Scientists from India conducted an experiment to analyze the suitable source needed to manufacture UV-curable polyurethane dispersions for coating applications. They synthesized a series of novel waterborne UV-curable polyurethane dispersions from castor oil, Isophorone diisocyanate (IPDI), Dimethylolpropionic Acid (DMPA)and Hydroxyethylmethacrylate (HEMA) by acetone process.
The prepared UV-PUDs were mixed with three different monomers and characterization studies were conducted. Results showed that the combination of renewable resource (castor oil) and environment compliant technology could make these UV-PUDs suitable for coating applications.