Mechanical and Combustion Characteristics of Ultra-thick Nitroguanidine Gun Propellant

Ling CHEN; Hongye LIANG; Shouyu WANG; Lei WANG; Qiong LIU; Fengqiang NAN; Ping DU; Weidong HE

doi:10.12382/bgxb.2024.1000

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Mechanical and Combustion Characteristics of Ultra-thick Nitroguanidine Gun Propellant

更新时间：2025-10-21

- Mechanical and Combustion Characteristics of Ultra-thick Nitroguanidine Gun Propellant
- Acta Armamentarii Vol. 46, Issue 9, Pages: 241000(2025)
- 作者机构：
  
  1. 南京理工大学化学与化工学院, 江苏南京 210094
  2. 特种能源材料教育部重点实验室, 江苏南京 210094
  3. 国家级特种能源材料资源化与绿色处置技术创新中心, 江苏南京 210094
  4. 辽宁庆阳特种化工有限公司, 辽宁辽阳 111002
  5. 海装上海局驻南京地区第四军事代表室, 江苏南京 210000
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2024.1000
  CLC：
- Received：01 November 2024，
  
  Published Online：24 September 2025，
  
  Published：30 September 2025
- 稿件说明：
移动端阅览
Ling CHEN, Hongye LIANG, Shouyu WANG, et al. Mechanical and Combustion Characteristics of Ultra-thick Nitroguanidine Gun Propellant[J]. Acta Armamentarii, 2025, 46(9): 241000.
DOI：

Ling CHEN, Hongye LIANG, Shouyu WANG, et al. Mechanical and Combustion Characteristics of Ultra-thick Nitroguanidine Gun Propellant[J]. Acta Armamentarii, 2025, 46(9): 241000. DOI： 10.12382/bgxb.2024.1000.

摘要

随着未来战争向全域化作战方式转变

作战武器携行弹药必然面对极端高温或低温贮存、运输和使用等环境。硝基胍发射药具有高能低烧蚀特性

广泛应用于大口径武器。为研究某舰载大口径武器用超大弧厚发射药(弧厚4.2mm)的力学与燃烧等特性

通过差热扫描量热仪-热重分析、密闭爆发器实验、简支梁抗冲击和落锤临界破碎强度测试

研究超大弧厚硝基胍发射药的热分解性能、力学与燃烧性能

并借助扫描电子显微镜、傅里叶红外光谱仪、X-射线光电子能谱等表征研究发射药的结构形貌与组成。研究结果表明:超大弧厚硝基胍发射药在不同温度条件下燃烧性能稳定

燃烧曲线平滑无阶跃

符合发射药燃烧规律;与某定型配方叠氮硝基胍发射药相比

在相同弧厚与相同落锤重量条件下

超大弧厚硝基胍发射药在不同温度条件下的临界破碎的落锤高度更高、冲击强度更大

简支梁抗冲击强度为叠氮硝基胍发射药的1.6倍以上

证明超大弧厚硝基胍发射药力学性能优良;此外

超大弧厚硝基胍发射药的热稳定性良好;研究结论可为今后舰载等高性能作战平台的大口径武器用超大弧厚发射药的研制提供基础支撑与指导。

Abstract

With the transformation of the future war to all-domain operation mode

the ammunitions used for combat weapons will be inevitably subject to extreme high or low temperature in storage

transportation and utilization environments.Nitroguanidine gun propellant has high energy and low ablative properties

which is widely used in large-caliber weapons.In order to study the mechanical and combustion properties of ultra-thick gun propellant (4.2mm thickness) for a ship-borne large-caliber weapon

the thermal decomposition behavior

mechanical and combustion characteristics of ultra-thick nitroguanidine gun propellant with thickness of 4.2mm are studied by the differential scanning calorimeter-thermogravimetric analysis (DSC-TG)

the closed bomb test

the charpy impact strength test and the critical crushing strength test of drop hammer

respectively.The structure morphology and composition of gun propellant is characterized through scanning electron microscope (SEM)

Fourier transform infrared spectrometer (FT-IR) and X-ray photoelectron spectroscopy (XPS).Results demonstrate that the ultra-thickness nitroguanidine gun propellant has stable combustion behavior at different temperatures.The combustion curve is smooth without step

which conforms to the combustion law of gun propellant.The critical breaking height and impact strength of the ultra-thick nitroguanidine gun propellant are higher and larger than those of an approved azido-nitroguanidine gun propellant

under the conditions of the same thickness and drop weight

moreover

the impact-resistance strength of the simply supported beam is more than 1.6 times that of the azido-nitroguanidine gun propellant.It demonstrates that the mechanical properties of ultra-large thickness nitroguanidine gun propellant is considerable excellent.Additionally

the ultra-thick nitroguanidine gun propellant exerts good thermal stability.Hence

this present work prospectively to provide basic support and guidance for the development of ultra-thick gun propellant used by large-caliber weapon for shipborne and other high-performance combat platforms in the future.

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references

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