Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10397998 | Progress in Organic Coatings | 2013 | 6 Pages |
Abstract
Acrylic waterborne coatings free of volatile coalescing agents were produced and characterized. The film-formers used in the coatings were resins incorporating an allylic fatty acid derivative (AFAD) and an acrylic fatty acid derivative (AcFAD), either as reactive (non-volatile) coalescing agents or as co-monomers. The minimum film-forming temperatures of the new coatings were lower than the reference, confirming that AFAD and AcFAD act as coalescing agents. On the other hand, the observed reductions in through drying-time and increase in scrub resistance, more evident for AcFAD, indicating that reaction between the conjugated double bonds in the fatty acid derivatives and atmospheric oxygen-oxidative cure-took place and provided an effective self-crosslinking drying mechanism.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Joana V. Barbosa, Etelvina Veludo, Jorge Moniz, Adélio Mendes, Fernão D. Magalhães, Margarida M.S.M. Bastos,