火炸药学报2023，Vol.46Issue(12)：1100-1106,7.DOI:10.14077/j.issn.1007-7812.202304005
纳米催化材料与超细高氯酸铵的均匀复合及对复合改性双基推进剂的增速降感研究
The Uniform Combination of Nano-catalytic Materials with Ultrafine Ammonium Perchlorate for Ehancing the Burning Rate and Reducing the Sensitivity of Composite Modified Double-base Propellant
摘要
Abstract
In order to increase the burning rate and decrease the sensitivities of composite modified double-base(CMDB)pro-pellant,supersonic jet milling technology was used to in-situ dispersion of nano catalysts(nano copper chromite and nano cadmi-um oxide)on the surface of ultrafine ammonium perchlorate(AP)to prepare nano-catalytic materials/ultrafine AP composites for using in high burning rate CMDB propellant with GATo.The scanning electron microscopy(SEM),differential scanning calo-rimetry(DSC)test,mechanical sensitivity test and the electrostatic spark sensitivity tests were used to analyze the nano catalyt-ic materials/ultrafine AP composites.The combustion performance,mechanical performance,mechanical sensitivity and stabili-ty of GATo propellant containing nano catalytic materials/ultrafine AP composites were also studied.The results show that with the help of the supersonic jet pulverization force field,while the ultrafine AP was achieved,the nano catalytic materials were uniformly in situ dispersed on its surface,which not only increased the thermal decomposition rate of the ultrafine AP,but also reduced the mechanical sensitivity of ultrafine AP.Compared with the blank GATo propellant,the burning rate of GATo pro-pellants containing nano catalytic materials/ultrafine AP composites increased from 55 mm/s to 70.27 mm/s(20 ℃,10 MPa),the mechanical properties and stability were basically maintained,the friction sensitivity was reduced from 95％to 80％,and the impact sensitivity characteristic drop height value was increased from 13.9 cm to 14.7 cm,achieving an effective balance between high burning rate and low sensitivity of CMDB propellant.关键词
物理化学/纳米催化材料/改性超细AP/复合粒子/高燃速/改性双基推进剂Key words
physical chemistry/nano-catalytic materials/modified ultrafine AP/nano-micro composites/high burning rate/modified double-base(CMDB)propellant分类
军事科技引用本文复制引用
雷红兵,李铎,李强,肖磊,胡玉冰,刘所恩,姜炜,赵凤起,郝嘎子..纳米催化材料与超细高氯酸铵的均匀复合及对复合改性双基推进剂的增速降感研究[J].火炸药学报,2023,46(12):1100-1106,7.基金项目
国家自然科学基金(No.21805139) （No.21805139）
青年科技创新专项基金(No.QKCZ201713) （No.QKCZ201713）
中国科协青年人才托举工程(No.2021QNRC001) （No.2021QNRC001）
