Unsaturated polyester resin supported form-stable phase change materials with enhanced thermal conductivity for solar energy storage and conversion

被引：47
作者：
Bing, Naici [1 ,2 ]
Yang, Jie [1 ]
Gao, Huan [1 ]
Xie, Huaqing [1 ,2 ]
Yu, Wei [1 ,2 ,3 ]
机构：
[1] Shanghai Polytech Univ, Coll Engn, Sch Environm & Mat Engn, Shanghai 201209, Peoples R China
[2] Shanghai Engn Res Ctr Adv Thermal Funct Mat, Shanghai 201209, Peoples R China
[3] Shanghai Polytech Univ, Shanghai Key Lab Engn Mat Applicat & Evaluat, Shanghai 201209, Peoples R China
来源：
RENEWABLE ENERGY | 2021年 / 173卷
基金：
上海市自然科学基金; 中国国家自然科学基金;
关键词：
Form-stable phase change materials; Thermal conductivity; Solar thermal conversion and storage; Stability; Unsaturated polyester resin; COMPOSITES; PARAFFIN; ENCAPSULATION; POLYETHYLENE; ABSORPTION; STABILITY; CARBON; PCM;
D O I：
10.1016/j.renene.2021.04.033
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Solar energy absorption, conversion, transportation and storage are crucial for high-efficiency solar thermal utilization. It is positive and promising to develop novel phase change materials (PCMs) with good shape stability, excellent photo-absorption and thermal-physical properties in the practical solar thermal application. Polymer supported PCMs with good heat transfer performance show an extensive application prospect. This research introduces a straightforward and practical strategy to prepare flexible poly (ethylene glycol) (PEG) form-stable phase change materials (FSPCMs) by taking cross-linked unsaturated polyester resin as skeleton and expanded graphite (EG) as thermal conductivity additive. The results show the FSCMs have excellent stability, thermal reliability and can be kept from leaking at 80 degrees C. The efficiency of photo-thermal conversion of FSPCMs doped with 7 wt % EG is up to 93.3%. The thermal conductivity is 1150% higher than PEG. Comparing to PEG, FSPCMs doped with 7 wt % EG can save time of 67.1% and 51.4% during the heating and cooling processes, respectively. The unsaturated polyester resin as common industry materials will provide more possibility for FSPCMs with enhanced thermal conductivity in practical solar thermal application. (C) 2021 Published by Elsevier Ltd.
引用
收藏
页码：926 / 933
页数：8
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