Facile synthesis and performances of PEG/SiO2 composite form-stable phase change materials

被引：82
|
作者：
Tang, Bingtao [1 ]
Cui, Junshuo [1 ]
Wang, Yunming [1 ]
Jia, Chao [1 ]
Zhang, Shufen [1 ]
机构：
[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
来源：
SOLAR ENERGY | 2013年 / 97卷
关键词：
Ultrasound assisted sol-gel process; Phase change material; Thermal energy storage; THERMAL-ENERGY STORAGE; DIOXIDE COMPOSITES; GRAPHITE COMPOSITE; BLENDS;
D O I：
10.1016/j.solener.2013.08.021
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：
A facile route based on ultrasound-assisted sol gel method has been developed and applied to rapid synthesis of polyethylene glycol (PEG)/silicon dioxide (SiO2) composite form-stable phase change materials (PCMs) without co-solvent and surfactant. This method was carried out under ultrasonic power of 300 W using HCl and Na2CO3 as the acidic and alkaline catalyst, respectively. The temperature is below 50 degrees C. The PCMs were characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), Differential Scanning Calorimetry (DSC) and thermogravimetric analysis apparatus (TGA) measurements. The PCMs display low density, high volume energy density, excellent form-stable effect, good phase-change and temperature control performance, which are very important for the actual application of PCMs in energy-saving construction materials. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：484 / 492
页数：9
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