为解决当前粉状铵油炸药爆速略低的问题,选用C—O—H燃料作还原剂与硝酸铵水溶液、表面活性剂在减压条件下脱水干燥,研磨过筛,得到新型粉状铵油炸药,分析了表观形貌和热稳定性能,并对其机械感度进行了测试,研究了装药密度对爆速的影响,对新燃料提高粉状铵油炸药爆速的原因进行了分析.结果表明,该炸药混合均匀,热稳定性好,在密度0.86 g·cm-3时,爆速达到4400 m·s-1,远超过目前使用的粉状铵油炸药爆速,认为由于新燃料中羰基可能与硝酸铵存在氢键作用,导致爆速上升.%A new type of ammonium nitrate fuel oil (ANFO) explosive was investigated to solve the problem of low detonation velocity, which was made of ammonium nitrate water solution, surfactant, oil by C-O-H chemical structure, and dried under vacuum condition. The microstructure, thermal stability and mechanical sensitivity were analyzed. The effect of charge density on detonation velocity was studied. The advantage of new type of explosives was also analyzed. Results show that the mixture uniformity of components and thermal stability are good. When the charge density is 0. 86 g · Cm-3, the detonation velocity is 4400 m · S-1. The hydrogen bonding interaction of hydrogen atom of ammonium group and carbonyl in oil, increases detonation velocity of the explosive.
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