高能球磨法制备氧化锆-硬脂酸系相变储能材料

Research on ZrO_2-stearci Acid Phase Change Energy Storage Materials Synthesized by High Energy Milling

采用可适用于工业生产的球磨法制备氧化锆-硬脂酸系相变储能材料。并提出热容因子(HCF)的概念和方法,应用热容因子法,集中对比了硬脂酸的原料含量为23.08%时,不同工艺对材料的储热性能的影响。结果表明,氨水的加入量对样品的热容变化有着很大的影响,但是在不同的分散剂环境下,对热容的影响趋势并不相同。另外,将粉体样品压制为块体样品,样品的热容会依据不同的粉体制备工艺而不同程度的减小。

ZrO2-stearic acid phase change energy storage materials was prepared by the method of high energy milling, which is widely used in industry production. In this work, the concept of Heat Capacity Factor （HCF） was put forward and used to analyze the materials＇ properties. The heat storage property of materials made by different technical process were studled, when the content of stearic acid in the starting materials is 23.08%. It was found that the heat capacity of the materials changed greatly when the ammonia water was added into the reaction system, and the influence of the different dispersants to the heat capacity is also greatly in diverse tendency. The heat capacity of the block sample made by the powders commonly will decrease according to different technical process.