| 초록 |
Poly(ethylene glycol) (PEG) has been a promising candidate of phase change material(PCM) for thermal energy storage and temperature control in the field of construction and transportation, because it shows relatively large heat of fusion, congruent melting behaviour, and wide melting point ranging from ca. 0℃ to 70℃ depending on its molecular weight. In addition, it is intrinsically biocompatible due to its chemical structure. In this study, PCM capsules with PEG core and polymer shell were prepared. For the microencapsulation of PEG, is selected so-called inverse emulsion polymerization method. The parameters influencing the thermal properties of PCM PEG core were investigated as functions of monomers’ polarity, amount of crosslinkers and surfactant, and the ratio of PCM to monomer. The detailed thermal properties are analysed with aids of DSC, SEM, and other apparatus. |
