Analysis for Decomposition Characteristics and Piecewise Thermokinetics of Nitramine Modified Double-base Propellant with High Solid Content

作者：Wu, Xiaojuan; Rao, Guoning^*; Chen, Liping; Chen, Wanghua; Wang, Jiangning; Zhang, Caixing

来源：Propellants, Explosives, Pyrotechnics, 2017, 42(10): 1149-1154.

DOI：10.1002/prep.201700077

• RDX-CMDB propellant
• Thermal decomposition
• Differential scanning calorimeter
• Mechanism functions
• Autocatalytic model

The thermal stability and decomposition characteristic of nitramine modified double-base propellant (RDX-CMDB propellant) with high solid content and its components were investigated under dynamic and isothermal conditions by differential scanning calorimetry (DSC). It was found that the mixture of nitrocellulose (NC) and nitroglycerin (NG) had a promote effect on the decomposition of RDX. The activation energy (E) and the pre-exponential factor (A) of two obviously exothermic processes were obtained by Friedman iso-conversional method. The screening method suggested by ICTAC was used to determine the most probable mechanism functions and kinetic parameters of the two processes which are corresponding to the deceleration model and the autocatalytic model. The theoretical value was consistent with the experiment result.

• 出版日期2017-10
• 单位西安近代化学研究所; 河北医科大学; 南京理工大学