含LLM-105无烟CMDB推进剂的燃烧性能  

Combustion Performances of Smokeless Composite Modified Double-base(CMDB)Propellants Containing 2,6-Diamino-3,5-dinitro pyrazine-1-oxide(LLM-105)

作　　者：张超[1] 杨立波[1] 袁志锋[1] 张军[1] 贾延斌[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《火炸药学报》2014年第5期77-80,84,共5页Chinese Journal of Explosives & Propellants

基　　金：总装十二五跨行业预研基金(No.51328040501)

摘　　要：采用燃速-靶线法研究了2,6-二氨基-3,5-二硝基吡嗪-1-氧化物（LLM-105）的含量和粒度、不同复合燃烧催化剂（A-Pb/A-Cu/CB、B-Pb/B-Cu/CB、C-Pb/C-Cu/CB）及辅助增塑剂（三醋酸甘油酯（TA）、邻苯二甲酸二乙酯（DEP））对含LLM-105无烟复合改性双基（CMDB）推进剂燃烧性能的影响。结果表明,随着LLM-105含量的增加,不同压强下推进剂的燃速均有明显降低,添加质量分数25%的LLM-105可使10MPa下推进剂的燃速下降达53.3%;粗颗粒LLM-105降低推进剂燃速的效果优于细颗粒,用粗颗粒LLM-105替代等量细颗粒LLM-105,可使不同压强下推进剂的燃速降低,10MPa下推进剂的燃速降低1.5mm/s;添加C-Pb/C-Cu/CB催化剂,推进剂在6～18MPa下的压强指数由0.43降至0.25。用TA替代DEP,可降低推进剂的燃速及压强指数。The effect of content and particle size of 2,6-diamino-3,5-dinitro pyrazine-l-oxide （LLM-105）, and differ- ent composite combustion catalysts （A-Pb/ A-Cu/carbon black（CB）, B-Pb/ B-Cu/ CB, C-Pb/ C-Cu/ CB）and assis- tant plasticizers （triacetate（TA）, diethyl phthalate（DEP）） on the combustion performances of smokeless composite modified double-base（CMDB） propellants was investigated by a burning rate-target line method. The results show that with increasing the LLM-105 content in the formulation of the propellant,the burning rates of propellant under different pressures are significantly decreased. Adding LLM-105 with mass fraction of 25 % in the formulation of the propellant can make the value of burning rate of the propellant under the pressure of 10MPa decrease by 53.30/00. The effect of LLM-105 with coarse particles on decreasing the burning rate of propellant is better than LLM-105 with fine particles. Replacing same amount of LLM-105 with fine particles by LLM-105 with coarse particles can make the burning rate of propellant under different pressures decrease, especially the burning rate of propellant under 10 MPa reduces by 1.5 mm/s. The propellant pressure exponent decrease from 0.43 to 0.25 when the C-Pb/ C Cu/CB catalyst system is used under 6- 18MPa. Replacing DEP in the formulation with TA can make the burning rate and pressure exponent of propellant reduce.

关 键 词：物理化学 固体火箭推进剂 燃速 压强指数 LLM-105 CMDB推进剂 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O643.2[理学—物理化学]