The Effect of Surface Pretreatment on Water Absorption and Wet Adhesion of Organic Coatings

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A study was conducted on the effects of surface pre-treatment with 3- aminopropyltriethoxysilane (3-APS) on the water absorption and adhesion behaviour of two commercial alkyd and epoxy polyamide organic coatings on mild steel and glass substrates. The results indicated that using 3-APS as surface pre-treatment prior to coating resulted in a significant reduction of total water absorption for alkyd on both mild steel and glass substrate. Subsequently ile adhesion of alkyd is enhanced on both pre-treated mild steel and glass substrate. However 3-APS pre-treatment of mild steel increases water absorption of epoxy and lowers its adhesion strength. While 3-APS pre-treatment of glass reduces water absorption of epoxy and subsequently enhances the overall wet adhesion. These data are consistent with the known adsorption behaviour of 3-APS to steel, i.e. as an easily hydrolysed hydrogen-bond to the amine group, rather than as the more stable metal-oxide-silicon bond.

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Periodical:

Edited by:

A.K. Arof and S.A. Hashim Ali

Pages:

1-4

DOI:

10.4028/www.scientific.net/MSF.517.1

Citation:

M. K. Harun et al., "The Effect of Surface Pretreatment on Water Absorption and Wet Adhesion of Organic Coatings ", Materials Science Forum, Vol. 517, pp. 1-4, 2006

Online since:

June 2006

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$35.00

[1] H. Leidheiser Jr., W. Funke, J.O.C.C.A., Vol. 70 (1987), p.121.

[2] J.F. Watts, J.E. Castle, Journal of Materials Science, Vol. 83 (1983), p.2987.

[3] H. Leidheiser Jr., Corrosion, Vol. 38 (1982), p.374.

[4] F.M. Fowkes: Physico-chemical Aspects of Polymer Surface (Plenum, New York 1983).

[5] J.W. Holubka, J.E. deVries, R.A. Dickie, Ind. Eng. Chem. Prod. Res. Dev., Vol. 23 (1984), p.63.

[6] S.J. Spadafora, J.O.C.C.A., Vol. 72 (1988), p.276.

[7] H. Leidheiser Jr., W. Funke, J.O.C.C.A., Vol. 5 (1987), p.121.

[8] N.G. Cave, A.J. Kinloch, Polymer, Vol. 33 (1992), p.1162.

[9] E.P. Pleuddemann, P. Silane, J. of Adhesion, Vol. 2 (1970), p.187.

[10] K. Nakamura, T. Ueda, S. Hosono, T. Maruno, Int. J. Adhesion and Adhesives., Vol. 7 (1987), p.209.

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