Journal
PROGRESS IN ORGANIC COATINGS
Volume 63, Issue 2, Pages 155-159Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2008.05.003
Keywords
fatty acids; reactive diluents; coatings; thermal curing; film properties
Funding
- The Swedish Agency for Innovation Systems (VIN-NOVA) [P29737-1]
- SSAB Tunnplat AB
- Lantmannen
- Akzo Nobel Nippon Paint AB
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Four different fatty acid methyl esters (FAMEs): rape seed methyl ester (RME), tall oil methyl ester(TOME), and two types of linseed oil methyl ester (Linutin) have been studied as reactive diluents in thermally cured solvent-borne coil-coatings. The purpose was to evaluate the effect of fatty acid methyl ester structure on the curing performance and final properties of the coating. The permanent incorporation of the reactive diluent via transesterification reaction has been followed with H-1 NMR analysis of model systems. Dynamic mechanical analysis (DMA) measurements, of free-standing films, show that the glass transition temperature (T-g) decreases upon addition of I he reactive diluent. Both the amount of incorporated reactive diluent and the final film properties are affected by the number and placement of alkene-bonds in the FAME. (C) 2008 Elsevier B.V. All rights reserved.
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