改性双基推进剂粉末自着火行为实验研究  

Auto-Ignition Behaviors of the Composite Modified Double Base Propellants

作　　者：杨猛 余涛 汤成龙[1] 黄佐华[1] YANG Meng;YU Tao;TANG Chenglong;HUANG Zuohua(School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学能源与动力工程学院,西安710049

出　　处：《西安交通大学学报》2023年第4期22-28,共7页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(91941101);中国博士后创新人才支持计划资助项目(BX20220250)。

摘　　要：为降低推进剂意外着火带来的危害,需要对典型改性双基推进剂的自着火行为及热安全性开展研究。使用快速压缩机实验平台,结合高速成像及动态压力采集技术,发展并验证了超快热刺激方法,开展了改性双基推进剂在快速热加载环境(加热速率大于104K/s)下的响应实验,获得了含环三亚甲基三硝胺(RDX)改性双基推进剂典型自着火行为,以及含环四亚甲基四硝胺(HMX)和1,1-二氨基2,2-二硝基乙烯(FOX-7)改性双基推进剂的着火临界条件。结果表明:在1.0 MPa、901.2 K时,含HMX改性双基推进剂未发生着火,而压力升高至3.0 MPa,推进剂样品发生明显的着火现象;对于含HMX和FOX-7改性双基推进剂,其着火临界温度均随压力的增加而降低;在相同压力下,含FOX-7改性双基推进剂的临界着火温度低于含HMX改性双基推进剂的临界着火温度。To decrease the damages brought by auto-ignition,the auto-ignition behaviors and thermal safety of typical composite modified base propellant need to be studied.A rapid compression machine combined with high-speed imaging and dynamic pressure acquisition technology was used to develop and verify rapid thermal stimuli method,conduct auto-ignition experiment of composite modified double base(CMDB)propellant under rapid thermal loading environment(heating rate greater than 104 K/s),and obtain the typical auto-ignition behavior of cyclotrimethylene trinitroamine(RDX)modified double-base propellant,and the ignition critical conditions of cyclotetramethylene tetranitramine(HMX)and 1,1-diamino-2,2-dinitroethylene(FOX-7)modified double-base propellants.The results show that the CMDB containing HMX cannot be ignited at 1.0 MPa and 901.2 K.However,ignition phenomenon occurs when the pressure increases to 3.0 MPa.The critical ignition temperature of the CMDB containing HMX and FOX-7 decreases as the pressure increases.The critical ignition temperature of CMDB containing FOX-7 is lower than that of CMDB containing HMX under the same pressure.

关 键 词：改性双基推进剂 自着火 热安全性 快速压缩机 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V19[航空宇航科学与技术—人机与环境工程]