Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-27T09:05:13.617Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface Modification by Ordered Monolayers: New Ways of Protecting Materials Against Corrosion

Published online by Cambridge University Press:  29 November 2013

M. Rohwerder  and
M. Stratmann
Get access

Extract

Metal/polymer composites are used in numerous technical applications. For example, polymer coatings on metal surfaces are used for corrosion protection, metal films on polymers inhibit static buildup, and polymers between two metals can serve as a “glue” for connecting materials that cannot be welded. Polymer/metal composites also play an important role in modern electronics. In condensers, polymers serve as insulating layers between metallic leads and are used to encapsulate entire electronic circuits. In all circumstances, interfaces are formed between the two different materials, and since the chemistry and structure change abruptly, interfacial failure is frequently observed.

The cause of failure may just be mechanical (e.g., shrinkage of the polymer during curing), or the interface stability may be degraded by attack of aggressive species, resulting in delamination. More specifically, loss of adhesion is directly caused by interfacial electrochemical reactions that nucleate at a defect and progress into intact regions of the interface. This occurs for encapsulated electronic parts in humid atmospheres as well as for lacquers on automotive parts.

Thus the investigation of corrosion reactions at a buried interface is an important area of research, but it is made very difficult by the fact that most electrochemical methods do not give information on localized reaction kinetics at a buried (metal/polymer) interface. This situation has changed with the invention and development of the scanning Kelvin probe (SKP). This method allows, for the first time, local analysis of reactions occurring at a buried metal/polymer interface. Based on the results obtained with the SKP, a detailed reaction model for the delamination process has been developed. This understanding has led to the development of new approaches that protect the interface from delamination. The idea is to chemically modify the interface using Afunctional molecules that promote adhesion between metal and polymer surfaces.

Type
Corrosion Science
Information
MRS Bulletin , Volume 24 , Issue 7 , July 1999 , pp. 43 - 47
Copyright
Copyright © Materials Research Society 1999

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.Leidheiser, H., ed., Corrosion Control by Organic Coatings (National Association of Corrosion Engineers, Houston, 1981).Google Scholar
2.Dickie, R.A. and Floyd, F.L., Polymeric Materials for Corrosion Control (American Chemical Society. Washington. DC. 1986).CrossRefGoogle Scholar
3.Maeda, S., Asai, T., Fujii, S., Nomura, Y., and Nomoto, A., J. Adhesion Sci. Technol. 2 (1988) p. 271.CrossRefGoogle Scholar
4.Feast, W.J. and Munro, H.S., Polymer Surfaces and Interfaces (John Wiley & Sons, New York, 1987) p. 75.Google Scholar
5.Koehler, E.L., Corrosion 33 (1977) p. 209.CrossRefGoogle Scholar
6.Leidheiser, H. Jr., Wang, W., and Igetoft, L., Prog. Org. Coat. 11 (1983) p. 19.CrossRefGoogle Scholar
7.Leidheiser, H., ed., Corrosion Control by Organic Coatings (National Association of Corrosion Engineers, Houston, 1981) p. 70.Google Scholar
8.Dickie, R.A. and Floyd, F.L., Polymeric Materials for Corrosion Control (American Chemical Society, Washington, DC, 1986) p. 124.CrossRefGoogle Scholar
9.Koehler, E.L., in Proc. 4th Int. Congress on Metallic Corrosion 1969, edited by Hammer, N.E. (National Association of Corrosion Engineers, Houston, 1972) p. 736.Google Scholar
10.Dickie, R.A. and Floyd, F.L., Polymeric Materinls for Corrosion Control (American Chemical Society, Washington, DC, 1986) p. 87.CrossRefGoogle Scholar
11.Stratmann, M. and Streckel, H., Corros. Sci. 30 (1990) p. 681.CrossRefGoogle Scholar
12.Leng, A., Streckel, H., and Stratmann, M., Corros. Sci. 41 (1999) p. 547.CrossRefGoogle Scholar
13.Leng, A., Streckel, H., and Stratmann, M., Corros. Sci. 41 (1999) p. 579.CrossRefGoogle Scholar
14.Leng, A., Streckel, H., Hofmann, K., and Stratmann, M., Corros. Sci. 41 (1999) p. 599.CrossRefGoogle Scholar
15.Stratmann, M. and Streckel, H., Corros. Sci. 30 (1990) p. 697.CrossRefGoogle Scholar
16.Stratmann, M., Streckel, H., Kim, K.T., and Crockett, S., Corros. Sci. 30 (1990) p. 715.CrossRefGoogle Scholar
17.Stratmann, M., Wolpers, M., Streckel, H., and Feser, R., Ber. Bunsenges. Phys. Chem. 95 (1991) p. 1365.CrossRefGoogle Scholar
18.Adamson, A.W., Physical Cliemistry of Surfaces (John Wiley & Sons, New York, 1990).Google Scholar
19.Tarasevich, M.R., Sadkowski, A., and Yeager, E., in Comprehensive Treatise of Electrochemistry, vol. 7, edited by Conway, B.E., Bockris, J. O'M., Yeager, E., Khan, S.U.M., and White, R.E. (Plenum Press, New York, 1983) p. 312.Google Scholar
20.Vago, E., de Weldige, K., Rohwerder, M., and Stratmann, M., Fresen. J. Anal. Chem. 335 (1995) p. 316.CrossRefGoogle Scholar
21.Volmer, M., Stratmann, M., and Viefhaus, H., Surf. I. Anal. 16 (1990) p. 278.CrossRefGoogle Scholar
22.Volmer-Uebing, M. and Stratmann, M., Appl. Surf. Sci. 55 (1992) p. 19.CrossRefGoogle Scholar
23.Rohwerder, M., de Weldige, K., and Stratmann, M., J. Solid-State Electrochem. 2 (1998) p. 88.CrossRefGoogle Scholar
24.Widrig, C.A., Alves, C.A., and Porter, M.D., J. Am. Chem. Soc. 113 (1991) p. 2805.CrossRefGoogle Scholar
25.Alves, C.A., Smith, E.L., Widrig, C.A., and Porter, M.D., in Proc. Applied Spectroscopy in Materials Science II (International Society for Optical Engineering, Los Angeles, January 20-22, 1992) p. 125.CrossRefGoogle Scholar
26.Sun, L. and Crooks, R.M., J. Electrochem. Soc. 138 (1991) p. L23.CrossRefGoogle Scholar
27.Kim, Y.-T. and Bard, A.J., Langmuir 8 (1992) p. 1096.CrossRefGoogle Scholar
28.Edinger, K., Gölzhäuser, A., Demota, K., Wöll, Ch., and Grunze, M., Langmuir 9 (1993) p. 4.CrossRefGoogle Scholar
29.Poirier, G.E. and Tarlov, M.J., Langmuir 10 (1994) p. 2853.CrossRefGoogle Scholar
30.Delamarche, E., Michel, B., Gerber, Ch., Anselmetti, D., Güntherodt, H.-J., Wolf, H., and Ringsdorf, H., Langmuir 10 (1994) p. 2869.CrossRefGoogle Scholar
31.Sondag-Huethorst, J.A.M., Schönenberger, C., and Fokkink, L.G.J., J. Phys. Chem. 98 (27) (1994) p. 6826.CrossRefGoogle Scholar
32.Schönenberger, C., Jorritsma, J., Sondag-Huethorst, J.A.M., and Fokkink, L.G.J., J. Phys. Chem. 99 (10) (1995) p. 3259.CrossRefGoogle Scholar