正辛酸-肉豆蔻酸低温相变材料的制备和循环性能

被引：27

作者：

李玉洋

章学来

徐笑锋

MUNYALOJotham Muthoka

陈跃

陈启杨

机构：

[1] 上海海事大学蓄冷技术研究所

来源：

化工进展 | 2018年 / 37卷 / 02期

关键词：

二元混合物; 相变; 热力学性质; 稳定性;

D O I：

暂无

中图分类号：

TB34 [功能材料];

学科分类号：

080906 [电磁信息功能材料与结构];

摘要：

研制了一种用于相变温度在2～8℃的医药冷藏运输系统的二元有机复合相变材料,该材料由正辛酸与肉豆蔻酸按比例混合而成。首先通过理论计算预测二元混合物的共晶点,确定它的低共熔混合物的比例、相变温度以及潜热值,然后围绕共晶点比例配制了6种不同比例的混合物。使用步冷曲线法测得正辛酸与肉豆蔻酸的低共熔点温度为6.2℃,过冷度为0.5℃,其质量比为87∶13。经过差示扫描量热仪(DSC)测得复合相变材料的相变温度为7.13℃,相变潜热为146.1J/g,热导率为0.2832W/(m·K)。对正辛酸-肉豆蔻酸复合相变材料进行40次、80次的循环充放冷实验,发现其相变温度和潜热值均未发生明显变化。实验结果表明,该材料在蓄冷系统尤其是医药冷藏运输系统中有着很大的应用潜力。

引用

页码：689 / 693

页数：5

共 16 条

[1]

Effect of carbon nanotubes on the thermal behavior of palmitic–stearic acid eutectic mixtures as phase change materials for energy storage.[J].Nan Zhang;Yanping Yuan;Yaguang Yuan;Xiaoling Cao;Xiaojiao Yang.Solar Energy.2014,

[2]

Lauric–palmitic–stearic acid/expanded perlite composite as form-stable phase change material: Preparation and thermal properties.[J].Nan Zhang;Yanping Yuan;Yaguang Yuan;Tianyu Li;Xiaoling Cao.Energy & Buildings.2014,

[3]

A novel PCM of lauric–myristic–stearic acid/expanded graphite composite for thermal energy storage.[J].Cheng Liu;Yanping Yuan;Nan Zhang;Xiaoling Cao;Xiaojiao Yang.Materials Letters.2014,

[4]

Preparation and thermal characterization of capric–myristic–palmitic acid/expanded graphite composite as phase change material for energy storage.[J].Yaguang Yuan;Yanping Yuan;Nan Zhang;Yanxia Du;Xiaoling Cao.Materials Letters.2014,

[5]

Fatty acids as phase change materials: A review.[J].Yanping Yuan;Nan Zhang;Wenquan Tao;Xiaoling Cao;Yaling He.Renewable and Sustainable Energy Reviews.2014,

[6]

Preparation and characterization of lauric–myristic–palmitic acid ternary eutectic mixtures/expanded graphite composite phase change material for thermal energy storage.[J].Nan Zhang;Yanping Yuan;Xi Wang;Xiaoling Cao;Xiaojiao Yang;Shuchun Hu.Chemical Engineering Journal.2013,

[7]

Preparation of PCM microcapsules by using oil absorbable polymer particles.[J].Yoshinari Taguchi;Hiroshi Yokoyama;Hideo Kado;Masato Tanaka.Colloids and Surfaces A: Physicochemical and Engineering Aspects.2006, 1

[8]

有机相变材料促进HCFC-141b水合物生成实验 [J].