Core/shell structured PCM nanocapsules obtained by resin fortified emulsion process

Kyung Hyun Baek, Jun Young Lee, Jung Hyun Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Phase change material (PCM, octadecane) nanocapsules were successfully prepared by resin fortified emulsion (RFE) polymerization using the alkali soluble resin (ASR) of poly(ethylene-co-acrylic acid) (EAA) and poly(styrene-co-acrylic acid) (SAA). Stable PCM nanocapsules were obtained by resin fortified emulsion polymerization, which could be attributed to the prevention of Ostwald ripening due to PCM being hydrophobic. Analysis of online FTIR measurements throughout the reaction confirmed that the nanocapsules contained octadecane as a PCM. TEM imaging of the PCM nanocapsules showed spherical and core/shell morphology. The characteristics of PCM nanocapsules can be controlled by process parameters. As a result, the particle size and particle size distribution (i.e., polydispersity index (Dw/Dn)) of the PCM nanocapsules were created by adjusting manufacturing conditions. The PCM nanocapsules exhibited thermal energy storage (∼49.8 J/g) and release (∼47.9 J/g) behavior.

Original languageEnglish
Pages (from-to)1059-1065
Number of pages7
JournalJournal of Dispersion Science and Technology
Volume28
Issue number7
DOIs
Publication statusPublished - 2007 Sep 1

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics

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