Do, Taegu Ko, Young Gun Chun, Youngsang Choi, Ung Su 2024-01-20T05:34:18Z 2024-01-20T05:34:18Z 2021-09-05 2015-11 2168-0485 https://pubs.kist.re.kr/handle/201004/124797 To enhance the efficiency of heat transfer fluids, encapsulated phase change materials (PCMs) have been researched as the media for storing and release of a latent heat. The efficiency of thermal energy transportation and the durability of the PCM capsules are quite dependent on the physicochemical and mechanical properties of their shell. Herein, we have prepared the poly(2-hydroxyethyl methacrylate) (pHEMA) encapsulated paraffin-wax sphere as the PCM capsule with high encapsulation ratio, encapsulation efficiency, and thermal storage capability of 97.67, 97.33, and 99.65%, respectively. A hydrous PCM capsule exhibits improved thermal conductivity from ca. 0.26 to 0.47 W/(m.K) at 25 degrees C in comparison with a dry PCM capsule, and good durability in the melting-freezing cycle test. Our study demonstrates that the encapsulation of phase change material with the hydrous-flexible polymer shell is an effective strategy to enhance the thermal conductivity and durability of PCM capsules. English American Chemical Society Encapsulation of Phase Change Material with Water-Absorbable Shell for Thermal Energy Storage Article 10.1021/acssuschemeng.5b00807 1 ACS Sustainable Chemistry & Engineering, v.3, no.11, pp.2874 - 2881 ACS Sustainable Chemistry & Engineering 3 11 2874 2881 N scie scopus 000364358500032 2-s2.0-84946221570 Chemistry, Multidisciplinary Green & Sustainable Science & Technology Engineering, Chemical Chemistry Science & Technology - Other Topics Engineering Article MICROENCAPSULATED N-OCTADECANE CHANGE MATERIALS PCMS MICROCAPSULES HEAT FABRICATION MOISTURE POLYMER TECHNOLOGIES PERFORMANCE STABILITY Phase change material Encapsulation Thermal energy storage Water-absorbable shell Pickering emulsion