节能建筑用魔羯座-肉豆酱酸共晶混合物的性能及相变动力学研究

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science-medziagotyra Pub Date : 2023-11-07 DOI:10.5755/j02.ms.34780

Lin LI, Yu WANG, Xiaoming YU, Yanxia JI, Mei-Ling ZHUANG

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引用次数: 0

摘要

本研究首先选择癸酸和豆瓣酸，采用复配法制备了癸酸-豆瓣酸共晶混合物。利用差示扫描量热法、傅里叶变换红外光谱法和热重法分析了癸酸-杨梅酸共晶混合物的热性能、结构稳定性和失重情况。最后，采用Kissinger和Ozawa相变动力学方法计算了癸酸-豆瓣酱酸共晶混合物固液转变过程的活化能和反应级数。结果表明，在实际应用中，癸酸-豆瓣酱酸共晶混合物具有良好的热循环稳定性和稳定的储能性能。采用Kissinger和Ozawa的相变动力学方法计算了癸酸-豆瓣酸共晶混合物的活化能，分别为345.6 KJ/mol和333.3 KJ/mol，表明两种相变动力学方法都具有较好的准确性。

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Performance and Phase Change Kinetic Investigations on Capric-Myristic Acid Eutectic Mixtures for Energy-Saving Construction

In the present study, capric acid and myrisic acid were first selected to prepare a capric acid-myrisic acid eutectic mixture using a compounding method. Then, the thermal properties, structural stability and weight loss of capric acid-myrisic acid eutectic mixtures were analyzed using differential scanning calorimetry, Fourier transform infrared and thermogravimetry. Finally, the activation energy and reaction order of the capric acid-myrisic acid eutectic mixture during solid-liquid transformation were calculated using the phase change kinetic methods of Kissinger and Ozawa. The results indicate that capric acid-myrisic acid eutectic mixtures have good thermal cycle stability and stable energy storage in practical applications. The activation energies of capric acid-myrisic acid eutectic mixtures were calculated using the phase change kinetic methods of Kissinger and Ozawa, with values of 345.6 KJ/mol and 333.3 KJ/mol, respectively, indicating that both phase change kinetic methods have good accuracy.

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来源期刊

Materials Science-medziagotyra 工程技术-材料科学：综合

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： It covers the fields of materials science concerning with the traditional engineering materials as well as advanced materials and technologies aiming at the implementation and industry applications. The variety of materials under consideration, contributes to the cooperation of scientists working in applied physics, chemistry, materials science and different fields of engineering.