摘要
利用步冷曲线法测定了不同组成二元共晶系十二醇-月桂酸的相变温度,在此基础上,改进了单参数的Margules方程,引入了温度项,建立了回归该体系的热力学模型。利用实验值对模型中的参数进行了回归,回归结果表明该热力学模型是可行的,因而该模型对二元共晶系相变材料的热力学性质研究具有一定的应用价值。
The different phase change temperatures of the eutectic phase change material （PCM） dodecanollauric acid binary system with different constitations are determined using the method of cooling cure. The single parameter Margules equation is improved and the temperature is added to the parameter. The thermodynamic model of this system liquid phase line is founded. The equation parameters are regressed by the experiment value. The regressed resuits indicate that this thermodynamic model is feasible. So this thermodynamic model is valuable to the study of binary system euteetic phase change material.
基金
军械工程学院院基金资助项目(YJJXM07010)
关键词
十二醇
月桂酸
相变材料
热力学模型
dodecanol, lauric acid, phase change material （PCM）, thermodynamic model
