| 초록 |
The current work demonstrates the preparation of in-situ polymerized polyurea microcapsules for reversible colour change and energy storage applications. For the fabrication of microcapsules, polyurea was used as a shell material and butyl stearate contained photochromic dye was used as a core material. The surface morphology, melt crystallization, thermal cycling durability, thermal stability and mechanical properties of the fabricated microcapsules were systematically investigated with field emission scanning electron microscope (FE-SEM), different scanning calorimetry (DSC), thermogravimetric (TG) and dynamic mechanical analysis (DMA). The results showed that the microcapsules synthesized with different lipophilic amines, had varied morphologies and particle size distribution. Finally, the reversible photochromic microcapsules also presented prominent light-to-thermal conversion properties. Furthermore, the temperature of the reversible photochromic microcapsules was observed. |
