三种碳物质对RDX-CMDB推进剂热分解的影响

利用压力ＤＳＣ研究了７ＭＰａ时Ｃ６０、富勒烯烟炱（ＦＳ）和炭黑（ＣＢ）对催化的ＲＤＸ－ＣＭＤＢ推进剂热分解特性的影响。结果表明：使推进剂表现分解热愈大的碳物质，则导致推进剂的燃速愈高。和参比推进剂相比，含ＦＳ的推进剂表现分解热大，故燃速也高，增速作用亦大。不同碳物质导致推进剂表观分解热增加率的大小顺序为：ＦＳ〉ＣＢ〉Ｃ６０。

Effects of C60, Fullerene Soot and Carbon Black on Thermal Decomposition of RDX-CMDB Propellants

The effect of C 60 , fullerene soot (FS) and carbon black (CB) on the thermal decomposition characteristics of catalyzed RDX CMDB propellants under 7MPa was investigated by using pressure differential scanning calorimeter (PDSC). The results show that in comparision with the control propellant, the larger the apparent heat of decomposition of the propellant containing carbon substances, the higher the burning rates of the propellant. The propellant containning FS has larger the apparent heat of decomposition, so the burning rate and the burning rate enhancement of the propellant are higher. The sequence of effcetextent of the three kinds of carbon substances on the enhancement of apparant heat of decomposition is as follows: FS>CB>C 60 .