冷却结晶制备毫米级球形黑索今  

Cooling Crystallization Method for Preparation of Millimeter-scale Spheroidized RDX

作　　者：张茂林 贾宏选 毋文莉 刘波 陆明[2] 

机构地区：[1]山西北化关铝化工有限公司,山西永济044501 [2]南京理工大学,江苏南京210094

出　　处：《兵工学报》2015年第11期2093-2098,共6页Acta Armamentarii

摘　　要：以环戊酮为溶剂,采用冷却结晶的方式制备出毫米级球形黑索今(RDX)晶体,并对溶液浓度、晶种的添加、结晶温度、降温速率、搅拌速率等工艺参数进行分析,对晶体密度、长短轴比、堆积密度以及机械感度进行了测试。结果表明:所获得的毫米级球形RDX晶体表面光滑、结构密实,晶体密度达到1.813 g/cm3,长短轴比≤1.21,堆积密度1.29 g/cm^3;机械感度相比于普通RDX显著降低,摩擦感度从82%降低至62%,撞击感度从80%降低至52%.The millimeter-scales pheroidized RDX is prepared by cooling crystallization using cyclopentanone as a solvent. The effects of process parameters,such as solution concentration,addition of seed,crystallization temperature,cooling rate,and stirring rate,are investigated. The crystal density,axial ratio,bulk density,and mechanical sensitivity are tested. The results show that the millimeter-grade spheroidized RDX has smooth crystal surface and compact structure. The crystal density is 1. 813 g / cm3,the axial ratio is less than 1. 21,and the bulk density is 1. 26 g / cm^3. Its mechanical sensitivity is obviously lower than that of ordinary RDX,the friction sensitivity is decreased from 82% to 62%,and the impact sensitivity is decreased from 80% to 52%.

关 键 词：兵器科学与技术 黑索今 球形 冷却结晶 毫米级 

分 类 号：TQ564.3[化学工程—炸药化工]