Liquid Containing A Material Thermal Test Methods And Standards For Research

Energetic material is a kind of typical reactive chemical substance which will exposed to external stimulations inevitably during all links of its life cycle, such as its production, use, storage and transportation. Heat is the most common of all the external stimulations and result in lots of accidents, therefore it's important to study on the response problem of liquid energetic materials to heat (thermal sensitivity issue), which is the purpose of this research. Thermal sensitivity is a measurement on how easily fast chemical reaction will happen. The essence of studying thermal sensitivity of energetic materials is to find the relationship of time to maximum rate (TMR) and the decomposition temperature. Three materials of TEGDN, DEGDN and AZTG are studied by Accelerating Rate Calorimeter (ARC) and Differential Scanning Calorimeter (DSC) in this paper, combined with the thermal parameters of EHN, NPN, IPN, NM from our reseach group, are studied for their thermal sensitivity.First of all, the decompositions of four solid explosives PETN, RDX, HMX and TNT are studied by ARC. Kinetic and thermodynamics parameters are calculated and analyzed. Conclusion can be made that we can take the decomposition temperature corresponding 5s or 5min as the criterion for thermal sensitivity.Secondly, TEGDN, DEGDN and AZTG are studied by ARC and DSC, the conclusion is consistent from different calorimetric experiments. The thermal sensitivity order of seven liquid energetic materials from high to low is: EHN, DEGDN, TEGDN, NPN,IPN,AZTG,NM.At last, a test criterion of thermal sensitivity of liquid energetic materials is drafted.The study results of this paper will be of some reference value and practical significance for establishing testing criterion of thermal sensitivity of liquid energetic materials by calorimetric experiments.