Phase change property of sodium acetate trihydrate modified with n-Eicosane and expanded graphite

作者：Wang Chongyun; Wang Wei; Feng Lili; Li Guoling; Tian Wenhuai^*; Li Xingguo

来源：Acta Materiae Compositae Sinica, 2014, 31(3): 824-829.

• Confinement effects
• Cycling performance
• Expanded graphite
• N-eicosane
• Phase Change
• Phase change property
• Sodium acetate trihydrate
• Structure and thermal properties

In order to overcome the drawback of phase separation in the process of phase change and improve the thermal cycling performances of sodium acetate trihydrate (CH3COONa·3H2O), new phase change materials composed of CH3COONa·3H2O, n-Eicosane and expanded graphite (EG) were prepared by a simple blending method. The structure and thermal properties of as-prepared samples were characterized by XRD, SEM and DSC techniques. The result indicates that the thermal cycling performance of n-Eisosane-EG/CH3COONa·3H2O is improved by the coated effect of n-Eicosane and confinement effect of EG.

• 出版日期2014
• 单位北京大学; 北京科技大学