Skip to main content
SpringerLink
Log in

Micromechanical deformations in particulate filled thermoplastics: volume strain measurements

  • Papers
  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Volume strain measurements were carried out on PP composites containing different CaCO3 fillers. During deformation, a volume increase was detected which could be divided into two linear sections as a function of elongation. Comparison of data with existing theories has shown that in the first part, mostly elastic deformation takes place and the slope can be related to the Poisson's ratio of the composite. Scanning electron microscopy revealed that in the second stage, the dominating micromechanical deformation process is debonding. Void formation is initiated at a certain stress which approximately corresponds to the yield stress of the composites, but data in the literature and model calculations indicate that separation of the matrix/filler interface may start at lower stresses. Initiation stress depends on the particle size of the filler and on interfacial interactions. The rate of volume increase has non-linear dependence on the volume fraction of the filler. Volume strain measurements reflect micromechanical deformations well, but further study is needed to explain contradictions between experimental results and theoretical predictions.

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

Similar content being viewed by others

References

  1. C. B. Bucknall, “Toughened Plastics” (Applied Science, London, 1977).

    Book  Google Scholar 

  2. A. J. Kinloch and R. J. Young, “Fracture Behaviour of Polymers” (Elsevier, London, 1983).

    Google Scholar 

  3. P. H. T. Vollenberg, PhD Thesis, University of Eindhoven, 1987.

  4. B. Pukánszky and G. Vörös, Compos. Interfaces 1 (1993) 411.

    Google Scholar 

  5. H. Breuer, NATO ASI Ser. E 89 (1985) 375.

    CAS  Google Scholar 

  6. Idem. Ibid. 89 (1985) 383.

    CAS  Google Scholar 

  7. W. J. Coumans and D. Heikens, Polymer 21 (1980) 957.

    Article  CAS  Google Scholar 

  8. V. P. Chacko, R. J. Farris and F. E. Karasz, J. Appl. Polym. Sci. 28 (1983) 2701.

    Article  CAS  Google Scholar 

  9. E. A. A. Hartingsveldt, PhD Thesis, Technical University of Delft, 1987.

  10. B. Turcsányi, B. Pukánszky and F. Tüdós, J. Mater. Sci. Lett. 7 (1988) 160.

    Article  Google Scholar 

  11. B. Pukánszky, B. Turcsányi and F. Tüdós, in “Interfaces in Polymer, Ceramic and Metal Matrix Composites”, edited by H. Ishida (Elsevier, New York, 1988) p. 467.

    Google Scholar 

  12. B. Pukánszky, K. Belina, A. Rockenbauer and F. H. J. Maurer, Composites (in press).

  13. P. H. T. Vollenberg and D. Heikens, J. Mater. Sci. 25 (1990) 3089.

    Article  CAS  Google Scholar 

  14. N. J. Goodier, J. Appl. Mech. 55 (1933) 39.

    Google Scholar 

  15. R. J. Farris and R. Falabella, Sagamore Army Materials Research Conference Proceedings, Vol 32 (1987) 199.

    Google Scholar 

  16. S. D. Sjoerdsma, PhD Thesis, Eindhoven University of Technology, 1981.

  17. C. B. Bucknall, Adv. Polym. Sci. 27 (1987) 121.

    Article  Google Scholar 

  18. C. B. Bucknall, in “Polymer Blends”, edited by D. R. Paul and S. Newman Academic Press, New York, 1978 p. 91.

    Chapter  Google Scholar 

  19. R. J. Farris, Trans. Soc. Rheol. 12 (1968) 315.

    Article  CAS  Google Scholar 

  20. P. Vollenberg, D. Heikens and H. C. B. Ladan, Polym. Compos. 9 (1988) 382.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Central Research Institute for Chemistry, Hungarian Academy of Sciences, PO Box 17, H-1525, Budapest, Hungary

    B. Pukánszky

  2. DSM Research BV, PO Box 18, 6100, MD Geleen, The Netherlands

    M. Van Es & F. H. J. Maurer

  3. Institute for General Physics, Eötvös University Budapest, PO Box 323, H-1445, Budapest, Hungary

    G. Vörös

Authors
  1. B. Pukánszky
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. Van Es
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. F. H. J. Maurer
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. G. Vörös
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pukánszky, B., Van Es, M., Maurer, F.H.J. et al. Micromechanical deformations in particulate filled thermoplastics: volume strain measurements. JOURNAL OF MATERIALS SCIENCE 29, 2350–2358 (1994). https://doi.org/10.1007/BF00363426

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00363426

Keywords

Search

Navigation