癸酸-十六醇/膨胀石墨复合相变储能材料的制备与研究  

Study of Capric Acid and Hexadecanol/Expanded Graphite Composite as Phase Change Material for Thermal Energy Storage

作　　者：吴其胜[1] 仇影[2] 黎水平[1] 诸华军[1] 

机构地区：[1]盐城工学院材料工程学院,江苏盐城224051 [2]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《建筑材料学报》2014年第1期84-88,共5页Journal of Building Materials

基　　金：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)

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93.87 J/g;与CA-H相比,复合相变储能材料的传热速率有所增加.Eutectic mixture of binary organic composite of capric acid（CA） and hexadecanol（H） was syn- thesized 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 mate- rial（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 Key words： eutectic mixture o H are measured to be 22.4℃ and 93.87 J/g by DSC analysis.

关 键 词：二元有机低共熔物 膨胀石墨 相变材料 

分 类 号：TB332[一般工业技术—材料科学与工程]