The salt/ceramic phase change materials (PCMs) have a good thermal storage performance and high application temperature. In this paper, we studied the effect of glass as additive on the mechanical properties, thermal storage, and morphology of the Na₂CO₃-K₂CO₃ eutectic salt/MgO composite PCMs. The results show that glass can effectively improve the compressive strength of MgO matrix material. When the mass ratio of glass and MgO is 7:3, the compressive strength of the composite body can be up to 104.3 MPa. When the mass ratio of Na₂CO₃-K₂CO₃ eutectic salt, MgO, and glass is 55:25:20, the composite PCM body has a good stable form, and its total heat storage is 788 J/g, which increased by 6.7% compared with the total heat storage of composite PCMs without glass in the range of 150°C~750°C. When the mass ratio of Na₂CO₃-K₂CO₃ eutectic salt, MgO, and glass is 55:15:30, the composite PCM body cannot maintain stable form.

盐/陶瓷相变材料（PCM）具有良好的储热性能和较高的应用温度。在本文中，我们研究了玻璃作为添加剂对Na ₂ CO ₃ -K ₂ CO ₃共晶盐/ MgO复合PCM的机械性能，储热和形貌的影响。结果表明，玻璃可以有效提高MgO基材料的抗压强度。当玻璃与MgO的质量比为7：3时，复合体的抗压强度可以达到104.3MPa。当Na ₂ CO ₃ -K ₂ CO ₃的质量比共晶盐，MgO和玻璃的比例为55:25:20，复合PCM体具有良好的稳定形态，其总储热为788 J / g，与不添加复合PCM的总储热相比，提高了6.7％。玻璃的温度范围为150°C〜750°C。当Na ₂ CO ₃ -K ₂ CO ₃共晶盐，MgO和玻璃的质量比为55:15:30时，复合PCM体不能保持稳定的形态。