复合改性单基发射药的制备与性能
吴永刚1,2,符少波1,徐 滨2,詹芙蓉1,丁 琨1,马 当1,廖 昕2

(1.西安北方惠安化学工业有限公司, 陕西 西安 710300; 2.南京理工大学 化学与化工学院,江苏 南京 210094)

复合改性单基发射药; RDX; 聚叠氮缩水甘油醚; GAP; 爆热; 火药力; 化学安定性; 低温力学性能

Preparation and Properties of Composite Modified Single-base Gun Propellant
WU Yong-gang1,2,FU Shao-bo1,XU Bin2,ZHAN Fu-rong1,DING Kun1, MA Dang1,LIAO Xin2

(1.Xi'an North Huian Chemical Co., Ltd, Xi'an 710300, China; 2.School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

composite modified single-base gun propellant; RDX; glycidyl azide polymer; GAP; explosion heat; powder force; chemical stability; mechanical properties at low temperature

DOI: 10.14077/j.issn.1007-7812.202212015

备注

为了提高单基发射药能量并保持其力学性能,采用溶剂法制造工艺,在单基发射药基础配方中加入高能填料RDX和GAP增塑剂,制备了复合改性单基发射药,测试了不同样品的爆热、化学安定性、火药力、低温力学性能,并结合某125mm穿甲弹进行了内弹道性能试验。结果表明,复合改性单基发射药的爆热较单基发射药提高了4.3%以上,火药力较单基发射药提高了7.5%以上,120℃甲基紫化学安定性优于单基发射药,低温落锤冲击性能与单基发射药相当,低温药床抗撞击性能优于制式混合酯发射药。内弹道试验结果表明,复合改性单基发射药在高温区间具有低温感特性; 在高温同等最大膛压下,常温初速与单基发射药相比可提高2.6%。
To improve the energy of single-base gun propellant(SB)while maintaining its mechanical properties, the composite modified single-base gun propellant(CMSB)was prepared by adding RDX and glycidyl azide polymer(GAP)into the basic formula of SB by solvent process. The properties of different samples, such as explosion heat, chemical stability, powder force and mechanical properties at low temperature,were tested and the interior ballistic behavior was tested using a 125mm armour-piercing projectile. The results show that the explosion heat and the powder force are increased by 4.3% and 7.5%, respectively compared with single-base gun propellant. The chemical stability of CMSB by 120℃ methyl violet test is better than that of SB. The low-temperature anti-impact performance of CMSB obtained from dropping hammer impact test is similar to that of SB, and the low-temperature impact resistance of CMSB obtained from the propellant bed impact test is better than that of the standard mixed-ester gun propellant. The internal ballistic test shows that the CMSB has the characteristics of low temperature sensitivity in the high temperature range, and the initial velocity of CMSB propellant charge is 2.6% higher than that of original SB charge under the same maximum pressure at high temperature.
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