, O.D.;Constantinides, G.N.;Avraam D.G.;Payatakes, A.C.;Borwankar, R.P.
  24. J. Colloid Interface Sci. v.178 Koczo, K.;Nikolov, A.D.;Wasan, D.T.;Borwankar, R.P.;Gonsalves, A.
  25. Langmuir v.12 Aveyard, R.;Binks, B.P.;Cho, W-G.;Fisher, L.R.;Fletcher, P.D.I.;Klinkhammer, F.
  26. J. Chem. Soc. Faraday Trans. Cho, W.-G.;Fletcher, P.D.I.
  27. J. Chem. Soc. Faraday Trans. 1 v.82 Aveyard, R.;Binks, B.P.;Clark, S.;Mead, J.
  28. Chem. Soc. Faraday Trans. v.86 Aveyard, R.;Binks, B.P.;Clark, S.;Fletcher, P.D.I.
  29. J. Chem. Tech. Biotechnol. v.54 Aveyard, R.;Binks, B.P.;Fletcher, P.D.I.;Ye, X.
  30. Intermolecular and Surface Forces(2nd Ed.) Israelachvili, J.N.
  31. J. Colloid Interface Sci. v.77 Chan, D.Y.C.;Pashley, R.M.;White, L.R.
  32. Langmuir v.7 Manev, E.D.;Pugh, R.J.
  33. Langmuir v.12 Marinova, K.G.;Alargova, R.G.;Denkov, N.D.;Velev, O.D.;Petsev, D.N.;Ivanov, I.B.;Borwanker, R.P.
  34. Colloid Polymer Sci. v.261 McShea, J.A.;Callaghan, I.C.
  35. Alkyl Polyglycosides Hill, K.(ed.);von Rybinski, W.(ed.);Stoll, G.(ed.)
  36. University of Hull unpublished results Aveyard;R. Binks, B.P.;Chen, J.;Fletcher, P.D.I.
  37. J. Colloid Interface Sci. v.182 Paunov, V.N.;Dimova, R.I.;Kialchevsky, P.A.;Broze, G.;Mehreteab, A.
  38. J. Dispersion Sci, Technol. v.15 Waltermo, A.;Manev, E.;Pugh, R.;Claesson P.
  39. Langmuir v.12 Begeron, V.;Waltermo, A.;Claesson, P.M.
  40. Langmuir v.12 Waltermo, A.;Claesson, P.M.;Simonsson, S.;Manev, E.;Johansson, I.;Bergeron, V.
  41. University of Hull unpublished results Aveyard, R.;Binks, B.P.;Cho, W-G.;Fletcher, P.D.I.;Petsev, D.N.