材料科学
石墨
复合数
热能储存
复合材料
热导率
热稳定性
相变材料
相(物质)
聚氨酯
热的
化学工程
化学
有机化学
气象学
工程类
物理
生物
生态学
作者
Lili Jiang,Longmao Zhao,Guangyuan Chen,Meixia Li,Ruijia Zhang
出处
期刊:Energy Reports
[Elsevier]
日期:2022-11-01
卷期号:8: 13939-13947
被引量:8
标识
DOI:10.1016/j.egyr.2022.10.121
摘要
In this study, octadecylamine/graphite foam composite phase change materials (ODA/GF CPCMs) were prepared by vacuum impregnation; octadecylamine (ODA) was used as the phase change materials (PCMs), and graphite foam (GF) was used as the support material. Polyurethane (PU) foam obtained after hydrolysis in 40 wt% NaOH solution at 80 °C for 30 min was the template for the GF; therefore, the prepared GF has many interpenetrating pore structures, providing many adsorption sites for PCMs. For the ODA/GF-3 CPCMs with 15 wt% graphite addition, the loading of ODA is as high as 92.3%, the thermal stability is excellent, the melting temperature is 52.1 °C, and the latent heat of fusion is 218. 1 J/g, which is 1.1 times that of pure ODA. The thermal conductivity of ODA/GF-3 CPCMs is 0.725 W/m•K, which is 2.2 times that of pure ODA. These results indicate that ODA/GF CPCMs have good thermal properties, and their competitiveness in the field of energy storage is greatly improved due to their excellent performance.
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