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<p>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&#xa0;W/m.K). The microencapsulated PCM facilitates efficient heat storage, offering a latent heat of 49.3&#xa0;J/g and minimal leakage (&lt; 3%). Thermal regulation tests demonstrated that the TP_PCM composite maintained internal temperatures 2&#xa0;°C lower than the ambient environment and delayed peak heat transfer by 7,600&#xa0;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.</p>

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Composite panels utilizing TetraPak and microencapsulated phase change material for enhanced building thermal management

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月16日

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  • Safna Nishad,
  • Premysl Fajkus,
  • Miroslav Mrlík,
  • Daniel Sanetrnik,
  • Igor Krupa

摘要

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 TP_PCM 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.