Hostname: page-component-7bb8b95d7b-dtkg6 Total loading time: 0 Render date: 2024-10-04T04:20:38.714Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Curing Strategies on Porosity in Silanemodified Silica Colloidal Coatings

Published online by Cambridge University Press:  10 February 2011

M. W. Daniels  and
L. F. Francis
M. W. Daniels
Affiliation:
Department of Chemical Engineering and Materials Science, Center for Interfacial Engineering, University of Minnesota, MN 55455, lfrancis@tc.umn.edu
L. F. Francis
Affiliation:
Department of Chemical Engineering and Materials Science, Center for Interfacial Engineering, University of Minnesota, MN 55455, lfrancis@tc.umn.edu
Get access

Abstract

Suspensions of silica (20 nim) in propoxyethanol were used to make porous silica coatings. A silane coupling agent, glycidoxypropyltrimethoxysilane (GPS), was added as a binder to increase coating durability and prevent cracking. GPS addition prevented crack formation but only when added in large amounts (GPS to silica weight ratio 0.5 to 1) such that porosity was filled by a GPS-based siloxane polymer. Attempts to enhance the fracture toughness of porous coatings through UV curing and glycol additions failed to lead to improvements in the critical cracking thickness (CCT). However, addition of triethylenetetramine resulted in a 3-fold increase in the CCT. Wear resistance increased for both the UV-cured and amine-cured coatings.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 576: Symposium DD – Organic/Inorganic Hybrid Materials II , 1999 , 313
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

REFERENCES

1. Misuda, K., Kijimuta, H., Hasegawa, T., et al., US Patent 5,275,867 (1994).Google Scholar
2. Misuda, K., Kijimuta, H., and Hasegawa, T., US Patent 5, 104,730 (1992).Google Scholar
3. Misuda, K., Suzuki, S., Hasegawa, T., et al.,US Patent #5,264,275 (1993).Google Scholar
4. Martinson, R. E., Stofko, J. J., Sarkar, M., et al., US Patent 5,445,866 (1995).Google Scholar
5. Abe, Y. and T., Noda, US Patent 5,372,884 (1994).Google Scholar
6. Regnier, F. E. and Noel, R., Journal of Chromatographic Science 14, 316–320 (1976).10.1093/chromsci/14.7.316Google Scholar
7. Chiu, R. C., Garino, T. J., and Cima, M. J., J. American Ceramics Soc. 76, 2257–2264 (1993).10.1111/j.1151-2916.1993.tb07762.xGoogle Scholar
8. Croll, S. G., Journal of Applied Polymer Science 23, 847 (1979).10.1002/app.1979.070230319Google Scholar
9. Hu, M. S. and Evans, A. G., Acta Metallurgica 37, 917–925 (1989).10.1016/0001-6160(89)90018-7Google Scholar
10. Daniels, M. and Francis, L., Journal of Colloid and Interface Science 205, 191–200 (1998).10.1006/jcis.1998.5671Google Scholar
11. Plueddemann, E., Silane Coupling Agents (Plenum Press, New York, 1982).10.1007/978-1-4899-0342-6Google Scholar