Abstract: The new UV-curable optical fiber coatings were prepared by blending of epoxyacrylate and polyurethane acrylate.Their main properties are better.The effects of mainbody composition,photoinitiator,active diluent and curing technology on curing rate of UV-curable optical fiber coating were studid in this paper.It is found that the suitable ratio of epoxyacrylate and polyurethane acrylate is 4:6～6:4,the best content of active diluent is not more than 20%.At the same time we found the distance from UV lamp to sample and the thickness of sample have great effects on curing rate.

Key words: UV-curable optical fiber coating, epoxyacrylate, polyurethane acrylate