Phase change material (PCM) -integrated wall panels now offer a viable solution for maintaining indoor thermal comfort while minimizing energy consumption and maximizing energy savings. Instead of using pure PCMs, PCM composites are utilized to enhance shape stability and thermal conductivity. This study presents a sustainable PCM composite fabricated from recycled Tetra Pak (TP) packaging and microencapsulated PCMs for efficient thermal management. Encapsulating the PCM helps prevent leakage during melting, while the LDPE component in the recycled TP provides structural stability. Additionally, aluminum flakes enhance thermal conductivity (0. 419 W/m. K). The microencapsulated PCM facilitates efficient heat storage, offering a latent heat of 49. 3 J/g and minimal leakage (< 3%). Thermal regulation tests demonstrated that the TPPCM composite maintained internal temperatures 2 °C lower than the ambient environment and delayed peak heat transfer by 7, 600 s. The eco-friendly composition of the composite makes it a promising candidate for building thermal management and other energy storage applications. Beyond addressing TP waste recycling, this research establishes a framework for developing high-performance value-added products as thermal management materials using recycled polymers.
Nishad et al. (Sun,) studied this question.
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