Abstract

The integration of microencapsulated phase change materials (MPCMs) significantly improved the energy storage capacity of wood-based hybrid composites (WBHCs). MPCM incorporated into the surface coating enabled the composites to store thermal energy from solar radiation and ambient heat, offering an energy-efficient and sustainable solution for furniture applications. In this study, the structural, thermal, surface, and mechanical properties of MPCM/WBHC were comprehensively investigated. The microstructural features and chemical functionalities of the samples were characterized through scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Thermal performance and stability were subsequently assessed by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), thermal conductivity evaluation, and solar-based thermoregulation experiments. The MPCM exhibited onset melting and freezing temperatures of 25.72 °C and 21.73 °C, respectively, whereas these values ranged between 22.45 °C and 22.90 °C in MPCM/WBHC, indicating effective thermal integration. Thermoregulation results clearly demonstrated that MPCM substantially improved the thermal energy storage capacity of the composites. Overall, the findings highlight the strong potential of MPCM/WBHC as latent heat thermal energy storage material for energy-saving furniture and interior applications.

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