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http://dx.doi.org/10.12772/TSE.2021.58.192

Emulsion Formation of Paraffinic Phase Change Materials by a Sonochemical Process and Preparation of Microcapsules Using Melamine-Formaldehyde Resin as Wall Material  

Han, Chang-Hoon (Department of Material and Design Engineering, Kumoh National Institute of Technology)
Chae, Haneul (Department of Material and Design Engineering, Kumoh National Institute of Technology)
Min, Byung Gil (Department of Material and Design Engineering, Kumoh National Institute of Technology)
Publication Information
Textile Science and Engineering / v.58, no.4, 2021 , pp. 192-198 More about this Journal
Abstract
An O/W emulsion of paraffinic phase change material (PCM) was prepared through a sonochemical process for microencapsulation using melamine-formaldehyde resin as the wall material. It was found that the octadecane micelles selected as PCM were successfully formed in water with a diameter of 1-3 ㎛ through ultrasonication for 5 min. Anionic surfactants were found to be more effective than non-ionic surfactants in the formation of emulsions consisting of PCM micelles through a sonochemical process. Spherical PCM microcapsules were obtained from the PCM emulsion and melamine-formaldehyde prepolymer, which was used as the wall material. The diameter of the PCM microcapsules increased with increasing microencapsulation time and the prepolymer to PCM weight ratio.
Keywords
phase change material; sonochemical; microcapsules; melamine-formaldehyde; ultrasonication; emulsion;
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