A feasible method was proposed for synthesizing fast curing soft UV-curing resin by using TPO as photoinitiator and 2-EHA as diluent.PUA was prepared through the method of molecular structure design by using polyfenone diisocyanate,polyethylene glycol,ethylene glycol and hydroxyethyl acrylate as raw material.The influence of the content of photoinitiator and diluent on the curing time,tensile properties,stiffness and expansion ratio of the cured specimens were studied.It was found that the resin curing with...