活性金属氢化物的包覆及其在富燃料推进剂中的应用（英文）  

Coatings of Activated Metal Hydride and Application in the Fuel-rich Propellant

作　　者：刘厅[1] 陈昕[1] 韩爱军[1] 叶明泉[1] 石庆壹 潘功配[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《含能材料》2016年第9期868-873,共6页Chinese Journal of Energetic Materials

基　　金：Scientific Research Project of National Ministries,China(40406010201)

摘　　要：为了提高硼氢化钾(KBH_4)、硼氢化钠(NaBH_4)和氢化铝锂(LiAlH_4)的储存稳定性,通过溶剂非溶剂法,用石蜡包覆KBH_4和NaBH_4,通过重结晶法,用萘包覆LiAlH_4。用扫描电镜、红外光谱、X射线衍射研究了样品的表面包覆情况。用红外测温仪测试了添加包覆样品的药剂的燃烧性能。结果表明,KBH_4、NaBH_4和LiAlH_4均完成包覆,NaBH_4包覆状况最好。添加了NaBH_4包覆样品的药剂的燃烧性能有显著提高,燃速提高了5%以上。To improve the storage stability of potassium borohydride（ KBH4 ）, sodium borohydride（ NaBH4 ） and lithium aluminum hydride（ LiAIH4 ）, KBH4 and NaBH4 were coated by paraffin via solvent-nonsolvent method and LiAIH4 was coated by naphthalene via recrystallization. The surface coating stafas of the samples was studied by SEM, FTIR and XRD and the combustion properties of the propellants added into coated sample were tested by an Infrared Thermometer. Results show that KBH4 , NaBH4 and LiAlH4 are completely coated and the coating stafas of NaBH4 is the best. The combustion properties of propellant added with coating-NaBH4 sample are significantly improved and the burning rate is increased by more than 5%.

关 键 词：金属氢化物 溶剂非溶剂法 重结晶法 富燃料推进剂 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]