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	The influence of interactions between polyethylene glycol and graphene oxide in shape-stabilized PCMs on their phase change behaviors
	Wang, Chong Yun ; Wang, Wei ; Li, Guo Ling ; Li, Wei ; Tian, Wen Huai ; Li, Xing Guo
	2013
英文摘要	Two types of shape-stabilized phase change materials(PCMs) based on polyethylene glycol(PEG) and graphene oxide(GO) were prepared by two different methods, including a simple blending process and esterification reaction. The interactions between PEG and GO for the blending product (PEG/GO PCMs) is physical and weak, while for the grafting product (PEG-g-GO) is chemical and strong. In the PEG-g-GO composites, almost all PEG segments were restricted due to the strong chemical interactions and therefore no endothermic peak was observed in the DSC curve. As the interactions between PEG and GO in the PEG/GO composites is weak and physical, the phase change enthalpy of the PEG/GO composites is as much as 163 J/g when the PEG content is 90 wt%. The result indicates that the shape-stabilized PCMs with weak physical interactions are more proper for thermal energy storage than that with strong chemical interactions. ? (2013) Trans Tech Publications, Switzerland.; EI; 0
语种	英语
DOI标识	10.4028/www.scientific.net/AMR.800.459
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/411662]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, Chong Yun,Wang, Wei,Li, Guo Ling,et al. The influence of interactions between polyethylene glycol and graphene oxide in shape-stabilized PCMs on their phase change behaviors. 2013-01-01.

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