Porous Cyclotrimethylenetrinitramine with Reduced Sensitivity Prepared by a Solvation-Desolvation Method
Porous Cyclotrimethylenetrinitramine with Reduced Sensitivity Prepared by a Solvation-Desolvation Method
复制标题
溶剂化-去溶剂化法制备低灵敏度多孔环三亚甲基三硝胺
DOI：
10.1021/acs.cgd.0c00597
复制
发表时间：
2020-08-05
影响因子：
3.8
通讯作者：
Huang, Shiliang
中科院分区：
文献类型：
--
作者：
Yan, Mi;Liu, Yu;Huang, Shiliang
采用晶体工程方法制备了一种多孔高爆药环三亚甲基三硝胺（RDX）。用TMS、CAM和HMPT（TMS =四亚甲基砜，CAM = ε-己内酯单体，HMPT =六甲基磷酰胺）使粗制RDX结晶，分别形成三种溶剂化物，RDX·TMS、RDX·CAM和RDX·FIMPT。采用真空热解脱溶剂和反溶剂萃取的方法，成功制备了含有微米级和纳米级孔的多孔RDX。与原始RDX相比，多孔RDX具有显著降低的冲击、摩擦和静电火花感度。提出了多孔黑索今感度降低的机理。
A crystal engineering strategy has been adopted to prepare a porous high explosive, cyclotrimethylenetrinitramine (RDX). Raw RDX was crystallized with TMS, CAM, and HMPT (TMS = tetramethylene sulfone, CAM = epsilon-caprolactone monomer, and HMPT = hexamethylphosphoramide), forming three solvates, RDX.TMS, RDX.CAM, and RDX.FIMPT, respectively. After desolvation by vacuum pyrolysis and antisolvent extraction, porous RDX containing micro- and nanoscale pores was successfully prepared. The porous RDX exhibits remarkably reduced impact, friction, and electrostatic spark sensitivity in comparison to raw RDX. A mechanism of the reduced sensitivity of porous RDX has also been proposed.