Preparation and characterization of magnetic phase-change microcapsules

查看全文 作　　者：HUANG [1]Yong;XUAN [1]YiMin;LI [1]Qiang;CHE [2]JianFei

机构地区：[1]School of Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, China;[2]School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China

出　　处：《Chinese Science Bulletin》索引2009年第54卷第2期,共6页

基　　金：Supported by National Natural Science Foundation of China (Grant No. 50436020) 摘　　要：Magnetic microcapsules containing paraffin cores within urea-formaldehyde shells were fabricated utilizing in situ polymerization, with iron nano-particles as magnetic particles. The thermal properties, surface morphologies, magnetic properties and iron nano-particles content of the magnetic phasechange microcapsules were investigated by scanning electronic microscopy (SEM), differential scan- ning calorimetry (DSC), vibrating sample magnetometry (VSM) and inductively coupled plasma quantometry (ICP). The influence of iron nano-particles on morphologies was also considered. The results indicate that the melting point of magnetic phase-change microcapsules is almost identical to that of paraffin. The magnetism parameters such as specific saturation magnetization and residual magnetization of magnetic phase-change microcapsules increase with the increase of iron nano-particles content. 关键词：介面材料导热硅胶散热高性能导热

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Preparation and characterization of magnetic phase-change microcapsules

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