Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-25T17:59:54.307Z Has data issue: false hasContentIssue false
  • English
  • Français

Acid-Base and Electrostatic Contributions to the Adhesion of Polymers to Metal and Ceramic Substrates

Published online by Cambridge University Press:  22 February 2011

Frederick M. Fowkes
Frederick M. Fowkes*
Affiliation:
Department of Chemistry, Lehigh University, Bethlehem, PA 18015
Get access

Extract

The strength of interfacial bonding between polymers and inorganic substrates is very appreciably enhanced when polymers are acidic and substrates are basic, or vice versa. The interaction is of two kinds, an increased thermodynamic work of adhesion resulting from large exothermic interactions at the interface, and an increased tensile strength resulting from electrical charge injection into the polymer from the substrate.

The exothermic interfacial interactions between acidic and basic sites are easily measured by calorimetry or by infrared spectral shifts. The enthalpies of adsorption can be correlated and predicted by the Drago equation, −Δ H = CACB+ EAEB, where the CA and EA for the acidic member can be measured by enthalpies determined with basic molecular probes of known CB and EB. Heats of adsorption of polymers onto inorganic substrates are precisely predictable with the above equation once E and C values are known for the polymer and substrate.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 40: Symposium J – Electronic Packaging Materials Science I , 1984 , 239
Copyright
Copyright © Materials Research Society 1985

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. Drago, R. S., Vogel, G. C., and Needham, T. E., J. Am. Chem.,Soc 93, 6014 (1971).CrossRefGoogle Scholar
2. Drago, R. S., Parr, L. B., and Chamberlain, C. S., J. Am. Chem. Soc., 99, 3203 (1977).CrossRefGoogle Scholar
3. Pearson, R. G., Hard and Soft Acids and Bases, Dowden, Hutchinson and Ross, Stroudsburg, PA, 1973.Google Scholar
4. Fowkes, F. M., Acid-Base Contributions to Polymer-Filler Interactions, Rubber Chemistry and Technology, Vol.57, No.2, May-June 1984.Google Scholar
5. Fowkes, F. M., and Mostafa, M. A., Ind. Eng. Chem., Prod. Res. Dev. 17, 3 (1978).CrossRefGoogle Scholar
6. Manson, J. A. and Straume, M., private communciation.Google Scholar
7. Marmo, M. J., Mostafa, M. A., Jinnai, H., Fowkes, F. M., and Manson, J. A., Ind. Eng. Chem., Prod. Res. Dev. 15, 206 (1976).Google Scholar
8. Manson, J. A., and Williams, J. T., Org. Coat. Plast. Chem. 42, 175 (1980).Google Scholar
9. Schreiber, H. P., Richard, C., and Wertheirmer, M. R., in “Physicohemical Aspects of Polymer Surfaces, Plenum Press, 1983, 2, 739.Google Scholar
10. Johnson, O., J. Phys. Chem. 59, 827, (1955).CrossRefGoogle Scholar
11. Benesi, H. A., J. Phys. Chem. 61, 970, (1957).CrossRefGoogle Scholar
12. Joslin, S. T. and Fowkes, F. M., Surface Acidity of Ferric Oxides Studied by Flow Microcalorimetry, submitted to IEC Prod R & D.Google Scholar
13. Fowkes, F. M., McCarthy, D. C., and Tischler, D. O., J. Poly, Sci., Polym. Chem. Ed. in press (1985).Google Scholar
14. Fowkes, Frederick M., Interface Acid-Base/Charge Transfer Properties, Surface and Interfacial Aspects of Biomedical Polymers, in press (Plenum Press, 1984), ed Andrade, J..Google Scholar
15. Fowkes, F. M., Jinnai, H., Mostafa, M. A., Anderson, F. W. and Moore, R. J., Colloids and Surfaces in Reprographic Technology, ACS Symp. Series 200, 307 (1982).CrossRefGoogle Scholar
16. Fabish, T. J. and Duke, C. B., J. Appl. Phys, 48, 4256 (1977).CrossRefGoogle Scholar
17. Duke, C. B. and Fabish, T. J., J. Appl. Phys. 49, 315 (1978).CrossRefGoogle Scholar
18. Bui, A., Carachano, H. and Sanchez, D., J. Appl. Phys. 43,3794 (1972).Google Scholar
19. Fowkes, F. M. and Hielscher, F. H., Spontaneous Electrostatic Precipitation of Dust U.S. Bur. Mines Contract #G0110269 Final Report (May 15, 1973).Google Scholar
20. Anderson, H. R., Fowkes, F. M., and Hielscher, F. H., J. Poly, Sci., Poly, Phys. 14, 879 (1976).CrossRefGoogle Scholar
21. Fowkes, F. M. and Hielscher, F. H., Organic Coatings & Plastics Chem. 42, 169 (1980).Google Scholar