Tribology Letters

, Volume 29, Issue 1, pp 57–66 | Cite as

The Influence of Lubricating Agents on the Formation of a Film of a Styrene/Butadiene Latex

  • Kaj BackfolkEmail author
  • Jouko Peltonen
  • Nick Triantafillopoulos
  • Serge Lagerge
  • Jarl B. Rosenholm
Original Paper


The interactions between paper coating lubricants and a carboxylated styrene/butadiene latex emulsion and their effect on latex film morphology have been studied. Calcium stearate, non-ionic polyethylene emulsion and organic triglyceride lubricants showed different interaction characteristics with the latex emulsion according to viscosity, zeta potential and isothermal calorimetric measurements. Calcium stearate lowered the viscosity of the dilute latex emulsion at low concentration suggesting a strong interaction with the latex particles due to a change in the hydrodynamic dimensions of the latex particles. The exothermic enthalpy change supported the assumption of a dissociative interaction. In contrast, both non-ionic polyethylene and organic triglyceride emulsion showed less pronounced enthalpy changes, indicating lower affinity for the latex particles. The reduction in viscosity showed, however, that at low lubricant concentrations there is an interaction between the latex particles and particularly the organic triglyceride emulsion. This suggests a selective adsorption of stabilizing agents and species from the lubricant emulsion which alters the hydrodynamic radius of the latex particles. The effects of the colloidal interactions on the morphology of the latex films monitored by Atomic Force Microscopy (AFM) indicated that specific surface interaction occurring in aqueous media influenced the topography and the surface chemical heterogeneity of the latex films. Especially in the case of calcium stearate, it seems that the dissolved species arrange themselves around the latex particles inhibiting film formation. The organic triglyceride, on the other hand, showed a lower interaction potential in the aqueous phase and it had a different impact on the film formation.


Lubricant Latex Styrene/butadiene Surfactants Enthalpy Association Interaction AFM Film formation Calcium stearate Non-ionic polyethylene Organic triglyceride 



Mrs. Airi Saarinen is gratefully acknowledged for laboratory assistance and Dr. Anthony Bristow for linguistic revision of the manuscript. Dow Chemicals is acknowledged for supplying the styrene/butadiene latex.


  1. 1.
    Conley, R. F.: Practical Dispersion—A guide to Understanding and Formulating Slurries. Wiley-VCH (1996)Google Scholar
  2. 2.
    Kawashima, N., Meguro, K.: Lubricating action of organic pigment during the grinding of pigment slurries. Prog. Org. Coat. 4, 209 (1976)CrossRefGoogle Scholar
  3. 3.
    Krasniewski, J.M.: In: Kane R.J. (ed.) Paper Coating Additives. Tappi Press (1978)Google Scholar
  4. 4.
    Schneider, E.: Lubricants in coating compositions. Deut.: Papierwirtsch. 32(14), 30 (1970)Google Scholar
  5. 5.
    Renowden, D.: Wochenblatt fur Papierfabrikation. 21, 803 (1974)Google Scholar
  6. 6.
    Kelly, G.B., Buttrick, G.W.: Study of polyethylene glycols as lubricants for paper coatings. Tappi J. 10, 1900–1904 (1970)Google Scholar
  7. 7.
    Thompson, N.: Paper coating additives: fluorochemicals, insolubilisers and lubricants. In: Coated Paperboard Short Course. Tappi Press (1996)Google Scholar
  8. 8.
    Kesler, M.W., Ramp, J.W.: Paper coating additives: fluorochemicals, insolubilisers and lubricants. In: Coated Paperboard Short Course. Tappi Press (1994)Google Scholar
  9. 9.
    Otis, B.: Paper Age, no 5, 40 (1979)Google Scholar
  10. 10.
    Kokko, A., Triantafillopoulos, N., Grankvist, T.: Apparent slip of paper coatings and the influence of coating lubricants. Tappi Coating Symposium, Tappi Proceedings. San Diego, USA (2001)Google Scholar
  11. 11.
    Kronberg, B., Stenius, P.: The effect of surface polarity on the adsorption of non-ionic surfactants. I: thermodynamic considerations. J. Colloid Interface Sci. 102, 410 (1984)CrossRefGoogle Scholar
  12. 12.
    Grant, L., Ederth, T., Tiberg, F.: Influence of surface hydrophobicity on the layer properties of adsorbed nonionic surfactants. Langmuir 16, 2285–2291 (2000)CrossRefGoogle Scholar
  13. 13.
    Romero-Cano, M.S., Martín-Rodriguez, A., Chauveteau, G., de las Nieves, F.J.: Colloidal stabilization of polystyrene particles by adsorption of non-ionic surfactants I. Adsorption study. J. Colloid Inteface Sci. 198, 266–272 (1998)CrossRefGoogle Scholar
  14. 14.
    Steward, P.A., Hearn, J., Wilkinson, M.C.: An overview of polymer latex film formation and properties. Adv. Colloid Interface Sci. 86, 195–267 (2000)CrossRefGoogle Scholar
  15. 15.
    Chevalier, Y., Pichot, C., Graillat, C., Joanicot, M., Wong, K., Maquet, J., Lindner, P., Cabane, B.: Film formation with latex particles. Colloid Polym. Sci. 270, 806–821 (1992)CrossRefGoogle Scholar
  16. 16.
    Zosel, A., Ley, G.: Film formation from polymer lattices. Prog. Colloid Polym. Sci. 101, 86 (1996)CrossRefGoogle Scholar
  17. 17.
    Lam, S., Hellgren, A.C., Sjöberg, M., Holmberg, K., Schoonbrood, H.A.S., Unzué, M.J., Asua, J.M., Tauer, K., Sherrington, D.C., Montoya Goni, A.: Surfactants in heterophase polymerization: a study of film formation using atomic force microscopy. J. Appl. Polym. Sci. 66, 187–198 (1997)CrossRefGoogle Scholar
  18. 18.
    Hellgren, A.-C., Tie-Qiang, L.: Surfactant mobility during film formation and its influence on mechanical properties of dried films. Creative Adv. in Coat. Techn., Proceedings of the 4th Nürberg Congress (Paper 49) (1997)Google Scholar
  19. 19.
    Du Chesne, A., Gerharz, B., Lieser, G.: The segregation of surfactant upon film formation of latex dispersions: an investigation by energy filtering transmission electron microscopy. Polym Int 43, 187–196 (1997)CrossRefGoogle Scholar
  20. 20.
    Adamson, A.W., Gast, A.P.: Physical Chemistry of Surfaces, 6th edn. Wiley, New York (1997)Google Scholar
  21. 21.
    Garcia, R., Perez, R.: Dynamic atomic force microscopy methods. Surf. Sci. Rep. 47, 197–301 (2002)CrossRefGoogle Scholar
  22. 22.
    Feng, J., Odrobina, E., Winnik, M.: Effect of hard polymer filler particles on polymer diffusion in a low Tg latex film. Macromolecules. 31, 5290–5299 (1998)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Kaj Backfolk
    • 1
    Email author
  • Jouko Peltonen
    • 2
  • Nick Triantafillopoulos
    • 3
  • Serge Lagerge
    • 4
  • Jarl B. Rosenholm
    • 5
  1. 1.Research Centre ImatraStora Enso OyjImatraFinland
  2. 2.Laboratory of Paper Coating and ConvertingÅbo Akademi UniversityTurkuFinland
  3. 3.Omnova SolutionsHemel HempsteadUK
  4. 4.Lammi, C.N.R.S UMR 5072Université Montpellier IIMontpellier cedex 05France
  5. 5.Department of Physical ChemistryÅbo Akademi UniversityTurkuFinland

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