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Nano-encapsulated organic phase change material based on copolymer nanocomposites for thermal energy storage


Khadiran, Tumirah and Hussein, Mohd. Zobir and Zainal, Zulkarnain and Rusli, Rafeadah (2014) Nano-encapsulated organic phase change material based on copolymer nanocomposites for thermal energy storage. Energy, 66. pp. 881-890. ISSN 0360-5442; ESSN: 1873-6785


This study deals with fabrication, physico–chemical characterizations and thermal properties of n-octadecane nanocapsules as organic PCM (phase change materials) for TES (thermal energy storage). Nano-encapsulated organic PCM was fabricated by encapsulation of n-octadecane as a core with St (styrene) – MMA (methylmethacrylate) copolymer shell using miniemulsion in-situ polymerization method. The influence of St/MMA and n-octadecane/copolymer mass ratio on the encapsulation processes, physico–chemical and thermal properties of the resulting nanocapsules has been studied systematically. DSC (differential scanning calorimeter) analysis indicated that the n-octadecane in the nanocapsules form melts at 29.5 °C and crystallize at 24.6 °C. N-octadecane nanocapsules has an enthalpy of 107.9 and 104.9 Jg-1 for melting and crystallization, respectively. TGA (thermal gravimetric analysis) thermograms showed that the nano-encapsulated organic PCM degraded in two distinguishable steps and has a good chemical stability. The thermal cycling test of the nanocapsules was carried out for 360 heating/cooling cycles and indicates that the developed nanomaterial has good chemical stability and thermal reliability. Based on all the results obtained, it can be concluded that n-octadecane/St-MMA nanocapsules have potential for thermal energy storage for buildings and other applications.

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Additional Metadata

Item Type: Article
Divisions: Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.energy.2014.01.033
Publisher: Elsevier
Keywords: Styrene-methyl methacrylate copolymer shell; NPCM; Nano-encapsulated phase change materials; N-octadecane; Miniemulsion in-situ polymerization; TES; Thermal energy storage system
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 16 Dec 2015 06:41
Last Modified: 16 Dec 2015 06:41
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.energy.2014.01.033
URI: http://psasir.upm.edu.my/id/eprint/34624
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