2019年第3期Ei收录情况
发布人:wangwd 发布时间:8/30/2019 6:14:04 PM  浏览次数:1037次
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经检索,本刊2019年第3期所发文章均被Ei收录,具体如下:

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Title: Treatment of Waste Acid from RDX Production by Micro-emulsion Method
Accession number: 20193307303631
Title of translation: 微乳液法处理RDX的生产废酸
Authors: Qi, Xiu-Fang1 ; Chen, Li-He1; Tang, Jie1
Author affiliation: 1 School of National Defense Science and Technology, Southwest University of Science & Technology, Mianyang; Sichuan; 621010, China
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 312-318
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to extract the unstable organic by-products from the waste acid of RDX production by the direct nitrolysis method, micro-emulsions were prepared using n-heptane/n-hexane as oil phase solvent(O), sodium dodecyl benzene sulfonate (SDBS)/ sodium dodecyl sulfate(SDS) as surfactant(S), n-butanol/n-pentanol as cosurfactant(C) and water(W). The waste acid generated after RDX crystallization but not oxidation was extracted with the micro-emulsions. The extracted waste acid was analyzed by high performance liquid chromatography (HPLC). The formaldehyde absorption solution was titrated by NaOH solution. The effects of different micro-emulsion formulations, volume ratio of micro-emulsion to waste acid, extraction times and recycling of micro-emulsion and other factors on the extraction efficiency of waste acid with micro-emulsion were investigated. The results show that the extraction efficiency and recycling of prepared micro-emulsion is the best when the mass ratio of O:S:C:W is 13:2:8:1. When the volume ratio of micro-emulsion to waste acid is 5:1, about 95% of the unstable by-products in waste acid can be removed at one time. The micro-emulsion can be recycled for 4 times after the extraction being heated and decomposed, and the extracted acid remains stable at 70℃.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 12
Main heading: Waste treatment
Controlled terms: Efficiency - Emulsification - Extraction - Heptane - High performance liquid chromatography - Ostwald ripening - Recycling - Sodium dodecyl sulfate - Sodium hydroxide - Sulfur compounds
Uncontrolled terms: Applied chemistry - Co-surfactants - Direct nitrolysis method - Extraction efficiencies - Micro-emulsion methods - Organic byproducts - Sodium dodecylbenzene sulfonate - Waste acids
Classification code: 452.3Industrial Wastes - 452.4Industrial Wastes Treatment and Disposal - 802.3Chemical Operations - 803Chemical Agents and Basic Industrial Chemicals - 804Chemical Products Generally - 804.1Organic Compounds - 913.1Production Engineering
Numerical data indexing: Percentage 9.50e+01%
DOI: 10.14077/j.issn.1007-7812.2019.03.018
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Effect of Aluminum on FOX-7 Structure
Accession number: 20193307303562
Authors: Türker, Lemi1
Author affiliation: 1 Middle East Technical University, Department of Chemistry üniversiteler, Eskisehir Yolu No.1, Ankara; 06800, Turkey
Corresponding author: Türker, Lemi (lturker@metu.edu.tr)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 223-231
Language: English
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: The effect of aluminum on FOX-7 structure was considered. Density functional approach at the level of unrestricted B3LYP/6-311++G(d, p) level was adopted. The model considered 1-4 aluminum atoms per FOX-7 molecule. The results show that the molecular geometries as well as many molecular orbital characteristics of FOX-7 molecule are subjected multiplicity of the composites, FOX-7 +nAl (n=1-4). In the case of n=1-2, some conformational changes occur. In the presence of three aluminum atoms, the quartet state of the composite is stable but in the doublet state, one of the N-O bonds ruptures. As for the n=4 case the singlet and triplet states are stable but in the quintet state one of the N-O bonds cleaves. As the number of aluminum atoms increases, the HOMO-LUMO energy gap decreases generally.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 62
Main heading: Aluminum
Controlled terms: Atoms - Explosives - Molecular orbitals - Molecules
Uncontrolled terms: 1, 1-diamino-2, 2-dinitroethylene - Conformational change - DADNE - Density-functional approach - FOX-7 - HOMO-LUMO energy gap - Orbital characteristics - Singlet and triplet state
Classification code: 541.1Aluminum - 931.3Atomic and Molecular Physics
DOI: 10.14077/j.issn.1007-7812.2019.03.002
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Cluster Behavior of Tetrazole Ring under Laser Ablation
Accession number: 20193307303621
Title of translation: 激光溅射下四唑环的簇合行为
Authors: Ding, Ke-Wei1, 2 ; Li, Tao-Qi1; Xu, Hong-Guang3; Liu, Qian1; Qu, Chen-Xi1; Zheng, Wei-Jun3; Ge, Zhong-Xue1, 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
3 Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Science, Beijing; 100190, China
Corresponding author: Ge, Zhong-Xue (gzx204@sina.com)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 247-250
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: To understand the decomposition and cluster behavior of tetrazole ring under laser ablation, tetrazole, 5-aminotetrazole, the mixture of tetrazole and zirconium nitride, vanadium, chromium were ablated by nanosecond laser with N2 as carrier gas, and the products were analyzed by reflection time-of-flight mass spectrometer. The results show that the skeleton of tetrazole and 5-aminotetrazole basically remains intact under laser ablation, and they tend to convert to high-abundance anions by losing one hydrogen atom and these anions associate further with 1-3 tetrazoles and 5-aminotetrazole molecules to form corresponding clusters. In the presence of ZrN, V and Cr, tetrazole cation and clusters with no more than 2 tetrazoles are formed, and positive ion mass spectrum cannot find these transition metals participating in the formation of tetrazole clusters. It is found that evaporation is identified to occur in laser ablation of nitrogen-rich compounds, and laser ablation can be used to characterize nitrogen-rich compounds and study their interaction characteristics.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 19
Main heading: Laser ablation
Controlled terms: Ablation - Atom lasers - Atoms - Mass spectrometers - Mass spectrometry - Negative ions - Organic lasers - Positive ions - Transition metals - Zirconium compounds
Uncontrolled terms: Cluster behavior - Clusters - Energetic compounds - Organic Chemistry - Tetrazoles
Classification code: 531Metallurgy and Metallography - 641.2Heat Transfer - 744.1Lasers, General - 801Chemistry - 931.3Atomic and Molecular Physics
DOI: 10.14077/j.issn.1007-7812.2019.03.006
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Effect of Solvent Crystal Surface Adsorption Energy on the Performance of Ultrafine HMX
Accession number: 20193307303595
Title of translation: 溶剂晶面吸附结合能对超细HMX性能的影响
Authors: Hou, Cong-Hua1 ; Li, Cong-Cong1; Zhang, Shi-Min1; Jia, Xin-Lei1; Guo, Chen1; Zhang, Yuan-Ping1
Author affiliation: 1 School of Environment and Safety Engineering, North University of China, Taiyuan; 030051, China
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 262-267
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to explore the effect of solvent on the recrystallization process of HMX and analyze its reaction mechanism, the submicron HMX with different morphologies was prepared by spray recrystallization refining device with water as anti-solvent, propylene carbonate (PC) and dimethyl sulfoxide (DMSO) as solvents. The forming mechanism of HMX with different morphologies was analyzed by molecular dynamics (MD)simulation. The prepared submicron HMX was characterized by scanning electron microscopy (SEM), X-ray powder diffraction (P-XRD) and differential scanning calorimetry (DSC), and its impact sensitivity was tested. The results show that the adsorption binding energy of PC solvents to HMX crystal surface is much less than that of DMSO/HMX system. When PC as solvent, HMX refined by jet spray recrystallization is honeycomb-like, and HMX particles refined by DMSO as solvent is spherical or short rod-like. The binding energy of solvents is negatively correlated with the growth rate of crystal surface. The difference of binding energy between solvents and crystal surface causes the change of crystal growth morphology. Compared with raw HMX, the apparent activation energies of HMX prepared with PC and DMSO as solvents decrease by 31.26kJ/mol and 55.73kJ/mol, respectively, and the pre-exponential factors decrease significantly. The characteristic drop height increase from 35.65cm to 70.50cm and 62.83cm, respectively, and the impact sensitivity decrease significantly, indicating that the safety performance of HMX is effectively improved.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 18
Main heading: Growth rate
Controlled terms: Activation energy - Binding energy - Differential scanning calorimetry - Dimethyl sulfoxide - HMX - Molecular dynamics - Morphology - Organic solvents - Physical chemistry - Reaction kinetics - Recrystallization (metallurgy) - Scanning electron microscopy - Thermoanalysis - X ray powder diffraction
Uncontrolled terms: Apparent activation energy - Crystal growth morphology - Dimethyl sulfoxide (DMSO) - Impact sensitivities - Molecular dynamics simulations - Preexponential factor - Propylene carbonate - Recrystallization process
Classification code: 531.1Metallurgy - 801Chemistry - 801.4Physical Chemistry - 802.2Chemical Reactions - 804Chemical Products Generally - 804.1Organic Compounds - 944.6Temperature Measurements - 951Materials Science
Numerical data indexing: Size 3.56e-01m to 7.05e-01m, Size 6.28e-01m
DOI: 10.14077/j.issn.1007-7812.2019.03.009
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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5.
Title: Desensitization of AP Coated with TATB
Accession number: 20193307303551
Title of translation: TATB对AP的包覆降感
Authors: Zhang, Zhe1 ; Lei, Hong-Bing2; Hao, Ga-Zi1 ; Li, Qiang2; Zhao, Liu-Ming1; Li, Bo1; Li, Dong-Nan1; Jiang, Wei1
Author affiliation: 1 National Special Superfine Powder Engineering Research Center of China, 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
Corresponding author: Hao, Ga-Zi (hgznjust1989@163.com)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 284-288
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: To decrease the mechnical sensitivity of AP, the TATB/AP shell-core composite particles were successfully prepared by mechanical compounding method using nano-TATB(particle size of 200nm) to coat AP with average particle size of 155μm and 10μm. The morphology of the prepared composite particles was characterized by SEM, and the hygroscopicity, impact and friction sensitivities were also tested. The effects of TATB dosage, average particle size of AP, drying mode(drying at 50℃, naturally air dry, vacuum filtration) on the sensitivity of TATB/AP composite particles were investigated. The results show that for 155μm AP, the higher the TATB dosage is, the lower the sensitivity of the composite particles is with other conditions unchanged. Nano-TATB has an optimum coating effect on the 155μm AP when its mass fraction is 15%, which decreases the friction sensitivity from 100% to 0, raises H50 from 31.1cm to 43.4cm, and reduces the hygroscopicity by 80%. Nano-TATB has no obvious effect on the desensitization of AP with an average particle size of 10μm, on the contrary, even makes the sensitivities increase. In addition, among the three drying methods, TATB/AP composite particles dried by vacuum filtration have the lowest impact and friction sensitivities of 35.8cm and 0, while drying at 50℃ leads to the highest impact and friction sensitivities of 31.3cm and 8%, respectively.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 15
Main heading: Particle size
Controlled terms: Coatings - Composite materials - Drying - Friction - Inorganic compounds
Uncontrolled terms: Ammonium perchlorates - Desensitization - Material science - Mechanical compounding method - TATB
Classification code: 804.2Inorganic Compounds - 813.2Coating Materials - 951Materials Science
Numerical data indexing: Percentage 1.50e+01%, Percentage 8.00e+00%, Percentage 8.00e+01%, Size 1.00e-05m, Size 1.55e-04m, Size 2.00e-07m, Size 3.11e-01m to 4.34e-01m, Size 3.13e-01m, Size 3.58e-01m
DOI: 10.14077/j.issn.1007-7812.2019.03.013
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Solubility, Thermal Property and Sensitivity of 1, 4-Dinitroimidazole
Accession number: 20193307303649
Title of translation: 1, 4-二硝基咪唑的溶解性能, 热性能和感度
Authors: Dong, Hai-Yan1 ; Guo, Rong1; Wu, Bo1; Duan, Xiao-Hui1 ; Pei, Chong-Hua1
Author affiliation: 1 State Key Laboratory of Environment-feriendly Energy Materials, Southwest University of Science and Technology, Mianyang; Sichuan; 621010, China
Corresponding author: Duan, Xiao-Hui (duanxiaohui@swust.edu.cn)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 251-256
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: To obtain the physicochemical properties of 1, 4-dinitroimidazole (1, 4-DNI), the solubility of 1, 4-DNI in four different solvents (acetone, ethyl acetate, methanol and ethanol) was determined by the gravimetric method, which was employed to estimate the standard enthalpy of dissolution, standard entropy of dissolution, and standard Gibbs free energy of dissolution. The crystallization morphologies of 1, 4-DNI in different solvents were investigated. Thermal properties of 1, 4-DNI were studied by differential scanning calorimetry (DSC) and thermogravimetry (TG), and the apparent activation energy was calculated by Kissinger's method. The mechanical sensitivity of 1, 4-DNI was also tested. The results show that the solubility of 1, 4-DNI in four solvents increases with the increase of temperature, and its dissolution is a non-spontaneous and endothermic process. The solubility of 1, 4-DNI is ranked as acetone > ethyl acetate > methanol > ethanol. The quality, yield and purity of 1, 4-DNI crystal obtained by cooling in acetone and ethyl acetate are higher than those in methanol and ethanol. When the heating rate is 10K/min, the melting temperature and decomposition peak temperature of 1, 4-DNI are 95.0℃ and 167.6℃, respectively. The temperature change range of TG is 134.7-340.8℃ with the total mass loss rate of 94%, and the apparent activation energy is 119.26kJ/mol. The impact sensitivity of 1, 4-DNI determined experimentally is more than 20J and its friction sensitivity is 60N.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 27
Main heading: Organic solvents
Controlled terms: Acetone - Activation energy - Differential scanning calorimetry - Dissolution - Ethanol - Free energy - Gibbs free energy - Methanol - Physical chemistry - Physicochemical properties - Solubility - Thermodynamic properties - Thermogravimetric analysis
Uncontrolled terms: 1, 4-dinitroimidazole(1, 4-DNI) - Apparent activation energy - Crystallization morphology - Friction sensitivities - Gravimetric methods - Mechanical sensitivity - Nitroimidazoles - Sensitivity
Classification code: 641.1Thermodynamics - 801Chemistry - 801.4Physical Chemistry - 802.3Chemical Operations - 804.1Organic Compounds - 944.6Temperature Measurements
Numerical data indexing: Energy 2.00e+01J, Force 6.00e+01N, Percentage 9.40e+01%
DOI: 10.14077/j.issn.1007-7812.2019.03.007
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
Full text


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Title: Preparation and Compression Performance Test of Explosive-loaded Buffer Materialsx
Accession number: 20193307303623
Title of translation: 炸药装药用缓冲材料的制备和压缩性能测试
Authors: Chen, Chun-Yan1 ; Sun, Pei-Pei1; Yu, Ran1; Nan, Hai1; Wang, Xiao-Feng1
Author affiliation: 1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author: Wang, Xiao-Feng (wangxf_204@163.com)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 274-277
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: To reduce the mechanical damage of the explosive charge expansion force to the end cover of the projectile body, a porous buffer material was successfully prepared by using HTPB as binder, TDI as curing agent and T-12 as catalyst. The effect of curing temperature on the foaming characteristics of HTPB and the internal structure and compression ratio of buffer material was studied by mechanical testing machine and SEM. The results show that the curing temperature has a great influence on the foaming volume of HTPB. In the range of 30 to 70℃, the foaming volume increases from 0.12cm3 to 0.56 cm3 with the increase of curing temperature, and the foaming volume decreases from 0.56cm3 to 0.45 cm3 when curing at 90℃. The compression ratio reaches a maximum of 65% at 70℃. According to the internal structure and compression ratio of buffer material at different temperatures, the curing temperature is determined to be 70℃ with uniform pore diameter and maximum compression ratio.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 12
Main heading: Curing
Controlled terms: Compression ratio (machinery) - Explosives - Mechanical testing
Uncontrolled terms: Buffer materials - Compression performance - Curing temperature - HTPB - Internal structure - Material science - Mechanical damages - Mechanical testing machines
Classification code: 802.2Chemical Reactions - 943.2Mechanical Variables Measurements
Numerical data indexing: Percentage 6.50e+01%, Volume 1.20e-07m3 to 5.60e-07m3, Volume 5.60e-07m3 to 4.50e-07m3
DOI: 10.14077/j.issn.1007-7812.2019.03.011
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Effect of Nitrocellulose with Different Nitrogen Content on the Mechanical Properties of Gun Propellants
Accession number: 20193307303614
Title of translation: 硝化纤维素含氮量对发射药力学性能的影响
Authors: Hu, Xiang-Ming1 ; Huang, Zhen-Ya1 ; Xie, De-Fu1; Song, Ya-Ping1
Author affiliation: 1 School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing; 210094, China
Corresponding author: Huang, Zhen-Ya (hzy331@sohu.com)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 308-311 and 318
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to study the influence of nitrocellulose(NC) with various nitrogen content on the mechanical properties of gun propellants, three types of homogeneous gun propellants were prepared using NC with nitrogen content of 12.5%, 12.8% and 13.0% as continuous phase. Based on these basic formulations, another three kinds of heterogeneous gun propellants containing RDX were fabricated. Simply supported beam pendulum impact test was used to evaluate the impact strength and drop hammer impact test combined with closed-bomb test were adopted to evaluate the impact strength. The results show that the effect of nitrogen content of NC on the mechanical properties of the gun propellants is related to initial temperatures. For heterogeneous gun propellant at 0℃, the impact strength tested by simply supported beam test and the fragmentation at 95cm drop height of samples with NC nitrogen content of 13.0% are 32.79kJ/m2 and 1.000, respectively, and for samples with nitrogen content of 12.50%, the test results were 30.97kJ/m2 and 0.980. Under the lower temperature of -40℃, the impact strength and breaking degree were 7.12kJ/m2, 2.798 with nitrogen content of 13.0%, and 9.27kJ/m2, 1.101 with nitrogen content of 12.50%, showing that the impact strength of gun propellants tested by simply supported beam and drop hammer was significantly reduced with the increase of the nitrogen content of NC.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 9
Main heading: Impact strength
Controlled terms: Degrees of freedom (mechanics) - Drops - Hammers - Mechanical properties - Nitrocellulose - Nitrogen - Pendulums - Propellants
Uncontrolled terms: Explosion mechanics - Fragmentation - Gun propellants - Nitrogen content - Simply supported beams
Classification code: 605.2Small Tools, Unpowered - 804Chemical Products Generally - 811.3Cellulose, Lignin and Derivatives - 931.1Mechanics
Numerical data indexing: Percentage 1.25e+01%, Percentage 1.28e+01%, Percentage 1.30e+01%, Size 9.50e-01m
DOI: 10.14077/j.issn.1007-7812.2019.03.017
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Testing Technology for Burning Rate in Bore of Gun Propellant Based on Multi-points Pressure Measurement System
Accession number: 20193307303589
Title of translation: 基于多点压力测试系统的发射药膛内燃速测试技术
Authors: Zhao, Yu-Hua1 ; Yan, Guang-Hu1; Zhang, Yu-Cheng1; Liang, Lei1; Liu, Yi1; Yan, Wen-Rong1; Xiao, Xia1
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: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 303-307
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: To study the combustion performance of gun propellant in bore, a dynamic burning rate measurement system of gun propellant in bore based on multi-points pressure synchronous measurement technology was established. The experimental investigation on the dynamic combustion performance of camphor-5/7 single-base gun propellant were carried out using this system on HPD-30 artillery. The testing results were compared with the burning rate in bore measured by microwave interference method. The effect of dynamic burning rate equation parameters' fitting method on the calculation precision of burning rate curve in bore was analyzed. The results show that the maximum and minimum deviations for measurement results of the burning rate of camphor-5/7 single-base gun propellant in bore obtained by the multi-points pressure testing method and the microwave interference method are 12% and 2% respectively in the range of 50-100MPa. The difference of burning rate in bore is about 0.45cm/s at the point of the maximum deviation. In the pressure range of 100-320MPa, the maximum deviation of the burning rate of gun propellant in bore obtained by two methods is 1.7%. The comparative analysis of the parallel test results show that the testing method of burning rate of gun propellant in bore based on the multi-points pressure test has higher precision and stability. Because the surface of camphor-5/7 single-base gun propellant is insensitive to form heterogeneousness of inner and outer layers, the burning rate equation of camphor-5/7 single-base gun propellant needs to be expressed by piecewise function to more accurately reflect the combustion law in bore.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 11
Main heading: Propellants
Controlled terms: Camphor - Combustion - Curve fitting - Physical chemistry - Testing
Uncontrolled terms: Burning rate - Combustion performance - Experimental investigations - Gun propellants - Microwave interferometer - Multi-points - Pressure measurement system - Synchronous measurements
Classification code: 801.4Physical Chemistry - 804Chemical Products Generally - 921.6Numerical Methods
Numerical data indexing: Percentage 1.20e+01%, Percentage 1.70e+00%, Percentage 2.00e+00%, Pressure 1.00e+08Pa to 3.20e+08Pa, Pressure 5.00e+07Pa to 1.00e+08Pa, Velocity 4.50e-03m/s
DOI: 10.14077/j.issn.1007-7812.2019.03.016
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Measurement of High-pressure Dynamic Burning Rate and Pressure Exponent of Solid Propellants by Impulse Method
Accession number: 20193307303539
Title of translation: 冲量法测试固体推进剂高压动态燃速及压强指数
Authors: Wang, Ying-Hong1 ; Liu, Chang-Yi1, 2; Xue, Zhao-Rui1; Zhang, Hao1; Zhu, Qing-Long1
Author affiliation: 1 Science and Technology on Combustion, Internal Flow and Thermo-structure Laboratory, Northwestern Polytechnical University, Xi'an; 710072, China
2 Xi'an Changfeng Institute of Mechanism and Electricity, Xi'an; 710065, China
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 278-283 and 288
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to solve the deficiency of the testing method of burning rate of solid propellant under high pressures, a high-pressure dynamic burning rate test method for solid propellant, impulse burning rate test method, was proposed. In this method, the incremental F-t curve and p-t curve during the motor working process were obtained by increasing surface combustion of solid propellant in the rocket motor. According to the relationship between the impulse generated per unit time and the mass of burned propellant (impulse method), the burning rate values under the corresponding pressure at different time during the whole working process of the motor were calculated and obtained. The burning rate of the conventional propellant SQ-2 in booster was experimentally compared with that measured by impulse method, and the impulse burning rate test method was verified by testing the burning rate of a medium-energy propellant. The results show that the burning rates of propellant SQ-2 measured by impulse method are 12.134mm/s at 10.62MPa, 11.369mm/s at 7.87MPa and 11.258mm/s at 7.63MPa, while those measured by booster method are 12.056, 11.104 and 10.91mm/s under the corresponding pressure. The results obtained by impulse method are slightly higher, with a maximum error of about 3%. The burning rate characteristics of a medium-energy composite propellant measured by impulse method are r=6.46p0.443(p=8-23MPa), r=3.49p0.635(p=23-47MPa). The measurement of burning rate at any pressure point of the solid propellant is realized by a single pressurization experiment.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 11
Main heading: Solid propellants
Controlled terms: Boosters (rocket) - Composite propellants - Impulse testing - Physical chemistry - Rocket engines - Testing
Uncontrolled terms: Burning rate - Impulse methods - Maximum error - Medium energy - Pressure exponents - Surface combustion - Testing method - Working process
Classification code: 524Solid Fuels - 654.2Rocket Engines - 801.4Physical Chemistry - 804Chemical Products Generally - 951Materials Science
Numerical data indexing: Percentage 3.00e+00%, Pressure 1.06e+07Pa, Pressure 7.63e+06Pa, Pressure 7.87e+06Pa, Velocity 1.09e-02m/s, Velocity 1.11e-02m/s, Velocity 1.13e-02m/s, Velocity 1.14e-02m/s, Velocity 1.21e-02m/s
DOI: 10.14077/j.issn.1007-7812.2019.03.012
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Macro and Micro Mechanical Properties of NC/DIANP Blend
Accession number: 20193307303596
Title of translation: NC/DIANP共混体系的宏微观力学性能
Authors: Qi, Xiao-Fei1, 2 ; Yan, Ning1; Yan, Qi-Long2; Li, Hong-Yan1; Tang, Zhi-Zhi3; Liu, Pei-Jin2
Author affiliation: 1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
2 Science and Technology on Combustion, Internal Flow and Thermo-structure Laboratory, Northwestern Polytechnical University, Xi'an; 710072, China
3 Army Equipment Department in Shenyang Military Representative Office, Shenyang; 110015, China
Corresponding author: Liu, Pei-Jin (liupj@nwpu.edu.cn)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 268-273
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to explore inherent factors that determine the mechanical properties of nitrocellulose/1, 5-diazido-3-nitrazapentane (NC/DIANP) blend, the dynamic and static mechanical properties of NC/DIANP and nitrocellulose/nitroglycerine (NC/NG) blends were investigated by dynamic mechanical analysis and uniaxial tension test. The models of NC/DIANP and NC/NG blends were built, and the mechanism in change of mechanical properties was further evaluated by using molecular dynamics simulation. The results show that when replacing NC with DIANP, the free volume increases, both hydrogen bond and Van der waals force of NC decrease, and the mobility of NC molecular chains strengthen, which makes the α-transition peak temperature decrease from 75.6 to 53.5℃ and the mechanical loss peak value increase from 0.567 to 0.778, the β-transition peak temperature decrease from -23.7 to -25.0℃ and the mechanical loss peak value increase from 0.126 to 0.127. Meantime, the maximum tensile strength decrease from 15.31, 12.11 and 5.13MPa to 14.24, 10.08 and 1.90MPa with maximum elongation rate increase from 1.78%, 8.08%, 36.01% to 2.91%, 24.56%, 61.51% at -40, 20 and 50℃, respectively.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 19
Main heading: Dynamics
Controlled terms: Blending - Hydrogen bonds - Mechanical properties - Molecular dynamics - Nitrocellulose - Physical chemistry - Tensile strength - Tensile testing - Van der Waals forces
Uncontrolled terms: 1, 5-diazido-3-nitrazapentane (DIANP) - Elongation rates - Micromechanical property - Modified double-base propellant - Molecular chains - Molecular dynamics simulations - Static mechanical properties - Uniaxial tensions
Classification code: 801.4Physical Chemistry - 802.3Chemical Operations - 811.3Cellulose, Lignin and Derivatives - 951Materials Science
Numerical data indexing: Percentage 1.78e+00%, Percentage 2.46e+01%, Percentage 6.15e+01%, Percentage 8.08e+00% to 2.91e+00%, Pressure 1.01e+07Pa, Pressure 1.21e+07Pa, Pressure 1.90e+06Pa, Pressure 5.13e+06Pa
DOI: 10.14077/j.issn.1007-7812.2019.03.010
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Investigation on Continuous Specific Heat Capacities, Thermodynamic Properties and Thermal Decomposition Kinetics of Micro-sized and Nano-sized RDX
Accession number: 20193307303615
Title of translation: 微纳米RDX炸药的连续比热容, 热力学性质和热分解动力学
Authors: Ren, Xiao-Ning1 ; Zhao, Feng-Qi1; Xiao, Li-Bai1; Gao, Hong-Xu1
Author affiliation: 1 Science and Technology on Combustion and Explosion Laboratory, 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: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 257-261
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to analyze the thermal properties of RDX with different particles sizes, the continuous specific heat capacities of micro-sized and nano-sized RDX with particle size of 1μm, 500nm and 100nm were determined by the μSC calorimetry method at the temperature of 288-353K. The specific heat capacity curves were fitted to achieve the equation of Cp, and the thermodynamic properties of RDX with different particle sizes were calculated based on the thermodynamic law. The thermal decomposition behaviors of RDX with different particle sizes were investigated by DSC and their decomposition kinetic paramelers were calculated according to the Kissinger's method. The results show that the μSC calorimetry method is favorable for the measurement of specific heat capacity with simplicity and high accuracy. For the micro-sized RDX particles, the specific heat capacity, entropy and enthalpy increase with the increase in temperature, whereas the Gibbs free energy shows an opposite behavior. Moreover, the enthalpy and Gibbs free energy of RDX reduce with the decrease in particle sizes, but the entropy increases with the decrease in sizes. Compared with the micro-sized RDX, the changes occurred to entropy and Gibbs free energy of nano-sized RDX are relatively small, which is believed to originate from their smaller particle size. Although kinetic parameters of the melting and decomposition processes of micro-sized and nano-sized RDX are different, they all obey the "dynamic compensation effect" rule.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 13
Main heading: Specific heat
Controlled terms: Calorimeters - Calorimetry - Decomposition - Enthalpy - Entropy - Free energy - Gibbs free energy - Kinetics - Particle size - Particle size analysis - Physical chemistry - Thermoanalysis - Thermodynamic properties - Thermolysis
Uncontrolled terms: Decomposition kinetics - Decomposition process - Different particle sizes - Dynamic compensation - Entropy and enthalpies - Nano sized - Thermal decomposition behavior - Thermal decomposition kinetics
Classification code: 641.1Thermodynamics - 801Chemistry - 801.4Physical Chemistry - 802.2Chemical Reactions - 931Classical Physics; Quantum Theory; Relativity - 944.5Temperature Measuring Instruments - 944.6Temperature Measurements - 951Materials Science
Numerical data indexing: Temperature 2.88e+02K to 3.53e+02K, Size 1.00e-06m, Size 1.00e-07m, Size 5.00e-07m
DOI: 10.14077/j.issn.1007-7812.2019.03.008
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Influence of Hexa(2, 4, 6-tribromophenoxy)cyclotriphosphazene on Properties of EPDM inhibitor for Solid Propellant
Accession number: 20193307303591
Title of translation: 六(2, 4, 6-三溴苯氧基)环三磷腈对固体推进剂三元乙丙橡胶包覆层性能的影响
Authors: Li, Jun-Qiang1 ; Xiao, Xiao1; Liu, Qing1; Lu, Xiang-Hui1; Liu, Jian-Li1; Yang, Shi-Shan1
Author affiliation: 1 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: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 289-294
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to improve the comprehensive performance of inhibitor of free-loading solid propellant, ethylene propylene diene monomers EPDM inhibitor with different contents of hexa(2, 4, 6-tribromophenoxy)cyclotriphosphazene (BPCPZ) were prepared. The effects of BPCPZ on the physicochemical properties, curing characteristic parameters, heat- and ablative-resistance and fire-resistance of inhibitor were conducted. The results show that there is no significant change of the scorch time (ts1), whereas the optimum cure time (t90) increases at first and then decreases with increasing the mass fraction of BPCPZ from 0 to 13.55%. The tensile strength (20℃) of inhibitor increased from 3.52MPa to 6.09MPa, whereas the elongation (20℃) decreased from 750.0% to 328.4%. The thermostability and ablation resistance of EPDM inhibitor were improved with increasing the mass fraction of BPCPZ, the linear ablation rate reduces from 0.18mm/s to (0.065-0.143)mm/s and the maximum residual rate at 800℃ increases from 5.24% to 17.5%. The limiting oxygen index is higher than 27 and the inhibitor samples shows high flame retardancy when the mass fraction of BPCPZ is above 3.37%.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 20
Main heading: Solid propellants
Controlled terms: Ablation - Curing - Ethylene - Fire resistance - Heat resistance - Monomers - Physical chemistry - Physicochemical properties - Propylene - Tensile strength
Uncontrolled terms: Ablation rates - BPCPZ - Cyclotriphosphazenes - EPDM - Ethylene propylene diene monomer - Inhibitor
Classification code: 641.2Heat Transfer - 801.4Physical Chemistry - 802.2Chemical Reactions - 804Chemical Products Generally - 804.1Organic Compounds - 914.2Fires and Fire Protection
Numerical data indexing: Percentage 0.00e+00% to 1.36e+01%, Percentage 3.37e+00%, Percentage 5.24e+00% to 1.75e+01%, Percentage 7.50e+02% to 3.28e+02%, Pressure 3.52e+06Pa to 6.09e+06Pa
DOI: 10.14077/j.issn.1007-7812.2019.03.014
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Numerical Simulation on Composite Fragment Field Formation of Expansion EFP Warhead
Accession number: 20193307303630
Title of translation: 展开式EFP战斗部复合破片场成型的数值模拟
Authors: Chen, Chuang1 ; Yang, Li1, 2; Ruan, Ling-Fei1; Xiang, Zhao3
Author affiliation: 1 School of Equipment Engineering, Shenyang Ligong University, Shenyang; 110159, China
2 Chongqing Jianshe Industry (Group) Co., Ltd., Chongqing; 400054, China
3 State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing; 100081, China
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 295-302
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: To realize the controllability of warhead damage power, an EFP warhead with a peripheral grooved casing was proposed, which can expand different angles. Based on ICEM CFD software, the O-type meshing of the expansion warhead was carried out. Autodyn software was used to numerically simulate the forming process of composite fragment field combining EFP with pre-controlled fragment group. The influence law of the center and peripheral charge mass, peripheral charge initiation mode and expansion angle on the forming characteristics of the composite fragments field was obtained, and the effectiveness of the numerical simulation method was verified by X-ray test. The results show that with the increase of the center charge radius, the velocity and length-to-diameter ratio of EFP increase gradually, the fracture phenomenon becomes more and more obvious, while the scattering velocity of the pre-controlled fragment decreases gradually. The fragment velocity formed by the four points initiation mode at the top of peripheral charge is higher than the fragment velocity under twenty points initiation mode at the top and the twenty points initiation modes at inside. The maximum velocity of pre-controlled fragments at closure and expansion state occurs at about 60% and 33% from the detonation side, respectively, and with the increase of expansion angle, the pre-control fragment velocity away from the detonation side is gradually reduced. Compared with the closure state, the EFP penetration depth is reduced by 36% and the aperture is increased by 38% when the expansion angle is 75°. When the center charge radius is selected as 20mm and the expansion angle is 45°-60°, the convergence of the composite fragments field is more obvious, and the molding control effect is better.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 12
Main heading: Velocity
Controlled terms: Detonation - Explosive forming - Numerical methods - Numerical models
Uncontrolled terms: Composite fragments - Expansion angles - Explosion mechanics - Fragment velocity - Length to diameter ratio - Maximum velocity - Numerical simulation method - Pre-controlled fragment
Classification code: 535.2.2Metal Forming Practice - 921Mathematics - 921.6Numerical Methods
Numerical data indexing: Percentage 3.30e+01%, Percentage 3.60e+01%, Percentage 3.80e+01%, Percentage 6.00e+01%, Size 2.00e-02m
DOI: 10.14077/j.issn.1007-7812.2019.03.015
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Synthesis, Refinement and Thermal Analysis of 3, 3'-Diamino-4, 4'-azoxyfurazan (DAAF)
Accession number: 20193307303564
Title of translation: 3, 3'-二氨基-4, 4'-氧化偶氮呋咱(DAAF)的合成, 细化和热分析
Authors: Wang, Jing-Yu1, 2 ; Li, Xu-Yang1, 2; Wu, Bi-Dong1, 2; Yang, Yue1, 2; Liu, Shu-Jie1, 2; An, Chong-Wei1, 2
Author affiliation: 1 School of Environment and Safety Engineering, North University of China, Taiyuan; 030051, China
2 Shanxi Engineering Technology Research Center for Ultrafine Powder, Taiyuan; 030051, China
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 232-235 and 241
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: To obtain the 3, 3'-diamino-4, 4'-azoxyfurazan (DAAF) with good performance, DAAF was prepared with glyoxal and hydroxylamine hydrochloride as raw materials, and the submicron-scale DAAF was obtained by low-temperature dropping recrystallization refinement method. The morphology, crystal forms and thermal decomposition properties of the DAAF samples were characterized by scanning electron microscopy (SEM), X-ray diffractometry (XRD) and differential scanning calorimetry (DSC), respectively. The Kissinger's method, Ozawa's method and Starink's method were used to calculate the apparent activation energy and critical temperature of thermal explosion. The results show that the spherical-like DAAF with a particle size of about 500 nm can be obtained through the recrystallization refinement when the dimethyl sulfoxide solvent is at room temperature (20℃) and non-solvent water at 0℃. The apparent activation energy and critical temperature of the thermal explosion of the refined DAAF were 160.3kJ/mol and 248.6℃, indicating that it has better thermal stability.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 15
Main heading: Activation energy
Controlled terms: Amines - Crystallization - Decomposition - Differential scanning calorimetry - Dimethyl sulfoxide - Particle size - Particle size analysis - Recrystallization (metallurgy) - Scanning electron microscopy - Temperature - Thermoanalysis - X ray diffraction analysis
Uncontrolled terms: 3, 3'-diamino-4, 4'-azoxyfurazan (DAAF) - Apparent activation energy - Critical temperatures - Decomposition property - Furazan - Hydroxylamine hydrochloride - Organic Chemistry - Refinement methods
Classification code: 531.1Metallurgy - 641.1Thermodynamics - 801Chemistry - 802.2Chemical Reactions - 802.3Chemical Operations - 804.1Organic Compounds - 944.6Temperature Measurements - 951Materials Science
Numerical data indexing: Size 5.00e-07m
DOI: 10.14077/j.issn.1007-7812.2019.03.003
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Synthesis and Properties of 3, 3'-Bi(1, 2, 4-oxadiazole)-5, 5'-diylbis(methylene)dinitrate (BODN) as A High Energy and Low Sensitivity Melt-casting Explosive
Accession number: 20193307303480
Title of translation: 高能低感熔铸炸药液相载体3, 3'-联(1, 2, 4-噁二唑)-5, 5'-二甲硝酸酯的合成及性能
Authors: Xue, Qi1, 2 ; Bi, Fu-Qiang1, 2 ; Zhou, Yan-Shui1, 2; Wu, Min-Jie1, 2; Huo, Huan1, 2; Zhang, Jia-Rong1, 2; Luo, Yi-Fen1, 2; Zhai, Lian-Jie1, 2; Zhang, Sheng-Yong1, 3; 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
3 School of Pharmacy, Air Force Medical University, Xi'an; 710032, 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: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 236-241
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: Using diaminoglyoxime and 2-chloro-2-oxoethyl acetate as raw materials, a melt-casting explosive, 3, 3'-bi(1, 2, 4-oxadiazole)-5, 5'-diylbis(methylene)dinitrate (BODN), was synthesized via coupling-dehydration cyclization, hydrolysis and nitration with an overall yield of 54%, and its structure was characterized by IR, 1H NMR, 13C NMR and elemental analysis. The reaction conditions of hydrolysis and nitrition were optimized. Based on the separation and identification of reaction by-product, the mechanism of BODN coupling-dehydration cyclization reaction was discussed. The compatibilities of BODN with RDX, HMX and CL-20 were investigated by DSC method. The detonation parameters of BODN-based melt-casting explosives with RDX, HMX and CL-20 as solid phase were predicted by EXPLO5 software. The results show that the preferred hydrolysis conditions are as follows:n([3, 3'-bi(1, 2, 4-oxadiazole)]-5, 5'-diylbis(methylene)diacetate):n(K2CO3) is 10:1 and the reacting time is 2h with reflux in CH3OH and K2CO3 as hydrolysis solvent. The preferred reaction conditions for nitrition are: under 98% fuming nitric acid / acetic anhydride system, the molar ratio of the 98% fuming nitric acid / acetic anhydride / [3, 3'-bi(1, 2, 4-oxadiazole)]-5, 5'-diylbis(methylene) is 10:5:1, reaction time of 10h. The decomposition peak temperature of BODN is 203.2℃ and it has good compatibility with RDX, HMX and CL-20. The theoretical detonation velocity of BODN/CL-20 with a mass ratio of 7:3 reaches to 8595m/s, 900m/s higher than that of TNT/CL-20.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 14
Main heading: Cyclization
Controlled terms: Casting - Complexation - Dehydration - Detonation - Hydrolysis - Molar ratio - Nitric acid - Potash
Uncontrolled terms: 3, 3'-bi(1, 2, 4-oxadiazole)-5, 5'-diylbis(methylene)dinitrate (BODN) - Compatibility - Melt casting - Organic Chemistry - Thermal behaviors
Classification code: 534.2Foundry Practice - 802.2Chemical Reactions - 804.2Inorganic Compounds
Numerical data indexing: Percentage 5.40e+01%, Percentage 9.80e+01%, Time 3.60e+04s, Time 7.20e+03s, Velocity 8.60e+03m/s, Velocity 9.00e+02m/s
DOI: 10.14077/j.issn.1007-7812.2019.03.004
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Recent Progress of Coating Technologies for Solid Propellant
Accession number: 20193307303524
Title of translation: 固体推进剂包覆技术研究进展
Authors: Bian, Cheng1 ; Zhang, Yan1; Shi, Yi-Juan1; Li, Hong-Yan1; Zhao, Feng-Qi1
Author affiliation: 1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author: Zhao, Feng-Qi (zhaofqi@163.com)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 213-222
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: The research progresses in materials, coating techniques and quality detection techniques of inhibitors for solid rocket propellant were reviewed. For the inhibitor materials based on polymer matrix including unsaturated polyester resin, epoxy resin, polyurethane, silicone and ethylene propylene diene monomer, the latest developments of the polymer modification and filler formulations were summarized. The coating technologies such as injection, paste and winding, and their drawbacks and improvement methods were outlined. The researches and applications of several typical quality inspection techniques for inhibitors including the ultrasonic detection technique, image/vision detection technique, IR detection and laser detection technique, especially the interface-defects detection by using the non-destructive techniques, were introduced. It is suggested that introduction of functional additives to the polymer matrix is effective in improving the comprehensive properties of the inhibitor materials. And the development of coating and nondestructive detection techniques benefits the developments of highly automatic coating technologies with good quality consistency. With 57 references.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 57
Main heading: Plastic coatings
Controlled terms: Additives - Coating techniques - Epoxy resins - Ethylene - Filled polymers - Nondestructive examination - Polyester resins - Rockets - Silicones - Solid propellants - Ultrasonic testing - Unsaturated polymers
Uncontrolled terms: Comprehensive properties - Ethylene propylene diene monomer - Inhibitor - Material science - Non-destructive technique - Nondestructive detection - Solid rocket propellant - Unsaturated polyester resin
Classification code: 524Solid Fuels - 654.1Rockets and Missiles - 753.3Ultrasonic Applications - 803Chemical Agents and Basic Industrial Chemicals - 804Chemical Products Generally - 804.1Organic Compounds - 813.1Coating Techniques - 813.2Coating Materials - 815.1.1Organic Polymers - 951Materials Science
DOI: 10.14077/j.issn.1007-7812.2019.03.001
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.
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Title: Explosion Characteristics of Emulsion Explosive Mixed with RDX Powder
Accession number: 20193307303625
Title of translation: 添加RDX粉末的乳化炸药的爆炸特性
Authors: Chen, Yan1 ; Ma, Hong-Hao1, 2 ; Shen, Zhao-Wu1; Yang, Ming1; Tian, Qi-Chao1
Author affiliation: 1 CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei; 230026, China
2 State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei; 230026, China
Corresponding author: Ma, Hong-Hao (hhma@ustc.edu.cn)
Source title: Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title: Huozhayao Xuebao
Volume: 42
Issue: 3
Issue date: June 1, 2019
Publication year: 2019
Pages: 242-246
Language: Chinese
ISSN: 10077812
CODEN: HUXUFP
Document type: Journal article (JA)
Publisher: China Ordnance Industry Corporation
Abstract: In order to satisfy the demand of reducing critical thickness for explosives applied to metal foil explosion welding, the mixed explosives were obtained by introducing RDX powder into emulsion explosives. The effects of RDX content on the detonation performance of mixed explosives were studied by underwater explosion experiment, detonation velocity test and explosive brisance test. The results show that the critical thickness of mixed explosive decreases significantly with the increase of RDX content. For mixed explosives with RDX mass fraction of 0, 5%, 10%, 15% and 20%, the value of critical thickness was (5.9±0.1), (4.8±0.1), (4.1±0.1), (3.7±0.1) and (3.3±0.1)mm, respectively, while the critical detonation velocity basically remains unchanged at a value of about 2500m/s. All energy output parameters of underwater explosion such as shock overpressure peak, specific shock energy, specific bubble energy, and total energy increase with the increase of RDX content. After adding 5%, 10%, 15% and 20% RDX, the shock overpressure peak at 1.0m from the explosion center increase by 3.8%, 7.4%, 12.7% and 17.3%, respectively, and the total energy increase by 7.2%, 16.8%, 22.2% and 26.4% simultaneously. The brisance of the mixed explosive also increases with the RDX content, and it is more significant within a lower RDX content range. When the mass fraction of RDX are 0, 5%, 10%, 15% and 20%, the brisance of the mixed explosives are 0.25, 0.31, 0.35, 0.37 and 0.42, respectively. Therefore, the mixed explosive is available for explosive welding of metal foil.
? 2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references: 20
Main heading: Detonation
Controlled terms: Emulsification - Explosive welding - Metal foil - Powder metals - Underwater explosions
Uncontrolled terms: Critical thickness - Detonation performance - Detonation velocity - Emulsion explosives - Explosion center - Explosion characteristics - Explosion mechanics - Overpressure peak
Classification code: 472Ocean Engineering - 538.2.1Welding Processes - 802.3Chemical Operations
Numerical data indexing: Percentage 1.00e+01%, Percentage 1.27e+01%, Percentage 1.50e+01%, Percentage 1.68e+01%, Percentage 1.73e+01%, Percentage 2.00e+01%, Percentage 2.22e+01%, Percentage 2.64e+01%, Percentage 3.80e+00%, Percentage 5.00e+00%, Percentage 7.20e+00%, Percentage 7.40e+00%, Size 1.00e+00m, Velocity 2.50e+03m/s
DOI: 10.14077/j.issn.1007-7812.2019.03.005
Database: Compendex
Compilation and indexing terms, ? 2019 Elsevier Inc.

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