铅铜催化剂在低铝HTPE推进剂中的应用研究  

Research on the application of lead copper catalysts in low aluminum HTPE propellants

作　　者：任蕊 刘长义 高喜飞 辛燕平 张维海[1] 严伍启[1] 何娜 魏娇 李小庆 张宇轩 REN Rui;LIU Changyi;GAO Xifei;XIN Yanping;ZHANG Weihai;YAN Wuqi;HE Na;WEI Jiao;LI Xiaoqing;ZHANG Yuxuan(Xi’an North Huian Chemical Industries Co.,Ltd.,Xi’an 710302,China)

机构地区：[1]西安北方惠安化学工业有限公司,西安710302

出　　处：《兵器装备工程学报》2023年第9期114-121,共8页Journal of Ordnance Equipment Engineering

摘　　要：研究了柠檬酸铅(PbCi)、2,4-二羟基苯甲酸铜(β-Cu)及其与炭黑(CB)的复合物对低铝HTPE推进剂主要组分、燃烧性能、工艺性能及力学性能的影响。结果表明,PbCi、β-Cu对低铝HTPE推进剂燃速表现出不同的催化效果。PbCi对5~11 MPa的燃速影响不明显,但能够提高11~19 MPa的燃速;β-Cu可有效提高5~19 MPa下的燃速。复合催化剂PbCi/CB对推进剂9~19 MPa下的燃速具有抑制作用,复合催化剂β-Cu/CB对燃速的影响与相同含量β-Cu相当。PbCi、β-Cu及其与CB的复合催化剂均能降低5~11 MPa的压强指数,提高11~19 MPa的压强指数。低铝HTPE推进剂药浆工艺性能不受PbCi、β-Cu及其CB复合催化剂的影响;PbCi可有效提高低铝HTPE在-40℃下的延伸率;β-Cu使推进剂20℃及50℃下的抗拉强度和延伸率大幅降低。The effects of lead citrate(PbCi)and 2,4-dihydroxy Copper benzoate(β-Cu)as well as their complexes with carbon black(CB)on the main components and combustion,process,and mechanical properties of low aluminum HTPE propellants are studied.The results indicate that PbCi,β-Cu show different catalytic effects on the burning rate of low aluminum HTPE propellant.PbCi has little effect on the burning rate at 5~11 MPa,but can increase the burning rate at 11~19 MPa.β-Cu can effectively increase the burning rate at 5~19 MPa.The composite catalyst PbCi/CB has an inhibitory effect on the ignition rate at propellant 9~19 MPa,and the effect of the composite catalystβ-Cu/CB on the ignition rate is comparable to that of the same content ofβ-Cu.PbCi,β-Cu and their composite catalysts with CB can reduce the pressure index of 5~11 MPa and increase the pressure index of 11~19 MPa.The process properties of low-alumina HTPE propellant slurry are not affected by PbCi,β-Cu and their CB composite catalysts;PbCi effectively improves the elongation of low-alumina HTPE at-40℃;andβ-Cu causes a significant reduction in tensile strength and elongation of the propellant at 20℃and 50℃.

关 键 词：低铝HTPE推进剂 热分解 燃速 压强指数 工艺性能 力学性能 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]