Preparation and thermal properties of ethylene glycole distearate as a novel phase change material for energy storage

被引：57

作者：

Alkan, Cemil ^{[1
]}

Kaya, Kemal ^{[1
]}

Sari, Ahmet ^{[1
]}

机构：

[1] Gaziosmanpasa Univ, Dept Chem, TR-60240 Tokat, Turkey

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 6-7期

关键词：

stearic acid; esterification; ethylene glycole distearate; phase change material; thermal analysis;

D O I：

10.1016/j.matlet.2007.07.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The latent heat thermal energy storage (LHTES) capacity of phase change materials (PCMs) increases with molecular weight and secondary interactions as their efficiency depends on the energy storage capacity per unit mass during its melting and freezing. In this study, ethylene glycole distearate(EGDS) as a novel PCM having high energy storage capacity (215.80 J/g) and suitablephase change temperature for LHTES was synthesized by esterification of stearic acid with ethylene glycol. The esterification reaction was proven by Fourier Transform Infrared (FT-IR) Spectroscopy. Thermal stability of the novel PCM was investigated by thermal cycling (1000 melfing/freezing cycles). Latent heats of melting and freezing of EGDS were found 215.43 J/g-216.45 J/g by Differential Scanning Calorimetry (DSC) method, respectively after thermal cycling as melting and freezing temperatures were 65.35 and 65.83 degrees C, respectively. Thermal gravimetric analysis (TGA) was used to determine endurance of EGDS. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1122 / 1125

页数：4

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