Preparation and characterization of nano-encapsulated n-tetradecane as phase change material for thermal energy storage

被引：298

作者：

Fang, Guiyin ^{[1
]}

Li, Hui ^{[2
]}

Yang, Fan ^{[1
]}

Liu, Xu ^{[1
]}

Wu, Shuangmao ^{[1
]}

机构：

[1] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Dept Mat Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2009年 / 153卷 / 1-3期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Nanocapsules; Phase change materials; In situ polymerization; Thermal energy storage; HEAT-TRANSFER; MICROCAPSULES;

D O I：

10.1016/j.cej.2009.06.019

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nanocapsules used as phase change material (PCM) were prepared by using in situ polymerization methods. N-Tetradecane was used as the core material. Urea and formaldehyde were used for the shell polymerization. Sodium dodecyl sulfate was used as the emulsifier and resorcin was used as the system modifier. The morphology of the nanocapsules was observed by a scanning electronic microscope (SEM). The thermal properties were investigated by a differential scanning calorimeter (DSC) and a thermogravimetry analysis (TGA). The SEM analysis indicated that the nanocapsules had general size of about 100nm and the core material was well encapsulated. DSC analysis indicated that the mass content of n-tetradecane was up to 60%, which resulted in a high latent heat of fusion of 134.16 kJ/kg. TGA showed the thermal stability of the nanocapsules could be improved by the additives (NaCl) used in the polymerization. The nanocapsules could be applied for thermal energy storage and heat transfer enhancement. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：217 / 221

页数：5

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