Preparation and characterization of a series of diol di-stearates as phase change heat storage materials

被引：33

作者：

Li, Wei-Dong

Ding, En-Yong ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Cellulose & Lignocellulos Chem, Guangzhou Inst Chem, Guangzhou 510650, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 21期

关键词：

di-stearates; characterization methods; crystal structure; thermal properties;

D O I：

10.1016/j.matlet.2007.01.110

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of solid-liquid phase change materials, diol di-stearates, were prepared via esterification of stearyl chloride with the respective diol (1,2-ethanediol, 1,4-butanediol, 1,6-hexanediol, 1,8-octanediol and 1, 10-decanediol) using pyridine as acid absorbent, and were then characterized by FT-IR, WAXD, POM, DSC and TGA measurements. All of the resulting diol di-stearates were apt to crystallize due to structural symmetry and flexibility of long alkyl groups. The DSC results indicated that the melting point of the prepared diol di-stearates varied from 38.5 degrees C to 56.4 degrees C, and phase change enthalpy lies in the range 134 kJ/kg-189 kJ/kg. (c) 2007 Elsevier B. V. All rights reserved.

引用

页码：4325 / 4328

页数：4