Synthesis and Characterization of TiO₂-Coated n-Dodecanol@MFB Microparticles
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Keywords:
n-dodecanol, microcapsule, PCMs, thermal energy storage, TiO2Abstract
Current research on phase change materials for thermal energy storage focuses on developing
hybrid functionalities to enhance their applications. These hybrid properties typically include solar heat
harvesting, flame retardancy, and antibacterial properties. Furthermore, cost-effective particle production
remains a key goal for wider availability.
In this study, n-dodecanol, an organic phase change material widely used in cooling and anti-icing systems,
was incorporated into a melamine-formaldehyde resin with boric acid to obtain low-cost microcapsules
with hybrid properties, particularly flame retardancy. Subsequent deposition of TiO2 onto the particle
surface conferred photothermal heat generation and antibacterial properties.
The microencapsulated phase change materials were characterized using DSC to determine their
physicochemical and thermal energy storage properties. The results show that the microcapsules produced
retained more than 50% of the core's latent heat capacity and exhibited high thermal stability over repeated
heating-cooling cycles. The particles were also found to be homogeneous, spherical, and 50-115 um in
diameter.
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