| 초록 |
Microcapsulation of phase change materials (PCMs) have been studied extensively because PCMs can absorb, store and release thermal energy as their physical state changes. Several polymers such as polystyrene, polyurea, nylon, melamine-formaldehyde (M-F) resin, etc., have been tested as the shell material. Among the shell materials, M-F resin has been applied frequently via in situ polymerization because the resin is known to have good stability against degradation or hydrolysis under high humidity and high temperature conditions. In this study, in situ polymerization of reactive monomer in the core droplet was tried to be incorporated in the M-F microcapsule in order to decrease the porosity of the shell and thereby increase the thermal and mechanical stability of the M-F microcapsule. Thermal stability, mechanical stability, and encapsulation efficiency of the obtained microcapsules were investigated. |
