硝胺推进剂燃烧性能的实验研究

EXPERIMENTAL INVESTIGATION OF NITRAMINE PROPELLANT COMBUSTION BEHAVIOR

主要探讨了ＲＤＸ丁羟推进剂燃烧性能的规律。研究结果表明：高硝胺配方（硝胺炸药含量不小于４０％）中使用过多的细粒度高氯酸铵（ＡＰ），导致压强指数（ｎ）增加；低硝胺配方中（硝胺炸药含量小于３０％），增加４０～６０目的粗ＡＰ，对燃速（ｒ）、压强指数无改善作用；使用细的ＲＤＸ对降低ｎ值有利。还研究了硝胺炸药（ＮＡ）含量以及不同的粘合剂对ｎ值的影响，并给出了平台推进剂配方的ｒ、ｎ结果。

The combustion behavior of RDX/HTPB propellants is discussed.It was found that the pressure exponent,n,of the propellant containing RDX more than 40% increased with the increase of fine granular ammunium perchlorate(AP)content,while the coarse AP(40～60 mesh) showed little influence on both the burning rate,r,and then of the propellant containing RDX less than 30%.The experimental results indicated that the fine granular RDX is beneficial to the decrease of n,The effect of different binders on the n,and the values of n and r of plateau propellants are dicussed as well.