【摘要】 本文讨论了多孔超细粒子制备中的关键因素──干燥的影响。超临界流体和低温冷冻干燥，是两种有效消除表面张力的方法，能够保证超细粒子的多孔结构不被破坏。对这两种制备过程及影响因素进行了讨论。更多还原

【Abstract】 t is important for porous ultrafine particle to be dried in the preparation, the supercritical fluid and the frozen drying are the two methods to eliminate the surface tension, thesketch of the porous utrafine has been kept. The process and influence factors of two methods have been studied.更多还原