Microencapsulation of n-octadecane phase change material with calcium carbonate shell for enhancement of thermal conductivity and serving durability: Synthesis, microstructure, and performance evaluation

Synthesis, characterization and thermal properties of paraffin microcapsules modified with nano-Al 2 O 3

“…So it is believable that the phase change enthalpies of the microcapsule samples are strongly dependent on the loading of phase changeable paraffin inside the microcapsules. Encapsulation ratio (R) and encapsulation efficiency (E) are two important parameters used to characterize the phase change performance of microencapsulated PCMs and can be calculated by DSC results through the following equations [16,17]:…”

Facile synthesis of PEG based shape-stabilized phase change materials and their photo-thermal energy conversion

“…Meanwhile, their shortcomings were obvious such as leakage during their phase change, and low thermal conductivity, which limited its application [9]. Recently, different methods including physical (blending [6], adsorbing, impregnation [5], encapsulation [10]) and chemical methods (grafting copolymerization and the solegel method) were proposed to improve the thermal conductivity and simultaneously prevent the leakage [11].…”

Micro-Encapsulated Phase Change Materials: A Review of Encapsulation, Safety and Thermal Characteristics

“…However, up to a 23% loss of PCM was reported in 30 days of exposure in a temperature range of 160 • C to 250 • C [58]. Wolcott blended paraffin with polymers and investigated their behavior for thermal energy storage.…”

“…In recent developments, paraffins are encapsulated in newer shell materials such as (i) polystyrene [29], calcium carbonate [58] and urea formaldehyde [59]; (ii) in composites such as silicon dioxide/polystyrene-organic/inorganic hybrid [60] and polymethyl methacrylate/silicon nitride-organic/inorganic hybrid [61]. Paraffins are blended with different PCMs such as ester [62], carbon Nano-fibers and carbon Nano-tubes [63], physicochemical stabilizers [64], polymer shell combined with aluminum honeycomb [65], cement mortar [66] and melamine and epoxy resin [67] to attain suitable thermal and structural properties.…”