HTPE固体推进剂点火能量和燃烧特性的实验研究  

Study on the Experiment of Ignition Energy and Combustion Characteristics of HTPE Solid Propellants

作　　者：李泽旭 苑继飞 刘建忠[1] 孙志昊 赵昱[3] 杨洪涛 LI Ze-xu;YUAN Ji-fei;LIU Jian-zhong;SUN Zhi-hao;ZHAO Yu;YANG Hong-tao(College of Energy Engineering,Zhejiang University,Hangzhou 310013,China;Beijing System Design Institute of Electro-mechanic Engineering,Beijing 100143,China;Xi′an Modern Chemistry Research Institute,Xi′an 710065,China)

机构地区：[1]浙江大学能源工程学院,浙江杭州310013 [2]北京机电工程总体设计部,北京100143 [3]西安近代化学研究所,陕西西安710065

出　　处：《火炸药学报》2024年第11期1022-1030,I0003,共10页Chinese Journal of Explosives & Propellants

摘　　要：利用CO_(2)激光点火燃烧试验系统研究了HTPE固体推进剂的点火能量和燃烧特性,分析了压力、气氛、初始温度(-50~70℃)和燃速调节剂对HTPE固体推进剂燃速、火焰形态、燃烧温度和最小点火能的影响。结果表明,相对于端羟基聚丁二烯(HTPB)固体推进剂,HTPE固体推进剂的火焰强度、燃速、燃烧温度较低;温度、压力和氧气含量的增加可提高HTPE固体推进剂的燃烧强度并降低其最小点火能量,在-50℃环境下,3种HTPE固体推进剂(HTPE_0、HTPE_Ca、HTPE_Sr)的最小点火能量分别为0.738、1.038和1.862J,低温初始环境能够显著增大最小点火能;碳酸钙和碳酸锶对HTPE固体推进剂的燃速具有抑制作用。The ignition energy and combustion characteristics of HTPE solid propellants were investigated by CO_(2) laser ignition and combustion test system.The effects of pressure,atmosphere,initial temperature(-50—70℃)and burning rate regulator on the burning rate,flame morphology,combustion temperature and minimum ignition energy of HTPE solid propellants were analyzed.The results show that HTPE solid propellant has lower flame intensity,burning rate,and combustion temperature than hydroxyl-terminated polybutadiene(HTPB)solid propellant.The increase of temperature,pressure and oxygen content can increase the combustion intensity and decrease the minimum ignition energy of HTPE solid propellant.The minimum ignition energy of the three HTPE solid propellants(HTPE_0,HTPE_Ca,HTPE_Sr)is 0.738,1.038 and 1.862J at-50℃,respectively.The low temperature initial environment can significantly increase the minimum ignition energy.The calcium carbonate and strontium carbonate can inhibit the burning rate of HTPE solid propellant.

关 键 词：物理化学 HTPE固体推进剂 燃速调节剂 点火能 燃烧特性 CO_(2)激光点火 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]