The lauric acid-expanded graphite (LA/EG) composite phase change materials was prepared by using adsorption properties of porous graphite with lauric acid as phase change material
porous expanded graphite(EG) as the skeleton carrier; and through the experiment of the basic properties of shape stabilized phase change material
surface morphology
durability were studied. The results showed that lauric acid was effectively encapsulated within the pores of the expanded graphite; phase change temperature and latent heat of LA/EG was 45.45℃and 125.30 J·g-1 respectively when mLA:mEG=95:5. LA/EG loss rate was very small after 100 times of hot and cold cycle phase transitions
which indicated that LA/EG has good stability in practice.