Rheologica Acta

, Volume 48, Issue 6, pp 699–708 | Cite as

Shear-thickening behavior of Aerosil® R816 nanoparticles suspensions in polar organic liquids

  • Francisco J. Galindo-Rosales
  • Francisco J. Rubio-Hernández
  • José F. Velázquez-Navarro
Original Contribution

Abstract

We have found in this study, by means of steady and dynamic rheometry, that Aerosil® R816 particles, in which hydroxyl groups have been mostly substituted by alkyls groups, form nonflocculated suspensions in polypropylene glycol, in comparison to what was expected from previous studies. Steady flow curve shows shear-thickening behavior between two shear-thinning regions. The transient rheological response has been analyzed using a protocol proposed a long time ago by Cheng (Rheol Acta 25:542–554, 1986). It has been found that, within the reversible shear-thickening region, all the constant structure curves overlap, which suggests that the response at a certain shear rate does not depend significantly on the previous state. As a consequence, this protocol is proposed as an alternative technique for distinction between flocculated and nonflocculated suspensions.

Keywords

Filled polymer Flow curve Oscillating flow Viscoelasticity Strain thickening Shear thickening 

References

  1. Barnes HA (1989) Shear thickening (“dilatancy”) in suspensions of nonaggregating solid particles dispersed in Newtonian liquids. J Rheol 33(2):329–366CrossRefADSGoogle Scholar
  2. Bender J, Wagner NJ (1995) Optical measurement of the contributions of colloidal forces to the rheology of concentrated suspensions. J Colloid Interface Sci 172:171–184CrossRefGoogle Scholar
  3. Bender J, Wagner NJ (1996) Reversible shear thickening in monodisperse and bidisperse colloidal suspensions. J Rheol 40(5):899–916CrossRefADSGoogle Scholar
  4. Boersma WH, Laven J, Stein HN (1992) Viscoelastic properties of concentrated shear-thickening dispersions. J Colloid Interface Sci 149:10–22CrossRefGoogle Scholar
  5. Bossis G, Brady JF (1989) The rheology of Brownian suspensions. J Chem Phys 91(3):1866–1874CrossRefADSGoogle Scholar
  6. Cheng CDH (1986) Yield stress: a time dependent property and how to measure it. Rheol Acta 25:542–554CrossRefGoogle Scholar
  7. Decker MJ, Halbach CJ, Nam CH, Wagner NJ, Wetzel E (2007) Comp Sci Technol 67:565–578CrossRefGoogle Scholar
  8. Degussa AG (1989) Fine particles. Technical Bulletin no. 18Google Scholar
  9. Degussa AG (2005) Product informationGoogle Scholar
  10. Degussa AG (2006) Fine particles. Technical Bulletin no. 11Google Scholar
  11. D’Haene P, Mewis J, Fuller GG (1993) Scattering dichroism measurements of flow-induced structure of a shear thickening suspension. J Colloid Interface Sci 156:350–358CrossRefGoogle Scholar
  12. Dullaert K (2005) Constitutive equations for thixotropic dispersions. PhD thesis, Katholieke Universiteit LeuvenGoogle Scholar
  13. Eisenlauer J, Killmann E (1980) Stability of colloidal silica (aerosil) hydrosols. I. Preparation and characterization of silica (aerosil) hydrosol. J Colloid Interface Sci 74(1):108–119CrossRefGoogle Scholar
  14. Fischer C, Braun SA, Bourban SE, Michaud V, Plummer CJG, Manson JAE (2006) Dynamic properties of sandwich structures with integrated shear-thickenig fluids. Smart Mater Struct 15:1467–1475CrossRefADSGoogle Scholar
  15. Fischer C, Plummer CJG, Michaud V, Bourban PE, Manson JAE (2007) Pre- and post-transition behavior of shear-thickening fluids in oscillating shear. Rheol Acta 46:1099–1108CrossRefGoogle Scholar
  16. Galindo-Rosales FJ, Rubio-Hernández FJ, Velázquez-Navarro JF, Gómez-Merino AI (2007) Structural level of silica-fumed aqueous suspensions. J Am Ceram Soc 90(5):1641–1643CrossRefGoogle Scholar
  17. Hoffman RL (1974) Discontinuous and dilatant viscosity behavior in concentrated suspensions. II. Theory and experimental tests. J Colloid Interface Sci 46(3):491–506CrossRefGoogle Scholar
  18. Hoffman RL (1998) Explanations for the cause of shear thickening in concentrated colloidal suspensions. J Rheol 42(1):111–123CrossRefADSGoogle Scholar
  19. Jaúregi-Beloqui B, Fernández-García JC, Orgilés-Barceló AC, Mahiques-Bujanda MM, Martín-Martínez JM (1999) Rheological properties of thermoplastic polyurethane adhesive solutions containing fumed silicas of different surface areas. Int J Adhes Adhes 19:321–328CrossRefGoogle Scholar
  20. Khan SA, Baker GL, Colson S (1994) Composite polymer electrolytes using fumed silica fillers: rheology and ionic conductivity. Chem Mater 6(12):2359–2363CrossRefGoogle Scholar
  21. Kirkwood K, Kirkwood J, Wetzel ED, Lee YS, Wagner NJ (2004) Yarn pull-out as a mechanism for dissipating ballistic impact energy in Kevlar KM-2 fabric. Part I: quasi-static characterization of yarn pull-out. Tex Res J 74(10):920–928CrossRefGoogle Scholar
  22. Larson RG (1999) The structure and rheology of complex fluids. Oxford University Press, New YorkGoogle Scholar
  23. Lee YS, Wagner NJ (2003) Dynamic properties of shear thickening colloidal suspensions. Rheol Acta 42:199–208Google Scholar
  24. Lee YS, Wagner NJ (2006) Rheological properties and small-angle neutron scattering of a shear thickening nanoparticle dispersion at high shear rates. Ind Eng Chem Res 45:7015–7024CrossRefGoogle Scholar
  25. Lee YS, Wetzel E, Wagner N (2003) J Mater Sci 38:2825–2833CrossRefGoogle Scholar
  26. Maranzano BJ, Wagner NJ (2001) The effect of interparticle interactions and particle size on reversible shear thickening: hard spheres colloidal dispersions. J Rheol 45(5):1205–1222CrossRefADSGoogle Scholar
  27. Maranzano BJ, Wagner NJ (2002) Flow-small angle neutron scattering measurements of colloidal dispersion microstructure evolution through the shear thickening transition. J Chem Phys 117(22):10291–10302CrossRefADSGoogle Scholar
  28. Nguyen QD, Jensen CTB, Kristensen PG (1998) Experimental and modelling studies of the properties of maize and waxy maize starch pastes. Chem Eng J 70:165–171CrossRefGoogle Scholar
  29. Osuji CO, Kim C, Weitz A (2008) Shear thickening and scaling of the elastic modulus in a fractal colloidal system with attractive interactions. Phys Rev E 77:060402 (R)CrossRefADSGoogle Scholar
  30. Raghavan SR, Khan SA (1995) Shear-induced microstructural changes in flocculated suspensions of fumed silica. J Rheol 39(6):1311–1325CrossRefADSGoogle Scholar
  31. Raghavan SR, Khan SA (1997) Shear-thickening response of fumed silica suspensions under steady and oscillatory shear. J Colloid Interface Sci 185:57–67PubMedCrossRefGoogle Scholar
  32. Raghavan SR, Riley M, Fedwik PS, Khan SA (1998) Composite polymer electrolytes based on poly(ethylene glycol) and hydrophobic fumed silica: dynamic rheology and microstructure. Chem Mater 10(1):244–251CrossRefGoogle Scholar
  33. Raghavan SR, Hou J, Khan SA (2000a) Colloidal interactions between particles with tethered nonpolar chains dispersed in polar media: direct correlation between dynamic rheology and interaction parameters. Langmuir 16:1066–1077CrossRefGoogle Scholar
  34. Raghavan SR, Walls HJ, Khan SA (2000b) Rheology of silica dispersions in organic liquids: new evidence for solvation forces dictated by hydrogen bonding. Langmuir 16(21):7920–7930CrossRefGoogle Scholar
  35. Sánchez A (2006) Colloidal gels of fumed silica: microstructure, surface interactions and temperature effects. PhD thesis, North Carolina State UniversityGoogle Scholar
  36. Sims ND, Stanway R, Johnson AR (1999) Vibration contributing smart fluids: a state-of-the-art review. Shock Vibr Dig 31(3):194–203Google Scholar
  37. Torró-Palau AM, Fernández-García AC, Orgilés-Barceló MM, Martín-Martínez JM (2001) Characterization of polyurethanes containing different silicas. Int J Adhes Adhes 21:1–9CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Francisco J. Galindo-Rosales
    • 1
  • Francisco J. Rubio-Hernández
    • 2
  • José F. Velázquez-Navarro
    • 2
  1. 1.Department of Mechanical Engineering and MiningUniversity of JaénJaénSpain
  2. 2.Department of Applied Physics IIUniversity of MálagaMálagaSpain

Personalised recommendations