硼粉改性对推进剂工艺性能的影响  

Effect of Modified Boron Powder on Propellant Processing Characteristics

作　　者：唐汉祥[1] 陈江[1] 吴倩[1] 李洪旭[1] 周明川[1] 

机构地区：[1]湖北航天化学技术研究所,湖北襄樊441003

出　　处：《含能材料》2005年第2期69-73,i001,共6页Chinese Journal of Energetic Materials

基　　金：国防预先研究(项目编号: 41328030107)

摘　　要：采用HAAKE粘度计测定硼粉/丁羟简单体系和实验推进剂药浆屈服值和表观粘度,研究了硼粉的处理效果和处理硼粉BS对硼含量为35%～40%实验配方药浆工艺性能的影响.结果表明:在研究处理硼粉BD、BW、BT和BS系列中,BS的处理效果最好,处理工艺稳定.用处理硼粉BS制成的实验药浆具有较好的可浇性、流平性和适用期.实验药浆的流体特征,在出料初期2～3 h内呈Casson或Bingham流体,有显著剪切稀化和明显的静止结构恢复特征.In the HTPB/Boron simple system and the HTPB propellant composed of total solid loading 70～75wt% containing modified boron powder B_S 40～35wt%,the effects of modified boron and the processing characteristics of propellant filled boron powder B_S were studied by means of yield value and apparent viscosity measured with HAAKE RV20 M5/SV2LF and M5/SV2 systems. The results show that according to the processing stability,B_S is the best one of all the modified products including B_D、B_W、B_T and B_S. The propellants filled B_S exhibit a good castability,flow level and long potlife,and after mixing 2~3 h the slurry can be described with Casson or Bingham model,when shear up and down to stationary it exhibited obvious shear-thining and constraction recovery respectively.

关 键 词：航空航天材料 富燃料推进剂 复合固体推进剂 改性硼粉 推进剂工艺性能 流变学 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]