In this study, the size effects of graphene oxide (GO) sheets on the phase change behaviors of crosslinking polyurethane system have been investigated. The experimental results show that phase change performance of the system is connected closely to the heterogeneous nucleation, physical confinements from GO and interactions in the system, which are inseparable from the specific surface area and the contents of oxygen functional groups depending on the size. This work has a theoretical significance to design thermal energy storage materials with desired properties.

中文翻译：

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原位还原的氧化烯/聚氨酯基固-固相变复合材料的石墨烯尺寸依赖性相变行为

在这项研究中，已研究了氧化石墨烯（GO）片材的尺寸对交联聚氨酯体系相变行为的影响。实验结果表明，系统的相变性能与非均相成核，GO的物理限制以及系统中的相互作用密切相关，这与比表面积和取决于尺寸的氧官能团的含量密不可分。这项工作对设计具有所需性能的储热材料具有理论意义。