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| 1 | 浇注高聚物粘结炸药的粘结剂体系设计及其应用研究显示文摘为提高端羟基聚丁二烯(HTPB)基浇注高聚物粘结炸药(PBX)的固相含量、力学性能,并降低渗油性,采用己二酸二辛酯和壬酸异癸酯为原料,根据溶度参数近似原理设计了一种复合增塑剂AI.基于HTPB/AI粘结剂体系制备出固相含量达到90%的浇注PBX,研究了PBX的机械感度、热分解、固相含量等与粘结剂体系的关系。结果表明:复合增塑剂AI降低了HTPB胶片的模量,从而降低了PBX的机械感度;AI降低了浇注PBX药浆黏度,提高了固相含量,从而提升了能量水平;对原材料进行高温真空旋蒸处理,降低了原材料中水分等杂质的含量,从而降低了PBX的渗油性,提高了复合增塑剂的安定性及其与PBX配方中其他组分的相容性。 | 欧亚鹏 闫石 焦清介 郭学永 孙亚伦 | 2018 | 兵工学报2018，39，1： | 3 |
| 2 | The non-isothermal gravimetric method for study the thermal decomposition kinetic of HNBB and HNS explosives显示文摘The hexanitrostilben(HNS) is a thermally stable explosive that can be prepared from hexanitrobibenzyl(HNBB).Therefore,the investigation of thermal stability of HNBB can be important in the yield of preparation of HNS.The decomposition kinetic of HNBB and HNS are studied by non-isothermal gravimetric method.The TG/DTG curves in non-isothermal method are obtained in range of 25℃-400℃at heating rates of 3℃/min,5℃/min,8℃/min,10℃/min and 12℃/min.The data of weighttemperature are used for calculation of activation energy(E_a) of thermal decomposition reactions by methods of Ozawa,Kissinger,Ozawa-Flynn-Wall(OFW) and Kissinger-Akahira-Sunose(KAS) as modelfree methods and Strink's equation as model-fitting method.The compensation effect is used for prediction of mechanism and determination of pre-exponential factor(InA) of the decomposition reaction.A reduction 60 kj/mol for the average of activation energy of thermal decomposition reaction of HNBB is obtained versus HNS.This result shows the lower thermal stability of HNBB in comparison to HNS,The Avrami equation(A_(3/2)) with function f(α)=3/2(1-α)[-In(1-α)]^(1/3) indicates the predicted mechanism for thermal decomposition reaction both explosives. | Hamid Reza Pouretedal Sajjad Damiri Zahra Bighamian | 2020 | Defence Technology(防务技术)2020，16，1： | 2 |
| 3 | Theoretical Exploration on Structural Stabilities and Detonation Properties of Nitrimino Substituted Derivatives of Cyclopropane显示文摘The packed density, detonation velocities, and detonation pressures of a series of cyclopropane derivatives were investigated to look for high energy density compounds. For exploring the possibility of synthesis, the bond order, heats of formation(HOF), bond dissociation energy(BDE), and characteristic height were calculated. Based on our results, A3 has the best detonation characters. Both A1 and A2 showed comparative detonation parameters and compact sensitivity with RDX, and could be regarded as the candidates of high energy density molecules.Both the heats of formation and explosive heats rose with the increase of nitrimino groups and the strain energy of three-membered ring. For A1 compound, pyrolysis mechanism might be a mix one(breakages of C–C and N–NO2 bonds). However, for A2 and A3 compounds, the N–NO2 is the trigger bond in explosive reactions. Our results may provide the basic information for further study of this kind of compounds. | 刘涛 贾进章 李步通 高科 | 2019 | Chinese Journal of Structural Chemistry2019，38，5： | 2 |
| 4 | 基于差示扫描量热实验对1,3,5-三硝基-1,3,5-三氮杂环己烷热分解的测试研究显示文摘为了对1,3,5-三硝基-1,3,5-三氮杂环己烷(RDX)的热分解进行测试研究,通过差示扫描量热仪在不同升温速率条件下对RDX进行线性升温实验,采用Kissinger法和Ozawa法分别对RDX的热分解曲线进行动力学计算,并结合热分析软件计算自加速分解温度等参数。结果表明,RDX的初始分解温度、分解峰温、分解完成温度范围分别为208.4-214.2℃、225.7-239.3℃和234.0-252.4℃,分解焓平均为362.9 J·g^-1。采用Kissinger法对RDX的DSC实验数据进行计算,得出的表观活化能为190.8 kJ·mol^-1,与Ozawa法计算的结果在反应末期重合,表明两种方法计算的表观活化能较为准确。在包装质量分别为1.0、2.0和5.0 kg时,其自加速分解温度为97.0、93.0和87.0℃,表明随着包装质量的增加,自加速分解温度逐渐降低,危险性随之增大。 | 于硕 谭迎新 | 2020 | Journal of Measurement Science and Instrumentation2020，11，3： | 1 |
| 5 | 密闭体系下TATB的热分解动力学与热危害预测显示文摘为了解三氨基三硝基苯(TATB)在实际储存、运输过程中的热危险性,利用差示扫描量热仪(DSC)研究TATB在密闭体系下的热行为,并采用模型拟合方法建立TATB的热分解动力学模型。测试结果表明,其分解过程可以用两步平行反应进行描述,动力学模型表示为:第一步F→P1为N级反应,第二步F→P2为自催化反应。基于该模型对自加速分解温度(SADT)进行预测,结果表明,与包装材料相比,装载量对SADT的影响较大;对理想绝热条件下(即Φ=1)的分解过程进行预测,结果表明,起始温度为200℃的绝热诱导期接近450 h,且受热履历影响;对到达指定转化率所需时间(TCL)的预测表明,在100℃的等温环境下,TATB的分解转化率达到0.5%需要4 900 a左右。 | 柯浩民 银颖 吴文倩 王顺尧 陈利平 | 2020 | 爆破器材2020，49，3： | 1 |
| 6 | The kinetic of mass loss of grades A and B of melted TNT by isothermal and non-isothermal gravimetric methods显示文摘The kintic and activation energy of mass loss of two grades of melted TNT explosive, grade A and grade B, with freezing points of 80.57 and 78.15 ℃, respectively, were studied by isothermal and nonisothermal gravimetric methods. In isothermal method, the mass loss of samples in containers of glass and aluminum was followed in temperatures of 80, 90 and 100 ℃. The kinetic of the mass loss of the samples in the aluminum container was higher than the kinetic of it in the glass container that can be related to the effects of heat transfer and catalytic of aluminm metal. Also, the presence of impurities in grade B was due to increasing of kinetic of mass loss of it versus grade A. The non-isothermal curves were obtained in range of 30-330 ℃ at heating rates of 10,15 and 20 ℃·min^(-1).The TG/DTG data were used for determination of activation energy(E_a) of mass loss of TNT samples upon degradation by using Ozawa, Kissinger, Ozawa-Flynn-Wall(OFW) and Kissinger-Akahira-Sunose(KAS) methods as model free methods. The activation energies of grades of A and B of TNT was obtained 99-120 and 66-70 kJ mol^(-1)respectively. The lower values of activation energy of the degradation reaction of grade B confirm the effect of impurities in the kinetics of mass loss of this grade. | Hamid Reza Pouretedal Sajjad Damiri Parvaneh Nosrati Ehsan Forati Ghaemi | 2018 | Defence Technology(防务技术)2018，14，2： | 1 |
| 7 | Effect of microstructure on short pulse duration shock initiation of TATB and initial response mechanism显示文摘Micro-TATB particles with different sizes and 3D nanoporous TATB architectures with different specific surface areas were prepared through recrystallization to study short pulse duration shock initiation properties by electric gun technology.For micro-TATB,the initiation threshold significantly decreases with TATB average size ranging from 79.7μm to 0.5μm.For 3D nanoporous TATB architecture,the initiation threshold decreases and then increases with specific surface areas increased from 9.6 m^2/g to36.2 m^2/g.The lowest initiation thresholds are obtained for the micro-TATB with average sizes of 1.3μm and 0.5μm,and 3D nanoporous TATB architecture with specific surface area of 22.4 m^2/g.The shock initiation thresholds of micro-TATB and 3D nanoporous TATB architectures show significantly decreases with the porosity increased.The decomposition reaction and thermal conductivity properties were further investigated to understand the initial response mechanism.High porosity provides more collapse sites to generate high temperature for formation of hot spots.The low thermal conductivity and decomposition temperature could enhance the formation and ignition of the hot spots,and initial decomposition reaction of TATB.The effect of the decomposition temperature is higher than that of the thermal conductivity on the shock initiation properties.The enhanced decomposition reaction could pro mote energy release and transfer process from the ignition to the combustio n.This work offe rs a new insight to understand the effects of microstructure on the shock initiation properties and the initial response mechanism of TATB. | Jun Wang Wei Cao Xiang-li Guo Bi-bo Cheng Lu-lu Zhao Rui-rui Liu Xiao-wei Chen | 2020 | Defence Technology(防务技术)2020，16，2： | 1 |
| 8 | PYX基高聚物粘结炸药界面相互作用及力学性能的分子动力学模拟显示文摘本文采用分子动力学(MD)方法,模拟计算了聚氨酯(Estane 5703),三元乙丙橡胶(EPDM),氟聚物(F2311)三种高聚物分子分别与2,6-双(苦氨基)-3,5-二硝基吡啶(PYX)(011)晶面构建的高聚物粘结炸药(PBXs)体系的结合能,内聚能密度,径向分布函数以及力学性能.结果表明,Estane 5703与PYX(011)晶面之间相互作用最强;不同粘结剂与晶体之间的内聚能密度大小顺序为PYX/F2311>PYX/Estane 5703>PYX/EPDM;径向分布函数分析可知PYX(011)晶面与高聚物分子间的相互作用主要为静电相互作用;添加3种粘结剂后PBX体系的拉伸强度和断裂强度都得到了改善,而除了F2311外,加入另外两种粘结剂后,提高了PBX体系的抗剪切应变能力. | 陈芳 任圆圆 何磊 刘思佳 | 2022 | 原子与分子物理学报2022，39，5： | 1 |
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