In this study, the potential application of activated carbon produced from oil palm kernel shell (OPKS) as the supporting material of paraffin to develop a form-stable composite PCM was investigated. The produced activated carbon managed to retain up to 31% of paraffin by mass. The prepared composite PCM was then characterized using scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and thermal cyclic test. The experimental results showed that the melting and solidifying temperatures of paraffin-OPKS-activated carbon composite were 29.2 °C and 31.6 °C with a corresponding latent heat of 57.3 J/g and −57.2 J/g. Moreover, paraffin-OPKS-activated carbon composite also demonstrated good stability against thermal degradation, excellent chemical stability, stable phase change temperature with considerable latent heat and great thermal reliability. In addition, concrete incorporated with paraffin-OPKS-activated carbon composite could achieve a compressive strength up to 25 MPa at the age of 28 days. The laboratory scale thermoregulation performance test showed that concrete panels incorporated with paraffin-OPKS-activated carbon composite have a higher thermal lag and lower peak temperature during phase transition of composite PCM.

在这项研究中，研究了由油棕仁壳（OPKS）产生的活性炭作为石蜡的支撑材料在开发形状稳定的复合材料PCM中的潜在应用。所生产的活性炭设法保留了质量达31％的石蜡。然后使用扫描电子显微镜（SEM），热重分析（TGA），傅立叶变换红外光谱（FTIR），差示扫描量热法（DSC）和热循环测试对制备的复合PCM进行表征。实验结果表明，石蜡-OPKS活化的碳复合材料的熔融和凝固温度分别为29.2°C和31.6°C，相应的潜热分别为57.3 J / g和-57.2 J / g。此外，石蜡-OPKS活化的碳复合材料还表现出良好的抗热降解稳定性，出色的化学稳定性，稳定的相变温度，潜热和出色的热可靠性。此外，掺有石蜡-OPKS活化碳复合材料的混凝土在28天龄时可达到高达25 MPa的抗压强度。实验室规模的温度调节性能测试表明，在石蜡-OPKS活化碳复合材料中掺入的混凝土面板在复合材料PCM相变过程中具有较高的热滞后和较低的峰值温度。