Facile synthesis of resorcinol-melamine-formaldehyde microcapsules containing hexadecane for thermal energy storage. (1st December 2021)

• Record Type: Journal Article
• Authors: Erzin, Fatma; Konuklu, Yeliz
• Is Part Of: Journal of energy storage. Volume 44(2021)Part A
• Publication Date: 2021-12-01
• Subjects: Microencapsulation -- Thermal energy storage -- Phase change material -- Hexadecane; Energy storage -- Periodicals; Energy storage -- Research -- Periodicals; 621.3126
• DOI: 10.1016/j.est.2021.103285
• Languages: English
• ISSNs: 2352-152X

Abstract

Highlights: Resorcinol-melamine-formaldehyde microcapsules containing hexadecane were prepared. Influence of the resorcinol amount on thermal properties of microcapsules reported. The color of hexadecane/RMF capsules turns into reddish-brown depending on the amount of resorcinol. The prepared colored capsules offer good thermal properties for thermal energy storage applications. Abstract: In this study, it is aimed to synthesize and characterize microencapsulated phase-change material (PCM) which can be used in thermal energy storage applications with thermoregulating properties. Within this study, hexadecane was used as core material. Microcapsules of PCMs were synthesized using both melamine-formaldehyde (MF) resin and resorcinol-melamine-formaldehyde (RMF) resin. To produce microcapsules with high thermal resistance and good energy storage capacity; 3 different amounts of resorcinol (1, 5 g, 2 g, and 2, 5 g) were added during the process. The color of hexadecane/RMF capsules turns into reddish-brown color depending on the amount of added resorcinol. The thermal, morphological, and chemical properties of the composites were analyzed by differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy, respectively. It can be revealed from the characterization results that leakage free colored hexadecane microcapsules were synthesized successfully and they offer good thermal properties and mechanical stability for thermal energy storage applications.