Thermal properties of 60Co irradiated crosslinked high density polyethylene

Crosslinked high density polyethylene (XLPE) is kind of a solid-solid phase change material with high latent heat. In this study, melt flow indexer prove that such phase change material can be obtained through irradiating high density polyethylene by a 60Co source irradiation. DSC was used to distinguish the phase change temperature and latent heat of the prepared sample, and the specific heat was determined. Also, the structure of the crosslinked polyethylene and uncrosslinked one were analyzed using FTIR, XRD and SEM. Thermogravimetry analysis illustrated the samples׳ stability.