The investigation of NTO/HMX-based plastic-bonded explosives and its safety performance  

作　　者：Li-xiaosong Du Shao-hua Jin Qing-hai Shu Li-jie Li Kun Chen Ming-lei Chen Jun-feng Wang 

机构地区：[1]School of Materials Science and Engineering Beijing Institute of Technology,Beijing China [2]Garsu Yinguang Chemical Industry Group Coltd Baiyin,China [3]State Key Laboratory of Explosion Science and Technobogy,Beijing Institute of Technology,Beijing China

出　　处：《Defence Technology（防务技术）》2022年第1期72-80,共9页Defence Technology

基　　金：The authors are grateful to the National Defense Foundation of China(3090021322001,3090020221912,3090021211903.)for financial support of this work.

摘　　要：3-nitro-1,2,4-triazol-5-one(NTO)is the main component of insensitive munitions(IM)formulation because of its outstanding insensitive properties.In this paper,a series of NTO/HMX-based compositeexplosives were prepared and characterized.The study focuses on the effect of NTO on the perfommance of the formulations,especially the safety performance.The results revealed that the mechanical sensi-tivity of fomulations was associated with NTO content,as well as the thermal conductivity,specific heat capacity and Arrhenius parameters.Then,the high amount of NTO using in formulation was proved to be helpful for NTO/HMX-based formulation to exhibit good thermal safety.Besides,by accelerating rate calorimeter(ARC)and a modified cook-off equipment,the pressure and pressure rise rate were proved as the important indicator for judging the thermal safety performance in confined spaces.Finally,the numerical simulation was used as a credible method for predicting the respond temperature of cook-off experiment.

关 键 词：3-nitro-1 2 4-triazol-5-one(NTO) Plastic-bonded explosive(PBX) Safety performance Cook-off 

分 类 号：TQ560.1[化学工程—炸药化工]