基于相变微胶囊材料的优化与热控应用研究

PREPARATION AND APPLICATION STUDY OF MODIFIED PHASE CHANGE MICROCAPSULE IN THERMAL CONTROL FIELD

相变材料的渗透性和低导热性能限制了相变材料的热控使用。本文基于航天器热控领域需求,开展了以原位聚合法制备正十八烷相变微胶囊产品的优化技术研究,归纳总结了低温相变微胶囊材料导热增强改进的方法,展示了相变微胶囊复合材料已在航天热控领域的多方面应用,提出了相变微胶囊材料今后的研究方向。

Permeability and the lower-thermal conductivity of phase change materials(PCMs)affects the control thermal application.According to the requirement of thermal control of spacecraft,this paper introduces a series of optimization techniques about the preparation of n-octadecane microcapsules by insitu polymerization,summarizes the mehods of improving the thermal conductivity about low temperature PCMs microcapsules,demonstrates the application of PCMs microcapsules composites in the field of space thermal control,and projects the direction of PCMs microcapsules materials in the future.