Preparation and Properties of Fatty Acid/SiO2 Composite Phase Change Materials

被引：0

作者：

Li L. ^{[1
]}

Li D. ^{[1
,2
]}

Zhang S. ^{[1
]}

Wang L. ^{[1
]}

机构：

[1] College of Materials Science and Engineering, Nanjing Tech University, Nanjing

[2] Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing

来源：

Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2017年 / 31卷 / 08期

关键词：

Composite phase change material; Eutectic fatty acid; Inorganic non-metallic materials; Silicon dioxide; Sol-gel method;

D O I：

10.11901/1005.3093.2016.730

中图分类号：

学科分类号：

摘要：

With capric acid (CA), lauric acid (LA), palmitic acid (PA), and myristic acid (MA) as raw materials, four kinds of ternary eutectic mixtures were prepared in consideration of the theoretical thermal property of the formed mixtures with the mass ratio of the three selected raw materials. Then LA-MA-PA/SiO2 composite phase change materials were prepared by sol-gel method and their structure and performance were characterized. The results show that LA-MA-PA was uniformly filled into the three-dimensional network of SiO2 and there was no chemical reaction between LA-MA-PA and SiO2. LA-MA-PA/SiO2 presented as smooth spherical particles with 3 μm in diameter, which exhibit smooth surface and good dispersibility. While the LA-MA-PA/SiO2 exhibited high-performance in energy storage with little leakage even after 100 thermal cycling. The phase change temperature and latent heat of the LA-MA-PA/SiO2 were determined to be 29.6℃ and 91.1 J/g. © All right reserved.

引用

页码：591 / 596

页数：5

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