A Study On Uv Coating Containing Novel Flame Retardant

UV coatings are environmentally friendly coatings. They are widely used on such heat-sensitive substrates as plastic, wood etc., for its pollution-free, fast curing and energy saving properties. The substrates as plastic, wood etc., are claimed for flame resistance in special situation. has hindered its further application. Therefore, it is significative to study the flame resistance of UV coatings used in these substrates.A new nitrogen flame retardant is applied to UV coating. By means of horizontal flame test, DSC, FTIR and so on, we studied the effect of POP-290 and different monomers (TMPTA, HDDA, TPGDA and so on) on the UV coatings and the relationship between LOI and the horizontal burning grading. The results showed that:With the increasing of POP-290 content,both LOI and the horizontal burning grading increased. After blending the nitrogen flame retardant with acrylate UV coating, the flame retardance of the UV coating got effectively improved, and the LOI increased from 21 to 27. The POP-290 took part in UV-curable reaction, which improved the compatibility. It was found that the gel content of the film cured increased with the increasing of POP-290 content. With the increasing of monomer content, the flame retardance got worse. The DSC showed that POP-290 improved the Tg of EA coating.These results made it possible to modify UV-curing material by adding hybrid nitrogen flame retardant. And it provided the great reference to the UV-curing technique.