GA复合相变储能体系的设计制备与性能研究

Study on the Preparation and Performance of Composite Phase Change Energy Storage System of Graphene Aerogel

论文采用一锅法简单高效的制备了石墨烯气凝胶复合相变材料。石墨烯气凝胶这种三维网络结构不仅能作为支撑载体解决相变材料的易渗漏性等问题,还能作为导热体为相变材料传热提供通道。与纯固-液相变材料相比,石墨烯气凝胶复合相变材料相变焓值略微降低,但是导热效率和光-热转换效率提高很多,且材料在90℃恒温60 min后,没有发生液体的渗漏现象。这一结果为高导热率、抗渗漏及高光-热转换效率一体化的复合相变材料的实现提供了新的思路和理论依据。

The composite phase change material of graphene aerogel was successfully prepared in this paper by a one-pot method.The three-dimensional network structure not only serves as a support carrier to solve the leakage of phase change materials,but also provides thermal conduction channels for heat transfer of phase change materials.Compared with pure phase change materials,the enthalpy of composite phase change material of graphene aerogel slightly reduced,but the thermal conductivity and light-to-heat conversion efficiency increased much.After the material was kept at a constant temperature of 90℃for 60 min,no liquid leakage occurred.The results provide new ideas and theoretical basis for the experiments of composite phase change materials with high thermal conductivity,leakage resistance and high light-to-heat conversion efficiency.