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1887
Volume 62, Issue 3
  • ISSN: 2056-5135

Abstract

Stress whitening is a long-standing problem and scientific work has focused on evaluating causes of this in bulk polymer systems. In this paper we focus on this optical defect exhibited by a complex thermosetting polyester melamine coating system used extensively in the pre-coated metal industry. There are several mechanisms proposed for how stress whitening occurs and hence there is uncertainty over the causes in the systems mentioned. The most likely explanation given to date is that a number of proposed micro-mechanisms exist, which one is occurring is entirely dependent on the system being investigated. The work presented shows that the presence of dissimilar particles is the cause of the stress whitening. The proposed mechanism for whitening and its disappearance in this case is a time and temperature dependent change in density, i.e. cracking or voiding, where the cracks are outside the range that scatters light with an increase in temperature.

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2018-01-01
2024-06-12
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References

  1. Sander J. “Coil Coating”, Vincentz Network GmbH and Co, Hanover, Germany, 2014, 185 pp [Google Scholar]
  2. Ueda K., Kanai H., and Amari T. Prog. Org. Coat., 2002, 45, (1), 15 LINK https://doi.org/10.1016/S0300-9440(02)00068-1 [Google Scholar]
  3. Giannakopoulos I., and Taylor A. C. Prog. Org. Coat., 2015, 78, 265 LINK https://doi.org/10.1016/j.porgcoat.2014.08.009 [Google Scholar]
  4. Ueda K., Kanai H., and Amari T. Prog. Org. Coat., 2002, 45, (2–3), 267 LINK https://doi.org/10.1016/S0300-9440(01)00255-7 [Google Scholar]
  5. Ueda K., Kanai H., Suzuki T., and Amari T. Prog. Org. Coat., 2001, 43, (4), 233 LINK https://doi.org/10.1016/S0300-9440(01)00199-0 [Google Scholar]
  6. Diakoumakos C. D., and Jones F. N. Surf. Coat. Technol., 2001, 140, (3), 183 LINK https://doi.org/10.1016/S0257-8972(01)01047-7 [Google Scholar]
  7. Kim H. Y., Hwang B. C., and Bae W. B. J. Mater. Process. Technol., 2002, 120, (1–3), 290 LINK https://doi.org/10.1016/S0924-0136(01)01088-3 [Google Scholar]
  8. Pilati F., Toselli M., Messori M., van Dijk H., Yeates S. G., Petterson B., Tuck N., Storer B., Howell D., Rayner G., Barber D. C., “Waterborne and Solvent Based Saturated Polyesters and their End User Applications”, ed. and Sanders D. 4, John Wiley and Sons, Chichester, UK, 1999 [Google Scholar]
  9. Allauddin S., Chandran M. K. A., Jena K. K., Narayan R., and Raju K. V. S. N. Prog. Org. Coat., 2013, 76, (10), 1402 LINK https://doi.org/10.1016/j.porgcoat.2013.04.015 [Google Scholar]
  10. Dasari A., and Misra R. D. K. Acta Mater., 2004, 52, (6), 1683 LINK https://doi.org/10.1016/j.actamat.2003.12.013 [Google Scholar]
  11. Tanniru M., and Misra R. D. K. Mater. Sci. Eng.: A, 2006, 424, (1–2), 53 LINK https://doi.org/10.1016/j.msea.2006.02.034 [Google Scholar]
  12. Rengarajan R., Kesavan S. K., Fullerton K. L., and Lee S. J. Appl. Polym. Sci., 1992, 45, (2), 317 LINK https://doi.org/10.1002/app.1992.070450214 [Google Scholar]
  13. Dasari A., Rohrmann J., and Misra R. D. K. Mater. Sci. Eng.: A, 2003, 360, (1–2), 237 LINK https://doi.org/10.1016/S0921-5093(03)00405-2 [Google Scholar]
  14. Young R. J., and Lovell P. A. “Introduction to Polymers”, 2nd Edn., CRC Press, Boca Raton, USA, 1991 [Google Scholar]
  15. Cherry B. W., and Hin T. S. Polymer, 1981, 22, (12), 1610 LINK https://doi.org/10.1016/0032-3861(81)90372-4 [Google Scholar]
  16. Breuer H., Haaf F., and Stabenow J. J. Macromol. Sci., Part B: Phys., 1977, 14, (3), 387 LINK https://doi.org/10.1080/00222347708212908 [Google Scholar]
  17. Liu Y., Kennard C. H. L., Truss R. W., and Calos N. J. Polymer, 1997, 38, (11), 2797 LINK https://doi.org/10.1016/S0032-3861(97)85617-0 [Google Scholar]
  18. Hadal R., Yuan Q., Jog J. P., and Misra R. D. K. Mater. Sci. Eng.: A, 2006, 418, (1–2), 268 LINK https://doi.org/10.1016/j.msea.2005.11.032 [Google Scholar]
  19. Thiele E. S., and French R. H. J. Am. Ceram. Soc., 1998, 81, (3), 469 LINK https://doi.org/10.1111/j.1151-2916.1998.tb02364.x [Google Scholar]
  20. Nathani H., Dasari A., and Misra R. D. K. Acta Mater., 2004, 52, (11), 3217 LINK https://doi.org/10.1016/j.actamat.2004.03.021 [Google Scholar]
  21. Dasari A., Rohrmann J., and Misra R. D. K. Mater. Sci. Eng.: A, 2003, 351, (1–2), 200 LINK https://doi.org/10.1016/S0921-5093(02)00854-7 [Google Scholar]
  22. Surampadi N. L., Pesacreta T. C., and Misra R. D. K. Mater. Sci. Eng.: A, 2007, 456, (1–2), 218 LINK https://doi.org/10.1016/j.msea.2006.11.134 [Google Scholar]
  23. Mustata F., Tudorachi N., and Bicu I. Compos. B: Eng., 2013, 55, 470 LINK https://doi.org/10.1016/j.compositesb.2013.07.023 [Google Scholar]
  24. Pae K. D., Chu H.-C., Lee J. K., and Kim J.-H. Polym. Eng. Sci., 2000, 40, (8), 1783 LINK https://doi.org/10.1002/pen.11310 [Google Scholar]
  25. Gunel E. M., and Basaran C. J. Eng. Mater. Technol., 2010, 132, (3), 031002 LINK https://doi.org/10.1115/1.4001262 [Google Scholar]
  26. Shokrieh M. M., Akbari S., Daneshvar A., ‘Reduction of Residual Stresses in Polymer Composites Using Nano-Additives’ in “Residual Stresses in Composite Materials”, ed. and Shokrieh M Woodhead Publishing Ltd, Cambridge, UK, 2014, pp. 350–373 LINK https://doi.org/10.1533/9780857098597.2.350 [Google Scholar]
  27. Buder-Stroisznigg M., Wallner G. M., Strauß B., Jandel L., and Lang R. W. Prog. Org. Coat., 2009, 65, (3), 328 LINK https://doi.org/10.1016/j.porgcoat.2009.01.007 [Google Scholar]
  28. Martinez A. B., Gamez-Perez J., Sanchez-Soto M., Velasco J. I., Santana O. O., and Maspoch M. L. Eng. Fail. Anal., 2009, 16, (8), 2604 LINK https://doi.org/10.1016/j.engfailanal.2009.04.027 [Google Scholar]
  29. Kim S.-R., and Nairn J. A. Eng. Fract. Mech., 2000, 65, (5), 573 LINK https://doi.org/10.1016/S0013-7944(99)00141-1 [Google Scholar]
  30. Giannakopoulos I., and Taylor A. C. Prog. Org. Coat., 2013, 76, (11), 1556 LINK https://doi.org/10.1016/j.porgcoat.2013.06.010 [Google Scholar]
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