Residual strain due to solvent loss from a crosslinked coating

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AuthorSearch for:
TypeArticle
Journal titleJournal of Coatings Technology
ISSN0361-8773
Volume53
Issue672
Pages8592; # of pages: 8
Subjectepoxy coatings; solvents; residual deformation; solvent evaporation curing; adhesion; Buildings; enduit a l'epoxy; solvant; deformation residuelle; durcissement par evaporation; adherence
AbstractData show that epoxy coatings cast from a very slow- evaporating solvent have residual internal strain that increases with coating thickness. A theory is presented, which agrees well with experimental results, based on the idea that solvent volume loss from the crosslinked coating is responsible for the strain. The strain depends on solvent evaporation and diffusion rates, as well as the curing reaction kinetics and coating solution concentration. A calculation, using this theory, models the excellent adhesion of epoxy coatings and shows that adhesion may be improved by using a faster evaporating solvent.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-P-960
NRC number19136
95
NPARC number20331268
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Record identifierafc7f85c-6bcb-4179-8ec1-ce31f2dce731
Record created2012-07-18
Record modified2016-05-09
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