DB/AP系燃烧剂的设计与性能研究

设计了以双基(DB)推进剂、高氯酸铵(AP)为主要组分的燃烧剂,并加入金属可燃剂B、Mg、Al来调整燃烧剂的燃烧性能,采用全自动量热仪、数码摄像机、热电偶和TG-DSC测试了燃烧剂的燃烧热、燃速、火焰温度和热性能.结果表明,金属粉的加入可以提高燃烧剂的燃烧热、燃速和火焰温度,并可以改变其火焰结构;对于长距离、高沸点物质的引燃,3种金属粉中B粉的效果最佳,DB/AP/B的火焰温度可达1 070℃,火焰长度达25cm,其燃烧过程也更稳定,而DB/AP/Mg和DB/AP/Al在燃烧过程中产生大量的火星;AP和金属粉对DB推进剂的热分解没有影响.

Study on the Design and Performance of Double-base Propellant/Ammonium Perchlorate Based Incendiary Agent

Double-base (DB) propellant/ammonium perchlorate (AP) as the main components of the incendiary agent were designed and the combustion performance of incendiary agent was adjusted by adding metal (boron,magnesium,aluminum) combustible agent.The combustion heat,burning rate,flame temperature and thermal performance of incendiary agent were measured by automatic calorimeter,digital camera,thermocouple and TG-DSC.The results show that adding the metal powders can increase the combustion heat,burning rate and flame temperature of the incendiary agent,and change their flame structure.For long-distance ignition of liquid fuel with high boiling point,the effect of boron powder is the best in three kinds of metal powders,the flame temperature of DB/AP/B can reach 1070℃,the flame length reaches 25cm,the combustion process is more stable,while DB/AP/Mg and DB/AP/Al produce a large number of sparks in the combustion process.AP and metal powder have no effect on the thermal decomposition of DB propellant.