基于正十四烷微胶囊和微封装技术的相变材料技术研究  

Study on Phase Change Materials based on n-Tetrad Cane and Microencapsulation Technology

作　　者：王瑞杰[1] 金兆国[1] 丁汀[2] 周清[1] 詹万初[1] 

机构地区：[1]航天特种材料及工艺技术研究所,北京100074 [2]北京空间飞行器总体设计部,北京100086

出　　处：《载人航天》2015年第3期249-256,共8页Manned Spaceflight

摘　　要：针对航天器对相变强化传热技术的需求,以及对热控系统的技术要求,开展了基于正十四烷为代表的低温相变材料微胶囊包覆技术和相变温控装置研制,通过表面封装和导热增强技术处理,提高了相变材料在热控领域应用的稳定性和可靠性;依据航天器热控系统运行条件,分别通过了鉴定级的热真空、辐照、热循环等环境试验,及随机振动、正弦振动和冲击等力学试验考核,为实现航天器轻质、高效、高精度的热控形式提供新的技术方法。To meet the needs of the phase change heat transfer enhancement technology and the technical requirements of the thermal control system of spacecrafts,the microencapsulated phase change technology and phase change temperature control device were studied in low temperature phase change materials represented by n-Tetrad cane.The thermal stability and reliability of phase change materials applied in thermal control field was improved via surface sealing process and thermal conduction enhancement treatment.According to the on-orbit test conditions of the thermal control system in manned spacecraft,verification was made through environmental tests including thermal-vacuum,irradiation,and thermal cycling tests.Mechanical tests,including random vibration,sinusoidal vibration and impact experiments were also conducted.The study may provide a new technical route to realize light-weight,high efficiency and high precision thermal control system for manned spacecrafts.

关 键 词：正十四烷相变材料 微胶囊化技术 温控装置 力学试验 热真空试验 

分 类 号：V7[航空宇航科学技术]