Hostname: page-component-84b7d79bbc-7nlkj Total loading time: 0 Render date: 2024-07-26T08:07:59.487Z Has data issue: false hasContentIssue false
  • English
  • Français

Phthalocyanine and Polyphthalocyanine Coatings for Corrosion Protection of Metals

Published online by Cambridge University Press:  21 February 2011

S. Hettiarachchi ,
Y.W. Chan ,
R.B. Wilson  and
V.S. Agarwala
S. Hettiarachchi
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025
Y.W. Chan
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025
R.B. Wilson
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025
V.S. Agarwala
Affiliation:
Naval Air Development Center, Warminster, PA 18974–5000
Get access

Abstract

The effectiveness of phthalocyanines and polyphthalocyanines as corrosion inhibiting coatings for protection of steel have been studied. The metallo-phthalocyanines studied included phthalocyanine tetracarboxylates of Fe(III), Co(II), VO(IV), Cr(III), Si(IV) and Zn(II). Polymeric phthalocyanine coatings based on Fe(III) polyphthalocyanines gave the highest inhibitor efficiency of 82%, as confirmed by AC impedance analysis. The polymerization was achieved by simple dip coating followed by heat treatment of the coated surface at 450°C in an inert atmosphere. The resulting coating is adherent and electrically conducting when appropriately doped. Our recent findings indicate that the inhibition efficiencies can be further improved by introducing a long alkyl chain into the phthalocyanine molecule.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 125: Symposium N – Materials Stability and Environmental Degradation , 1988 , 321
Copyright
Copyright © Materials Research Society 1988

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

REFERENCES

1. Charadlor, R., Paint Mfg.,6 60 (1964).Google Scholar
2. Rajan, K., Natl. Intl. Serv., AD 720384, U.S. Department of Commerce, Washington, DC (1970).Google Scholar
3. Rajan, K., Final Technical Report, IITRI-C6202–6, Contract No. N00019–70-C-0180, Washington, DC (1970).Google Scholar
4. Longo, F.R., DeLuccia, J.J. and Agarwala, V.S., Proc. 6th European Symp. on Corrosion Inhibitors, Univ. of Ferrara, Ferrara, Italy, 16–20 Sept. (1985), pp.155–166.Google Scholar
5. Agarwala, V.S., Proc. Intl. Congress on Metallic Corrosion, Vol.1, p. 380, Toronto, Canada, June 3–7, (1984).Google Scholar
6. Assor, J., J. Chem. Phys. 43, 2477 (1965).Google Scholar
7. Zerner, M. and Gouterman, M., Theor. Chim. Acta.,4 44 (1966).Google Scholar
8. Kobayashi, T., Kurokawa, F., Ashida, T., Uyeda, N. and Suito, E., J.C.S. Chem. Comm., 1631–1632 (1971).Google Scholar
9. Kobayashi, T., Ashida, T., Uyeda, N., Suito, E. and Kakudo, M., Bull. Chem. Soc. Jpn., 44, 2095–2103 (1971).Google Scholar
10. Wheeler, B., Nagasubramaniam, G., Bard, A., Schechtmen, L., Dinninny, D. and Kenney, M., J. Am. Chem. Soc., 106, 7404–7410 (1984).Google Scholar
11. Wynne, K., Inorg. Chem., 24, 1339–1343 (1985).CrossRefGoogle Scholar
12. Marks, T., Science, 227, 881–889 (1985).Google Scholar
13. Lipp, L.C. and Klemgard, E.N., Lubrication Eng., 22, 187 (1966).Google Scholar
14. Salomon, G., Begelinger, A. and DeGee, A.W.J., Wear, 10 383 (1967).Google Scholar
15. NASA NTIS Technical Note, NTN86–1116, October(1986).Google Scholar
16. Achar, B.N., Fohlen, G.M. and Parker, J.A., J. Polymer Sci., 21, 589 (1983).Google Scholar
17. Hettiarachchi, S., Chan, Y.W., Wilson, R.B. Jr. and Agarwala, V.S., CORROSION'87, Paper No. 223, San Francisco, California, March 9–13, (1987).Google Scholar
18. Hettiarachchi, S., Chan, Y.W., Wilson, R.B. Jr. and Agarwala, V.S., NACE/CORROSION, in print (1988).Google Scholar
19. Hettiarachchi, S., Crawford, E.J., Chan, Y.W., Parish, D., Ackerman, L.L. and Wilson, R.B. Jr., Final Report to Naval Air Development Center, Contract No. N62269–85-R-0290, January (1988).Google Scholar