Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7166365 | Energy Conversion and Management | 2013 | 6 Pages |
Abstract
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 4Â 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.
Related Topics
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Authors
Hairong Li, Ming Jiang, Qi Li, Denian Li, Zongyi Chen, Waping Hu, Jing Huang, Xizhe Xu, Lijie Dong, Haian Xie, Chuanxi Xiong,