Liquid Containing The Thermal Sensitivity Test Method

Thermal sensitivity of energetic material has two meanings:thermal decomposition sensitivity and thermal explosion sensitivity. Heat is the most common of all the external stimulations and result in lots of accidents; moreover the way of response to thermal is very complicated. So it's important to study on the thermal sensitivity. Three liquid energetic materials of NB, NE and HHA and four mixture of liquid energetic materials, such as IPN+EHN,NPN+EHN,IPN+NPN,NM+NE are studied by Accelerating Rate Calorimeter(ARC)and Differential Scanning Calorimeter(DSC)for their thermal decomposition in this paper, on the base of which two thermal sensitivity of seven energetic materials are obtained, and further improve the thermal sensitivity standard system.First of all, the decompositions of seven liquid materials were studied by DSC, and thermodynamic parameters were calculated. Combined with the parameters, thermal sensitivity of seven liquid materials is obtained. Conclusion is shown as follows:HHA is more sensitive than other five explosives with thermal instability; NB is the least sensitive which has good thermal stability.Secondly, the thermal sensitivity of seven explosives are studied by ARC. Combined with the thermal parameters of EHN, NPN, IPN, NM, the thermal sensitivity order of eleven liquid energetic materials from high to low is:EHN, HHA, NPN, IPN, IPN+EHN, NPN+EHN, IPN+NPN, NE, NM+NE, NM, NB under the TMR of 5s and5min.At last, thermal sensitivity results of two methods are compared. The arrangement order of Tθis inconsistent from ARC and DSC. The test criterion of thermal sensitivity of liquid energetic materials is improved.