Journal of Materials Science

, Volume 15, Issue 7, pp 1814–1822 | Cite as

The mechanical properties of epoxy resins

Part 1 Mechanisms of plastic deformation
  • Salim Yamini
  • Robert J. Young


The yield stress, σy, and Young's modulus, E, of a series of triethylenetetramine-cured epoxy resins have been measured as a function of resin composition and testing rate and temperature. It is found that for a given composition, both σy and E increase as the testing rate is increased and as the temperature is decreased. It is also found that under the same testing conditions, σy and E both decrease as the amount of curing agent in the resin is increased. The relationship between σy and E has been analysed using the theories of plastic deformation in glassy polymers of Argon and Bowden. Good agreement has been found with the Argon theory at low temperatures whereas the agreement with the Bowden theory is found to be good at all temperatures up to Tg. It appears therefore that the plastic deformation of epoxy resins which are thermosets is similar to that of glassy thermoplastics. The significance of the parameters derived from the two theories has been discussed in terms of the molecular structure of the resins.


Polymer Mechanical Property Argon Epoxy Plastic Deformation 
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  1. 1.
    O. Ishai, J. Appl. Polymer Sci. 11 (1967) 963.Google Scholar
  2. 2.
    P. B. Bowden and J. A. Jukes, J. Mater. Sci. 7 (1972) 52.Google Scholar
  3. 3.
    P. B. Bowden, “The Physics of Glassy Polymers”, edited by R. N. Howard (Applied Science Publishers, London, 1973) p. 279.Google Scholar
  4. 4.
    P. B. Bowden and S. Raha, Phil. Mag. 29 (1974) 149.Google Scholar
  5. 5.
    A. Thierry, R. J. Oxborough and P. B. Bowden, ibid 30 (1974) 527.Google Scholar
  6. 6.
    A. S. Argon, ibid 28 (1973) 839.Google Scholar
  7. 7.
    A. S. Argon and M. I. Bessonov, Polymer. Eng. Sci. 17 (1977) 174.Google Scholar
  8. 8.
    Idem, Phil. Mag. 35 (1977) 917.Google Scholar
  9. 9.
    H. Eyring, J. Chem. Phys. 4 (1936) 283.Google Scholar
  10. 10.
    R. W. K. Honeycombe, “The Plastic Deformation of Metals” (Edward Arnold, London, 1968).Google Scholar
  11. 11.
    S. Yamini and R. J. Young, Polymer 18 (1977) 1075.Google Scholar
  12. 12.
    R. A. Gledhill, A. J. Kinloch, S. Yamini and R. J. Young, Polymer 19 (1978) 574.Google Scholar
  13. 13.
    S. Yamini and R. J. Young, J. Mater. Sci. 14 (1979) 1609.Google Scholar
  14. 14.
    R. J. Young and P. W. R. Beaumont, Polymer 17 (1976) 717.Google Scholar
  15. 15.
    S. Yamini, Ph.D. Thesis, University of London (1979).Google Scholar
  16. 16.
    P. B. Bowden and S. Raha, Phil. Mag. 22 (1970) 463.Google Scholar
  17. 17.
    J. B. C. Wu and J. C. M. Li, J. Mater. Sci. 11 (1976) 434.Google Scholar
  18. 18.
    N. Brown, Mater. Sci. Eng. 8 (1971) 839.Google Scholar
  19. 19.
    R. Raghava, R. M. Caddell and G. S. Y. Yeh, J. Mater. Sci. 8 (1973) 225.Google Scholar
  20. 20.
    M. Kitagawa, J. Polymer Sci. Polymer Phys. Ed. 15 (1977) 1601.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1980

Authors and Affiliations

  • Salim Yamini
    • 1
  • Robert J. Young
    • 1
  1. 1.Department of MaterialsQueen Mary CollegeLondonUK

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