Structure and Properties of Four-hole Polydopamine-coated Gun Propellant

doi:10.12382/bgxb.2022.0283

Abstract

Abstract:

To address issues such as regressive burning and deterrent migration in oblate spherical propellants, we developed a novel four-hole gun propellant coated with polydopamine (PDA) through self-polymerization of dopamine (DA) on the propellant’s surface. The microstructure, thermodynamics, and combustion performance of the propellant were analyzed using scanning electron microscope, Raman spectrometer, thermogravimetric analyzer, and closed bomb vessel. The results show that PDA can be well coated on the propellant’s surface, and the particle size of PDA can reach 5μm. The surface coating effect of PDA on the propellant can significantly improve the incremental combustion of propellant, resulting in a 42.05% decrease in initial burning activity (L_i), a 60.25% decrease in maximum burning activity (L_m), and a 53.90% increase in burning progressivity index. After accelerated aging, the combustion performance of the PDA-coated four-hole gun propellant changed slightly. After accelerated aging at 55℃ for 30 days, the L_i and L_m only increased by 1.69% and 0.59%, respectively, indicating high long-storage stability for the PDA-coated four-hole gun propellant.

Key words: four-hole gun propellant, polydopamine, surface coating, combustion performance

CUI Libao, YANG Zhao, DING Yajun, ZHOU Jie, XIAO Zhongliang. Structure and Properties of Four-hole Polydopamine-coated Gun Propellant[J]. Acta Armamentarii, 2023, 44(7): 2014-2022.

Figures/Tables 13

References 22

[1]	金志明. 枪炮内弹道学[M]. 北京: 北京理工大学出版社, 2004.
	JIN Z M. Interior ballistics of guns[M]. Beijing: Beijing Institute of Technology Press, 2004. (in Chinese)
[2]	肖忠良. 火炸药导论[M]. 北京: 国防工业出版社, 2019.
	XIAO Z L. Introduction of powder and explosive[M]. Beijing: National Defense Industry Press, 2019. (in Chinese)
[3]	黄振亚, 范建芳, 陈余谦. 叠氮硝胺发射药表面钝感新技术[J]. 兵工学报, 2014, 35(2):182-187. doi: 10.3969/j.issn.1000-1093.2014.02.007
	HUANG Z Y, FAN J F, CHEN Y Q. A new deterring tech-nique of azidonitramine propellant[J]. Acta Armamentarii, 2014, 35(2):182-187. (in Chinese)
[4]	刘波, 王琼林, 刘少武, 等. 发射药钝感剂分布及迁移的研究进展[J]. 含能材料, 2010, 18(4): 447-452.
	LIU B, WANG Q L, LIU S W, et al. Research progress on distribution and migration of deterrent in propellant[J]. Chinese Journal of Energetic Materials, 2010, 18(4):447-452. (in Chinese)
[5]	王琼林, 李上文, 王泽山. 高分子钝感剂在发射药中的扩散性能研究[J]. 火炸药学报, 2000, 23(1): 14-16.
	WANG Q L, LI S W, WANG Z S. Research development for diffusion of deterrent in gun propellant[J]. Chinese Journal of Explosives & Propellants, 2000, 23(1): 14-16. (in Chinese)
[6]	VOGELSANGER B, OSSOLA B, BRONNIMANN E. The diffusion of deterrents into propellants observed by FTIR microspectroscopy-quantification of the diffusion process[J]. Propellants, Explosives, Pyrotechnics, 1996, 21: 330-336. doi: 10.1002/(ISSN)1521-4087 URL
[7]	刘少武, 刘波, 郑双, 等. 等高分子钝感剂在两种发射药中的迁移性能[J]. 含能材料, 2010, 18(6): 635-638.
	LIU S W, LIU B, ZHENG S, et al. Migration performance of polymer deterrent in two kinds of propellant[J]. Chinese Journal of Energetic Materials, 2010, 18(6): 635-638. (in Chinese)
[8]	XIAO Z G, YING S J, XU F M. Progressive burning performance of deterred oblate spherical powders with large web thickness[J]. Propellants, Explosives, Pyrotechnics, 2016, 41(1): 154-159. doi: 10.1002/prep.v41.1 URL
[9]	丁银凤, 梁昊, 丁亚军, 等. DBP和NA在发射药中扩散性能的分子动力学模拟[J]. 含能材料, 2021, 29(1): 53-61.
	DING Y F, LIANG H, DING Y J, et al. Molecular dynamics simulation of DBP and NA diffusion properties in gun propellant[J]. Chinese Journal of Energetic Materials, 2021, 29(1): 53-61. (in Chinese)
[10]	张勇, 丁亚军, 肖忠良. 双基球扁药中的钝感剂迁移现象及其对燃烧性能的影响[J]. 含能材料, 2021, 29(3):220 -227.
	ZHANG Y, DING Y J, XIAO Z L. Migration phenomenon of deterrent in double-base oblate spherical propellant and its influence on combustion performance[J]. Chinese Journal of Energetic Materials, 2021, 29(3):220-227. (in Chinese)
[11]	梁昊, 丁亚军, 李世影, 等. 钝感双基发射药老化迁移机理及动力学过程[J]. 含能材料, 2021, 29(11):1080-1088.
	LIANG H, DING Y J, LI S Y, et al. Aging migration mechanism and kinetic process of deterred DB pro-pellants[J]. Chinese Journal of Energetic Materials, 2021, 29(11): 1080-1088. (in Chinese)
[12]	梁昊, 丁亚军, 李世影, 等. 钝感双基发射药迁移失效评价方法[J]. 兵工学报, 2022, 43(2): 297-304. doi: 10.3969/j.issn.1000-1093.2022.02.007
	LIANG H, DING Y J, LI S Y, et al. Evaluation method for migration invalidation of deterred double-base gun pro-pellants[J]. Acta Armamentarii, 2022, 43(2): 297-304. (in Chinese)
[13]	LIANG H, DING Y J, LI S Y, et al. Combustion performance of spherical propellants deterred by energetic composite deterring agents[J]. CS Omega, 2021, 6(20):13024-13032.
[14]	HUANG P, ZHANG Z K, CHEN Y X, et al. Multi-scale simulation of diffusion behavior of deterrent in pro-pellant[J]. Chinese Journal of Chemical Engineering, 2023, 54: 29-35. doi: 10.1016/j.cjche.2022.03.018 URL
[15]	LEE H, DELLATORE S M, MILLER W M, et al. Mussel-inspired surface chemistry for multifunctional coatings[J]. Science, 2007, 318(5849): 426-430. doi: 10.1126/science.1147241 pmid: 17947576
[16]	JIN A T, WANG Y T, LIN K L, et al. Nanoparticles modified by polydopamine: working as “drug” carriers[J]. Bioactive Materials, 2020, 5(3): 522-541. doi: 10.1016/j.bioactmat.2020.04.003 URL
[17]	HAUSER D, SEPTIADI D, TURNER J, et al. From bioinspired glue to medicine: polydopamine as a bio-medical material[J]. Materials, 2020, 13(7):17-30. doi: 10.3390/ma13010017 URL
[18]	GONG F Y, ZHANG J H, DING L, et al. Mussel-inspired coating of energetic crystals:a compact core-shell structure with highly enhanced thermal stability[J]. Chemical Engineering Journal, 2017, 309: 140-150. doi: 10.1016/j.cej.2016.10.020 URL
[19]	祝青, 吴束力, 肖春, 等. 仿生聚多巴胺对HMX、TATB和铝粉的界面性能改性[J]. 含能材料, 2019, 27(11): 949-954.
	ZHU Q, WU S L, XIAO C, et al. Bioinspired improving interfacial performances of HMX, TATB and aluminum powders with polydopamine coating[J]. Chinese Journal of Energetic Materials, 2019, 27(11): 949-954. (in Chinese)
[20]	HE W, LIU P J, GONG F Y, et al. Tuning the reactivity of metastable intermixed composite n-Al/PTFE by poly-dopamine interfacial control[J]. ACS Applied Materials & Interfaces, 2018, 10(38): 32849-32858.
[21]	许征光, 梁昊, 丁亚军, 等. 四孔长方体发射药的形状函数计算及燃烧性能[J]. 含能材料, 2020, 28(6): 491-497.
	XU Z G, LIANG H, DING Y J, et al. Calculation of shape function and combustion performance of four-hole cuboid gun propellant[J]. Chinese Journal of Energetic Materials, 2020, 28(6): 491-497. (in Chinese)
[22]	YANG P, GU Z P, ZHU F, et al. Structural and functional tailoring of melanin-like polydopamine radical scaven-gers[J]. CCS Chemistry, 2020, 2(2): 128-138. doi: 10.31635/ccschem.020.201900077 URL

编号	溶胀时间/h	DA质量/g	溶胀温度/℃	自聚合时间/h
SD-0	2	0	70	24
SDB-1	1	2.1	50	24
SDB-2	1	3.5	60	24
SDB-3	1	4.9	70	24
SDB-4	1.5	2.1	70	24
SDB-5	1.5	3.5	60	24
SDB-6	1.5	4.9	50	24
SDB-7	2	2.1	60	24
SDB-8	2	3.5	50	24
SDB-9	2	4.9	70	24

编号	溶胀时间/h	DA质量/g	溶胀温度/℃	自聚合时间/h
SD-0	2	0	70	24
SDB-1	1	2.1	50	24
SDB-2	1	3.5	60	24
SDB-3	1	4.9	70	24
SDB-4	1.5	2.1	70	24
SDB-5	1.5	3.5	60	24
SDB-6	1.5	4.9	50	24
SDB-7	2	2.1	60	24
SDB-8	2	3.5	50	24
SDB-9	2	4.9	70	24

样品	L_i/(MPa^-1·s^-1)	L_m/(MPa^-1·s^-1)	B_m	P_i
原药	7.5456	9.5196	0.1290	0.2616
SDB-1	5.5884	7.3027	0.1941	0.3067
SDB-2	5.2228	6.7326	0.2120	0.2891
SDB-3	4.4859	6.2922	0.2657	0.4026
SDB-4	5.3216	6.6601	0.2152	0.2515
SDB-5	5.1429	6.4516	0.2269	0.2544
SDB-6	4.5090	5.9319	0.2623	0.3156
SDB-7	4.7831	6.7083	0.2200	0.4025
SDB-8	4.6578	6.4720	0.2635	0.3895
SDB-9	4.3728	5.9406	0.2894	0.3585

样品	L_i/(MPa^-1·s^-1)	L_m/(MPa^-1·s^-1)	B_m	P_i
原药	7.5456	9.5196	0.1290	0.2616
SDB-1	5.5884	7.3027	0.1941	0.3067
SDB-2	5.2228	6.7326	0.2120	0.2891
SDB-3	4.4859	6.2922	0.2657	0.4026
SDB-4	5.3216	6.6601	0.2152	0.2515
SDB-5	5.1429	6.4516	0.2269	0.2544
SDB-6	4.5090	5.9319	0.2623	0.3156
SDB-7	4.7831	6.7083	0.2200	0.4025
SDB-8	4.6578	6.4720	0.2635	0.3895
SDB-9	4.3728	5.9406	0.2894	0.3585

样品	L_i/(MPa^-1·s^-1)	L_m/(MPa^-1·s^-1)	B_m	P_i
SDB-1	5.5884	7.3027	0.1941	0.3067
SDB-2	5.2228	6.7326	0.2120	0.2891
SDB-1老化	5.6828	7.3457	0.2157	0.2926
SDB-2老化	5.5372	7.1850	0.2482	0.2975