含LLM-105的改性双基推进剂的机械感度

摘要

The influence of the 2,6-diamino-3,5-dinitro pyrazine-1-oxide (LLM-105) content and particle size on the impact sensitivity and friction sensitivity of composite modified double base propellant containing LLM-105 (LLM-105-CMDB propellant) was investigated, and these sensitivities of LLM-105-CMDB propellants were compared with those of composite modified double base propellant containing hexanitrohexaazaisowurtzitane (CL-20-CMDB propellant),3,4-dinitro-furazanfuroxan (DNTF-CMDB propellant)and octogen (HMX-CMDB propellant).The results show that after LLM-105 is substituted for RDX, the impact and friction sensitivity of the propellant is decreased obviously, the impact sensitivity value of LLM-105-CMDB propellant is increased form 23.4cm to 39.3cm, the order of mechanical sensitivity of same content high energy density material from low to high is LLM-105-CMDB, DNTF-CMDB, CL-20-CMDB, HMX-CMDB and RDX-CMDB.%研究了2，6-二氨基-3，5-二硝基吡嗪-1-氧化物( LLM-105)的含量和粒度对含LLM-105的改性双基推进剂机械感度的影响,并将LLM-105-CMDB推进剂的机械感度与含六硝基六氮杂异戊兹烷的改性双基推进剂(CL-20-CMDB)、含3,4-二硝基呋咱基氧化呋咱的改性双基推进剂（DNTF-CMDB）及含奥克托今的改性双基推进剂(HMX-CMDB)的感度进行了比较。结果表明：用LLM-105逐步取代改性双基推进剂中的RDX，推进剂的机械感度也随之降低，撞击感度H 50由23.4cm增加至39.3cm；高能量密度材料含量相同的几种改性双基推进剂机械感度由低往高依次为：LLM-105-CMDB、DNTF-CMDB、CL-20-CMDB、HMX-CMDB、RDX-CMDB。