关键词: 推进剂燃速;推进剂压力指数;复合改性双基推进剂

Abstract: Based on the evolution of double-base(DB)propellants, the effect of various factors on burning-rate pressure exponent and the detailed methods for decreasing the pressure exponent for high energy solid propellant are discussed in terms of the experimental data. These discussions are useful for studying the characteristics of a new generation of high energy solid pro-pellant-polyether polyurethane propellant plasticized by nitrate esters.

Key words: Propellant pressure exponent;Propellant burning rate;Modified composite double-base propellant