Abstract
Inappropriate application of thermal energy can have adverse effects on human health, such as heat stroke and hypothermia. Phase change materials, as an emerging thermal management material, are capable of storing and controlling thermal energy in a way that enables a large amount of heat migration over an almost constant temperature range. Therefore, the utilization of phase change material for energy storage and the implementation of thermal management strategies for a variety of devices can effectively regulate the heat flow during energy conversion and usage, however, low energy utilization and limited application fields have hindered its further development. If the heat storage technology of phase change material can be directly applied to the human body, the change could be a straightforward improvement in the energy efficiency. This paper comprehensively reviews the research progress of phase change material-based wearable devices for thermal management, particularly highlighting the regulation mechanism of phase change material in personal thermal management and the novel functionalities brought by the embedding of phase change material in wearable devices. For instance, we can choose different types of phase change materials for precise thermal control of specific locations on the human body, or take advantage of the new features brought by composite phase change materials and apply them through thermal stimulation in the fields of military industry, infrared camouflage, and electromagnetic interference shielding. Apart from discussing these mechanisms and application functions, we also explore the future development of phase change material-based wearable devices and give specific recommendations in four aspects: integrated comfort enhancement, individual wearable design, temperature control precision optimization and application sustainability, aiming to make substantial contributions to the future application of personal thermal regulation and thermal storage of phase change materials.
Published Version
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