Thermal properties and reliabilities of myristic acid-paraffin wax binary eutectic mixture as a phase change material for solar energy storage

被引：19
作者：
Fan, Zhixuan [1 ]
Zhao, Yunchao [1 ]
Liu, Xuying [1 ]
Shi, Yu [1 ]
Jiang, Dahua [1 ]
机构：
[1] Jiangxi Univ Sci & Technol, Jiangxi Prov Key Lab Environm Geotech Engn & Haza, Ganzhou 341000, Jiangxi, Peoples R China
来源：
RSC ADVANCES | 2022年 / 12卷 / 20期
关键词：
FATTY-ACIDS; COMPOSITE; CONVERSION;
D O I：
10.1039/d1ra09238c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, a myristic acid (MA)-paraffin wax (PW) binary eutectic phase change material (PCM) was prepared by a melt-solution blending method. The eutectic point of the MA-PW binary system was determined to be 62 wt% MA-38 wt% PW using a cooling curve. In addition, the phase transition properties and thermal stability of MA-PW binary eutectic PCM were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG) analysis. The melting temperature and latent heat as well as starting temperature of decomposition for MA-PW binary eutectic PCM were 41.99 degrees C, 171.43 J g(-1) and 137.86 degrees C, respectively. Besides, analysis of the chemical and crystal structures of MA, PW and MA-PW revealed no chemical reaction between MA and PW to produce a new molecular structure and no change in the crystal structure. Finally, MA-PW binary eutectic PCM still has good thermal properties and chemical stability after 500 cold-hot cycles.
引用
收藏
页码：12303 / 12309
页数：7
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