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Effect of Curing Pressure on the Microstructure and Mechanical Properties of NEPE Propellant
- Acta Armamentarii (2026)
- 作者机构：
1. 北京理工大学空天科学与技术学院,北京,100081
2. 中国航天科技集团有限公司,北京,100048
3. 江南工业集团有限公司,湖南,湘潭,411207
- 作者简介：
- 基金信息：
DOI：10.12382/bgxb.2025.1063
CLC： V512Received：02 December 2025，
Online First：02 March 2026，
- 稿件说明：
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王行远，武毅，陈锦健，等. 固化压强对NEPE推进剂细观结构及力学性能的影响王行远1，武毅1*，陈锦健1，郭松林1，吉康语1，侯晓2，庞建涛1，谢旭源3[J/OL]. 兵工学报, 2026(2026-03-02). https://doi.org/10.12382/bgxb.2025.1063.
WANG X Y, WU Y, CHEN J J, et al. Effect of curing pressure on the microstructure and mechanical properties of nepe propellant[J/OL]. Acta Armamentarii, 2026(2026-03-02). https://doi.org/10.12382/bgxb.2025.1063. (in Chinese)
王行远，武毅，陈锦健，等. 固化压强对NEPE推进剂细观结构及力学性能的影响王行远1，武毅1*，陈锦健1，郭松林1，吉康语1，侯晓2，庞建涛1，谢旭源3[J/OL]. 兵工学报, 2026(2026-03-02). https://doi.org/10.12382/bgxb.2025.1063. DOI：
WANG X Y, WU Y, CHEN J J, et al. Effect of curing pressure on the microstructure and mechanical properties of nepe propellant[J/OL]. Acta Armamentarii, 2026(2026-03-02). https://doi.org/10.12382/bgxb.2025.1063. (in Chinese) DOI：
摘要
为揭示固化压强对硝酸酯增塑聚醚(Nitrate Ester Plasticized Polyether，NEPE)固体推进剂微观结构与力学性能的影响机理，开展推进剂方坯在常压及不同加压条件下的固化实验。通过热物性测试、力学性能表征以及显微CT和SEM分析，系统研究了固化压强对推进剂物理化学性能、孔隙结构特征及界面形貌演化规律的影响。结果表明，随固化压强升高，推进剂导热性能增强，而热膨胀系数与比热容呈下降趋势；推进剂强度与刚度显著提高，其中在5MPa高压固化条件下最大抗拉强度和弹性模量分别提升11.7%和60%，而延展性基本保持不变。微观分析表明，加压固化有效抑制了固化过程中残余气泡与微孔的形成，使孔隙尺寸减小、分布趋于均匀，并显著增强颗粒界面黏结，从而促进载荷在推进剂内部的均匀传递，其中5MPa高压固化条件下孔隙率降低23.1%。动态压缩结果进一步表明，加压固化可同步提升推进剂的承载能力与吸能特性，并延缓失稳与破坏的发生。研究结果可为NEPE固体推进剂加压固化工艺优化及工程应用提供实验参考和机理支撑。
Abstract
Toelucidate the mechanisms by which curing pressure influences the microstructure and mechanical performance of NEPE solid propellants
curing experiments were conducted on propellant billets under ambient and pressurized conditions. Thermal properties
mechanical behavior
and microstructural characteristics were systematically characterized using thermophysical measurements
mechanical testing
and micro-CT and SEM analyses to investigate the effects of curing pressure on physicochemical properties
pore structure
and interfacial morphology. The results show that increasing curing pressure leads to enhanced thermal conductivity
accompanied by reductions in the coefficient of thermal expansion and specific heat capacity. Meanwhile
the mechanical strength and stiffness of the propellant increase markedly; under a curing pressure of 5 MPa
the ultimate tensile strength and elastic modulus increase by 11.7% and approximately 60%
respectively
while the ductility remains essentially unchanged. Microstructural analyses indicate that pressurized curing suppresses the formation of residual bubbles and micropores during curing
resulting in reduced pore size
a more uniform pore distribution
and strengthened particle–binder interfacial bonding
which facilitates more uniform load transfer within the propellant. In particular
the porosity decreases by 23.1% under the 5 MPa curing condition. Dynamic compression tests further demonstrate that pressurized curing simultaneously improves the load-bearing capacity and energy-absorption capability of the propellant and delays the onset of instability and failure. These results provide experimental evidence and mechanistic insight for theoptimization of pressurized curing processes and engineering applications of NEPE solid propellants.
关键词
Keywords
references
毛成立, 王继, 陈晓龙, 等. 战术导弹中小型固体发动机技术的发展[J]. 上海航天, 2019, 36(6): 55-60.
MAO C L, WANG J, CHEN X L, et al. Technology development of small and medium-sized solid rocket motor for tactical missiles[J]. Aerospace Shanghai, 2019, 36(6): 55-60. (in Chinese)
ELLIS R A, HAMMOND R N, DONGUY P. Advanced space motor demonstration[J]. Journal of Spacecraft and Rockets, 1982, 19(1): 60-65.
LUSHIS D, KIRSCHNER T, PHILLIPS O. Space motor propulsion-A status report[C]//16th Joint Propulsion Conference. 1980: 1271.
武丹,陈文杰,司学龙,等.大型固体火箭发动机发展趋势及关键技术分析[J].武汉大学学报,2021,54(2):102-107.
WU D, CHEN W J, SI X L, et al. Research on development trend and key technologies of large solid rocket motor[J]. Engineering Journal of Wuhan University. 2021, 54(2): 102-107. (in Chinese)
于宝石, 雷勇军, 申志彬, 等. 固体发动机药柱结构固化残余应力分析与控制技术[J]. 航空学报, 2025, 46 (8): 031083.
YU B S, LEI Y J, SHEN Z B, et al. Review on analysis and control technology of curing residual stress in solid motor propellants［J］. Acta Aeronautica et Astronautica Sinica， 2025, 46(8): 031083. (in Chinese)
刘凯, 郜婕, 韩翔, 等. 加压固化工艺对药柱结构完整性的影响[J]. 固体火箭技术,2022, 45(4): 648-652.
LIU K, GAO J, HAN X, et al. Influence of pressure curing on the integrity of grain structure. Journal of Solid Rocket Technology, 2022, 45(4): 648–652. (in Chinese)
宗路航,杜聪,卢山,等.固体火箭发动机药柱加压固化仿真[J].固体火箭技术, 2015,38(5):653-656.
ZONG L H, DU C, LU S, et al. Simulation on pressure cure of solid rocket motor grain[J]. Journal of Solid Rocket Technology, 2015,38(5):653-656. (in Chinese)
刘仔,权恩,褚佑彪,等.固体火箭发动机加压固化理论及仿真研究[J].固体火箭技术,2019,42(5):576-579, 596.
LIU Z, QUAN E, CHU Y B, et al. Theoretical and simulation research on pressure cure of solid rocket motor[J]. Journal of Solid Rocket Technology, 2019,42 (5) :576-579, 596. (in Chinese)
缪求文,申志彬,崔占鑫,等.固体火箭发动机加压固化压强优化设计[J]. 固体火箭技术,2022,45(4):589-593.
MIU Q W, SHEN Z B, CUI Z X, et al. Optimal design of curing/pressure of solid rocket motor. Journal of Solid Rocket Technology, 2022,45(4):589-593. (in Chinese)
ZHANG K, WANG C, LI Q, et al. Strain prediction of grain in solid rocket motor under the pressure curing molding technology[J]. International Journal of Aerospace Engineering, 2023, 2023(1): 8107966.
CHEN G, PAN T, HUI W, et al. Numerical and experimental study on the curing process of NEPE solid rocket propellant considering multi-physical field effects[J]. Case Studies in Thermal Engineering, 2024, 61: 105124.
戴京涛, 赵培仲, 董世康. 胶接结构的耐久性研究[J]. 中国胶粘剂, 2020, 29(7): 16-20, 34.
DAI J T，ZHAO P Z，DONG S K. Study on durability of adhesive bonded structure[J]. China Adhesives, 2020, 29(7): 16-20, 34.
LIANG J, LIU L, QIN Z, et al. Experimental study of curing temperature effect on mechanical performance of carbon fiber composites with application to filament winding pressure vessel design[J]. Polymers, 2023, 15(4): 982.
JOO Y J, KHISHIGBAYAR K-E, CHO K Y, et al. Reduced pressure curing on polycarbosilane precursor for synthesis of silicon carbide fiber[J]. Fibers and Polymers, 2018, 19: 1806-1812.
CHEN X, ZHAN L, PU Y, et al. Effect of cure pressure on microstructure and interlaminar shear strength properties of carbon fiber–reinforced plastics with microwave curing[J]. High Performance Polymers, 2018, 30(9): 1084-1093.
MORADI S, ROMÁN F, CALVENTUS Y, et al. Remarkable thermal conductivity of epoxy composites filled with boron nitride and cured under pressure[J]. Polymers, 2021,13: 955.
戴京涛, 刘浩东, 赵培仲, 等. 修复工艺对复合材料抗拉强度的影响[J]. 兵器材料科学与工程, 2020, 43(03): 18-22.
DAI J T, LIU H D, ZHAO P Z, et al. Effect of repair technology on tensile strength of composite material. Ordnance Material Science and Engineering, 2020, 43(3): 18-22.
王瑞民. 高能固体推进剂固化过程数值模拟研究[D].太原: 中北大学, 2023.
WANG R M. Numerical simulation of solidification process of high energy solid propellant[D]. Taiyuan: North University of China, 2023. (in Chinese)
吴兴宇, 崔庆忠, 徐军. HTPB/TDI粘结体系的固化反应动力学[J]. 含能材料, 2016, 24(1): 1097-1101.
WU X Y, CUI Q Z, XU J. Curing reaction kinetics of HTPB/TDI bonding system[J]. Chinese Journal of Energetic Materials, 2016, 24(11): 1097-1101. (in Chinese)
张伟, 樊学忠, 陈永铎, 等. NEPE 推进剂固化交联的流变学研究[J]. 高等学校化学学报, 2009, 30(6): 1230-1234.
ZHANG W, FAN X Z, CHEN Y D, et al. Rheological study on the crosslinking of NEPE propellant[J]. Chemical Journal of Chinese Universities, 2009, 30(6): 1230-1234. (in Chinese)
周红梅,李季颖,袁嵩,等.固化降温过程中固体火箭发动机药柱温度场应力场分析[J].导弹与航天运载技术,2015,(01):104-106.
ZHOU H M, LI J Y, YUAN S, et al. Temperature field and stress field analysis of SRM’s grain during cooling process after curing[J]. Missiles and Space Vehicles, 2015,(1):104-106. (in Chinese)
朱宏春,王吉强,苗建波.NEPE推进剂药浆固化初期特殊流变性能研究[J].推进技术,2013,34(10):1420-1425.
ZHU H C, WANG J Q, MIAO J B. Research of NEPE propellant slurry rheological characteristic in curing early period[J]. Journal of Propulsion Technology, 2013, 34(10):1420-1425. (in Chinese)
兰艳花,刘亚青,付一政,等.高能推进剂NEPE组分PEG与铝颗粒模型的分子动力学模拟[J].化学推进剂与高分子材料2009,7(4):49-51, 54.
LAN Y H, LIU Y Q, FU Y Z, et al. Molecular dynamics simulation on PEG and Al particle models of high energy NEPE propellent ingredient[J]. Chemical Propellants &
Polymeric Materials, 2009, 7(4): 49-51, 54. (in Chinese)
齐晓飞, 张晓宏, 李吉祯等. NC/NG 共混体系的分子动力学模拟研究[J]. 兵工学报, 2013,34(1): 93-99.
QI X F, ZHANG X H, LI J Z, et al. Molecular dynamics simulation of NC/NG blends[J]. Acta Armamentarii, 2013,34(1): 93-99. (in Chinese)
陈科, 任全彬, 王健儒, 等. 考虑界面损伤的立式贮存药柱结构完整性研究[J]. 推进技术, 2022, 43(10): 347-355.
CHEN K, REN Q B, WANG J R, et al. Structural integrity of vertical storage grain by considering interface damage[J], Journal of Propulsion Technology, 2022, 43(10): 347-355. (in Chinese)
李晔鑫, 职世君, 王虎干, 等. 低温点火条件下发动机装药结构完整性分析及验证[J]. 航空兵器, 2021, 28(04): 82-87.
LI Y X, ZHI S J, WANG H G, et al. Structural integrity analysis and experiment of motor grain under low temperature ignition[J]. Aero Weaponry ,2021 ,28 (4 ):82-87. (in Chinese)
韦世锋.温度和内压作用下装药结构完整性分析[D].西北工业大学,2006.
WEI S F. Structural integrity analysis of charge under temperature and internal pressure[D]. Xi’an: Northwestern Polytechnical University, 2006. (in Chinese)
周仕明,梅园,李道奎,等.国外固体火箭发动机药柱结构完整性评估技术发展及启示[J].固体火箭技术,2024,47(5):604-619.
ZHOU S M, MEI Y, LI D K, et al. Advances in structural integrity assessment technique for foreign solid rocket motor grain[J], Journal of Solid Rocket Technology, 2024,47(5):604-619. (in Chinese)
孙雪莹, 谢丽娜, 霍文龙, 等. HTPB 推进剂贮存老化行为机制及防老化研究进展[J]. 材料导报, 2026, 40(1): 25010030-10.
SUN X Y, XIE L N, HUO W L, et al. Advances in the aging mechanism and anti-aging strategies of HTPB propellant during storage[J]. Materials Reports, 2026, 40(1): 25010030-10. (in Chinese)
韵胜,冯蒙蒙,魏世龙,等.某NEPE推进剂高温加速老化失效机理研究[J].固体火箭技术,2025,48(4):594-601.
YUN S, FENG M M, WEI S L, et al. Failure mechanism of a NEPE propellant under high-temperature accelerated aging[J]. Journal of Solid Rocket Technology, 2025,48(4):594-601. (in Chinese)
陈科, 任全彬, 程吉明, 等. HTPB 推进剂装药发动机立式贮存结构响应分析[J]. 西北工业大学学报, 2022, 40(1): 56-61.
CHEN K, REN Q B, CHENG J M, et al. Structural response analysis of a solid rocket motor with HTPB propellant grain under vertical storage condition[J]. Journal of Northwestern Polytechnical University, 2022, 40(1): 56-61. (in Chinese)
雷宁, 闫心怡. 国外大型固体火箭发动机立式贮存老化研究状况[J]. 固体火箭技术, 2019, 42(03): 419-426.
LEI N, YAN X Y. Research on aging of large solid rocket motor under vertical storage condition[J]. Journal of Solid Rocket Technology, 2019, 42(03): 419-426. (in Chinese)
刘瀚文,付小龙,王江宁,等.基于近场动力学方法的NEPE推进剂断裂失效[J].兵工学报,2025,46(07):164-171.
LIU H W, FU X L, WANG J N, et al. Research on fracture failure of NEPE propellant based on peridynamics[J]. Acta Armamentarii, 2025,46(07):164-171. (in Chinese)
胡少青,鞠玉涛,常武军,等. NEPE 固体推进剂粘-超弹性本构模型研究[J]. 兵工学报,2013,34(2):168-173.
HU S Q, JU Y T, CHANG W J, et al. A visco-hyperelastic constitutive behaviour of NEPE propellant[J]. Acta Armamentarii, 2013,34(2):168-173. (in Chinese)
侯宇菲,许进升,古勇军,等. 基于内聚力法则的高能硝酸酯增塑聚醚推进剂开裂过程细观模型 [J]. 兵工学报,2020,41(11):2206-2215.
HOU Y F, XU J S, GU Y J, et al. Mesoscopic model of cracking process of NEPE propellant based on cohesive zone model[J]. Acta Armamentarii,2020,41(11):2206-2215. (in Chinese)
Liu H, Wang F, Gao H, et al. Comparative study on the characteristics of energy release, decomposition, and combustion between NEPE propellants and HTPB propellants[J]. Combustion and Flame, 2025, 271: 113827.
辛凯,杨凯瑞,霍正,等.NEPE推进剂的高压燃烧性能研究进展[J/OL].推进技术,1-28[2025-10-23].
XIN K, YANG K R, HUO Z, et al. Research progress on high-pressure combustion performance of NEPE propellant. Journal of Propulsion Technology, 1-28[2025-10-23]. (in Chinese)
徐婉.NEPE推进剂固化体系研究[D].湖南大学,2010.
XU W. Investigation on the curing system of NEPE propellant[D]. Hunan University,2010 (in Chinese)
WU Y, FAN Y, CHEN X, et al. Low/intermediate speed impact‐induced ignition and damage of a novel high‐energy solid propellant[J]. Propellants, Explosives, Pyrotechnics, 2023, 48(8): e202300056.
王亚平, 王北海. 丁羟推进剂拉伸脱湿的电子显微镜观测[J]. 固体火箭技术, 1998, 21(2): 71-74.
WANG Y P, WANG B H. Study on dewetting and fracture behavior of HTPB propellant by SEM[J]. Journal of Solid Rocket Technology, 1998, 21(2): 71-74. (in Chinese)
李世奇,强洪夫,陈铁铸,等.单轴拉伸下NEPE固体推进剂细观结构演化行为研究[J].含能材料,2024,32(2):175-182.
LI S Q, QIANG H F, CHEN T Z, et al. Mesostructure evolution behavior of NEPE solid propellant under uniaxial tension[J]. Chinese Journal of Energetic Materials， 2024,32(2):175-182. (in Chinese)
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