铝/有机氟化物复合物对含铝HTPB推进剂燃烧性能的影响  

Effect of Aluminum/Organic Fluoride Composite on the Combustion Properties of Aluminized HTPB Propellants

作　　者：李艺[1] 郭晓燕[1] 杨荣杰[1] 李子妍 王宁飞[2] 

机构地区：[1]北京理工大学材料学院,北京100081 [2]北京理工大学宇航学院,北京100081

出　　处：《火炸药学报》2016年第6期74-79,共6页Chinese Journal of Explosives & Propellants

基　　金：解放军装备发展部探索项目(No.71314093)

摘　　要：为研究有机氟化物(OF)对含铝HTPB固体推进剂燃烧性能的影响,采用球磨法制备了纳米和微米铝/有机氟化物复合物(nmAl/OF和μmAl/OF),将其作为复合添加剂替代微米铝粉加入HTPB推进剂中,并考察其对推进剂燃烧性能的影响。采用SEM、TEM、粒度分析等对nmAl/OF和μmAl/OF复合物及推进剂凝聚相燃烧产物进行了表征。结果表明,nmAl/OF和μmAl/OF复合物有不同的结合状态;添加OF、nmAl/OF和μmAl/OF后,推进剂的爆热值下降约2%;添加nmAl/OF的推进剂配方燃速最低,在3MPa时仅为6.28mm/s,添加OF和μmAl/OF体系的推进剂燃速压强指数相比于原配方降低约20%;添加nmAl/OF的推进剂配方凝聚相燃烧产物粒度(D_(50))比原配方降低约47%。To investigate the effect of organic fluoride on the combustion properties of aluminized HTPB solid propellant, nano and micro aluminum/organic fluoride （OF） composites（μmAl/OF and μmAl/OF） were fabricated by ball milling method. The μmAl/OF and μmAl/OF as composite additives, were added to HTPB propellant instead of aluminum powder. The effect of composite additives on the combustion performance of propellant was investigated. The μmAl/OF and μmAl/OF composites and condensed phase combustion products of propellant were analyzed by scanning electron microscope（SEM） , transmission electron microscope（TEM） and particle size analysis. The results show that the μmAl/OF and μmAl/OF composite have different combination states. The heat of detonation of pro-pellants reduces by about 2% after adding OF, μmAl/OF and μmAl/OF. The formula contained μmAl/OF has the lowest burning rate of 6. 28 mm/s under the pressure of 3 MPa, and compared with the original formulation, the burning rate pressure exponent of two propellants that contained OF and μmAl/OF decreases by about 20%. The particle size（D50） of condensed phase combustion product of the formulation with μmAl/OF reduces by about 47% compared with the original formulation.

关 键 词：球磨法 有机氟化物 含铝推进剂 燃烧性能 HTPB推进剂 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]