abstract

Progress of Study on Thermal Behaviors of Nitrogen-rich Compounds as Azole, Triazine and Furazan

HAN Zhi-yue, YANG Yue-zhen, DU Zhi-ming, ZHANG Ying-hao, YAO Qian

ChineseJournalofPropellants&Explosives,2016,39(6): 1-11.

The progress of study on thermal behaviors of nitrogen-rich compounds as azole, triazine and furazan in recent years at home and abroad were summarized. The methods of thermal behavior research were analyzed and summarized. The influence law of compound structure and substituted groups on the thermal stability of the compound was obtained.

Research Progress on the Synthesis of Energetic Compounds Based onα-Polynitromethyl-azoxy Moieties

ZHANG Jia-rong, BI Fu-qiang, WANG Bo-zhou, ZHANG Jun-lin, ZHAI Lian-jie, LI Ya-nan, JIA Si-yuan

ChineseJournalofPropellants&Explosives,2016,39(6): 12-19.

The construction method ofα-polynitromethyl-azoxy moiety was reviewed. The research status on the synthesis of the above-mentioned three kinds of energetic groups were emphatically introduced using primary amine and 2,2-dimethyl-5-nitro-5- nitroso-1,3-dioxane as raw materials, via oxidative coupling, hydrolysis, dehydroxymethyl and nitration etc.step. The physiochemical properties and detonation performances of 3,3′-bis(dinitromethyl-azoxy)-azoxyfurazan and 3,3′-bis(trinitromethyl-azoxy)azoxyfurazan etc. eight typically reported compounds were analyzed and compared according to the literature and theoretical calculation data.

Influence of Constraint Strength of Shells on the Performance of Thermobaric Explosives Blasting in the Air

CHENG Yu-teng，LIN Qiu-han，LI Xi，ZHAN Gao-shu，JIA Hui

ChineseJournalofPropellants&Explosives,2016,39(6): 20-25.

The static blasting experiment in air of solid thermobaric explosive under the constraint strength of different shells was carried out. The numerical simulation of the process was performed by AUTODYN software.The simulated results were compared with the test ones.

Theoretical Study of Cage-HMX: 2,4,6,8-Tetranitro-2,4,6,8-tetraazatricycle[3.3.0.03,7]octane

BI Fu-qiang, ZHAI Lian-jie, ZHANG Jun-lin, WANG Bo-zhou, FAN Xue-zhong

ChineseJournalofPropellants&Explosives,2016,39(6):26-31.

A new high energy-density material,2,4,6,8-tetranitro-2,4,6,8-tetraazatricycle[3.3.0.03,7]octane(cage-HMX),was designed. Based on the density function theory(DFT)-B3LYP/6-31G** method at the 6-31G** basis set level, the geometrical configuration, strain energy, electrostatic potential distribution, density, enthalpy of formation, oxygen balance, detonation velocity, detonation pressure, unit specific impulse and impact sensitivity of cage-HMX-I-cage-HMX-IV were studied.

Molecular Dynamics Research on Mechanical Properties and Sensitivity of RDX-TNT Explosive

HANG Gui-yun, YU Wen-li, WANG Tao, LI Zhen

ChineseJournalofPropellants&Explosives,2016,39(6): 32-37.

The crystal cell models of different RDX-TNT explosives were established by Materials Studio (MS) software. Using molecular dynamics method, the mechanical properties, trigger bond length distribution, interaction energy of trigger bond diatom and cohesive energy density of the TNT-RDX explosive with different formulations were calculated and compared.

Photocatalytic Degradation of DNT Wastewater by Composite Catalyst and Its Degradation Mechanism

SHANG Hai-ru, FENG Chang-gen, SUN Liang, GAN Qiang

ChineseJournalofPropellants&Explosives,2016,39(6): 38-43.

Preparation and Thermal Properties of Nano-Al/CuO Composite

DONG Xiao-hu, HU Lan, WANG Ying-lei, SHU Yuan-jie, YAN Rui, WU Min-jie

ChineseJournalofPropellants&Explosives,2016,39(6): 44-48.

Nano-Al/CuO composite was prepared and characterized by XRD, TEM, SEM. Thermal properties were studied by TG and DSC. The exothermic quantity of the composite with different Al/CuO ratio was investigated.

Treatment of TNT Red Water Polluted Soil by Thermal Decomposition Method

DING Qiu-hua，LI Yu-ping，JIANG Xin，GU Zhen-hua，CAI Zhen-feng，CHEN Lin-zi，WU Chun-yan，WANG Xin

ChineseJournalofPropellants&Explosives,2016,39(6): 49-54.

The effect of thermal decomposition temperature, thermal decomposition time and mass of polluted soil samples on the treatment effect of TNT red water polluted soil was studied by the thermal decomposition method.

The Reactivity between Aluminum Powder and Liquid Phase of Fuel-air Explosives

XING Xiao-ling, ZHAO Sheng-xiang, LI Wen-xiang, FANG Wei

ChineseJournalofPropellants&Explosives,2016,39(6): 55-57.

Under lower temperature conditions, the aluminum can make the oxidation peak of MC10 more obvious, and IPN can lower the oxidation temperature peak. The very significant improvement of the Al/IPN/MCIO system is that the more stable status at the higher temperature conditions.

Experimental Study on the Shock Response of a TATB-based Insensitive Explosive with Electromagnetic Particle Velocity Gauge

LI Jin-he，FU Hua，ZHAO Ji-bo，GONG Yan-qing，SUN Yong-qiang

ChineseJournalofPropellants&Explosives,2016,39(6): 58-62.

The particle velocities of the insensitive explosive Tx were obtained by electromagnetic velocity gauges under different loading pressure. The shock response characteristic of the insensitive explosive Tx was recognized based on the experimental results.

Experiment and Numerical Simulation of Shock Initiation of JH-14C Detonation Device

LI Shuo，YUAN Jun-ming，LIU Yu-cun，QIN Wen-zhi，XING Zong-ren，TANG Xin

ChineseJournalofPropellants&Explosives,2016,39(6): 63-68.

Based on small scale gap test, the finite element model was established and simulation calculation was carried out to determine the Lee-Tarver parameters of JH-14C booster explosive with the density of 1.65 g/cm3. The shock initiation experiments of JH-14C detonation device were performed.The critical steel gap thickness of JH-14C explosive device in the shock initiation experiment was determined by changing the steel gap thickness at the top of detonating explosive.

Effect of Friction Effect on Dynamic Mechanical Performances of a PBX Explosives

LI Liang-liang, QU Ke-peng, SHEN Fei, XIAO Wei, WANG Hui, HE Chao

ChineseJournalofPropellants&Explosives,2016,39(6): 69-73.

A correction method of dynamic mechanics performance parameters (dynamic Poisson′s ratio and dynamic Young′s modulus) is established.Taking a cast PBX explosive as an example, the dynamic mechanics parameters of 4 kinds of samples were calculated and compared by conventional method and correction method, respectively.

Effect of Aluminum/Organic Fluoride Composite on the Combustion Properties of Aluminized HTPB Propellants

LI Yi, GUO Xiao-yan, YANG Rong-jie, LI Zi-yan, WANG Ning-fei

ChineseJournalofPropellants&Explosives,2016,39(6): 74-79.

The nano and micro aluminum/organic fluoride composites(nmAl/OF and μmAl/OF)were fabricated by ball milling method. Scanning electron microscope(SEM), transmission electron microscope(TEM) and particle size analysis were applied to determine the properties of the milling composites.

Effect of Lead Salt Catalysts on the Combustion Properties of GAP Reduced Smoke Propellant

LI Wei，YIN xin-mei,WANG Xiao-ying,ZHANG Lin,TANG Quan,PAN Xin-zhou,WANG Yue

ChineseJournalofPropellants&Explosives,2016,39(6): 80-83.

The effects of different morphology lead salt catalysts CH-I and CH-II on the thermal decomposition behavior of AP were investigated by DSC, their kinetic parameters of thermal decomposition reaction were obtained and the effects of catalysts on the combustion properties of GAP reduced smoke propellant were investigated.

Influences of Charging Size and Structure on Cook-off Characteristics of HTPE Propellant

YANG Xiao, ZHI Xiao-qi, YANG Bao-lang, LI Juan-juan

ChineseJournalofPropellants&Explosives,2016,39(6): 84-89.

The influences of the differences of charging size and structure between small size cook-off sample and solid rocket motor on the cook-off characteristics of HTPE propellant were researched by numerical simulation with different heating rates.

Study on Improving the Mechanical Properties of Nitroguanidine Gun Propellant with KH550 at Low Temperature

ZHU Deng-pan，LIU Zhi-tao, LIU Qiong, LIAO Xin

ChineseJournalofPropellants&Explosives,2016,39(6): 90-93.

The silane coupling agent (KH550) was used in the surface treatment of nitroguanidine. The physical and chemical properties of nitroguanidine coated by KH550 were studied by scanning electron microscopy, infrared spectroscopy, differential scanning calorimetry.The impact, compressive and tensile tests,and closed bomb test were used to study the mechanical properties and combustion properties of gun propellant.

Azidonitramine Intermediate Sample Preparation for Quantitative Analysis by Calendering-drying Method

JIA Lin, ZHANG Gao, ZHANG Lin-jun, YANG Cai-ning, GU Yan, CUI Peng-teng

ChineseJournalofPropellants&Explosives,2016,39(6): 94-97.

To reduce the analysis time of the azidonitramine intermediate sample, the sample was prepared by calendering-drying method, which was calendered two times at 85-95℃ to remove the most of water, and dried completely in oven at 55℃.

Static and Dynamic Combustion Performance in Bore of DAGQ Gun Propellant

YAN Guang-hu, ZHAO Yu-hua, ZHANG Yu-cheng, LIU Yi,CUI Peng-teng, LIANG Lei, LI Qiang,XIAO Xia

ChineseJournalofPropellants&Explosives,2016,39(6): 98-102.

Based on the classical interior ballistic theory, the testing system and processing method of gun propellant combustion in the gun chamber were established. The static and dynamic combustion rules and dynamic combustion characteristic under different temperature of DAGQ gun propellant were researched by the closed bomb combustion test and dynamic combustion performance test in chamber of gun propellants with the microwave interferometer.

Effect of Multi-hydroxyl Polyether on the Anti-impact Properties of High-energy Nitramine Gun Propellant

YAN Xi-yan, ZHANG Li-hua, XUE Huan

ChineseJournalofPropellants&Explosives,2016,39(6):103-106.

Tubular nitramine gun propellant samples containing different amount of multi-hydroxyl polyether with different number-average molecular weight as toughening agents were prepared respectively. The axial and radial impact strength of nitramine propellant samples under different temperature were tested using drop hammer impact testing machine (the quality of the drop mass is 0.494 kg, impact velocity is 5m/s) and the pendulum impact testing machine (the pendulum energy is 1J).