Phase-Change-Material-Impregnated Wood for Potential Energy-Saving Building Materials

PCMs (phase change materials) are ideal for thermal management solutions in buildings. This is because they release and store energy during melting freezing. When this material freezes, it releases a lot of the form latent heat fusion or crystallization energy. Conversely, when melts, absorbs same amount from its surroundings as changes solid to liquid state. In study, Oriental spruce (Picea orientalis L.) sapwood was impregnated with three different commercial PCMs. The biological properties hygroscopic performance PCM-impregnated wood were studied. morphology characterized through use scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), differential calorimetry (DSC). demonstrated low terms storing releasing phase processes, confirmed by DSC. results show that possess excellent stability at working temperatures, most satisfying sample PCM1W, enthalpy 40.34 J/g temperature 21.49 °C. study revealed resistant wood-destroying fungi. After 96 h water absorption test, samples decreased 28%, tangential swelling 75%. addition, has been proven on laboratory scale PCM used highly attacks. However, large-scale pilot studies still needed.