Inside Material SAP or Phase Change Materials (PCM) are ideal products for thermal management solutions . This is because they store and release thermal energy during the process of melting & freezing (changing from one phase to another) . When such a material freezes , it releases large amounts of energy in the form of latent heat of fusion, or energy of crystallisation . Conversely , when the material is melted , an equal amount of energy is absorbed from the immediate environment as it changes from solid to liquid .
This property of PCMs can be used in a number of ways , such as thermal energy storage whereby heat or coolness can be stored from one process or period in time, and used at a later date or different location . PCMs are also very useful in providing thermal barriers or insulation , for example in temperature controlled transport .
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