重(β,β,β-三硝基乙基-N-硝基)乙二胺单质炸药的微负压重结晶研究  

Recrystal of Bis (β,β,β-trinitroethyl-N-nitro) ethylenediamine with negative pressure

作　　者：张海斌[1] 叶芸[1] 黄小鹓 Zhang Haibin;Ye Yun;Huang Xiaoyuan(Insitute of Chemical Materils,CAEP,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《云南化工》2017年第10期54-57,共4页Yunnan Chemical Technology

摘　　要：采用微负压重结晶法制备了重(β,β,β-三硝基乙基-N-硝基)乙二胺单质炸药,研究了溶液温度、晶床形状和溶液表面空气密度等参数对炸药重结晶粒度分布的影响,并对不同条件下制备的晶体撞击感度、起爆性能进行了表征分析。结果表明,当水浴温度为60℃,溶液表面空气流速为0.75m/s,在改进后的晶床上可以得到较规则的针形晶体,重结晶粒度在5μm左右,经超细球磨后起爆感度明显提高,晶体撞击感度明显降低。Bis(β,β,β-trinitroethyl-N-nitro)ethylenediamine(BTENED)was prepared by re-crystal at negative pressure.The effects of solution temperature,crystal-bed shape and atmosphere density on the range of crystal size were studied.The impact sensitivity and detonate property were investigated.The results showed that the5μm crystal with needle shape could be obtained at60℃with a0.75m/s flow rate on the improved crystal-bed.The impact sensitivity decreased and the detonate property increased after ball mill.

关 键 词：微负压 单质炸药 重结晶 

分 类 号：O643[理学—物理化学]