Aqueous preparation of polyethylene glycol/sulfonated graphene phase change composite with enhanced thermal performance

被引：64

作者：

Li, Hairong ^{[1
,2
]}

Jiang, Ming ^{[3
]}

Li, Qi ^{[1
,2
]}

Li, Denian ^{[1
,2
]}

Chen, Zongyi ^{[1
,2
]}

Hu, Waping ^{[1
,2
]}

Huang, Jing ^{[1
,2
]}

Xu, Xizhe ^{[1
,2
]}

Dong, Lijie ^{[1
,2
]}

Xie, Haian ^{[1
,2
]}

Xiong, Chuanxi ^{[1
,2
,3
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China

[3] Wuhan Text Univ, Sch Mat Sci & Engn, Wuhan 430200, Peoples R China

来源：

ENERGY CONVERSION AND MANAGEMENT | 2013年 / 75卷

基金：

中国国家自然科学基金;

关键词：

Phase change materials; Polyethylene glycol; Sulfonated graphene; Thermal performance; HEAT-STORAGE MATERIALS; ENERGY-STORAGE; CONDUCTIVITY; ADDITIVES; OXIDE; PCM;

D O I：

10.1016/j.enconman.2013.07.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A polyethylene glycol (PEG)/sulfonated graphene (SG) phase change composite with enhanced thermal performance was prepared by solution processing in aqueous medium. It is remarkable that the addition of only 4 wt.% of SG to PEG could lead to a four times higher increase in thermal conductivity and a slight decrease in the phase change enthalpy, which is attributed to the formation of efficient thermal conductive network within the PEG matrix relevant to the excellent thermal property and unique 2-dimensional morphology of graphene as well as strong interface affinity between PEG matrix and SG nanosheets. The aqueous preparation technique is expected to pioneer a new way to prepare environment friendly organic phase change materials, and the production of PEG/SG composites is potentially scalable due to the facile fabricating process. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：482 / 487

页数：6

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