关键词:

相变蓄热材料, 微胶囊, 微反应器, 溶剂挥发, 过程解耦

Abstract:

The phase change material (PCM) micro-capsules with polysulfone shell and n-hexadecane core were prepared in this work.In order to control the properties of PCM micro-capsules, such as the size and size distribution, the preparation process was decoupled into two separate stages: firstly, the monodispersed O/W droplets were generated by a micro-reactor; secondly, the droplets were solidified in a bath by solvent evaporation approach.The effects of continuous phase flow rate, disperse phase flow rate, and the micro-channel size on the droplet formation process in the micro-reactor were studied comprehensively.The PCM micro-capsules were characterized by SEM and DSC.The results showed that the size of micro-capsules was uniform, and the latent heat was greater than 75 J·g^-1.

Key words:

相变蓄热材料, 微胶囊, 微反应器, 溶剂挥发, 过程解耦