含CL-20的NEPE推进剂各组分热分解的相互影响

The Interaction between the Components in NEPE Propellant Containing CL-20

为深入了解含CL-20的NEPE推进剂的燃烧机理,借助热重-微商热重(TG-DTG)试验研究了含CL-20的NEPE推进剂的热分解特性,探索了主要组分NG、CL-20和AP之间的相互作用。结果表明,该推进剂的热分解过程分为3个阶段:增塑剂(NG)的挥发和分解,PEG和CL-20的分解,AP的分解。CL-20和AP的存在均促进了黏合剂体系中NG与PEG的分解,且CL-20的促进作用强于AP,CL-20的分解产物加速了AP的分解,Al粉在该体系中与其他组分的相互作用较弱。

The thermal decomposition characteristics of NEPE propellant containing CL-20 （CL-20-NEPE propellant） and interaction between the components, such as NG, CL-20 and AP in NEPE propellant containing CL-20, were studied by thermogravimetry （TG）. The results show that the thermal decomposition of CL-20-NEPE propellant proceeds in three stages, firstly the volatilization and decomposition of nitrate ester, secondly the decomposition of PEG and CL-20,thirdly the decomposition of AP. The decomposition of NG and PEG in binder were improved with the existence of CL-20 and AP. The improving effect of CL 20 is greater than that of AP for the decomposition of NG and PEG in binder. The decomposition temperature of AP decrease because of the decomposition product of CL-20. The interaction between A1 and other ingredients is not obvious.