Development and evaluation of terminally epoxidized triglycerides for coatings applications

Authors: Earls, Jim; White, Jerry; Dettloff, Marvin; Null, Marty

Source: Journal of Coatings Technology and Research, Volume 1, Number 3, July 2004 , pp. 243-245(3)

Publisher: Springer

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Abstract:

Epoxidized 10-undecenoic acid triglyceride, an experimental seed oil derivative that has a terminal epoxy group on each of the three acyl glyceride segments, has been found to have good reactivity with amine curatives and allows room temperature cures to be obtained. Coatings based on epoxidized 10-undercenoic acid triglyceride have also shown excellent UV stability. As an example, coatings samples placed in a QUVA chamber exhibit no loss in gloss after 3000 hr of a cycled exposure to high intensity UV lamps and moisture at temperatures of 50-60°C. In comparison, coatings based on standard liquid epoxy resins (LERs) and commercially available hydrogenated LERs lose gloss due to chalking/decomposition within 200-800 hr.

Keywords: Epoxy resins; reactive diluents; accelerated testing; weatherability; high-solids; thermoset; VOC control; epoxy

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s11998-004-0019-x

Publication date: 2004-07-01