纳米铝粉与微米铝粉对复合推进剂能量特性的影响  

Effect of Aluminum Nanopowders and Aluminum Micropowders on Energetic Characteristics of HTPB Propellant

作　　者：李猛[1] 赵凤起[1] 罗阳[1] 徐司雨[1] 郝海霞[1] 裴庆[1] 姚二岗[1] 

机构地区：[1]西安近代化学研究所燃烧与爆炸技术重点实验室,陕西西安710065

出　　处：《稀有金属材料与工程》2015年第12期3060-3064,共5页Rare Metal Materials and Engineering

基　　金：国家自然科学基金资助(21173163)

摘　　要：为研究纳米铝粉与微米铝粉对推进剂能量特性的影响规律,采用最小自由能原理计算了含纳米铝粉和微米铝粉的端羟基聚丁二烯(HTPB)复合推进剂能量特性。结果表明,粒径大于150 nm的铝粉,其有效铝含量大于80%,纳米铝粉的氧化层厚度对推进剂配方能量特性参数标准理论比冲影响较大,且粒径越小,影响程度越大,微米铝粉的氧化层厚度对标准理论比冲基本无影响。纳米铝粉和微米铝粉对燃气平均相对分子质量的影响均较小。In order to study the effects of aluminum nanopowders and aluminum micropowders on energetic characteristics of composite propellant, theoretical performance of the propellant were calculated based on the principle of free-energy minimization. The results show that metallic aluminum content is larger than 0.8 if the particle size is larger than 150 nm. The effect of thickness of the oxidized layer of aluminum nanopowders on the theoretical specific impulse of HTPB propellant is obvious, the smaller the particle size, the larger the influence degree. But the thickness of the oxidized layer of aluminum micropowders almost has no influence on the theoretical specific impulse of HTPB propellant. The mean relative molecular mass of HTPB propellant containing aluminum nanopowders and aluminum micropowders are similar.

关 键 词：纳米铝粉 微米铝粉 复合推进剂 能量特性 

分 类 号：V512.3[航空宇航科学与技术—航空宇航推进理论与工程]