| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-콜로이드·계면화학 |
| 제목 |
Bulk Nanoencapsulation of Phase Change Materials (PCMs) via Spontaneous Spreading of a UV-curable Prepolymer |
| 초록 |
Phase change materials (PCMs) have recently gained significant attention for effective latent heat thermal energy storage. So far, diverse methods for encapsulation of PCMs have been introduced, including interfacial polymerization or sol-gel reaction, which were sometimes achieved via microfluidic droplet generation. Herein, we demonstrate a facile way of producing sub-micron PCM nanocapsules in bulk, composed of n-docosane (C22H46; core) and crosslinked polyethylene glycol (PEG; shell). The encapsulation is achieved through spontaneous spreading of liquid PEG diacrylate (phase 1) on melted n-docosane nanodroplets (phase 2) dispersed in bulk aqueous media (phase 3), which is thermodynamically driven by the relation between the surface energies of the phase 1, 2, and 3. The as-produced PCM nanocapsules displayed high durability in repeated heating-cooling cycles, and showed promising thermal performances. |
| 저자 |
박현수, 곽채수, 이준수, 임세형, 양지원, 김지은, 김진효, 유승영, 나현빈, 이주형
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| 소속 |
명지대 |
| 키워드 |
Nanoencapsulation; Spreading; Phase change materials; UV-curable prepolymer; Thermal energy storage; Colloidal processing
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| E-Mail |
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