Studies on Novel UV-Curable Waterborne Polyurethane Coating | Original Article
ABSTRACT
The novel ultraviolet(UV) curable waterborne polyurethane dispersion was formulated from 4,4’-methylenebis(phenyl isocyanate) (MDI),hydroxy terminated unsaturated polyesters (HTUP),2,2-dimethylol propionic acid(DMPA) and Linalool(LL) (a terpiniol).MDI has been selected for receiving more thermo resistant coating. LL has been selected for fast curing process. The resultant dispersion was coated as steel panel. The panels were irradiated by UV mercury lamp (15w) for 10-15 min. The resultant coatings were characterized by thermal and mechanical properties.