Cross-linked shape-stabilized phase change materials(STPCM) with different gel contents were prepared with high-density polyethylene(HDPE) and 1∶1 blend of HDPE and low-density polyethylene(LDPE) as matrices.The relationship between the gel content of the materials and the content of the cross-linker-dicumyl peroxide(DCP) was discussed.The stabilities of the materials were investigated by circulation experiments.The thermal properties of the cross-linked STPCM were measured by DSC.The result shows that cro...