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题名: Microencapsulation of n-hexadecane as a phase change material in polyurea
作者: Zou, GL;  Lan, XZ;  Tan, ZC;  Sun, LX;  Zhang, T
关键词: phase change material ;  microcapsule ;  interfacial polycondensation ;  n-hexadecane ;  thermal energy storage ;  thermal analysis
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 2004
DOI: 10.3866/PKU.WHXB20040119
卷: 20, 期:1, 页:90-93
收录类别: SCI
文章类型: Article
项目归属: 1504,1501
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: For thermal energy storage application, polyurea microcapsules about 2.5 mum in diameter containing phase change material were prepared using interfacial polycondensation method. In the system droplets in microns are first formed by emulsifying an organic phase consisting of a core material ( n-hexadecane) and an oil-soluble reactive monomer, toluene-2, 4-diisocyanate (TDI), in an aqueous phase. By adding water-soluble reactive monomer, diamine, monomers TDI and diamine react with each other at the interface of micelles to become a shell. Ethylenediamine (EDA), 1, 6-hexane diamine (HDA) and their mixture were employed as water-soluble reactive monomers. The effects of diamine type on chemical structure and thermal properties of the microcapsules were investigated by FT-IR and thermal analysis respectively. The infrared spectra indicate that polyurea microcapsules have been successfully synthesized; all the TG thermographs show microcapsules containing n-hexadecane can sustain high temperature about 300 degreesC without broken and the DSC measurements display that all samples possess a moderate heat of phase transition; thermal cyclic tests show that the encapsulated paraffin kept its energy storage capacity even after 50 cycles of operation. The results obtained from experiments show that the encapsulated n-hexadecane possesses a good potential as a thermal energy storage material.
关键词[WOS]: THERMAL-ENERGY STORAGE ;  SYSTEM
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000188394000019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81949
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Zou, GL,Lan, XZ,Tan, ZC,et al. Microencapsulation of n-hexadecane as a phase change material in polyurea[J]. ACTA PHYSICO-CHIMICA SINICA,2004,20(1):90-93.
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