Abstract: UVcurable thermo-sensitive recording layer of a thermal-reversible transparent imaging material was prepared by mixing stearic acid,polyethylene glycol stearate in acrylate oligomer.Its mechanism between long-chain molecule and acrylate resin was studied by polarizing microscope,XRD and Differential Scanning Calorimetry (DSC).The results showed that the transition of UV curable recording layer from white and non-transparent state to transparent state happened depending on the transition of long-chain molecule from crystallization state to amorphous state,the work combined with stearic acid and polyethylene glycol stearate gave the recording layer a wider range of transparent temperature.And the T_g study showed that the UV curable thermo-sensitive layer showed itself better heat-resisting performance than thermal-plastic thermo-sensitive layer,therefore the layer repetitive using ability was improved.

Key words: thermo-sensitive, UV curable, recording layer