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Microencapsulation of n-eicosane as energy storage material synthesized by interfacial polymerization
Lan Xiao-Zheng; Yang Chang-Guang; Tan Zhi-Cheng; Sun Li-Xian; Xu Fen
关键词Phase Change Material N-eicosane Microcapsule Interfacial Polymerization
刊名ACTA PHYSICO-CHIMICA SINICA
2007-04-01
DOI10.3866/PKU.WHXB20070425
23期:4页:581-584
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]PHASE-CHANGE MATERIAL ; POLYUREA ; SYSTEM
英文摘要For heat energy storage application, polyurea microcapsules containing phase change material, n-eicosane, were synthesized by interfacial polymerization method with toluene -2,4-diisocyanate (TDI) and ethylene diamine (EDA) as monomers in an emulsion system. Poly (ethylene glycol) octyl-phenyl ether (OP), a nonionic surfactant, was the emulsifier for the system. The experiments indicated that TDI was reacted with EDA in a mass ratio of 1.9 to 1. The sizes of microcapsules were analyzed with TEM and laser particle analyzer, which showed the empty microcapsules were about 0.2 mu m and those containing n-eicosane were 2-6 mu m. FTIR spectra proved the formation of wall material, polyurea, from the two monomers, TDI and EDA. Encapsulation efficiency of n-eicosane was about 75%. Microcapsules of n-eicosane melted at a temperature close to that of n-eicosane, while its stored heat energy varied with the amount of core material n-eicosane. Thermogravimetric analysis revealed that the core material n-eicosane, micro-n-eicosane, and wall material polyurea could withstand temperatures up to 130 degrees C, 170 degrees C, and 270 degrees C, respectively.
语种英语
WOS记录号WOS:000245883400025
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140480
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
2.Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong Provin, Peoples R China
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GB/T 7714
Lan Xiao-Zheng,Yang Chang-Guang,Tan Zhi-Cheng,et al. Microencapsulation of n-eicosane as energy storage material synthesized by interfacial polymerization[J]. ACTA PHYSICO-CHIMICA SINICA,2007,23(4):581-584.
APA Lan Xiao-Zheng,Yang Chang-Guang,Tan Zhi-Cheng,Sun Li-Xian,&Xu Fen.(2007).Microencapsulation of n-eicosane as energy storage material synthesized by interfacial polymerization.ACTA PHYSICO-CHIMICA SINICA,23(4),581-584.
MLA Lan Xiao-Zheng,et al."Microencapsulation of n-eicosane as energy storage material synthesized by interfacial polymerization".ACTA PHYSICO-CHIMICA SINICA 23.4(2007):581-584.
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