超微细Cu_2O对改善RDX／AP／HTPB推进剂燃烧性能的作用

EFFECT OF SUPERFINE Cu_2O ON IMPROVING THE COMBUSTION BEHAVIOR OF RDX/AP/HTPB PROPELLANT

在以ＡＰ、ＲＤＸ、ＨＴＰＢ及添加剂含量分别为５０％，２５％，１２．５％及１２．５％的基本配方的推进剂中，再添加不同种类、不同粒度及不同份额的催化剂，用声发射法测定了４～８ＭＰａ下推进剂的燃速。实验结果表明：超微细Ｃｕ_２Ｏ（０．２μｍ）能大幅度提高推进剂的燃速，８ＭＰａ下加入２％可使燃速提高７７．１％，是市购化学纯Ｃｕ_２Ｏ（３μｍ）提高幅度的五倍多，与两种含铜催化剂──铜铬氧化物（ＹＢ）、有机铜（Ⅱ）络合物（ＱＣ）混合作用，在８ＭＰａ下可分别使燃速提高１２０％和使压强指数降低５０％。

Acoustic radiating method is used to determine the burning rate of the propellants which contain superfine Cu_2O( 0. 2μm), ordinary Cu_2O( 3μm),copper chromic oxide(YB ),copper(Ⅱ)-containing organic complex(QC)or their different combinations under the pressure of 4～8MPa. From the experimental results, it can be seen that the superfine Cu_2O is significantly beneficial to the burning rate of RDX/AP/ HTPB propellant.2% of this Cu_2O can increase the burning rate by 77.1%, which is 5 times higher than that of ordinary Cu_2O. When combined with YB and QC which are two copper-containing catalysts,it can increase the burning rate by 120% and lower the pressure exponent by 50%, respectively.