【作者】 闵洁； 寿晨燕； 朱泉； 潘建君；

【机构】 东华大学化学化工与生物工程学院； 湖州出入境检验检疫局；

【摘要】 本文以正十六烷和正十八烷为微胶囊的芯材,选用三聚氰胺、甲醛为壁材,通过原位聚合法制备了一系列性质不同的相变蓄能微胶囊,并对其进行DSC测试,分析其相变性能。研究表明:与纯的相变材料相比,不同芯壳比的单一芯材的相变微胶囊熔融和结晶温度相对恒定,但相变热随着芯材比的下降而下降。复合芯材的相变微胶囊熔融温度低于每一组分的熔融温度。而不同的相变微胶囊复配之后,仍能保持各个组分的相变性能。更多还原

【Abstract】 In this paper,hexadecane and octadecane is the core material of the microencapsulation,and melamine with formaldehyde is as the shell material.A series of MicroPCMs have been prepared by in-situ polymerization.DSC is measured to analyze the effect of the phase transition.The result showed that compared with pure phase change materials,melting and crystal temperature of the MicroPCMs with single core keeps certain,while enthalpy reduces as the decrease of core/shell ratio.Melting point of MicroPCMs with composite core is lower than that of each one.When mixed,the different MicroPCMs still keeps the individual performance of phase transition.更多还原