The 98% pure Heneicosane(C21H44) was used as the phase change material(PCM).
采用纯度为98%的正21烷（C21H44）作为相变材料（PCM）。
As phase change material (PCM) is a new kind of material for energy storage, its thermal properties are key factors which determine the application areas and actual effect.
摘要相变材料是一种新型储能材料，其热学性质是决定相变材料应用领域和应用效果的关键因素。
The characteristics and types of phase change material (PCM) were introduced. The properties and applications of solid liquid and solid solid phase change material were discussed.
本文介绍了相变贮热材料的特点和种类，讨论了固液相变、固固相变贮热材料的性能和应用。
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