Synthesis and performances of novel solid-solid phase change materials with hexahydroxy compounds for thermal energy storage

被引：117

作者：

Chen, Changzhong ^{[1
]}

Liu, Wenmin ^{[1
]}

Wang, Hongwei ^{[1
]}

Peng, Kelin ^{[1
]}

机构：

[1] Nanyang Normal Univ, Sch Chem & Pharmaceut Engn, Nanyang 473061, Peoples R China

来源：

APPLIED ENERGY | 2015年 / 152卷

基金：

中国国家自然科学基金;

关键词：

Phase change properties; Polyethylene glycol; Solid-solid phase change; Synthesis; Thermal energy storage; CHANGE MATERIALS PCMS; HEAT-STORAGE; CROSS-LINKING; TRANSITION; COPOLYMERS; FIBERS; KINDS;

D O I：

10.1016/j.apenergy.2014.12.004

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Three kinds of new polymeric SSPCMs with different crosslinking structures were synthesized and characterized for thermal energy storage. In the SSPCMs, three hexahydroxy compounds (sorbitol, dipentaerythritol and inositol) were individually employed as the molecular skeleton and polyethylene glycol (PEG) was used as the phase change functional chain. The molecular structure, crystalline properties, phase change behaviors, thermal reliability and stability of the synthesized SSPCMs were investigated by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermogravimetry (TG), respectively. The results show that the prepared SSPCMs possess high thermal energy storage density and an applicable temperature range of 30-70 degrees C, and the maximum phase change enthalpy in the heating and cooling process for the SSPCMs is 107.5 kJ/kg and 102.9 kJ/kg, respectively. The prepared SSPCMs have good reusability, excellent thermal reliability and stability from the heating-cooling thermal cycle test and TG curves. The resultant SSPCMs could be potentially applied in the areas of thermal energy storage and temperature-control. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：198 / 206

页数：9

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