Advertisement

Journal of Coatings Technology

, Volume 74, Issue 933, pp 125–134 | Cite as

Nanostructured polyurethane ceramer coatings for aircraft

  • Mark D. Soucek
  • Hai Ni
Technical Articles

Abstract

A new low VOC (volatile organic compounds) polyurethane/oligosiloxane coating was formulated using 1,6-hexamethylene diisocyanate (HDI) isocyanurate, alkoxysilane-functionalized HDI isocyanurate, tetraethyl orthosilicate (TEOS) oligomers, and three cycloaliphatic polyesters. One series of polyesters was synthesized using 1,4-cyclohexanedimethanol (CHDM) with 1,4-cyclohexanedicarboxylic acid (1,4-CHDA) and 1,3-cyclohexanedicarboxylic acid (1,3-CHDA). A second series of polyesters was synthesized using 2-butyl-2-ethyl-1,3-propanediol (BEPD) with 1,4-CHDA or 1,4-CHDA, and 1,3-CHDA, respectively. The polyurethane provided the general mechanical properties and the polysiloxane functioned as an adhesion promoter and corrosion inhibitor. The continuous organic polyurethane phase was coupled with the inorganic polysiloxane phase via the alkoxysilane-functionalized HDI isocyanurate. The general coatings, tensile, and viscoelastic properties were evaluated for the ceramer coatings as functions of the polyester and concentration of TEOS oligomers. Damage tolerance was evaluated via fracture toughness and development of the film deformation zone prior to crack propagation. The coatings’ properties were dominated by the organic phase. The film morphology was investigated using the combination of SEM (scanning electron microscope) and X-ray analysis. Phase separation was observed for ceramer coatings resulting in SiO2 particles. The size of the preceramic silicon-oxo-particles was controlled by the Tg of the organic phase and the concentration of TEOS oligomers.

Keywords

Fracture Toughness Polyurethane Isocyanurate Ceramer Coating Coating Technology 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    Chattopadhyay, A.K. and Zenter, M.R., “Aerospace and Aircraft Coatings,”Federation Series on Coatings Technology, Federation of Societies for Coatings Technology, Philadelphia, PA, 1990.Google Scholar
  2. (2).
    Holmes-Farley, S.D. and Yanyo, L.C.,J. Adhes. Sci. Technol., 5(2), 131–151 (1991).CrossRefGoogle Scholar
  3. (3).
    Hegedus, C.R., Pulley, D.F., Spadafora, S.J.B., Eng, A.T., and Hirst, D.J., “A Review of Organic Coating Technology for U.S. Naval Aircraft,”Journal of Coatings Technology,61, No. 778, 31 (1989).Google Scholar
  4. (4).
    Child, T. and Van Ooij, W.J.Coat. World, 4 (3), 42 (1999).Google Scholar
  5. (5).
    Sabata, A., Van Ooij, W.J., and Koch, R.J.,J. Adhes. Sci. Technol., 7 (11), 1153 (1993).CrossRefGoogle Scholar
  6. (6).
    Witucki, G.L., “A Silane Primer: Chemistry and Applications of Alkoxy Silanes,”Journal of Coatings Technology,65, No. 822, 57 (1993).Google Scholar
  7. (7).
    Brinker, C.J. and Scherer, G.W.,Sol-Gel Science, Chapter 14, p. 849, Academic, New York, 1990.Google Scholar
  8. (8).
    Berger, D.M.,Metal Finishing, 77 (4), 27 (1979).Google Scholar
  9. (9).
    Ni, H., Simonsick, W.J., Skaja, A.D., Williams, J.P., and Soucek, M.D.,Prog. Org. Coat., 38, 97 (2000).CrossRefGoogle Scholar
  10. (10).
    Ni, H., Skaja, A.D., and Soucek, M.D.,Prog. Org. Coat., 40, 175 (2000).CrossRefGoogle Scholar
  11. (11).
    Ni, H., Aaserud, D.J., Simonsick, W.J. Jr., and Soucek, M.D.,Polymer, 41, 57 (2000).CrossRefGoogle Scholar
  12. (12).
    Ni, H., Skaja, A.D., Sailer, R.A., and Soucek, M.D.,Macromol. Chem. Phys.,201 (6), 722 (2000).CrossRefGoogle Scholar
  13. (13).
    Ni, H., Skaja, A.D., Sailer, R.A., and Soucek, M.D.,Polym. Prepr., Am. Chem. Soc., Div. Polym. Chem., 39 (1), 367, 1998.Google Scholar
  14. (14).
    Ni, H., Skaja, A.D., Sailer, R.A., and Soucek, M.D.,Polym. Mater. Sci. Eng., Am. Chem. Soc., Div. Polym. Mater. Sci. Eng., 79, 21, 1998.Google Scholar
  15. (15).
    Ni, H., Daum, J.L., Thiltgen, P.R., Soucek, M.D., Simonsick, W.J. Jr., and Zhong, W., “Cycloaliphatic Polyesters Based High Solids Polyurethane Coatings: I. The Effect of Difunctional Acid,”Prog. Org. Coat. 45 (1), 48 (2002).CrossRefGoogle Scholar
  16. (16).
    Ni, H., Daum, J.L., and Soucek, M.D. “Cycloaliphatic Polyesters Based High Solids Polyurethane Coatings: I. The Effect of Difunctional Alcohols,”Journal of Coatings Technology,74, No. 928, 49 (2002).CrossRefGoogle Scholar
  17. (17).
    Johnson, L.K. and Sade, W.T., “New Monomers for Polyester Powder Coating Resins,”Journal of Coatings Technology,65, No. 826, 19 (1993).Google Scholar
  18. (18).
    Heidt, P.C. “Cycloaliphatic-Based Thermoset Industrial Coatings,” Waterborne, Higher-Solids, and Power Coatings Symposium, sponsored by The University of Southern Mississippi, New Orleans, LA, February 9–11, 1994.Google Scholar
  19. (19).
    Eastman Publication N-341A.Google Scholar
  20. (20).
    Eastman Publication N-335A.Google Scholar
  21. (21).
    Eastman Publication N-327A.Google Scholar
  22. (22).
    Williams, J.G.,Fracture Mechanics of Polymers, John Wiley & Sons, New York, 1987.Google Scholar
  23. (23).
    Frings, S., van Nostrum, C.F., van der Linde, R., Meinema, H.A., and Rentrop, C.H.A., “Morphology of Hybrid Coatings Based on Polyester, Melamine Resin, and Silica, and the Relation with Hardness and Scratch Resistance,”Journal of Coatings Technology,72, No. 901, 83 (2000).CrossRefGoogle Scholar
  24. (24).
    Huang, H.H. and Wilkes, G.L.,Polymer, 30, 2001 (1989).CrossRefGoogle Scholar
  25. (25).
    Tuman, S.J. and Soucek, M.D., “Novel Inorganic/Organic Coatings Based on Linseed Oil and Sunflower Oil with Sol-Gel Precursors,”Journal of Coatings Technology,68, No. 854, 73 (1996).Google Scholar
  26. (26) (a).
    Sailer, R.A. and Soucek, M.D.,Prog. Org. Coat., 33, 36 (1998).CrossRefGoogle Scholar
  27. (26) (b).
    Sailer, R.A., Wegner, J.R., Hurtt, G.J., and Soucek, M.D.,Prog. Org. Coat., 33, 177 (1998).CrossRefGoogle Scholar
  28. (27).
    Wold, C.R. and Soucek, M.D., “Mixed Metal Oxide Inorganic/Organic Coatings,”Journal of Coatings Technology,70, No. 882, 43 (1998).CrossRefGoogle Scholar
  29. (28).
    Ballard, R.L., Tuman, S.J., Fouquette, D.J., Stegmiller, W., and Soucek, M.D.,Chem Maters., 11, 726 (1999).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media 2002

Authors and Affiliations

  • Mark D. Soucek
    • 1
  • Hai Ni
    • 1
  1. 1.North Dakota State UniversityUSA

Personalised recommendations