Epoxy based coatings on glass: strengthening mechanisms

Glass may be strengthened by epoxy coatings although the strengthening mechanisms remain unclear. Possible strengthening mechanisms are reviewed and are used to analyse strength data for both a solvent based and a water based coating system. The coatings either fill (solvent based coatings), or part...

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Bibliographic Details
Published inJournal of non-crystalline solids Vol. 315; no. 3; pp. 276 - 287
Main Authors Hand, R.J, Ellis, B, Whittle, B.R, Wang, F.H
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 2003
Elsevier
Subjects
Applied sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Exact sciences and technology
Fibers and threads
Forms of application and semi-finished materials
Glasses
Miscellaneous
Polymer industry, paints, wood
Technology of polymers
68.35.Gy
C210
62.20.Mk
S400
Strengthening
Coating material
Glass
Epoxy resin
Mechanical properties
Experimental study
Mechanism
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Summary:Glass may be strengthened by epoxy coatings although the strengthening mechanisms remain unclear. Possible strengthening mechanisms are reviewed and are used to analyse strength data for both a solvent based and a water based coating system. The coatings either fill (solvent based coatings), or partially fill (water based coatings) surface cracks and it is shown that closure stresses arising from the thermal expansion mismatch of the coating within these cracks can account for the observed degrees of strengthening. It is also demonstrated that other suggested mechanisms such as flaw healing cannot fully account for the observed degree of strengthening.
ISSN:0022-3093
1873-4812
DOI:10.1016/S0022-3093(02)01611-3