Hostname: page-component-7bb8b95d7b-lvwk9 Total loading time: 0 Render date: 2024-09-12T13:12:34.878Z Has data issue: false hasContentIssue false

A Calorimetric Evaluation of Peel Adhesion

Published online by Cambridge University Press:  21 February 2011

Richard. J. Farris*
Affiliation:
Polymer Science & Engineering Department, University of Massachusetts, Amherst, MA 01003
Jay. L. Goldfarb
Affiliation:
Raychem Corporation, 300 Constitution Drive, Menlo Park, CA 94025-1164
*
*To whom correspondence should be sent
Get access

Abstract

Peeling of flexible poly(ethylene terephthalate), PET, and elastic steel films, adhesively bonded with a pressure sensitive adhesive layer, was analyzed from a thermodynamic perspective with the intent of determining how the energy expended in separating the bonded materials is consumed. The mechanical work expended and the heat dissipated during peeling were simultaneously measured using deformation calorimetry. For the PET backing material, which has a demonstrated capacity to store deformation energy as latent internal energy, most, but not all, of the peel energy was dissipated as heat. When perfectly elastic steel films were peeled, all of the peel energy was dissipated as heat, proving that no latent internal energy is stored in the adhesive layer during peeling and suggesting that the internal energy change of peeling adhesive backed with PET film was stored as latent internal energy in the PET backing. The stored latent internal energy in the peeled PET was measured using solution calorimetry. The thermodynamics of tensile drawing for PET was studied using deformation calorimetry, solution calorimetry, differential scanning calorimetry and thermomechanical analysis.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Kaelble, D.H., Trans. Soc. Rheol. 9, 135163 (1965).Google Scholar
2. Crocombe, A.D. and Adams, R.D., J. Adhesion 12, 127138 (1981).CrossRefGoogle Scholar
3. Crocombe, A.D. and Adams, R.D., J. Adhesion 13, 241248 (1982).Google Scholar
4. Gent, A.N. and Hamed, G.R., J. Appl. Polym. Sci. 21, 28172831 (1977).Google Scholar
5. Gent, A.N. and Hamed, G.R., Polym. Eng. Sci. 17, 462466 (1977).Google Scholar
6. Kim, J., Kim, K.S. and Kim, Y.H., J. Adhesion Sci. Technol. 3, 175187 (1989).CrossRefGoogle Scholar
7. Kim, K.S., J. Eng. Mater. Technol. 110, 266273 (1988).Google Scholar
8. Aravas, N., Kim, K.S. and Loukis, M.J., Mater. Sci. Eng. A107, 159168 (1989).Google Scholar
9. Kim, K.S., Mater. Res. Soc. Symp. Proc. 119, 3141 (1988).Google Scholar
10. Scotch-Grip is a trademark of the 3M corporation, Industrial Specialties Division, St. Paul MN.Google Scholar
11. Mylar is a trademark of the Dupont corporation, Electronics Division, Wilmington, DE.Google Scholar
12. Lyon, R.E. and Farris, R.J., Rev. Sci. Instrum. 57, 16401646 (1986).Google Scholar
13. Goldfarb, J.L., Ph.D. Thesis, A Calorimetric Evaluation of the Peel Adhesion Test, University of Massachusetts, Amherst, MA (1992).CrossRefGoogle Scholar
14. Goldfarb, J.L. and Farris, R.J., J.Adhesion 35, 233244 (1991).Google Scholar
15. Adams, G.W., Ph.D. Thesis, The Thermodynamics of Deformation of Thermoplastic Polymers, University of Massachusetts (1987).Google Scholar
16. Wyzgoski, M.G., J. Appl. Polym. Sci. 25, 14551467 (1980).CrossRefGoogle Scholar
17. Petrie, S.E.B., J. Polym. Sci. A: 10, 12551272 (1972).CrossRefGoogle Scholar
18. Berens, A.R. and Hodge, I.M., Macromol. 15, 756761 (1982).Google Scholar
19. Kung, T. and Li, J.C., J. Mat. Sci. 22, 36203630 (1987).Google Scholar
20. Chang, S., Chem. Thermodynamics 9, 189197 (1977).Google Scholar