材料科学
纳米纤维
聚乙二醇
相变材料
碳纳米纤维
差示扫描量热法
碳纳米管
复合材料
纤维素
热能储存
扫描电子显微镜
PEG比率
化学工程
热的
气象学
经济
财务
工程类
物理
热力学
生物
生态学
作者
Yu Liu,Hongchen Liu,Haisong Qi
标识
DOI:10.1016/j.jcis.2022.08.132
摘要
Novel phase change materials composed of polyethylene glycol (PEG), cellulose nanofibers (CNFs) and carbon nanotubes (CNTs) were developed by an efficient and environment friendly strategy. The CNFs were modified and cross-linked by chitosan to form three-dimensional network structure, which provides strong support for the resulting CNF/CNT/PEG composites. The structure and properties of CNF/CNT/PEG composites were characterized using scanning electron microscopy, spectrums, and differential scanning calorimeter. They exhibit high latent heat (158.3 J/g), low heat loss (0.75%) and excellent photo-thermal conversion (energy storage efficiency 85.6%), electro-thermal conversion (energy storage efficiency 92.3%) properties. Due to their excellent performances, CNF/CNT/PEG composites have great potential to be used as thermal management materials.
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