초록 |
In this study, phase change materials (PCMs) were prepared by stirring of carbon-based materials, such as expanded graphite (EG) in erythritol, stearic acid, and paraffin. EGs were added to various PCMs at different mass fractions (0.1, 0.2, 0.5, and 1.0 wt%). The surface and structure properties of the composites were determined by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The thermal properties of the composites were studied by thermal conductivity (TC) and thermogravimetric analyzer (TGA). The latent heat and thermal cycling stability were evaluated by differential scanning calorimetry (DSC). |