Preparation and thermal performance of novel form-stable phase change materials based on polyethylene glycol (PEG)/hollow glass microsphere composites for thermal energy storage

被引:0
作者
Yunyun Yang
Wenmin Li
Ying Ren
Xufu Cai
机构
[1] Sichuan University,College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering
来源
Polymer Bulletin | 2019年 / 76卷
关键词
Thermal energy storage; Phase change materials; Form stable; PEG;
D O I
暂无
中图分类号
学科分类号
摘要
In this article, the hollow glass microsphere (HGS)/polyethylene glycol (PEG) composites were prepared as form-stable phase change materials (FSPCMs) for thermal energy storage (TES) via direct impregnation method. In the prepared composites, the PEG functioned as phase change substance and the HGS acted as supporting materials, which will prevent the leakage of PEG in phase change process. The chemical structure, surface morphology, crystalline properties, phase change properties, thermal reliability and stability of obtained composites were extensively studied by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermal cycling test and thermogravimetric analysis. FTIR spectra showed that there was no chemical reaction between HGS and PEG. The SEM images exhibited that the special structure and large surface of HGS had the ability of preventing the leakage of the melting PEG. XRD and DSC curves demonstrated the good crystalline properties of prepared composites with latent heat reach up to 124.8 J/g. Meanwhile, the prepared composites had excellent thermal reliability and stability. The prepared composites can be used as FSPCMs and have great potential in TES.
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页码:2711 / 2724
页数:13
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