In the present study, sol–gel synthesized silica shell is selected to encapsulate Na₂SO₄·10H₂O as the phase change agent with a 30 °C phase change temperature. In the next step, the produced nanocomposites are dispersed in poly (methyl methacrylate) (PMMA) as a transparent polymer to produce films that can be considered as an alternative for transparent barriers like glass windows. Thermal analysis indicates that the synthesized nanocomposites show an efficient thermal energy storage capacity, which is also preserved through several thermal cycles. Based on the results, the as-prepared phase change material with a 40% encapsulation ratio and 96.29 J/g and 83.03 heating and cooling enthalpies and 32 °C and 10 °C phase change temperatures for heating and cooling, respectively and also no phase separation can be considered as a promising material for inclusion in transparent polymeric matrices as an alternative for glass windows.

在本研究中，选择溶胶-凝胶合成的二氧化硅壳包裹Na ₂ SO ₄ ·10H ₂O作为相变剂，具有30°C的相变温度。在下一步中，将生成的纳米复合材料作为透明聚合物分散在聚甲基丙烯酸甲酯（PMMA）中，以生成可被视为玻璃窗等透明屏障替代品的薄膜。热分析表明，合成的纳米复合材料显示出有效的热能存储容量，该热能存储容量也通过多个热循环得以保留。根据结果​​，所制备的相变材料具有40％的包封率，96.29 J / g和83.03的加热和冷却焓以及分别用于加热和冷却的32°C和10°C的相变温度，并且没有相分离可以被认为是一种有希望的材料，可以包含在透明聚合物基体中，作为玻璃窗的替代品。