Dynamic Mechanical Properties of Pressure-Sensitive Adhesives

  • Sung Gun Chu

Abstract

The performance of pressure-sensitive adhesives (PSA) is related to the viscoelastic response of the bulk adhesives as well as to the surface energies of the adhesives and adherend. Testing the performance of a pressure-sensitive adhesive involves both the formation and destruction of a bond. For the typical tack, peel strength, and shear strength tests, the bonding conditions, such as the applied stress and dwell time, are specified, as are the debonding conditions of strain rate for tack and peel, and stress for time to failure in the shear test. To perform satisfactorily as a pressure-sensitive adhesive, the material must respond to a deforming force in a prescribed manner during both bonding and debonding. It must adhere to the substrate during bonding and exhibit a measurable resistance to separation at debonding conditions. In each of these steps, both the rate and extent of deformation are important. Bonding is a low rate process at low deformation, when the adhesive is brought into contact with a surface, while debonding in the tack or peel tests is a high rate process at high deformation relative to the thickness of the adhesive. The shear strength test is essentially a creep test carried to high deformation. Thus, the viscoelastic behavior of the adhesive controls its response in adhesive testing and is a major factor in its performance.

Keywords

Glass Transition Temperature Viscoelastic Property Natural Rubber Dynamic Mechanical Property Natural Rubber Latex 
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.

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References

  1. 1.
    M. Sherriff, R. W. Knibbs, and P. G. Langley, J. Appl. Polym. Sci. 17, 3423 (1973).CrossRefGoogle Scholar
  2. 2.
    D. W. Aubrey and M. Sherriff, J. Polym. Sci., Polym. Chem. Ed. 16, 2631 (1978).CrossRefGoogle Scholar
  3. 3.
    D. W. Aubrey and M. Sherriff, J. Polym. Sci., Polym. Chem. Ed. 18, 2597 (1980).CrossRefGoogle Scholar
  4. 4.
    G. Kraus, F. B. Jones, O. L. Marrs, and K. W. Rollmann, J. Adhes. 8, 235 (1977).CrossRefGoogle Scholar
  5. 5.
    G. Kraus and K. W. Rollmann, J. AppL Polym. Sci. 21, 3311 (1977).CrossRefGoogle Scholar
  6. 6.
    G. Kraus, K. W. Rollmann, and R. A. Gray, J. Adhes. 10, 221 (1979).CrossRefGoogle Scholar
  7. 7.
    G. Kraus and T. Hashimoto, J. AppL Polym. Sci. 27, 1745 (1982).CrossRefGoogle Scholar
  8. 8.
    R. Bates, J. AppL Polym. Sci. 16, 2631 (1978).Google Scholar
  9. 9.
    B. C. Coply, Rubber Chem. Technol. 55, 416 (1982).CrossRefGoogle Scholar
  10. 10.
    J. B. Class and S. G. Chu, J. AppL Polym. Sci. 30, 805 (1985).CrossRefGoogle Scholar
  11. 11.
    J. B. Class and S. G. Chu, J. AppL Polym. Sci. 30, 815 (1985).CrossRefGoogle Scholar
  12. 12.
    J. B. Class and S. G. Chu, J. AppL Polym. Sci. 30, 825 (1985).CrossRefGoogle Scholar
  13. 13.
    J. B. Class and S. G. Chu, Presentation at the Adhesion Society Meeting (February 1984).Google Scholar
  14. 14.
    S. G. Chu, Viscoelastic properties of pressure sensitive adhesives, in: Handbook of Pressure Sensitive Adhesive Technology, Van Nostrand Reinhold Co., Amsterdam (1989).Google Scholar
  15. 15.
    W. P. Cox and E. H. Merz, J. Appl. Polym Sci. 28, 619 (1958).CrossRefGoogle Scholar
  16. 16.
    J. D. Ferry, Viscoelastic Properties of Polymers, 3rd ed., Wiley, New York (1980).Google Scholar
  17. 17.
    C. A. Dahlquist, Proc. Nottingham Conf. on Adhesion, in: Adhesion: Fundamentals and Practice, Mac-Laren & Sons Ltd. London (1966).Google Scholar
  18. 18.
    E. R. Riande and H. Markovitz, J. Polym. Sci., Polym. Phys. Ed. 13, 947 (1975).CrossRefGoogle Scholar
  19. 19.
    T. K. M. Wong, Ph.D. Thesis, Council for National Academic Awards, London (1986).Google Scholar
  20. 20.
    S. G. Chu, Proceedings of Adhesives and Sealant Council Meeting (1984).Google Scholar
  21. 21.
    J. Kim, C. D. Han, and S. G. Chu, J. Polym. Sci., Polym. Phys. Ed. 26, 677 (1988).CrossRefGoogle Scholar
  22. 22.
    D. Carper, Adhes. Age. 32(9), 35 (1989).Google Scholar

Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Sung Gun Chu
    • 1
  1. 1.Hercules IncorporatedResearch CenterWilmingtonUSA

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