Effect of Antioxidant on Storage Performance and Life Prediction of HTPB Propellant

4th International Conference on Manufacturing, Material and Metallurgical Engineering

Du, Yongqiang^1 ; Zheng, Jian^1 ; Zhi, Jianzhuang^1 ; Tu, Xin^2

Shijiazhuang Campus, Army Engineering University, Shijiazhuang, China^1

Military Representative Office in Xiaogan District, Wuhan Regional Military Representative Bureau, Army Equipment Department, Xiaogan, China^2

关键词: Accelerated aging test;    Aging properties;    Arrhenius equation;    Critical value;    Evaluation parameters;    Life predictions;    Storage life;    Storage performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/538/1/012047/pdf
DOI  :  10.1088/1757-899X/538/1/012047

来源: IOP

【 摘 要 】

In order to study the aging property of HTPB propellant in storage and the effect of antioxidant on the storage life of propellant, accelerated aging tests were carried out for two types of propellant. A non-linear aging model was introduced into the classical Arrhenius equation, and the starting point of aging was modified. With the maximum elongation as the evaluation parameter, the storage life at 25 °C is 9.6 years with the critical value is 20%, and the storage life is 17.5 years with the critical value is 15%. By controlling the content of antioxidant in propellant, the formula of type I propellant was modified, and the life of propellant after modification was predicted. The storage life is 12.4 years at 25 °C with the critical value is 20%, and the storage life of propellant is 21.3 years when the critical value is 15%. It was proved that the storage life of propellant could be effectively improved by controlling the content of antioxidant.