p(BAMO-AMMO)热塑性高能推进剂燃烧转爆轰试验研究

Experimental Study on Deflagration to Detonation Transition(DDT) in p(BAMO-AMMO) Thermoplastic High Energy Propellants

采用燃烧转爆轰(DDT)管法研究了p(BAMO-AMMO)热塑性推进剂主要固体组分RDX和AP含量、AP粒度及级配等对其燃烧转爆轰响应规律的影响。结果表明,在相同试验条件下,含质量分数65%AP的p(BAMOAMMO)推进剂发生了燃烧转爆轰响应,而含等量RDX的p(BAMO-AMMO)推进剂仅发生了燃烧反应。当RDX质量分数从65%增加到85%时,样品由燃烧反应变为燃烧转爆轰反应。含等量细粒度(d50=1.0μm)AP的推进剂发生燃烧转爆轰的倾向较含粗粒度AP(d50=105μm)的低。当粗、细AP以质量比为10∶3级配时,p(BAMOAMMO)推进剂未发生燃烧转爆轰反应。

The effects of contents of main componens RDX and AP for p(BAMO-AMMO)thermoplastic high energy propellants,AP sizes and gradation on the response law of deflagration to detonation transition(DDT)were investigated by DDT tube method.The results show that under the same experimental conditions,the DDT response takes place in propellants containing 65%(mass fraction)AP,while the popellants containing equal amount of RDX only occur combustion reaction.When the mass fraction of RDX increases from 65%to 85%,the sample occurs transfortion from combustion reaction to DDT reaction.The trendency of DDT occurrence for propellant containing equal amount of fine AP with d50=1.0μm is lower than that of propellant containing coarse AP with d50=105μm.When the mass ratio of coarse and fine AP gradation is 10∶3,the DDT reaction of p(BAMO-AMMO)propellant does not happen.