火炸药学报2025，Vol.48Issue(12)：1154-1162,9.DOI:10.14077/j.issn.1007-7812.202507013
改性双基推进剂的热分解动力学和热安全性
Thermal Decomposition Kinetics and Thermal Safety of Modified Double-based Propellants
摘要
Abstract
To investigate the thermal decomposition kinetics of composite modified double-based(CMDB)propellants and the effects of RDX or HMX on its thermal safety,differential scanning calorimetry(DSC)and flame sensitivity testing were em-ployed to study the thermal decomposition kinetics and flame sensitivity variation patterns of CMDB,RDX-CMDB(CMDB pro-pellant with RDX),and HMX-CMDB(CMDB propellant with HMX).Simultaneously,based on DSC experiments results com-bined with thermal safety assessment software(TSS),the thermal safety parameters of CMDB propellants were predicted.The results showed that as the heating rate approached zero,the pyrolysis peak temperature(Tp0)and thermal explosion critical temperature(Tbp0)of the propellant increased due to the addition of RDX and HMX,enhancing the thermal stability of the pro-pellant.The flame sensitivity of both RDX-CMDB and HMX-CMDB propellants was lower than that of CMDB propellant,indi-cating that adding RDX or HMX components reduce the thermal sensitivity of CMDB propellant.At a loading mass of 20 kg,the self-accelerating decomposition temperatures(TSADT)of CMDB,RDX-CMDB,and HMX-CMDB propellants were 60℃,91℃,and 112℃,respectively,indicating that the addition of RDX or HMX components effectively enhance the thermal safe-ty of CMDB propellants.关键词
物理化学/改性双基推进剂/CMDB推进剂/差示扫描量热法/火焰感度/热安全性/热稳定性Key words
physical chemistry/modified double-base propellants/CMDB propellant/differential scanning calorimetry/flame sensitivity/thermal safety/thermal stability分类
军事科技引用本文复制引用
于家惠,曹卫国,刘润青,武晨书,刘炫棽,何庆,张云,赵凤起,徐司雨,谭迎新..改性双基推进剂的热分解动力学和热安全性[J].火炸药学报,2025,48(12):1154-1162,9.基金项目
国家自然科学基金(No.12202409) （No.12202409）
含能材料全国重点实验室基金(No.6142603052204) （No.6142603052204）
山西省基础研究重大项目(No.202403021223003) （No.202403021223003）
