Preparation and thermal properties of expanded graphite/paraffin/organic montmorillonite composite phase change material

被引：0
|
作者：
Hongtao Kao
Min Li
Xuewen Lv
Jinmiao Tan
机构：
[1] Nanjing University of Technology,School of Materials Science & Engineering
[2] Southeast University,Jiangsu Key Laboratories of Civil Engineering Materials; International Institute for Urban System Engineering
来源：
Journal of Thermal Analysis and Calorimetry | 2012年 / 107卷
关键词：
Expanded graphite; Paraffin; Organic montmorillonite; Phase change material; Thermal property;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Expanded graphite (EG)/paraffin/organic montmorillonite (OMMT) composite phase change material (PCM) was prepared by using melt intercalation method. The microstructure of EG/paraffin/OMMT is observed by scanning electron microscope (SEM). The thermal properties are investigated by differential scanning calorimetry (DSC). The mass loss of EG/paraffin/OMMT after 50 heating cycles was measured for investigating the influence of EG and OMMT on the thermal properties of paraffin. The results show that EG and OMMT have the ability of adsorption and shape-stability. The melting point EG/paraffin/OMMT is decreased slightly with an addition of paraffin and the latent heat of EG/paraffin/OMMT is determined by the mass ratio of paraffin. The heat transfer efficiency of EG/paraffin/OMMT is strengthened and the heating time is decreased to one-sixth of that of paraffin by addition of EG and OMMT. The thermal stability of EG/paraffin/OMMT is improved by addition of OMMT.
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页码：299 / 303
页数：4
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