以相变石蜡为芯材,廉价的聚脲和聚氨酯为壁材,采用界面聚合法制备了单层和双层壁材微胶囊相变材料,并用差示扫描量热仪(DSC)和TG分析仪分别对所制备的单层壁材微胶囊和双层壁材微胶囊进行了测试.结果表明,与同条件下制备的单层壁材微胶囊相比,双层壁材微胶囊在合成过程中反应充分、产率较高,在室温环境下相变温度为19.02℃,且保持了较高的相变潜热(79.9J/g),适合于建筑用相变材料.
Using phase-change paraffin as the core material and the cheaper polyurea and polyurethane as shell materials, the single-shell and the double-shell microencapsulated phase change materials for heat energy storage applications are synthesized by interfacial polymerization. The synthesized microcapsules are characterized by DSC and TG. The results show that double-wall material microcapsule is sufficient yields during the reaction in the synthesis compared with single-wall material prepared microcapsule in the same conditions, phase transition temperature is 19. 02C at the room temperature, and to maintain the higher phase transition latent heat 79. 9J/g, it suitable for phase change materials used in construction.
参考文献
| [1] | 崔绍波,卢忠远,刘德春,王文忠,肖相齐,宋丽贤.界面聚合技术及其应用研究进展[J].化工进展,2006(01):47-50. |
| [2] | 兰孝征,杨常光,谭志诚,孙立贤,徐芬.界面聚合法制备正二十烷微胶囊化相变储热材料[J].物理化学学报,2007(04):581-584. |
| [3] | 袁文辉,戴险峰,李莉,刘都树.双壳层石蜡微胶囊的制备及性能研究[J].高校化学工程学报,2008(05):844-849. |
| [4] | 魏靖明,林松,邓阳全,单连海,张志斌.聚氨酯微胶囊的合成、结构及形态研究[J].功能材料,2008(11):1876-1878. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%