Preparation and Performance of n-Dodecane Microencapsulated Phase Change Cold Storage Materials

Cold chain transportation is currently a hot research topic. Since the traditional refrigeration methods lead to consumption of large amounts energy, search for new energy storage materials major trend. In present contribution, n-dodecane/PMMA microencapsulated phase change were prepared by suspension polymerization ice-temperature cold and their preparation parameters explored using encapsulation ratio as optimization indicator. The results show that n-dodecane-containing microcapsules have maximum 93.2% when core-to-wall 3:1, 5% emulsifier, 30% crosslinker, 2000 rpm emulsification speed. transition temperature enthalpy are −2°C 195.9 kJ/kg, respectively. with optimized process good microscopic morphology, high efficiency, uniform particle size thermal stability, making them ideal transportation.