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含能材料  2012 

ETPE发射药与RGD7硝胺发射药燃烧性能及热行为的对比研究

DOI: 10.3969/j.issn.1006-9941.2012.02.011

Keywords: 物理化学,3,3-二叠氮甲基氧丁环/3-叠氮甲基-3-甲基氧丁环(BAMO/AMMO),硝胺发射药,燃烧性能,燃速压力指数,热分解

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Abstract:

用密闭爆发器实验、差示扫描量热法(DSC)和扫描电子显微镜(SEM)研究了3,3-二叠氮甲基氧丁环/3-叠氮甲基-3-甲基氧丁环(BAMO/AMMO)基含能热塑性弹性体(ETPE)发射药和RGD7硝胺发射药的燃烧性能及热行为。结果表明:与RGD7硝胺发射药相比,ETPE发射药燃烧时间较长,燃速较低,燃速压力指数n大于1,而RGD7硝胺发射药燃速压力指数小于1。对于RGD7硝胺发射药,RDX的熔融吸热峰(204.8℃)不明显,且分解放热峰(240℃)滞后于硝化棉/硝化甘油(NC/NG)(194℃),而ETPE发射药中poly(BAMO/AMMO)分解温度(263℃)高于RDX(240℃)。ETPE发射药和RGD7硝胺发射药的不同燃烧性能归因于发射药中主组分的不同热行为。

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