In this study, polyurethane powder clear coating systems consisting of polyester resin,
blocked polyisocyanate and hydrotalcites (HT) intercalated with carbonate,
aminododecanate, and ethylenediaminetetraacetate were examined. The blocked
polyisocyanate crosslinkers for powder coatings were synthesized using
trimethyhexamethylene diisocyanate (TMDI), formic acid, ε-caprolactam, dibutyltin dilaurate
and triethylamine as catalysts. The powder coatings were investigated by atomic force …