纳米可燃剂对HMX的热分解性能及热分解动力学参数的影响（英文）
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摘要
以二甲基亚砜为溶剂,利用超声辅助喷雾重结晶原理制备了含有不同比例的纳米Al、Si可燃剂的HMX混合粒子;用X射线衍射(XRD)和差示扫描量热法(DSC)对制备的复合粒子进行性能表征;重点研究了基于Kissinger法下所得含不同比例纳米可燃剂的混合粒子热分解性能。结果表明,与未加纳米可燃剂的HMX相比,加入质量分数为20%的纳米Al可燃剂细化的HMX的活化能Ea、活化熵ΔS、活化焓ΔH,活化自由能ΔG分别降低了26.07、19.23、26.09、11.75 k J/mol,随着纳米可燃剂含量的增加,催化效果越来越明显而且相同比例的纳米Al可燃剂比纳米Si可燃剂催化效果更好。也就是说,纳米可燃剂能够提高高温下HMX的反应速率,对HMX的热分解有明显的催化作用。
Using dimethyl sulfoxide as the solvent,hybrid HMX containing different proportions of nano-aluminum and nanosilicon combustibles have been fabricated by ultrasonic assisted spray recrystallization. The thermal performance of the prepared particles has been characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The thermal decomposition properties of the mixed particles with different proportions of nano-combustible agents have been studied using Kissinger method.The results show that compared with the pristine HMX,the activation energy Ea,activation entropy ΔS,activation enthalpy ΔH,and activation free energy ΔG of the modified HMX by 20% of nano-aluminum combustibles have been decreased by 26.07 k J/mol,19.23 k J/mol,26.09 k J/mol and 11.75 k J/mol,respectively. As the content of nano-combustible agents increases,the catalytic effect becomes more and more obvious. In addition,in the same proportion,the nano-aluminum combustible agent has a better catalytic effect than the nano-silicon combustible agent. That is,the nano-combustible agent can increase the reaction rate of HMX at high temperature and has obvious catalytic effect on the thermal decomposition of HMX.
Using dimethyl sulfoxide as the solvent,hybrid HMX containing different proportions of nano-aluminum and nanosilicon combustibles have been fabricated by ultrasonic assisted spray recrystallization. The thermal performance of the prepared particles has been characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The thermal decomposition properties of the mixed particles with different proportions of nano-combustible agents have been studied using Kissinger method.The results show that compared with the pristine HMX,the activation energy Ea,activation entropy ΔS,activation enthalpy ΔH,and activation free energy ΔG of the modified HMX by 20% of nano-aluminum combustibles have been decreased by 26.07 k J/mol,19.23 k J/mol,26.09 k J/mol and 11.75 k J/mol,respectively. As the content of nano-combustible agents increases,the catalytic effect becomes more and more obvious. In addition,in the same proportion,the nano-aluminum combustible agent has a better catalytic effect than the nano-silicon combustible agent. That is,the nano-combustible agent can increase the reaction rate of HMX at high temperature and has obvious catalytic effect on the thermal decomposition of HMX.
引文
[1]Liang L,Wang J,Dong J,et al.Effects of nano-Al powder on the thermal decomposition catalytic performance of nitroamine explosives[J].Chinese Journal of Explosives&Propellants,2009,32(6):75-78.
[2]Zong Y,Jacob R J,Li S,et al.Size resolved high temperature oxidation kinetics of nano-sized titanium and zirconium particles[J].The Journal of Physical Chemistry A,2015,119:6171-6178.
[3]Liu J,Jiang W,Yang Q,et al.Study of nano-nitramine explosives:preparation,sensitivity and application[J].Defence Technology.2014,10:184-189.
[4]Brousseau P,Dorsett H E,Cliff M D,et al.Detonation properties of explosives containing nanometric aluminum powder[C].Proceedings of the 12th International Detonation Symposium.2002:11-21.
[5]Xu H,Cai H,Luo Z,et al.Synthesis and combustion catalysis of nanometer-sized neodymium oxide[J].Chinese Journal of Inorganic Chemistry,2003,19(6):627-630.
[6]Huang H,Huang Y,Li S.Research on composite explosive with nano-aluminium[J].Chinese Journal of Explosives&Propellants.2002,25(2):1-3.
[7]Wang B.Effects of additive HMX on burning rate behavior of AP/HTPB composite propellant[J].Journal of Solid Rocket Technology,1988(4):77-86.
[8]Xia Q,Li S,Wang G,et al.Combustion research on superfine aluminium powder in AP/HTPB propellant[J].Journal of Solid Rocket Technology,1994,17(4):35-42.
[9]Fu Q.Preparation of nano-porous silicon powder and its application in energetic materials[D].Taiyuan:North University of China,2016.
[10]An C,Ding P,Ye B,et al.Carbon-coated copper nanoparticles prepared by detonation method and their thermocatalysis on ammonium perchlorate[J].Aip Advances,2017,7(3):035324.
[11]Ding L,Zhao F,Liu Z,et al.The correlation of high pressure thermal decomposition characteristic of NEPE propellant with CL-20 and burning rate[J].Chinese Journal of Energetic Materials,2008,16(3):315-318.
[12]Ding L,Zhao F,Li S,et al.Combustion properties of NEPEpropellant containing CL-20[J].Chinese Journal of Energetic Materials,2007,15(4):324-328.
[13]Zuo H,Xiao L,Zhou W,et al.Study on thermal decomposition kinetics of GAP-TPE[J].Journal of Solid Rocket Technology,2011,34(3):345-348.
[14]Wang G Q,Yang L B,Lu H L,et al.Thermal decomposition of HTPE and CL-20 and HMX mixed systems[J].Journal of Solid Rocket Technology,2017,40(1):70-75.
[15]Li H Q,An C W,Du M Y,et al.Study on kinetic parameters of thermal decomposition reaction and thermal stability of3,4-Bis(3-nitrofuraszan-4-yl)furoxan based on kissinger method[J].Chinese Journal of Explosives&Propellants,2016,39(3):58-60+65.
[16]Kissinger H E.Reaction kinetics in differential thermal analysis[J].Analytical Chemistry,1957,29(11):1702-1706.
[17]Jiang Z,Li S F,Zhao F Q,et al.Effect of nano metal powder on the thermal decomposition characteristics of HMX[J].Journal of Propulsion Technology,2002,23(3):258-261.
[18]Wang Z,Zhang J.Preparation of Nano-sizedα-Al2O3and its effect on heat sensation of HMX[J].Journal of Basic Science&Engineering,2005,13(4):396-400.
[2]Zong Y,Jacob R J,Li S,et al.Size resolved high temperature oxidation kinetics of nano-sized titanium and zirconium particles[J].The Journal of Physical Chemistry A,2015,119:6171-6178.
[3]Liu J,Jiang W,Yang Q,et al.Study of nano-nitramine explosives:preparation,sensitivity and application[J].Defence Technology.2014,10:184-189.
[4]Brousseau P,Dorsett H E,Cliff M D,et al.Detonation properties of explosives containing nanometric aluminum powder[C].Proceedings of the 12th International Detonation Symposium.2002:11-21.
[5]Xu H,Cai H,Luo Z,et al.Synthesis and combustion catalysis of nanometer-sized neodymium oxide[J].Chinese Journal of Inorganic Chemistry,2003,19(6):627-630.
[6]Huang H,Huang Y,Li S.Research on composite explosive with nano-aluminium[J].Chinese Journal of Explosives&Propellants.2002,25(2):1-3.
[7]Wang B.Effects of additive HMX on burning rate behavior of AP/HTPB composite propellant[J].Journal of Solid Rocket Technology,1988(4):77-86.
[8]Xia Q,Li S,Wang G,et al.Combustion research on superfine aluminium powder in AP/HTPB propellant[J].Journal of Solid Rocket Technology,1994,17(4):35-42.
[9]Fu Q.Preparation of nano-porous silicon powder and its application in energetic materials[D].Taiyuan:North University of China,2016.
[10]An C,Ding P,Ye B,et al.Carbon-coated copper nanoparticles prepared by detonation method and their thermocatalysis on ammonium perchlorate[J].Aip Advances,2017,7(3):035324.
[11]Ding L,Zhao F,Liu Z,et al.The correlation of high pressure thermal decomposition characteristic of NEPE propellant with CL-20 and burning rate[J].Chinese Journal of Energetic Materials,2008,16(3):315-318.
[12]Ding L,Zhao F,Li S,et al.Combustion properties of NEPEpropellant containing CL-20[J].Chinese Journal of Energetic Materials,2007,15(4):324-328.
[13]Zuo H,Xiao L,Zhou W,et al.Study on thermal decomposition kinetics of GAP-TPE[J].Journal of Solid Rocket Technology,2011,34(3):345-348.
[14]Wang G Q,Yang L B,Lu H L,et al.Thermal decomposition of HTPE and CL-20 and HMX mixed systems[J].Journal of Solid Rocket Technology,2017,40(1):70-75.
[15]Li H Q,An C W,Du M Y,et al.Study on kinetic parameters of thermal decomposition reaction and thermal stability of3,4-Bis(3-nitrofuraszan-4-yl)furoxan based on kissinger method[J].Chinese Journal of Explosives&Propellants,2016,39(3):58-60+65.
[16]Kissinger H E.Reaction kinetics in differential thermal analysis[J].Analytical Chemistry,1957,29(11):1702-1706.
[17]Jiang Z,Li S F,Zhao F Q,et al.Effect of nano metal powder on the thermal decomposition characteristics of HMX[J].Journal of Propulsion Technology,2002,23(3):258-261.
[18]Wang Z,Zhang J.Preparation of Nano-sizedα-Al2O3and its effect on heat sensation of HMX[J].Journal of Basic Science&Engineering,2005,13(4):396-400.