The shape-stabilized phase change materials composed of polyethylene glycol and various mesoporous matrices (AC, SBA-15 and MCM-41)

被引：213
作者：
Feng, Lili [1 ,2 ]
Zhao, Wei [1 ]
Zheng, Jie [1 ]
Frisco, Sarah [1 ,3 ]
Song, Ping [1 ]
Li, Xingguo [1 ]
机构：
[1] Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
[2] Beijing Univ Civil Engn & Architecture, Key Lab Urban Stormwater Syst & Water Environm, Minist Educ, Beijing 100044, Peoples R China
[3] Rochester Inst Technol, Dept Chem, Rochester, NY 14623 USA
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2011年 / 95卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Phase change composites; Polyethylene glycol; Mesoporous stabilizer; LATENT-HEAT STORAGE; SILICA MOLECULAR-SIEVES; TRANSITION CHARACTERISTICS; PERFORMANCE; ADSORPTION; CATALYSIS; COPOLYMER;
D O I：
10.1016/j.solmat.2011.08.020
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：
In order to obtain stable phase change composites with a high PEG load and enthalpy, a series of polyethylene glycol (PEG) based phase change composites with different mesoporous materials (active carbon and silica molecular sieves) were prepared by a simple approach. Various characterization techniques were carried out to investigate the properties of the composites. It was observed that both the porous characteristics and surface properties of the mesoporous stabilizers combined affected the crystallinity and phase change behavior of PEG. Among the various composites, PEG/AC PCMs with 80 wt% of PEG had the largest latent heat, a relatively low melting point, the least supercooling and a higher heat storage efficiency. This study will provide insight into the fabrication of stabilized polymer based high performance phase change systems for heat storage application. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：3550 / 3556
页数：7
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