无铝低燃速NEPE推进剂的燃烧性能  

Combustion Property of Aluminum-free NEPE Propellant with Low Burning Rate

作　　者：宋琴[1] 代志高[1] 邓琪明 李伟[1] 项丽[1] 吴京汉[1] 

机构地区：[1]湖北航天化学技术研究所,湖北襄阳441003

出　　处：《火炸药学报》2014年第5期81-84,共4页Chinese Journal of Explosives & Propellants

摘　　要：采用水下声发射法测定了无铝低燃速NEPE推进剂的燃速,研究了增塑剂种类、高氯酸铵（AP）与奥克托今（HMX）含量、AP粒度级配以及降速剂对无铝NEPE推进剂燃烧性能的影响。结果表明,通过选择合适的增塑剂、调整AP/HMX的相对含量、AP粒度级配以及采用有效的降速剂可使推进剂基础配方在3.5MPa下静态燃速达到4.0～5.5mm/s,2～5MPa下静态压强指数可降至0.30以下;NEPE推进剂燃烧时,NO2的生成速度越慢或NO2的含量越低,则推进剂的燃速越小,反之则越高。The burning rates of aluminum-free NEPE propellant with low burning rate were measured by the underwater acoustic emission method, and the effect of types of plasticizer, the relative content of HMX and AP, and the granularity graduation of AP and burning rate inhibitor on the combustion property of aluminum-free NEPE propellant with low burning rate was studied. The results show that through choosing an appropriate kind of plasti cizer, adjusting the granularity graduation of AP and the relative content of HMX and AP and selecting a type of ef- fective burning rate inhibitor, the static burning rate of propellant based formula can decline to 4.0--5.5 mm/s at 3.5 MPa, and the pressure exponent can reduce to 0.3 or even lower over the range of 2--5 MPa. The lower the generating rate of NO2 or the percentage of NO2, the smaller the burning rate of propellant, conversely, the higher, when the NEPE propellant is combusted.

关 键 词：物理化学 NEPE推进剂 低燃速 降速剂 粒度级配 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O643.2[理学—物理化学]