Skip to main content
SpringerLink
Log in

Rheometric properties of micron-sized CaCO3 suspensions stabilised by a physical polyol/silica gel for polyurethane foams

  • Original Contribution
  • Published:
Rheologica Acta Aims and scope Submit manuscript

Abstract

This article considers the rheometric properties of mixtures containing a micron-sized mineral filler of calcium carbonate (CaCO3) in a polymer matrix gelled by adding colloidal silica (CS). These mixtures, consisting of a polymer matrix (polyols, catalysts, surfactant) are used to produce polyurethane foams. The suspending phase (polymer matrix/CS) has a yield stress that has been linked to fractal aggregation of the colloidal filler. Suspensions without any colloidal silica (polymer matrix/CaCO3), show aggregation of CaCO3 which is most probably due to the adsorption of catalysts present in the polymer matrix. Beyond a critical CaCO3 volume fraction, a yield stress is detected indicating a 3D connected structure. In the case of suspensions containing colloidal silica (polymer matrix/CaCO3/SC), the yield stress is due to a combination of the fractal network formed by the colloidal silica and aggregation of the micron-sized particles of CaCO3.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12

Similar content being viewed by others

References

  • Allendale, NJ (1989)Technical Bulletin Pigments No 23, Degussa Corporation

  • Charney C (1999) Formulation de suspensions concentrées de talc: physico-chimie des interfaces et analyses rhéologiques, Thesis, Montpellier University II, France

  • Chhabra RP (1993) Bubbles, drops, and particles in non-Newtonian fluids. CRC Press, Boca Rota

  • Coussot P, Piau JM (1993) Les cahiers de Rhéologie 12:1

    Google Scholar 

  • Gregory J (1969) Adv Colloid Interface Sci 396–417

  • Jossic L, Magnin A (2001) AIChE 47:2666

    Article  Google Scholar 

  • Lide DR (1993) A ready reference book of chemical and physical data. CRC Handbook of Chemistry and Physics. CRC Press

  • Macosko CW (1994) Rheology: principles, measurements, and applications. Wiley, New York

  • Magnin A, Piau JM (1990) J Non-Newtonian Fluid Mech 36: 85

    Article  Google Scholar 

  • Malkin AY (1990) Adv Polym Sci 69–96

  • Mayadunne A, Bhattacharya SN, Kosior (1996) Plastics, rubber Composites Process Appli 25:126

    Google Scholar 

  • Mengual 0, Meunier G, Cayré I (1999) Talanta 50:445

    Article  Google Scholar 

  • Metzner AB (1985) J Rheol 29(6):739

    Article  Google Scholar 

  • Piau JM, Dorget M, Palierne JF, Pouchelon A (1999) J Rheol 43:305

    Article  Google Scholar 

  • Pignon F, Magnin A, Piau JM, Cabane B, Lindner P, Diat O (1997) Phys Revi E 56(3):3281

    Article  Google Scholar 

  • Saint-Michel F, Pignon F, Magnin A (2003) J Colloid Interface Sci 267(2):314

    Article  Google Scholar 

  • Snow SA, Stevens RE (1999) Surfactant Sci Ser 86:137

    Google Scholar 

  • Suetsugu Y, White JL (1983) J Appl Polym Sci 28:1481

    Article  Google Scholar 

  • Wang Y, Wang JJ (1999) Polym Eng Sci 39:190

    Article  Google Scholar 

Download references

Acknowledgements

The authors wish to thank the Région Rhône Alpes for supporting this research in the context of the 2000/2003 “Priority Themes” research programme “Engineering and Materials”.

Author information

Authors and Affiliations

  1. Laboratoire de Rhéologie, Institut National Polytechnique de Grenoble, CNRS UMR 5520, Université Joseph Fourier - Grenoble I, BP 53, 38041, Grenoble Cedex 9, France

    Fabrice Saint-Michel, Frédéric Pignon & Albert Magnin

Authors
  1. Fabrice Saint-Michel
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Frédéric Pignon
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Albert Magnin
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Albert Magnin.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Saint-Michel, F., Pignon, F. & Magnin, A. Rheometric properties of micron-sized CaCO3 suspensions stabilised by a physical polyol/silica gel for polyurethane foams. Rheol Acta 44, 644–653 (2005). https://doi.org/10.1007/s00397-005-0446-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00397-005-0446-3

Keywords

Search

Navigation