推进技术 ›› 2015, Vol. 36 ›› Issue (1): 136-141.

• 材料 推进剂 燃料 • 上一篇    下一篇

NM/RDX/Nano-Al膏体推进剂特性研究

李 鑫,赵凤起,罗 阳,裴 庆,李 猛,胥会祥   

  1. 西安近代化学研究所 燃烧与爆炸技术重点实验室,陕西 西安 710065,西安近代化学研究所 燃烧与爆炸技术重点实验室,陕西 西安 710065,西安近代化学研究所 燃烧与爆炸技术重点实验室,陕西 西安 710065,西安近代化学研究所 燃烧与爆炸技术重点实验室,陕西 西安 710065,西安近代化学研究所 燃烧与爆炸技术重点实验室,陕西 西安 710065,西安近代化学研究所 燃烧与爆炸技术重点实验室,陕西 西安 710065
  • 发布日期:2021-08-15
  • 作者简介:李 鑫(1987—),男,硕士生,研究领域为纳米铝粉表面包覆改性及其在推进剂中的应用。
  • 基金资助:
    国家自然科学基金(21173163);燃烧与爆炸技术重点实验室(62202060103)。

Study on NM/RDX/Nano-Al Pasty Propellant Property

  1. Science and Technology on Combustion and Explosion Laboratory,Xi’an Modern Chemistry Research Institute,Xi’an 710065,China,Science and Technology on Combustion and Explosion Laboratory,Xi’an Modern Chemistry Research Institute,Xi’an 710065,China,Science and Technology on Combustion and Explosion Laboratory,Xi’an Modern Chemistry Research Institute,Xi’an 710065,China,Science and Technology on Combustion and Explosion Laboratory,Xi’an Modern Chemistry Research Institute,Xi’an 710065,China,Science and Technology on Combustion and Explosion Laboratory,Xi’an Modern Chemistry Research Institute,Xi’an 710065,China and Science and Technology on Combustion and Explosion Laboratory,Xi’an Modern Chemistry Research Institute,Xi’an 710065,China
  • Published:2021-08-15

摘要: 为进一步研发新型特种推进剂品种,向推进技术应用领域发展和延伸,开展了NM(硝基甲烷)/RDX/Nano-Al膏体推进剂配方研究,并对其能量、流变以及燃烧性能进行了分析。结果表明:采用最小自由能法估算膏体推进剂配方比冲为2674.2 N·s/kg;膏体推进剂流变行为遵循Herschel-Bulkley本构方程,在0~30℃范围内,假塑性指数n小于1,属于非牛顿假塑性流体,同时膏体推进剂具有明显的触变性以及蠕变-回复特性,在角频率为1Hz且低应力下(≤50Pa),膏体推进剂储能模量(G′)大于损耗模量(G′′),此时具有较稳定的三维网络结构;与含纳米铝热剂Nano-Al/PbO双基系推进剂相比,膏体推进剂在10~15MPa压强范围内燃速较快,但在低压下未燃。

关键词: 凝胶;膏体推进剂;配方;推进剂性能

Abstract: In order to further develop new special propellant and promote the development and extension of the ulsion technology,the NM/RDX/Nano-Al pasty propellant was studied and the energy performance,rheological behavior and combustion property were analyzed. Results show that the specific impulse is 2674.2 N·s/kg by the estimation of the minimum free energy method. The rheological behavior follows the Herschel-Bulkley law,and the non-Newtonian pseudopalstic index n is less than 1 at 0~30 ℃ and the pasty propellant is a typical pseudopalstic fluid. Also,the pasty propellant has obvious thixotropy and creep-recovery characteristics. The storage modulus(G') is greater than the loss modulus(G') at the angular frequency of 1Hz under low stress(not more than 50Pa),and now pasty propellant has a three-dimensional network structure. Compared with the double-base propellant containing nano thermite Nano-Al/PbO,the burning rate of pasty propellant is greater at 10~15MPa,but it does not burn at low pressure.

Key words: Gel;Pasty propellant;Formulation;Propellant property