Polyethylene glycol supported by phosphorylated polyvinyl alcohol/graphene aerogel as a high thermal stability phase change material

被引：109

作者：

Shen, Jia ^{[1
]}

Zhang, Ping ^{[1
]}

Song, Lixian ^{[1
]}

Li, Jiapeng ^{[1
]}

Ji, Bingqiang ^{[1
]}

Li, Jiajun ^{[1
]}

Chen, Lin ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Natl Engn Technol Ctr Insulat Mat, Mianyang 621010, Sichuan, Peoples R China

来源：

COMPOSITES PART B-ENGINEERING | 2019年 / 179卷

基金：

中国国家自然科学基金;

关键词：

Polyethylene glycol; Phase change materials; Double-network structure; Thermal properties; REDUCED GRAPHENE OXIDE; ENERGY-STORAGE; BIOINSPIRED STRATEGY; COMPOSITE; CONDUCTIVITY; PERFORMANCE; FABRICATION; NANOMATERIALS; ENHANCEMENT; DEGRADATION;

D O I：

10.1016/j.compositesb.2019.107545

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polyethylene glycol (PEG) as a phase change material (PCM) is limited in practical applications due to the three major drawbacks of low thermal conductivity, poor thermal stability, and easy leakage. In this study, a new shape-stabilized PPVA/GA/PEG PCM based on Phosphorylated polyvinyl alcohol (PPVA) and graphene aerogels (GA) as a "double-network" support material was obtained using a one-step method, and the three major obstacles of PEG as a PCM were well resolved in this composite material. 15%-PPVA/GA/PEG composite PCMs still exhibit high energy storage capacity while having high thermal stability and high shape-stabilized property. 15%-PPVA/GA/PEG composite PCMs (0.610 W m(-1) K-1), with only 1.60 wt% GA, showed an enhanced thermal conductivity than that of PEG (0.493 W m(-1) K-1), and it still exhibited an acceptable latent heat of fusion of 119.6 J g(-1). Furthermore, the peak heat release rate of 15%-PPVA/GA/PEG composite PCMs decreased by 19.2% compared with PEG. The above experimental results indicate that the prepared PPVA/GA/PEG composite PCMs have application prospects in thermal energy storage field.

引用

页数：10

共 47 条

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