2019年第5期Ei 收录情况
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 1. ---------------------------------------------------------------
Title:
Damage Behavior of GAP Solid Propellant by In-situ Tensile SEM Method
Accession number:20195007815537
Title of translation:原位拉伸扫描电镜法研究GAP推进剂的损伤行为
Authors:    Yang, Qiu-Qiu1 ; Cai, Ru-Lin1; Xu, Sheng-Liang1; Zhang, Jian1; Huang, Zhi-Ping1; Zhou, Ming-Chuan1
Author affiliation:1 Hubei Institute of Aerospace Chemotechnology, Xiangyang; Hubei; 441003, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:511-515
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:In-situ tensile scanning electron microscopy (SEM) observations were utilized to investigate the tensile fracture behavior of the GAP solid propellant. Quantitative analysis of fracture evolution is carried out by combining digital image technology and fractal dimension method. The results show that the microstructure damage first occurs in the concentrated distribution area of AP particles with large particle size, the fracture and debonding of small amount of adhesive matrix between adjacent AP particles starts. Then AP particles in the dispersed area and their adjacent positions are debonded to the adhesive matrix. The fracture increases rapidly in the early tension stage, and then the cracks become slowly till the whole propellant broke. The lower the tensile rate is, the faster the cracks grow, and the greater the damage degree in the tension process is. Among all the test tensile rates, the tensile rate of 0.05mm/min was the most obvious one.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:10
Main heading:Cracks
Controlled terms:
    Adhesives -  Fractal dimension -  Fracture -  Fracture mechanics -  Particle size -  Particle size analysis -  Scanning electron microscopy -  Solid propellants
Uncontrolled terms:
    Amount of adhesive -  Damage behavior -  Digital image technology -  Fractal dimension method -  In-situ SEM -  Large particle sizes -  Material mechanics -  Tensile fractures
Classification code:524Solid Fuels -  804Chemical Products Generally -  921Mathematics -  931.1Mechanics -  951Materials Science
DOI:10.14077/j.issn.1007-7812.2019.05.015
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


2. ---------------------------------------------------------------
Title:Synthesis and Performances of 3-Nitroguanidino-1, 2, 4-triazolo[4, 3-b]-s-tetrazine and Its Guanylurea Salts
Accession number:20195007824215
Title of translation:3-硝基胍-1, 2, 4-三唑[4, 3-b]-s-四嗪及其脒基脲盐的合成与性能研究
Authors:    Jia, Si-Yuan1 ; Zhang, Hai-Hao1; Bi, Fu-Qiang1, 2 ; Wang, Bo-Zhou1, 2; Zhang, Jia-Rong1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
2 State key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an; 710065, China
Corresponding author:Bi, Fu-Qiang (bifuqiang@gmail.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:455-459
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:Using 3, 6- bis (3, 5-dimethylpyrazol-1-yl)-1, 2, 4 -tetrazine as the starting material, 3-nitroguanidino-1, 2, 4-triazolo[4, 3-b]-s-tetrazine (NGTT) was synthesized through substitution, cyclization and acidification reactions. A novel energetic N-gualnylurea salt of 3-nitroguanidino-1, 2, 4-triazolo[4, 3-b]-s-tetrazine (NGTT-M) was synthesized for the first time, and their structures were characterized by NMR, IR and elemental analysis. The cyclization reaction conditions for the key intermediate 3-(3, 5- dimethylpyrazol-1-yl) -1, 2, 4- triazole [4, 3-b]-s- tetrazine (DMPTT) were optimized with a yield up to 82%. The thermal stabilities of NGTT and NGTT-M were studied by DSC method, and the geometric structures of NGTT and its anion were studied by quantum chemistry methed. The detonation velocity, detonation pressure and specific impulse as monopropellant of NGTT and NGTT-M were calculated. The results show that the decomposition points of NGTT and NGTT-M are 250℃ and 221.1℃ with the densities of 1.77 and 1.77 g/cm3, the heat of formation of 567.3 and 500. 7kJ/mol, the detonation velocities of 7366.8 and 7391.9m/s, the detonation pressure of 23.4 and 23.0GPa, combustion temperature of 2475.2 and 1834.8K, characteristic velocities of 1404.2 and 1269.2m/s, and specific impulses of 2210.5 and 2016.7N?s/kg, showing that NGTT-M possesses high nitrogen content and good thermal stability, large gas production and low combustion temperature.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:17
Main heading:Cyclization
Controlled terms:
    Combustion -  Combustion knock -  Detonation -  Low temperature production -  Quantum chemistry -  Reaction intermediates -  Thermodynamic stability
Uncontrolled terms:
    Energetic compounds -  Ionic salts -  NGTT -  Organic Chemistry -  S-tetrazine
Classification code:521.1Fuel Combustion -  641.1Thermodynamics -  801.4Physical Chemistry -  802.2Chemical Reactions -  804Chemical Products Generally
Numerical data indexing:Mass_Density 1.77e+03kg/m3, Percentage 8.20e+01%, Pressure 2.30e+10Pa, Pressure 2.34e+10Pa, Temperature 1.83e+03K, Temperature 2.48e+03K, Velocity 1.27e+03m/s, Velocity 1.40e+03m/s, Velocity 7.37e+03m/s, Velocity 7.39e+03m/s
DOI:10.14077/j.issn.1007-7812.2019.05.006
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


3. ---------------------------------------------------------------
Title:Numerical Simulation and Experimental Study of Microporosity of DNTF during Solidification Process
Accession number:20195007815521
Title of translation:DNTF凝固过程显微疏松的模拟计算和试验研究
Authors:    Liu, Rui-Peng1 ; Jia, Xian-Zhen1 ; Wang, Yong-Shun1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Jia, Xian-Zhen (Jiaxz1027@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:485-489
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:In order to understand the micro characteristics of DNTF solidification, the solidification temperature of DNTF was numerically calculated by using the thermal conductivity module of the ProCAST software. The distribution of microporosity of DNTF was simulated by the advanced porosity module based on the solidification temperature and the simulation results were vertified by the experiment. The temperature curves at three different positions of the sample during the solidification of DNTF were achieved and the microporosity were characterized by using CT. The results show that the solidification temperature of DNTF agrees well with the S-shape laws and the average adjusted R-square of Logistic function fitting is 0.997. In addition, the simulated solidification temperatures are in good coincidence with the experimental results with an average error of about 5%, and the calculated porosities are in good consistent with the test results. The distribution of micro pores in DNTF in the solidification process is wide and random, and the solidification condition, undercooling character and dendrite morphology contribute to the formation of micro pores.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:12
Main heading:Undercooling
Controlled terms:
    Microporosity -  Physical chemistry -  Solidification -  Thermal conductivity
Uncontrolled terms:
    DNTF -  Logistic functions -  Melt-cast explosives -  Solidification process -  Solidification temperature
Classification code:
641.1Thermodynamics -  801.4Physical Chemistry -  802.3Chemical Operations -  931.2Physical Properties of Gases, Liquids and Solids
Numerical data indexing:Percentage 5.00e+00%
DOI:10.14077/j.issn.1007-7812.2019.05.011
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


4. ---------------------------------------------------------------
Title:Crystal Structure and Thermal Decomposition Behaviors of 6-(3, 5-Dimethyl-1H- pyrazole)-1, 2, 4, 5-tetrazin-3-one (DPTzO) and Its Guanidine Salt
Accession number:20195007823941
Title of translation:6-(3, 5-二甲基-1H-吡唑)-1, 2, 4, 5-四嗪-3-酮(DPTzO)及其胍盐的晶体结构和热分解行为
Authors:    Zhang, Cong1 ; Chen, Xiang1; Bai, Yang1; Guo, Zhao-Qi1; Ma, Hai-Xia1 
Author affiliation:1 School of Chemical Engineering, Northwest University, Xi'an; 710069, China
Corresponding author:Ma, Hai-Xia (mahx@nwu.edu.cn)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:432-437 and 444
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:6-(3, 5-Dimethyl-1H-pyrazole)-1, 2, 4, 5-tetrazin-3-one (DPTzO) and its guanidine salt (G?DPTzO) were synthesized and characterized by Fourier-transform infrared spectroscopy (FT-IR), elemental analysis (EA), nuclear magnetic resonance(NMR) and single crystal X-ray diffraction. The thermal decomposition behaviors of the two compounds were analyzed by thermogravimetry (TG-DTG) and differential scanning calorimetry (DSC) under non-isothermal conditions and then the thermal decomposition kinetic parameters were calculated by the Kissinger and Ozawa's methods. The crystal parameters are determined as follows: DPTzO, orthorhombic, space group Pna21, a=1.2247(2)nm, b=1.3109(3)nm, c=0.52988(10)nm, α=90°, β=90°, γ=90°, V=0.8507(3)nm, Z=4; G?DPTzO, monoclinic, space group P21/c, a=0.75430(13)nm, b=0.92352(17)nm, c=1.7637(3)nm, α=90°, β=100.754(3)°, γ=90°, V=1.207(4)nm3, Z=4. In G?DPTzO, hydrogen bonds between G+ and the N, O atoms on the DPTzO- group connect the molecules into a two-dimentional structure. The apparent activation energy (E) and pre-exponential constant (A) of the thermal decomposition were determined as 210.60kJ/mol and 1021.2s-1 for DPTzO and 237.77kJ/mol and 1021.0s-1 for G?DPTzO, respectively. The self-accelerating decomposition temperature (TSADT), the thermal ignition temperature (Tbe) and the critical thermal explosion temperature (Tbp) are 204.49 and 268.57℃, 202.99 and 260.21℃, 205.80 and 264.35℃, respectively. The intermolecular hydrogen bonds are helpful for enhancing the thermal stability of guanidine salt.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:16
Main heading:Crystal atomic structure
Controlled terms:
    Activation energy -  Complexation -  Crystal structure -  Decomposition -  Differential scanning calorimetry -  Fourier transform infrared spectroscopy -  Hydrogen bonds -  Nuclear magnetic resonance -  Nuclear magnetic resonance spectroscopy -  Physical chemistry -  Polymethyl methacrylates -  Single crystals -  Thermodynamic stability -  Thermogravimetric analysis -  Thermolysis
Uncontrolled terms:
    1, 2, 4, 5-tetrazine -  DPTzO -  High-nitrogen -  Tetrazines -  Thermal behaviors
Classification code:641.1Thermodynamics -  801Chemistry -  801.4Physical Chemistry -  802.2Chemical Reactions -  815.1.1Organic Polymers -  933.1Crystalline Solids -  933.1.1Crystal Lattice -  944.6Temperature Measurements
DOI:10.14077/j.issn.1007-7812.2019.05.002
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


5. ---------------------------------------------------------------
Title:Research Progress on Application of Atomic Layer Deposition in Surface Fabrication of Energetic Materials
Accession number:20195007824371
Title of translation:原子层沉积技术在含能材料表面修饰中的应用研究进展
Authors:    Qin, Li-Jun1, 2 ; Gong, Ting1, 2; Yan, Ning1; Li, Jian-Guo1; Hui, Long-Fei1; Hao, Hai-Xia1, 2; Feng, Hao1, 2 
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
2 Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Feng, Hao (fenghao98@hotmail.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:425-431
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The principles and characteristics of the atomic layer deposition (ALD) technology are briefly described. In comparison with the traditional vapor deposition technologies, ALD boasts its unique capabilities in precise film thickness control, low temperature deposition, large area and three-dimensional uniformity. These features make ALD a promising technology for preparing the energetic composites and fabricating the surfaces of energetic materials. The latest research progresses on the applications of ALD in the preparation and modification of energetic materials are summarized, including synthesis of metastable intermolecular composites (MIC), de-sensitization of metal fuels and explosives, and stability improvement of aluminum, aluminum hydride and ammonium dinitramide (ADN). The importance and prospects of ALD in precise synthesis and surface fabrication of energetic materials are evaluated. With 29 references.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:29
Main heading:Atomic layer deposition
Controlled terms:
    Aluminum compounds -  Atoms -  Explosives -  Fabrication -  Surface properties -  Temperature -  Vapor deposition
Uncontrolled terms:
    Ammonium dinitramide -  Applied chemistry -  Deposition technology -  Low-temperature deposition -  Metastable Intermolecular Composites -  Molecular layer depositions (MLD) -  Stability improvement -  Surface fabrication
Classification code:
641.1Thermodynamics -  813.1Coating Techniques -  931.3Atomic and Molecular Physics -  951Materials Science
DOI:10.14077/j.issn.1007-7812.2019.05.001
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


6. ---------------------------------------------------------------
Title:Adsorption Kinetics and Thermodynamics of ADN on Activated Carbon
Accession number:20195007815535
Title of translation:活性炭吸附ADN过程的动力学与热力学
Authors:    Pan, Yong-Fei1 ; Wang, Ying-Lei1 ; Liu, Wei-Xiao1; Zhao, Bao-Dong1; Chen, Bin1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Wang, Ying-Lei (wangyl204@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:465-472
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The adsorption kinetics and thermodynamic characteristics of ADN on activated carbons were conducted through static adsorption experiments at different temperatures. The adsorption capacity and desorption rate of three kinds of activated carbons(AC, BC, CC) were compared. The adsorption kinetics of ADN were investigated by using quasi-first-order kinetic model, quasi-second-order kinetic model and intra-particle diffusion model, respectively, and the adsorption thermodynamic behavior was described by using Langmuir and Freundlich adsorption isothermal models. The results show that the activated carbon AC is an ideal adsorbent for ADN separation. The kinetic curves of ADN adsorption by three kinds of activated carbons are more in line with the quasi-second-order kinetic model. It is more suitable to describe the adsorption law of ADN on activated carbon AC by using Freundlich model. This adsorption process can be spontaneous for ?G < 0, ?S > 0, and ?H > 0 under different adsorption amounts, which is an endothermic process.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:16
Main heading:Adsorption
Controlled terms:
    Activated carbon -  Desorption -  Kinetic parameters -  Kinetic theory -  Physical chemistry -  Thermodynamics
Uncontrolled terms:
    Adsorption kinetics -  Adsorption thermodynamics -  Ammonium dinitramide -  Desorption rate -  First-order kinetic models -  Intra-particle diffusion -  Langmuir and freundlich adsorption -  Second order kinetics
Classification code:
641.1Thermodynamics -  801.4Physical Chemistry -  802.3Chemical Operations -  804Chemical Products Generally -  931Classical Physics; Quantum Theory; Relativity
DOI:10.14077/j.issn.1007-7812.2019.05.008
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


7. ---------------------------------------------------------------
Title:Preparation and Performances of Molded Combustible Cartridge Cases Modified by NGEC
Accession number:20195007823954
Title of translation:纤维素甘油醚硝酸酯基模压可燃药筒的制备与性能
Authors:    Li, Zhong-Shan1 ; Tian, Shu-Chun1; Zhou, Yi2; Shao, Zi-Qiang2; Zhou, Xiao-Hong1; Yuan, Xiao-Li1; Guo, Bing-Yi1
Author affiliation:1 Xi'an North Huian Chemical Industries Co., Ltd., Xi'an; 710302, China
2 Beijing Institute of Technology, Beijing Engineering Research Center of Cellulose and Its Derivatives, Beijing; 100081, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:521-525 and 530
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To improve the mechanical strength and plasticity of molded combustible cartridge cases, nitric acid ester of cellulose glycidyl ether (NGEC) (nitrogen content 12.3%) was used to replace part of nitrocellulose (NC)(nitrogen 13.0%) or lignocellulose in the formulation, and five combustible cartridge samples were prepared. And their mechanical and combustion performances at room temperature were tested. The results show that by replacing nitrocellulose with mass fraction of 15% and 30% NGEC, the tensile strength of combustible cartridge case increase by 33.8% and 35.2%, the fracture elongation decrease by 32.2% and 24.7%, the powder force drop by 3.2% and 10.7%, and the total burning time reduce by 59.8% and 56.8%, respectively. By replacing lignocellulose with 5% and 8% NGEC, the tensile strength of combustible cartridge case raise by 20.2% and 16.89%, the fracture elongation decrease by 48.1% and 47.2%, the powder force increase by 11.5% and 19.5%, and the total burning time decrease by 75.7% and 79.8%, respectively. Thus, NGEC can offer some degree of improvement to the tensile strength whereas it leads to a decrease of fracture elongation and burning-off time. Meanwhile, the mean combustion activity is raised obviously, and the burning rate is increased.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:17
Main heading:Tensile strength
Controlled terms:
    Cellulose -  Combustion -  Elongation -  Esters -  Ethers -  Fracture -  Lignin -  Nitric acid -  Nitrocellulose -  Nitrogen -  Projectiles
Uncontrolled terms:
    Combustible cartridge case -  Energetic binder -  Glycidyl ethers -  Lignocellulose -  Material science
Classification code:
804Chemical Products Generally -  811.3Cellulose, Lignin and Derivatives -  951Materials Science
Numerical data indexing:Percentage 1.07e+01%, Percentage 1.15e+01%, Percentage 1.23e+01%, Percentage 1.30e+01%, Percentage 1.50e+01%, Percentage 1.69e+01%, Percentage 1.95e+01%, Percentage 2.02e+01%, Percentage 2.47e+01%, Percentage 3.00e+01%, Percentage 3.20e+00%, Percentage 3.22e+01%, Percentage 3.38e+01%, Percentage 3.52e+01%, Percentage 4.72e+01%, Percentage 4.81e+01%, Percentage 5.00e+00%, Percentage 5.68e+01%, Percentage 5.98e+01%, Percentage 7.57e+01%, Percentage 7.98e+01%, Percentage 8.00e+00%
DOI:10.14077/j.issn.1007-7812.2019.05.017
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


8. ---------------------------------------------------------------
Title:Periodic DFT Study on High Pressure Behavior of Nitrogen-rich Energetic Crystal 4-Amino-3, 7-Dinitrotriazolo-[5, 1, c][1, 2, 4] Triazine
Accession number:20195007824372
Title of translation:富氮含能晶体4-氨基-3, 7-二硝基三唑-[5, 1, c][1, 2, 4]三嗪高压行为的密度泛函研究
Authors:    Yang, Dong-Fang1 ; Li, Hui-Li1; Liu, Jin-Jian1; Zhao, Guo-Zheng1 ; Lu, Ming2
Author affiliation:1 School of Chemical and Material Science, Shanxi Normal University, Linfen; Shanxi; 041004, China
2 School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing; 210094, China
Corresponding author:Zhao, Guo-Zheng (zhaoguozheng99@126.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:450-454
Language:English
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The high pressure behavior of nitrogen-rich energetic crystal 4-amino-3, 7-dinitrotriazolo-[5, 1, c][1, 2, 4]triazine (DPX-26) in the hydrostatic pressure range of 0-130 GPa was investigated by employing the GGA/PBE-G06 method of periodic density functional theory (DFT). The changes of crystal structure, molecular structure and electronic structure of DPX-26 with pressure were analyzed by calculating lattice parameters (a, b, c), bond lengths, band gaps (ΔEg) and density of states (DOS). The results show that DPX-26 undergoes three significant structure transitions at 81, 82 and 92GPa. The structural transformation occurs at 81GPa with the destruction of intermolecular six membered rings. At 82GPa, the triazole ring is severely distorted and dissociated with the elongation of C4-N7 bond. As the pressure reaches 92 GPa, the bond length of C4-N7 decreases from 0.2324nm to 0.1333nm, and the triazole ring is formed again. The increase of external pressure leads to the delocalization enhencement of the system.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:14
Main heading:Crystal structure
Controlled terms:
    Bond length -  Density functional theory -  Electronic structure -  Energy gap -  Hydrostatic pressure -  Nitrogen -  Quantum chemistry
Uncontrolled terms:
    Density of state -  DPX-26 -  External pressures -  High-pressure behavior -  Periodic density functional theory -  Six-membered rings -  Structural transformation -  Structure transitions
Classification code:
631.1.1Liquid Dynamics -  801.4Physical Chemistry -  804Chemical Products Generally -  922.1Probability Theory -  933.1.1Crystal Lattice
Numerical data indexing:
Pressure 0.00e+00Pa to 1.30e+11Pa, Pressure 8.10e+10Pa, Pressure 8.20e+10Pa, Pressure 9.20e+10Pa, Size 2.32e-10m to 1.33e-10m
DOI:10.14077/j.issn.1007-7812.2019.05.005
Funding text:
Graduate Innovation Project of Shanxi Normal University, Scientific and Technologial Innovation Programs of Higher Education Institutions in Shanxi (No. 2019L0469); Education Science Planning of Shanxi Province Special Projects of Military Training for Students and National Defense Education for Universities (No. GGF 19002); Cultivation Plan of Young Scientific Researchers in High Education Institutions of Shanxi Province.
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


9. ---------------------------------------------------------------
Title:Study of Aldehyde/allyl-aryloxypolyphosphazene-based Inhibition Materials for Insertion Solid Propellant (I): Synthesis, Vulcanization Characteristics and Mechanical Properties
Accession number:20195007824245
Title of translation:自由装填推进剂用含醛基/烯丙基芳氧基聚磷腈包覆材料研究(Ⅰ):制备, 硫化特性及力学性能
Authors:    Cao, Ji-Ping1 ; Xiao, Xiao1; Wei, Le1; Zhao, Feng-Qi1, 2; Yang, Shi-Shan1 
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
2 Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Yang, Shi-Shan (358240234@qq.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:504-510
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To improve the mechanical properties of aryloxypolyphosphazene-based inhibitor, four aldehyde/allyl-aryloxypolyphosphazenes (PDPP) were synthesized using hexachlorocyclotriphosphzene, phenol, 4-hydroxybenzaldehyde and 2-allylphenol as the starting materials. The polymers were characterized by FT-IR and gel permeation chromatography. The aryloxypolyphazene-based inhibition formulas for inserting charge of solid propellant were prepared via compounding and vulcanization. The vulcanization characteristics were analyzed, and their mechanical properties at +50℃, -40℃ and +20℃ were determined via the static strain test and dynamic mechanical thermal analyses. The results show that, with decreasing the molar ratio of aldehyde to allyl, the glass transition temperature and the tensile strength (+20℃) of the inhibitor increase from -7. 55℃ to -3. 85 ℃ and from 6.19 MPa to 6.92 MPa, respectively, whereas the elongation (+20℃) decreases from 165.35% to 90.95%. The optimum cure time (t90) decreases from 401.3s to 208.4s with decreasing the aldehyde-to-allyl molar ratio, whereas the minimum torque (ML) and maximum torque (MH) increase from 0.069 N?m to 0.373N?m and from 1.451N?m to 2.093 N?m, respectively.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:13
Main heading:Solid propellants
Controlled terms:
    Aldehydes -  Gel permeation chromatography -  Glass transition -  Molar ratio -  Rubber -  Strain -  Tensile strength -  Thermoanalysis -  Vulcanization
Uncontrolled terms:
    4-hydroxybenzaldehyde -  Aryloxypolyphosphazene -  Cure time -  Dynamic mechanical thermal analysis -  Material science -  Maximum torque -  Static strain -  Vulcanization characteristics
Classification code:
524Solid Fuels -  801Chemistry -  802.2Chemical Reactions -  802.3Chemical Operations -  804Chemical Products Generally -  804.1Organic Compounds -  818.1Natural Rubber -  818.3Rubber and Elastomer Processing -  951Materials Science
Numerical data indexing:
Percentage 1.65e+02% to 9.10e+01%, Pressure 6.19e+06Pa to 6.92e+06Pa, Time 4.01e+02s to 2.08e+02s, Torque 1.45e+00N*m to 2.09e+00N*m, Torque 6.90e-02N*m to 3.73e-01N*m
DOI:10.14077/j.issn.1007-7812.2019.05.014
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


10. ---------------------------------------------------------------
Title:Experimental Study on the Thermal Effect of TNT Explosion in Tunnel
Accession number:20195007815865
Title of translation:TNT坑道内爆炸热作用规律的试验研究
Authors:    Zhang, Yu-Lei1 ; Li, Zhi-Rong1; Zhang, Jun-Feng1; Pan, Wen1; Wang, Sheng-Qiang1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:526-530
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To study the thermal effect of TNT charge that explodes in tunnel, two TNT grains with mass of 1kg and 3kg were detonated in long and straight tunnel. By using WRe 5/26 thermocouple, the response temperature histories at different distances from the explosion center were obtained. The regularity of peak temperature and propagation velocity varying with distance was analyzed, and the effects of charge quantity on peak temperature and its lasting time were also discussed. The results show that due to the secondary reaction of explosive products, there is a hysteretic step in the rising process of response temperature. The peak temperature and the propagation velocity of fireball show a trend of "descending-ascending-descending" with the increase of the distance from explosion center. The ascending section is located in the equivalent diameter section of 8-11 times of tunnel diameter. The maximum propagation velocity of explosive fireball for 1kg TNT charge is achieved in the ascending section with value of 24.69m/s, and the minimum speed with value of 4. 88m/s is achieved in the last section. The peak response temperatures of 1kg TNT and 3kg TNT are 406℃ and 575℃, respectively, and the average duration time of response temperature above zero are 2.20s and 3.30s, respectively. Under the experimental conditions, the ratio of the peak temperature and duration time of 1 kg TNT to 3kg TNT at the same position are approximately equal to the ratio of cubic roots of the two charge masses.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:12
Main heading:Explosions
Controlled terms:
    Binary alloys -  Explosives -  Rhenium alloys -  Thermocouples -  Tungsten alloys -  Velocity
Uncontrolled terms:
    Equivalent diameter -  Experimental conditions -  Explosion center -  Explosion mechanics -  Peak temperatures -  Propagation velocities -  Response temperatures -  Secondary reactions
Classification code:
543.5Tungsten and Alloys -  549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals -  944.5Temperature Measuring Instruments
Numerical data indexing:Mass 1.00e+00kg, Mass 3.00e+00kg, Time 2.20e+00s, Time 3.30e+00s, Velocity 2.47e+01m/s, Velocity 8.80e+01m/s
DOI:10.14077/j.issn.1007-7812.2019.05.018
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


11. ---------------------------------------------------------------
Title:Preparation of Agglomerated Boron Particles by Extrusion-spheronization Method
Accession number:20195007815526
Title of translation:挤出滚圆造粒法制备团聚硼颗粒
Authors:    Zhang, Huai-Long1 ; Wu, Rui-Qiang2; Xiao, Le-Qin1 ; Zhou, Wei-Liang1; Long, Yi-Qiang3
Author affiliation:1 School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing; 210094, China
2 Shanxi North Xing'an Chemical Industry Co. Ltd., Taiyuan; 030008, China
3 Sichuan Lingang Wuzhou Engineering Design Co. Ltd., Luzhou; Sichuan; 646000, China
Corresponding author:Xiao, Le-Qin (leqinxiao@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:497-503
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To improve the sphericity of agglomerated boron particles and increase the bulk density and production efficiency, the extrusion-spheronization method, which is used to prepare the micro pills in the field of medicine, was utilized to prepare the agglomerated boron particles with the microcrystalline cellulose (MCC), 3, 3-bis (azidomethyl) oxetane and tetrahydrofuran copolyether (PBT) and gycidyl azide polymer (GAP) as binders, respectively. The morphology of the agglomerated boron particles was observed by 3D video microscope, and the particle size and its distribution, bulk density were also investigated. The results show that when using MCC(mass fraction of 17.25%)as the binder and sodium carboxyl methyl cellulose (CMC) (mass fraction of 2.75%)as the surfactant, the premixed material can meet the requirements of the extrusion-spheronozation method, and the particles obtained are nearly spherical. When PBT is used as the binder with the mass fraction higher than 25%, the particles can be prepared and the morphology of the particles are irregular. When GAP is used as the binder with mass fraction of 30%, the premixed material can also meet the process requirements and the particles obtained are nearly spherical. The size distribution of the agglomerated boron particles prepared by the extrusion-spheronization method is narrow and the bulk density is high. The particle size of 90% GAP/B (mass ratio of 30:70) agglomerated boron particles is in the range of 0.2-0.5mm and the bulk density can reach to 1.05g/cm3.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:15
Main heading:Agglomeration
Controlled terms:
    Binders -  Boron -  Cellulose -  Extrusion -  Morphology -  Particle size -  Pelletizing
Uncontrolled terms:
    Applied chemistry -  Boron particle -  Boron powder -  Bulk density -  Extrusion-spheronization
Classification code:
549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals -  802.3Chemical Operations -  803Chemical Agents and Basic Industrial Chemicals -  811.3Cellulose, Lignin and Derivatives -  951Materials Science
Numerical data indexing:Mass_Density 1.05e+03kg/m3, Percentage 1.72e+01%, Percentage 2.50e+01%, Percentage 2.75e+00%, Percentage 3.00e+01%, Size 2.00e-04m to 5.00e-04m
DOI:10.14077/j.issn.1007-7812.2019.05.013
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


12. ---------------------------------------------------------------
Title:Study on the Storage Stability of Propargyl-Terminated Polybutadiene Prepolymer
Accession number:20195007815318
Title of translation:端丙炔基聚丁二烯预聚物的贮存稳定性
Authors:    Gao, Wen-Bo1 ; Li, Yong-Hui1; He, Ji-Yu1; Yang, Rong-Jie1 
Author affiliation:1 School of Materials, Beijing University of Technology, Beijing; 100081, China
Corresponding author:Yang, Rong-Jie (yrj@bit.edu.cn)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:460-464
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:In order to determine the storage stability of propargyl-terminated polybutadiene (PTPB) at room temperature, the storage stability of PTPB at room temperature(15-30℃), 5℃ and -10℃ was investigated by tracking test. The chemical structures and properties of PTPB stored at different temperatures and times were characterized by 13C-NMR, FTIR, TG, GPC and viscosity tests. The PTPB elastomers were prepared from the stored PTPB prepolymer and azido-glycidyl ether (GAP) and the properties of elastomers were characterized by FT-IR, DMA and mechanical tests. The results show that the PTPB stored at room temperature for four months has the same chemical structure and properties as that of PTPB stored at 5℃ and -10℃, no polymerization, cross-linking, oxidation and other reactions have taken place, and the viscosity has not changed. After storing for four months under three different temperatures, the molecular structure, dynamic mechanics performance, mechanics performance at room temperature of PTPB elastomers made from stored PTPB are also consistent. Therefore, PTPB can be stored stably at room temperature.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:9
Main heading:Stability
Controlled terms:
    Chemical analysis -  Crosslinking -  Elastomers -  Monomers -  Plastics -  Polybutadienes -  Structure (composition) -  Viscosity
Uncontrolled terms:
    Glycidyl ethers -  Mechanics performance -  Propargyl -  PTPB -  Storage stability -  Structure and properties -  Structures and properties -  Viscosity tests
Classification code:
631.1Fluid Flow, General -  802.2Chemical Reactions -  804Chemical Products Generally -  815.1.1Organic Polymers -  817.1Polymer Products -  818.2Elastomers -  951Materials Science
DOI:10.14077/j.issn.1007-7812.2019.05.007
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


13. ---------------------------------------------------------------
Title:Formation Characteristics of Trumpet-shaped Liner with Large Cone Angle Based on Explosively Formed Penetrator(EFP)
Accession number:20195007815328
Title of translation:基于爆炸成型弹丸(EFP)的大锥角喇叭罩成型规律
Authors:    Wang, Ya-Jun1 ; Li, Wei-Bing1 ; Li, Wen-Bin1; Wang, Xiao-Ming1; Wang, Gui-Lin2
Author affiliation:1 Key Defense Laboratory of Intelligent Munitions, Nanjing University of Science and Technology, Nanjing; 210094, China
2 Chongqing Hongyu Precision Industrial Co. Ltd., Chongqing; 402760, China
Corresponding author:Li, Wei-Bing (njustlwb@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:490-496 and 503
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To further improve the liner structure applicable to explosively formed penetrator (EFP), the trumpet-shaped liner with large cone angle was proposed based on the arc-cone liner structure. On the basis of structural features of liner, the difference in collapse process for the trumpet-shaped liner with large cone angle with the traditional arc-cone liner and hemispherical liner was analyzed. The influencing pattern of trumpet-shaped liner structural features (virtual height, trumpet curvature, arc curvature, and thickness of liner) on formation parameters of tip velocity, length and compactness, were calculated by LS-DYNA simulation software. The results show that the thickness of trumpet-shaped liner directly influences EFP tip velocity, and virtual height and arc-section curvature of trumpet-shaped liner squarely influences length and compactness of EFP, while tip formation of EFP is determined by the curvature of trumpet-section liner. Compared with conventional arc-and-cone-shaped liner and sphere-segment-shaped liner, the EFP formed by trumpet-shaped liner with large cone angle has certain advantages in tip velocity, length, length-diameter ratio and compactness, which can increase the compactness of penetrator by 1-3. 5 times. it can produce more desirable compact EFP on the condition of virtual liner height equals to 0.14 to 0.16 times shaped charge diameter, trumpet-section curvature equals to more than 1.5 times shaped charge diameter, arc-section curvature equals to 0.4 to 0.8 times shaped charge diameter, and liner thickness equals to 0.04 to 0.045 times shaped charge diameter.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:17
Main heading:Structure (composition)
Controlled terms:
    Computer software -  Shaped charges
Uncontrolled terms:
    Compactness -  Cone angle -  Explosion mechanics -  Explosively formed penetrator -  Liner
Classification code:
723Computer Software, Data Handling and Applications -  951Materials Science
DOI:10.14077/j.issn.1007-7812.2019.05.012
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


14. ---------------------------------------------------------------
Title:Solubility and Crystallization of FOX-7 in DMSO-H2O, DMSO-EtOH and DMSO-ACE Binary Mixed Solvents
Accession number:20195007816439
Title of translation:FOX-7在DMSO-H2O, DMSO-EtOH, DMSO-ACE二元混合体系中的溶解度及结晶
Authors:    Zhao, Xin-Hua1 ; Cao, Duan-Lin1 ; Wang, Jian-Long1; Chen, Li-Zhen1; Zhang, Yue-Yang1; Zhou, Cheng2
Author affiliation:1 School of Chemical Engineering and Technology, North University of China, Taiyuan; 030051, China
2 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Cao, Duan-Lin (cdl@nuc.edu.cn)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:473-479 and 489
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The solubility of 1, 1-diamino-2, 2-dinitroethylene (FOX-7) in four pure solvents (DMSO, H2O, EtOH, ACE) and three binary mixed solvents ( DMSO-H2O, DMSO-EtOH, DMSO-ACE) were determined by using a laser dynamic monitoring technique. The Apelblat model, Yaws model and van't Hoff model were adopted to correlate the experimental solubility data. FOX-7 was recrystallized by solvent-nonsolvent method with DMSO as solvent while H2O, EtOH and ACE as non-solvent and its morphology was observed by electron microscopy. The results show that the solubility of FOX-7 in pure solvent increases with increasing the temperature, and the solubility in mixed solvent increases with increasing the temperature and DMSO content. At the condition of same temperature and same volume ratio for the three binary mixed solvents, the solubility of FOX-7 in DMSO-H2O is the minimum, while in DMSO-ACE is maximum. The correlation coefficients(R2) of the three correlation equations are greater than 0.96, so the three correlation equations can be adopted to correlate the solubility data. The crystals crystallized in the DMSO/ACE (volume ratio of 2:1) system were observed by an electron microscope with the uniform and spherical morphology, and no agglomeration occurred.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:21
Main heading:Solvents
Controlled terms:
    Electron microscopes -  Ethanol -  Morphology -  Physical chemistry -  Solubility -  Temperature -  Thermodynamics
Uncontrolled terms:
    1, 1-di amino-2, 2-dinitroethylene (FOX-7) -  Cooling crystallization -  Correlation coefficient -  Correlation equation -  Experimental solubility datum -  Laser dynamics -  Spherical morphologies -  Van't Hoff modeling
Classification code:
641.1Thermodynamics -  801.4Physical Chemistry -  803Chemical Agents and Basic Industrial Chemicals -  804.1Organic Compounds -  951Materials Science
DOI:10.14077/j.issn.1007-7812.2019.05.009
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


15. ---------------------------------------------------------------
Title:Synthesis, Thermal Behavior and Energy Characteristics of Insensitive High Energetic Ionic Salts of HDNMT and ADNMT
Accession number:20195007815353
Title of translation:高能不敏感离子盐HDNMT和ADNMT的合成, 热行为与能量特性
Authors:    Huo, Huan1 ; Guo, Tao1; Wang, Zi-Jun1; Bi, Fu-Qiang1, 2; Wang, Bo-Zhou1, 2 
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
2 State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an; 710065, China
Corresponding author:Wang, Bo-Zhou (wbz600@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:445-449
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:Using 1-hydrazinyl-2, 2-dinitroethenamine and ethyl 3-ethoxy-3- iminopropanoate hydrochloride as primary materials, two kinds of insensitive energetic ionic salts, mono-hydrazinium 3, 5-bis(dinitromethyl)-1, 2, 4-triazolate(HDNMT) and mono-ammonium 3, 5-bis(dinitromethyl)-1, 2, 4-triazolate (ADNMT), were synthesized via the reactions of cyclization, nitration and alkali-hydrolysis. Their structures were characterized by FT-IR, 1H NMR, 13C NMR and elemental analysis. The thermal behaviors of HDNMT and ADNMT were studied by DSC and TG-DTG. The energy characteristics of modified double-base (CMDB) propellant containing HDNMT and ADNMT were calculated by NASA-CEA software under the standard condition(pc:po=70:1). The results show that the structures of the two synthesized ionic salts are consistent with the prospective structures and the yield of HDNMT and ADNMT are 41.3% and 47.6%, respectively. The peak temperatures of the exothermic decomposition reaction are 193.3 and 147.0℃, respectively. The theoretical specific impulse (Isp) of CMDB propellant containing the two ionic salts are 2602.8 and 2584.4 N?s/kg, and the characteristic velocity (C*) are 1603 and 1590 m/s, respectively, showing that the two ionic salts have great application prospects in the field of solid propellant.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:13
Main heading:Salts
Controlled terms:
    NASA -  Solid propellants
Uncontrolled terms:
    ADNMT -  Energy characteristics -  HDNMT -  Ionic salts -  Organic Chemistry
Classification code:
524Solid Fuels -  804Chemical Products Generally
Numerical data indexing:Percentage 4.13e+01%, Percentage 4.76e+01%, Velocity 1.59e+03m/s, Velocity 1.60e+03m/s
DOI:10.14077/j.issn.1007-7812.2019.05.004
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


16. ---------------------------------------------------------------
Title:Synthesis, Structure and Properties of 3-Methoxyl-6-nitramine -1, 2, 4, 5-tetrazylated Urea
Accession number:20195007821870
Title of translation:3-甲氧基-6-硝胺基-1, 2, 4, 5-四嗪化脲的制备, 结构与性能研究
Authors:    Ren, Jie1 ; Zhang, Tian-He1; Li, Zhi-Min1; Wang, Lin1; Zhang, Tong-Lai1 
Author affiliation:1 State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing; 100081, China
Corresponding author:Zhang, Tong-Lai (ztlbit@bit.edu.cn)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:438-444
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:3-Methoxy-6-nitroamino-1, 2, 4, 5-tetrazylated urea was prepared by the reaction of 3, 6-dinitroamino-1, 2, 4, 5-tetrazine (DNAT) and urea. Its structure was characterized by infrared spectroscopy, elemental analysis and nuclear magnetic resonance. The crystal structure was determined by X-ray single crystal diffraction, and the thermal properties were tested by differential scanning calorimetry (DSC), thermogravimetry-differential thermogravimetry (TG-DTG) and oxygen bombs. The impact and friction sensitivities were tested. The thermal decomposition kinetic parameters were calculated by Ozawa method and Kissinger method. Meanwhile, the critical temperature of thermal explosion was calculated by non-isothermal kinetic method. The results show that the crystal of the compound belongs to the monoclinic system, the P21/n space group, the crystal density is 1. 640 g/cm3, and each unit cell contains four 3-methoxy-6-nitroamino-1, 2, 4, 5-tetrazylated urea molecules. The unit cell parameters are: a=0.71799(14)nm, b=1.8109(4)nm, c=0.95761(19)nm, β=108.02(3)°, V=1. 1840(4) nm3. The exothermic peak temperature of the compound is 147.7℃, and the formation enthalpy is -1142.63kJ/mol. The compound has an impact sensitivity (H50) of 13 cm and is insensitive to frictional stimuli, which can be considered as a potential energetic compound.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:26
Main heading:Crystal structure
Controlled terms:
    Decomposition -  Differential scanning calorimetry -  Friction -  Infrared spectroscopy -  Metabolism -  Nuclear magnetic resonance spectroscopy -  Single crystals -  Thermogravimetric analysis -  Urea
Uncontrolled terms:
    Differential thermogravimetry -  Exothermic peak temperature -  High-nitrogen -  Organic Chemistry -  Structure and properties -  Tetrazines -  Thermal decomposition kinetics -  X-ray single-crystal diffraction
Classification code:
801Chemistry -  802.2Chemical Reactions -  804.1Organic Compounds -  933.1Crystalline Solids -  933.1.1Crystal Lattice -  944.6Temperature Measurements
Numerical data indexing:Mass_Density 6.40e+05kg/m3, Size 1.30e-01m
DOI:10.14077/j.issn.1007-7812.2019.05.003
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


17. ---------------------------------------------------------------
Title:Preparation and Characterization of Emulsion Matrix with Low Temperature Resistance
Accession number:20195007823943
Title of translation:耐低温乳胶基质的制备与性能测试
Authors:    Qi, Xiu-Fang1 ; Wang, Jie1; He, Jun-Rong2; Chen, Li-He1; Tang, Jie1
Author affiliation:1 School of National Defense Science and Technology, Southwest University of Science & Technology, Mianyang; Sichuan; 621010, China
2 Yahua Group Santai Chemical Co., Ltd., Mianyang; Sichuan; 621103, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:480-484
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To improve the storage and application performance of emulsion explosives in the severe cold area, the storage stability of latex matrix of emulsion explosive at low temperature was explored based on formulation optimization. The effects of water content, polymer emulsifier content and kinds of antifreeze agents on the low temperature resistance of latex matrix were investigated, and the best formula of latex matrix was obtained. The detonation velocity, sympathetic detonation distance and brisance of the emulsion explosive prepared by the best emulsion matrix formula after storing at -32℃ were tested according to the National Standard Explosive Test Methods, respectively. The results show that the antifreeze performance of the latex matrix is the best when water content is 12%, polymer emulsifier content is 1% and 0.25%(mass fraction) of poly(propylene glycol) as antifreeze agent. After freezing at -32℃ for 30d, the crystallization rate is 35.37%, and the emulsion matrix is still not completely metamorphosed. The explosion properties of the emulsion explosive sensitized by resin microspheres after storing at -32℃ for 15d have little change with the detonation velocity decreases from 4439m/s at normal temperature to 4399m/s, the sympathetic detonation distance is 80mm and the brisance decreases from 18. 48mm to 17.75mm; but the failure of explosion occures after storing for 20d.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:20
Main heading:Emulsification
Controlled terms:
    Crystallization kinetics -  Detonation -  Glycols -  Matrix algebra -  Physical chemistry -  Polyols -  Propylene -  Temperature -  Temperature control -  Testing
Uncontrolled terms:
    Application performance -  Crystallization rates -  Emulsion explosives -  Formulation optimization -  Low-temperature resistance -  Low-temperature stability -  Poly(propylene glycol) -  Sympathetic detonations
Classification code:
641.1Thermodynamics -  731.3Specific Variables Control -  801.4Physical Chemistry -  802.3Chemical Operations -  804.1Organic Compounds -  921.1Algebra
Numerical data indexing:Percentage 1.00e+00%, Percentage 1.20e+01%, Percentage 3.54e+01%, Size 8.00e-02m, Velocity 4.40e+03m/s, Velocity 4.44e+03m/s
DOI:10.14077/j.issn.1007-7812.2019.05.010
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.


18. ---------------------------------------------------------------
Title:Qualitative and Quantitative Analysis of Organic Impurities in Diethylene Glycol Dinitrate
Accession number:20195007823944
Title of translation:一缩二乙二醇二硝酸酯中有机杂质的定性和定量分析
Authors:    Chen, Shuang1 ; Kang, Ying2; Hu, Yin2; Suo, Zhi-Rong1; Meng, Yu-Fu1; Ning, Yan-Li2 
Author affiliation:1 School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang; Sichuan; 621010, China
2 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Ning, Yan-Li (56125698@qq.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:5
Issue date:October 1, 2019
Publication year:2019
Pages:516-520
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:In order to qualitatively and quantitatively determine the organic impurities in diethylene glycol dinitrate (DEGDN), the gas chromatography-tandem mass spectrometric method was established and organic impurities in DEGDN were qualitatively determined by retrieving the NIST library, comparing with the authentic samples and analyzing formation mechanism of impurities. An external standard method was used to determine the contents of the identified organic impurities. The results show that four organic impurities are detected in DEGDN, impurity 1 is identified as 2-(hydroxymethyl)-1, 3-dioxolane, impurity 3 is identified as decane, impurity 4 is identified as ethylene glycol dinitrate (EGDN), and impurity 2 may be 2-hydroxy-1, 4-dioxane. In the external standard method, the linear relationship between the materials is good, the correlation coefficients are in the range of 0.9995-0.9999, the average recoveries are in the range of 96.72%-103.33% and the relative standard deviations(RSD) are in the range of 0.31%-1.25%, showing that the proposed method has high precision and accuracy and can be used for the determination of the organic impurities in the DEGDN.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:14
Main heading:Impurities
Controlled terms:
    Chemical analysis -  Ethylene -  Ethylene glycol -  Gas chromatography -  Mass spectrometry -  Polyols
Uncontrolled terms:
    Diethylene glycol -  Energetic plasticizer -  External standards -  Gas chromatography-tandem mass spectrometry -  Organic impurities
Classification code:
801Chemistry -  802.3Chemical Operations -  804.1Organic Compounds -  951Materials Science
Numerical data indexing:Percentage 3.10e-01% to 1.25e+00%, Percentage 9.67e+01% to 1.03e+02%
DOI:10.14077/j.issn.1007-7812.2019.05.016
Database:Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.

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