Preparation of Urethane Acrylate Mixture and Their Various Properties for DLP-SLA Type 3D Printer

摘要

UV curable coating materials has been widely used various industries such as automotive,coil coating,exterior wood printing and adhesives owing to environmental advantages.In this research,we synthesized eco-friendly urethane acrylate (UA) using isosorbide and other acrylate monomers to enhance film properties and their curing kinetics.Especially we used non yellowing type of isocyanate Isophorone diisocyanate (IPDI).And urethane acrylate were polymerized isosobide methacrylate and poly(tetramethylene ether) glycol (PTMG).It were found that the molecular weight average (Mw) for PUA has a range of 15,000-20,000 g/mol and PDI of 2.1~2.5 via Gel permeation chromatography (GPC).Finally we observed pencil hardness and their curing kinetics of isosobide-PTMG methacrylate according to different kinds of isocyanate.