High explosives (HEs) that contain a large amount of potential energy are used in various fields, including the military, mining, and construction industries. The detonation of these high-energy materials should be initiated by a desired and expected external energy; however, unintentional initiation occurs owing to internal voids inside the high explosives, referred to as hotspots. To address this issue, in this study, one of the representative HEs, 1,3,5-trinitro-1,3,5-triazinane (RDX), was confined in nanoporous metal-organic frameworks (MOFs) with high surface areas and high pore volumes to decrease the hotspots and provide a rigid shield. The RDX-encapsulated mesoporous MOF (pore volume of 1.4 cm³/g) showed lower impact sensitivity (23%) and friction sensitivity (125%) compared to those of the non-encapsulated RDX, owing to the decrease in hotspots due to the nano-sizing of the HE and protection from external impact provided by the rigid MOF structure.

包含大量势能的高爆炸药（HE）被用于军事，采矿和建筑业等各个领域。这些高能材料的爆炸应该由期望的和预期的外部能量引发。但是，由于高爆炸药内部的内部空隙（称为热点）而导致意外启动。为了解决这个问题，在这项研究中，代表性的高聚物之一1,3,5-三硝基-1,3,5-三嗪烷（RDX）被限制在具有高表面积和高表面积的纳米多孔金属有机骨架（MOF）中。高孔隙体积可减少热点并提供坚固的防护层。RDX包封的中孔MOF（孔径为1.4 cm ³/ g）与未封装的RDX相比，具有较低的冲击敏感性（23％）和摩擦敏感性（125％），这是由于HE的纳米级尺寸导致热点减少以及保护免受来自外部的撞击所致刚性MOF结构。