Effect of Cross Linking Agent on Properties of UV Curable Epoxy-Acrylate Film

Coatings with ultraviolet cure ability due to their distinct properties, such as high quality, high efficiency, energy saving, low VOC have been used in many fields. Thesecoatings consist of oligomer, monomer and photoinitiator [1, 2]. One of the most important acrylate resins in UV-curing systems is bisphenol-A epoxy diacrylate due to its excellent properties and low cost. For Imoroving the hardness of films in organic coatings it s well known that one of the methods forimproving the hardness of polymeric film is increasing its cross linking density [3-5]. This study describes an attempt to synthesis a new kind ofhigh-hardness epoxy acrylate by introducing UV curable tri functional urethane methacrylate as a crosslinking agent