Abstract: Solid-liquid phase change materials(PCM) have been widely used in air-conditioning clothes, however, they have problems of overlarge deformation during the process of phase changing, and are difficult to control. In this paper，several PEGs were chosen as PCM，and PP as frame material. PEG-PP composite PCM was prepared, called form-stable PCM. And then the macro and micro structure of composite material was observed. The fusing temperature and the latent heat were measured by DSC. At last, the practical thermal effect of composite PCM was tested by Infrared Thermal Mapping Technique to verify the feasibility of application.

Key words: form-stable phase change material, polyethylene glycol, PP, latent heat, infrared thermal imaging