| 摘要: |
| 利用癸酸（CA）和十六醇（H）在超声波作用下混溶制得二元有机低共熔物(CA H)，然后以其为相变材料，以膨胀石墨（EG）为载体，采用真空吸附法制备了相变材料质量分数不同（50%，60%，80%，90%）的二元有机低共熔物/膨胀石墨复合相变储能材料，并采用XRD，FTIR，SEM，DSC以及融化凝固过程分析对其结构与热性能进行了研究.结果表明：膨胀石墨对CA H的物理吸附作用达到80%时，复合相变储能材料具有热稳定性，其相变温度为22.4℃，相变焓为93.87J/g；与CA H相比，复合相变储能材料的传热速率有所增加. |
| 关键词: 二元有机低共熔物 膨胀石墨 相变材料 |
| DOI：103969/j.issn1007 9629201401015 |
| 分类号: |
| 基金项目:住房和城乡建设部科学技术项目（2008 K1 7）；江苏省新型环保重点实验室开放课题基金资助项目（AE201111） |
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| Study of Capric Acid and Hexadecanol/Expanded Graphite Composite asPhase Change Material for Thermal Energy Storage |
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WU Qisheng1, QIU Ying2, LI Shuiping1, ZHU Huajun1
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1.School of Materials Engineering, Yancheng Institute of Technology, Yancheng 224051, China;2.School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
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| Abstract: |
| Eutectic mixture of binary organic composite of capric acid（CA） and hexadecanol（H） was synthesized by the ultrasonic method. The binary organic eutectic mixture（CA H）/expanded graphite（EG） composite with various mass fraction of CA H（50%, 60%, 80%, 90%）as a composite phase change material（PCM） was prepared by vacuum absorption technique using CA H as phase change material and EG as carrier. The thermal properties and structure of the composite material were characterized with the help of XRD, FTIR, SEM and DSC. The result shows that the melting temperatures and the latent heats of CA H/EG PCM with 80% of CA H are measured to be 22.4℃ and 93.87J/g by DSC analysis. |
| Key words: eutectic mixture of binary organic expanded graphite（EG） phase change materil（PCM） |
