ABSTRACT Building energy conservation is a critical component of the global sustainable energy transition. Floor radiant heating systems are widely valued for their thermal comfort and efficiency. In this study, microencapsulated phase‐change materials (MicroPCMs) are incorporated into wood–plastic composites (WPCs) to develop panels capable of enhanced heat storage and improved thermal conduction. MicroPCMs with the polymethyl methacrylate (PMMA) shells and n ‐octadecane cores are synthesized via emulsion polymerization. The microstructure, thermal behavior, and mechanical performance of the composites are characterized via scanning electron microscopy, Fourier‐transform infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analysis. MicroPCMs with a 1:1 core–shell mass ratio show a melting enthalpy of 118.31 J g −1 , a crystallization enthalpy of 121.31 J g −1 , and an initial thermal decomposition temperature of 150°C. When 15 wt% MicroPCMs are added to WPCs, the utilization rate of MicroPCMs reaches 65.47%, which shows latent heat storage capability. The thermal conductivity of the composite increases by more than 70%, which enhances heat transfer performance. The mechanical strength decreases slightly but still meets the basic needs for flooring. The MicroPCM/WPC composite, with its thermal storage and heat transfer properties, provides an innovative solution for achieving low‐energy, high‐comfort floor heating systems with strong practical potential.
Li et al. (Sat,) studied this question.
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