Advertisement

Journal of Materials Science

, Volume 25, Issue 6, pp 2985–2989 | Cite as

Micromechanism of failure of thermoplastic rubber

  • Namita Roy Choudhury
  • Anil K. Bhowmick
Article

Abstract

The fracture surface morphology of various thermoplastic rubber and rubber vulcanizates based on natural rubber (NR), ethylene propylene diene rubber (EPDM), nitrile rubber (NBR), polyethylene (PE) and polypropylene (PP), namely NR-PE, NR-PP, EPDM-PE, EPDM-PP and NBR-PP, has been studied over a range of blend ratios, levels of interaction, rates, temperatures and modes of testing. The fracture surface changes with changes in blend ratio. Incorporation of a third component like EPDM or chlorinated polyethylene (CPE) to a certain percentage does not change the fracture morphology. Sulphur curing in the NR-PE blend generates a ductile matrix like rubber whereas large fissures are observed for peroxide-cured systems. Modification of both rubber and plastic also changes the surface morphology. The samples tested at various temperatures, rates and modes show similar features on the fracture surface.

Keywords

Rubber Fracture Surface Nitrile Surface Morphology Diene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. K. Bhowmick,Kautschuk Gummi Kunststoffe 37 (1984) 191.Google Scholar
  2. 2.
    A. Saha Deuri andA. K. Bhowmick,J. Mater. Sci. 22 (1987) 4299.Google Scholar
  3. 3.
    A. Y. Coran, in “Handbook of Elastomers — New Development and Technology”, edited by A. K. Bhowmick and H. L. Stephens (Dekker, New York, 1988) p. 249.Google Scholar
  4. 4.
    D. J. Elliott andA. J. Tinker, in Proceedings, “Thermoplastic Natural Rubber Blends,” International Rubber Conference, Kuala Lumpur, 1985.Google Scholar
  5. 5.
    N. Roy Choudhury andA. K. Bhowmick,J. Mater. Sci. 23 (1988) 2187.Google Scholar
  6. 6.
    Idem, J. Appl. Polym. Sci. 38 (1989) 1091.Google Scholar
  7. 7.
    Idem, J. Adhesion Sci. Technol. 2 (1988) 167.Google Scholar
  8. 8.
    Idem, J. Mater. Sci. 25 (1990) 161.Google Scholar
  9. 9.
    P. I. Vincent, in “Encyclopedia of Polymer Science and Technology”, Vol. 7, edited by N. M. Bikales (Interscience, New York, 1967) p. 292.Google Scholar
  10. 10.
    A. K. Bhowmick et al., Rubb. Chem. Technol. 53 (1980) 327.Google Scholar
  11. 11.
    A. K. Bhowmick, S. Basu andS. K. De,ibid. 53 (1980) 321.Google Scholar
  12. 12.
    A. Saha Deuri andA. K. Bhowmick,J. Appl. Polym. Sci. 35 (1988) 327.Google Scholar
  13. 13.
    A. K. Bhowmick,J. Mater. Sci. Lett. 5 (1986) 1042.Google Scholar

Copyright information

© Chapman and Hall Ltd 1990

Authors and Affiliations

  • Namita Roy Choudhury
    • 1
  • Anil K. Bhowmick
    • 1
  1. 1.Rubber Technology CentreIndian Institute of TechnologyKharagpurIndia

Personalised recommendations