Central European Journal of Energetic Materials最新文献

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Studies on the High Performance Characteristics of an Aluminized Ammonium Perchlorate Composite Solid Propellant Based on Nitrile Butadiene Rubber 基于丁腈橡胶的含铝高氯酸铵复合固体推进剂的高性能研究

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-12-27 DOI: 10.22211/cejem/145030

Sudhir Singh, Sidharth Raveendran, D. Kshirsagar, M. Gupta, C. Bhongale

In the present study, a high performance composite solid propellant formulation was prepared based on nitrile butadiene rubber (NBR) and dibutyl phthalate (DBP) plasticizer, which has a longer pot life and high density specific impulse. The developed cost effective novel binder system was prepared with readily available raw materials (NBR and DBP). The formulation of the composition was performed by varying the content of the NBR/DBP binder in the range of 14-20%. The rocket performance characteristics were determined theoretically using PROPEP and compared with those of an HTPB based propellant. The rheological, mechanical, physical, ballistic and thermal properties of the NBR/ DBP propellant were studied and compared with literature data for similar compositions based on an HTPB/dioctyl adipate (DOA) binder. The yield stress was determined by spreadibilty measurements, and indicated the superiority of this binder based propellant over existing composite propellants. It was concluded that following decreasing the content of the NBR/DBP binder in the propellant from 20 to 14%: Central European Journal of Energetic Materials ISSN 1733-7178; e-ISSN 2353-1843 Copyright © 2021 Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Poland 493 Studies on the High Performance Characteristics of an Aluminized Ammonium... Copyright © 2021 Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Poland – in the range 58.83-78.45 bar (5.883-7.845 MPa), the pressure index increased from 0.159 to 0.371, – at 68.64 bar (6.864 MPa), the burning rate increased from 4.10 to 6.54 mm/s, but the theoretical specific impulse value did not change significantly (258.0-

本研究以丁腈橡胶（NBR）和邻苯二甲酸二丁酯（DBP）增塑剂为基础，制备了一种具有较长使用寿命和高密度比冲的高性能复合固体推进剂配方。用现成的原材料（NBR和DBP）制备了所开发的具有成本效益的新型粘合剂体系。通过在14-20%的范围内改变NBR/DBP粘合剂的含量来进行组合物的配制。利用推进剂推进剂从理论上确定了火箭的性能特性，并与HTPB基推进剂的性能特性进行了比较。研究了NBR/DBP推进剂的流变、力学、物理、弹道和热性能，并与基于HTPB/己二酸二辛酯（DOA）粘合剂的类似组合物的文献数据进行了比较。通过铺展性测量确定了屈服应力，并表明这种粘合剂基推进剂优于现有的复合推进剂。得出的结论是，在将推进剂中NBR/DBP粘合剂的含量从20%降低到14%之后：《中欧高能材料杂志》ISSN 1733-7178；e-ISSN 2353-1843版权所有©2021Łukasiewicz研究网络-波兰工业有机化学研究所493含铝铵的高性能特性研究。。。版权所有©2021Łukasiewicz研究网络-波兰工业有机化学研究所-在58.83-78.45巴（5.883-7.845兆帕）范围内，压力指数从0.159增加到0.371，在68.64巴（6.864兆帕）下，燃烧速率从4.10增加到6.54 mm/s，但理论比冲值没有显著变化（258.0-

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引用次数: 3

Modification of the Detonation Parameters of Mining Explosives Containing Hydrogen Peroxide and Aluminium Powder 双氧水铝粉矿用炸药爆轰参数的修正

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-12-27 DOI: 10.22211/cejem/145031

J. Paszula, A. Maranda, K. Nikolczuk, Agnieszka Giercuszkiewicz

Presently, due to rising environmental consciousness, numerous actions are being taken to prevent devastation of the natural environment. If explosive mixtures are manufactured in an insufficiently controlled manner, they contain too much ammonium nitrate and generate nitrogen oxides (NOx), which are both harmful for living organism and responsible for negative weather phenomena. However, the products from decomposition of hydrogen peroxide are only oxygen and hydrogen, which are both environmentally friendly. This paper presents the results of research on the impact of two types of aluminium powder on the detonation parameters of mining explosives containing hydrogen peroxide 60% as an oxidiser. The detonation velocities were measured by means of short circuit sensors. Direct measurement of the blast wave overpressure was performed with piezoelectric sensors and the positive phase impulse Central European Journal of Energetic Materials ISSN 1733-7178; e-ISSN 2353-1843 Copyright © 2021 Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Poland 478 J. Paszula, A. Maranda, K. Nikolczuk, A. Giercuszkiewicz Copyright © 2021 Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Poland was analyzed. Measurement of the explosive strength was made by the ballistic pendulum method for 10 g samples. The results of these experiments showed that the addition of both types of aluminium, as well as their content in the explosive mixture, have a significant impact on all of the measured parameters.

目前，由于环保意识的提高，人们正在采取许多行动来防止对自然环境的破坏。如果爆炸混合物的制造控制不充分，它们含有过多的硝酸铵并产生氮氧化物(NOx)，这既对生物有害，也会造成恶劣的天气现象。然而，过氧化氢分解的产物只有氧和氢，两者都是环保的。本文介绍了两种铝粉对含过氧化氢为氧化剂的矿用炸药爆轰参数影响的研究结果。用短路传感器测量了爆轰速度。利用压电传感器和正相脉冲直接测量了爆炸冲击波的超压。e-ISSN 2353-1843版权所有©2021 Łukasiewicz研究网络-波兰工业有机化学研究所478 J. Paszula, A. Maranda, K. Nikolczuk, A. Giercuszkiewicz版权所有©2021 Łukasiewicz研究网络-波兰工业有机化学研究所分析。用弹道摆法测定10 g样品的爆炸强度。实验结果表明，两种铝的加入及其在炸药混合物中的含量对所有测量参数都有显著影响。

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引用次数: 2

Structure and Properties of Chain Branched Nitrocellulose 支链硝基纤维素的结构与性能

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-12-21 DOI: 10.22211/cejem/144708

Yanhua Liu, Ziqiang Shao, Jingjing Yuan, Shuai Jia, Feijun Wang, Yonghong Li, Bingyi Guo, Zhonglin Yang, Y. Zuo

引用次数: 3

Study of the Influence of Sensitizer Content on the Density of a Bulk Emulsion Explosive Used in Underground Operations 敏化剂含量对地下散装乳化炸药密度影响的研究

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-12-21 DOI: 10.22211/cejem/144498

P. Mertuszka, Bartlomiej Kramarczyk

引用次数: 5

Influence of the Striker Material on the Results of High-Speed Impact at a Barrier 冲击材料对障碍物高速冲击结果的影响

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-09-30 DOI: 10.22211/cejem/142615

Y. Voitenko, R. Zakusylo, S. Zaychenko

引用次数: 0

Green Fabrication of Nanoscale Energetic Molecular Perovskite (H2dabco)[Na(ClO4)3] with Reduced Mechanical Sensitivity 降低机械灵敏度的纳米高能分子钙钛矿(H2dabco)[Na(ClO4)3]的绿色制备

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-09-30 DOI: 10.22211/cejem/142572

Lishuang Hu, Zelin Du, Yang Liu, Shida Gong, Chunyu Guang, Xin Li, Zhi Yang, Qi Jia, Kaili Liang

引用次数: 2

Tuning the Laser Ignition Properties of Nitrocellulose-Nitroglycerine-Hexogen Propellants via Incorporation of Carbon Nanotubes 碳纳米管对硝化纤维素-硝化甘油-六元推进剂激光点火性能的调节

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-09-30 DOI: 10.22211/cejem/142604

X. Shi, Y. Jia, Linyu Chen, L. Tian, Jinpeng Shen, C. Pei

引用次数: 3

Effects of Metal Oxides on the Thermal Decomposition Kinetics and Mechanisms of HAN/PVA Based Propellants 金属氧化物对HAN/PVA基推进剂热分解动力学及机理的影响

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-09-30 DOI: 10.22211/cejem/142488

Songsong Hu, L. Xueli, Lin-lin Liu, Bo-Kyong Kang, Zhang Yan

引用次数: 1

A Pressure-Dependent Plasticity Model for Polymer Bonded Explosives under Confined Conditions 约束条件下聚合物粘结炸药的压力依赖塑性模型

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-09-30 DOI: 10.22211/cejem/142512

Q. Wei, Xi-cheng Huang, Pengwan Chen, Rui Liu

The safety of explosives is closely related to the stress state of the explosives. Under some stress stimulation, explosives may detonate abnormally. It is of great significance to accurately describe the mechanical response of explosives for the safety evaluation of explosives. The mechanical properties of polymer bonded explosives (PBXs) strongly depend on pressure. In this study, the mechanical behaviour of PBXs under confined conditions was investigated. It was found that the stress-plastic strain response of a PBX under high confining pressures is a combination of the non-linear and linear hardening portions. However, the linear hardening portion has often been neglected in characterizing the mechanical behaviour of a PBX under such pressures. The Karagozian and Case (K&C) model was applied to characterize the mechanical behaviour of PBXs. The numerical results demonstrated that when the confining pressure was high, the K&C model could not adequately match the experimental data due to the limitation of the damage model. Therefore, a new damage model was developed by means of considering intragranular damage and transgranular damage. This modification made it possible to introduce a linear hardening process into the original K&C model. The method proposed to describe the stress-strain results under high confining pressures was to consider the stress-plastic strain curve, including the nonlinear and linear hardening portions. The damage evolution of the original K&C model and a linear hardening model were applied for the nonlinear and linear hardening portions respectively. Central European Journal of Energetic Materials ISSN 1733-7178; e-ISSN 2353-1843 Copyright © 2021 Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Poland 340 Q. Wei, X. Huang, P. Chen, R. Liu Copyright © 2021 Łukasiewicz Research Network – Institute of Industrial Organic Chemistry, Poland The influence of the linear hardening model on the damage evolution of the original K&C model was included when describing the nonlinear hardening portion. A comparison between simulation and experiment showed that the modified K&C model could well describe the mechanical response of PBXs under different confining pressures.

炸药的安全性与炸药的受力状态密切相关。在一定的应力刺激下，炸药可能会异常引爆。准确描述炸药的力学响应对炸药的安全性评价具有重要意义。聚合物粘结炸药（PBX）的力学性能在很大程度上取决于压力。在本研究中，研究了PBX在受限条件下的力学行为。研究发现，PBX在高围压下的应力-塑性应变响应是非线性和线性硬化部分的结合。然而，在表征PBX在这种压力下的机械行为时，线性硬化部分经常被忽略。应用卡拉戈齐和凯斯（K&C）模型来表征PBX的机械行为。数值结果表明，当围压较高时，由于损伤模型的局限性，K&C模型无法充分匹配实验数据。因此，通过考虑颗粒内损伤和穿颗粒损伤，建立了一种新的损伤模型。这种修改使得在原始K&C模型中引入线性硬化过程成为可能。描述高围压下应力-应变结果的方法是考虑应力-塑性-应变曲线，包括非线性和线性硬化部分。原始K&C模型和线性硬化模型的损伤演化分别应用于非线性和线性硬化部分。中欧高能材料杂志ISSN 1733-7178；e-ISSN 2353-1843版权所有©2021Łukasiewicz研究网络-波兰工业有机化学研究所340 Q.Wei，X.Huang，P.Chen，R.Liu，波兰在描述非线性硬化部分时，包括了线性硬化模型对原始K&C模型损伤演化的影响。模拟与实验结果的比较表明，改进的K&C模型能够很好地描述PBX在不同围压下的力学响应。

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引用次数: 2

Hemispherical Zirconium Liner for Advanced Shaped Charge with Enhanced Behind Armor Effect 半球形锆内衬用于增强背甲效应的先进聚能装药

IF 0.8 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials

Pub Date : 2021-07-16 DOI: 10.22211/cejem/140074

T. Elshenawy, Sherif Elbasuney

引用次数: 0

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