The nano-encapsulated phase change materials (NEPCMs) with polystyrene as shell and n-octadecane as core were synthesized by ultrasonic technique and miniemulsion in-situ polymerization.

• 采用超声波工艺及细乳液原位聚合方法,研制了以聚苯乙烯为囊壁、正十八烷为囊芯的纳米胶囊相变材料;系统探讨了聚合反应各因素对乳胶粒子的形态、胶囊材料热性能的影响。