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


Vol. 58,  No. 4, pp. 192-198, Aug.  2021
10.12772/TSE.2021.58.192


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  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 μm 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.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)