18-冠-6/ADN含能共晶氧化剂对BAMO-THF推进剂能量特性的影响  

Effect of Energetic Cocrystal Oxidizer 18-Crown-6/ADN on Energy Characteristics of BAMO-THF Propellants

作　　者：姚二岗[1] 仪建华[1] 董平 赵凤起[1] 谢五喜[3] 杨宗伟[4] 徐司雨[1] 孙志华[1] YAO Er-gang;YI Jian-hua;DONG Ping;ZHAO Feng-qi;XIE Wu-xi;YANG Zong-wei;XU Si-yu;SUN Zhi-hua(Science and Technology on Combustion and Explosion Laboratory,Xi′an Modern Chemistry Research Institute,Xi′an 710065,China;The 8th Institute of Shanghai Academy of Space Flight Technology,Shanghai 200233,China;Xi′an Modern Chemistry Research Institute,Xi′an 710065,China;Institute of Chemical Materials,ChinaAcademy of Engineering Physics,Mianyang Sichuan 621900,China)

机构地区：[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 [2]上海航天科技集团第八设计部,上海200233 [3]西安近代化学研究所,陕西西安710065 [4]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《火炸药学报》2018年第3期267-272,共6页Chinese Journal of Explosives & Propellants

基　　金：国家自然科学基金(No.21473130);燃烧与爆炸技术重点实验室基金(No.9140C350601150C35163)

摘　　要：采用X射线单晶衍射表征了新型18-冠-6/二硝酰胺铵含能共晶(18-Crown-6/ADN)氧化剂晶体的结构;采用氧弹式量热计测定了其燃烧热并获得其标准摩尔生成焓(Δ_fH_m~θ);采用最小自由能法计算了18-Crown-6/ADN对3,3-二叠氮甲基氧丁环与四氢呋喃共聚醚(BAMO-THF)推进剂能量性能的影响。结果表明,18-Crown-6/ADN晶体属于单斜晶系,C2/c空间群,晶胞参数:a=2.393 5nm、b=0.863 27nm、c=2.032 4nm;α=90°、β=112.874°、γ=90°;18-Crown-6/AND的Δ_fH_m~θ为-(833.57±4.89)kJ/mol,其取代配方中的AP、HMX、ADN或CL-20后推进剂的理论比冲(I_(sp))最低;含18-Crown-6/ADN的BAMO-THF推进剂中加入部分高能组分(如CL-20、HMX)可提高其能量性能;能量计算表明,BAMO-THF/A3、Al、AP、(18-Crown-6/ADN)/CL-20/HMX的质量分数分别为25%、18%、15%、42%,18-Crown-6/ADN、CL-20和HMX的质量比约3∶4∶3时,配方的I_(sp)约2 550N·s/kg,燃烧室温度约2 900K,燃气平均相对分子质量约24.50,特征速度约1 540m/s。The crystal structure of 18-Crown-6/ammonium dinitramide （18-Crown-6/ADN） energetic cocrystal oxidizer was characterized by single crystal X-ray diffraction. Its heat of combustion was measured by an oxygen bomb calorimeter. And the standard molar enthalpy of formation （Δ f H θ m） was also obtained by the heat of combustion. The effect of 18-Crown -6/ADN on the energy characteristics of 3,3-bis（azidomethyl） oxetane and tetrahydrofuran copolymer （BAMO-THF） based propellant was calculated by the least free energy method. The results show that the 18-Crown-6/ADN crystal belongss to monoclinic system, space group C2/c with crystal parameters of a =2.393 5 nm, b =0.863 27 nm, c =2.032 4 nm, α =90°, β =112.874°, γ =90°. Its Δ f H θ m is -（833.57±4.89） kJ/mol. The theoretical specific impulse （ I sp ） is the lowest when the AP, HMX, ADN or CL-20 in the formula is substituted by the 18-Crown-6/ADN. It can improve the energy performance of BAMO-THF propellant containing 18-Crown-6/ADN by adding some high-energy components. The energy calculation results show that the I sp is about 2 550 N·s/kg, the combustor temperature is about 2 900 K, the average relative molecular mass of combustion gas is about 24.50 and the characteristic velocity is about 1 540 m/s when the content of BAMO-THF/A3, Al, AP, （18-Crown-6/ADN）/CL-20/HMX is 25%, 18%, 15%, 42% and the mass ratio of 18-Crown-6/ADN, CL-20 and HMX is about 3∶4∶3.

关 键 词：含能共晶氧化剂 18-Crown-6/ADN 燃烧热 BAMO-THF推进剂 能量特性 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]