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碳纳米管对相变储能材料的影响

发表时间:2015-12-31  浏览量:1647  下载量:656
全部作者: 倪卓,曾茵茵,戎俊霓,邝子聪,廖俊权
作者单位: 深圳大学化学与环境工程学院
摘 要: 在五水硫代硫酸钠和十四醇中分别加入多壁碳纳米管制备复合储能材料。采用傅里叶红外光谱仪表征材料的化学成分,扫描电子显微镜观察材料的表面形态,差示扫描量热仪(differential scanning calorimeter,DSC)测量材料的相变潜热和相变温度。研究结果表明:碳纳米管与这些相变材料主要以物理方式复合,均匀地分散于储能材料中。碳纳米管对相变材料的相变温度和相变潜热均产生影响,碳纳米管含量越高,复合材料的熔程越窄,相变潜热增大,对温度变化的反应程度升高。这种方法制备的复合材料表现出良好的储能稳定性,可用于储能材料的工程设计。
关 键 词: 复合材料;碳纳米管;相变材料;储热
Title: Effect of carbon nanotubes on phase change materials
Author: NI Zhuo, ZENG Yinyin, RONG Junni, KUANG Zicong, LIAO Junquan
Organization: College of Chemistry and Environmental Engineering, Shenzhen University
Abstract: Carbon nanotubes were added to both sodium thiosulfate pentahydrate and myristyl alcohol to prepare composite phase-change energy storage materials. Chemical constituents and surface morphology of these materials were analyzed by Fourier transform infrared spectroscopy and scanning electron microscope respectively while latent heat and phase change temperature were tested through differential scanning calorimeter (DSC). The results showed that the carbon nanotubes and the phase change materials were well mixed in a physical way and dispersed in the composite materials evenly. The addition of carbon nanotubes had an effect on the phase change temperature and heat-storage for those materials. The higher the content of carbon nanotubes, the narrower the melting process of the composites, the higher of the latent heat and the sensitivity of the composites. The composites prepared in this study has a good storage stability, which can be used for designing energy storage materials.
Key words: composite materials; carbon nanotubes; phase change materials; heat-storage
发表期数: 2015年12月第24期
引用格式: 倪卓,曾茵茵,戎俊霓,等. 碳纳米管对相变储能材料的影响[J]. 中国科技论文在线精品论文,2015,8(24):2613-2620.
 
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