药型尺寸对变燃速发射药燃烧渐增性的影响  

Effect of Grain Size on Progressive Combustion of the Variable Burning Rate Propellant

作　　者：马忠亮[1] 李志良[1] 徐方亮[1] 张丽萍[1] 萧忠良[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《含能材料》2007年第2期128-130,共3页Chinese Journal of Energetic Materials

基　　金：国防科工委"十五"预研项目

摘　　要：采用经典密闭爆发器的方法，研究变燃速发射药的药型尺寸与燃烧渐增性的关系。分析了不同配方、药型尺寸变燃速发射药的燃烧实验p-t曲线、L-B曲线特征，得出了配方、药型尺寸对变燃速发射药的燃烧性能影响规律。研究结果表明：在变燃速发射药内外层配方和层厚度确定时，长径比对燃烧渐增性的影响较为明显，发射药药粒长径比越大，燃烧渐增性越好；对双层结构的变燃速发射药，在一定长径比范围内（1．5／1—2．0／1）适当增加阻燃层中高分子含量有利于改善燃烧渐增性。The relation of grain size with progressive combustion of the propellant was studied by closed bomb test. The characteristics of p-t and L-B curves for different prescription and grain size of the variable burning rate propellant were analyzed, and the influence law of gain size on burning properties were obtained. Results show that, for certain prescription and thickness for the inside and outside layers of the variable burning rate propellant, the ratio of length to diameter （ 1.5/1 - 2.0/1 ） affects the progressive combustion more obviously. The ratio of length is higher, the progressive combustion is better.

关 键 词：应用化学 变燃速发射药 渐增性燃烧 药型尺寸 

分 类 号：TQ562[化学工程—炸药化工]