爆破器材2024，Vol.53Issue(4)：28-36,9.DOI:10.3969/j.issn.1001-8352.2024.04.005
SEBS与常用单质炸药的相容性研究
Compatibility between SEBS and Commonly Used Single-Compound Explosives
杨巍璐 1宋秀铎 1陈旭 1付康 1袁志锋 1裴江峰1
作者信息
- 1. 西安近代化学研究所(陕西西安,710065)
- 折叠
摘要
Abstract
The compatibility between thermoplastic elastomer hydrogenated styrene-butadiene-styrene block copoly-mers(SEBS)and single-compound explosives hexogen(RDX),octogen(HMX)and hexanitrohexaazaisowurtzitane(CL-20)commonly used in solid propellants was studied by using theoretical trigger bond length trends in molecular dynamics(MD)simulation and decomposition temperature changes in differential scanning calorimetry(DSC)measurements.The results of MD simulation show that the maximum trigger bond length of RDX,HMX and CL-20 in explosive/SEBS blend systems increases with temperature.Compared to the single-component explosive systems,the maximum trigger bond length changes little after blending with SEBS.It is speculated that RDX,HMX,and CL-20 all have good stability after blending with SEBS and is less prone to cause trigger bond fracture.In DSC results,after blending with SEBS,the thermal decom-position temperature changes of RDX,HMX and CL-20 are less than 3℃,indicating that the compatibility of SEBS with RDX,HMX and CL-20 is good.Furthermore,a system of 1,3-dimethyl-1,3-diphenylurea(C2)and 3,4-dinitrofurazan-furoxan(DNTF)with poor compatibility was chosen as the control system for MD simulation and DSC analysis.The maxi-mum trigger bond length significantly increases,and the decomposition temperature in DSC decreases by more than 70℃,which verifies the feasibility of predicting the compatibility by using trigger bond length.关键词
分子动力学模拟/氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物/单质炸药/固体推进剂/相容性Key words
molecular dynamics simulation/SEBS/single-compound explosive/solid propellant/compatibility分类
化学工程引用本文复制引用
杨巍璐,宋秀铎,陈旭,付康,袁志锋,裴江峰..SEBS与常用单质炸药的相容性研究[J].爆破器材,2024,53(4):28-36,9.
